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Cisco IGX 8400 Series Switches

Multiservice IGX Cookbook

Cisco - Multiservice IGX Cookbook

Document ID: 41382

Updated: Apr 30, 2009

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Introduction

This document provides common IGX configuration scenarios that are typically found in real working networks. The majority of these labs are simple, yet effective, in demonstrating the abilities of the multiservice IGX switch.

Several aspects of IGX configuration are covered, including trunk, voice, data, Frame Relay, and Asynchronous Transfer Mode (ATM) permanent virtual circuit (PVC) provisioning.

Prerequisites

Requirements

Before attempting this configuration, ensure that you meet the following requirements:

  • Basic knowledge of IGX operations and theory.

  • Basic knowledge of VoIP configurations on the 3810 and 3600 platforms.

  • Solid understanding of the following:

    • WAN circuits (T1 through OC-3)

    • Voice theory and technologies

    • Frame Relay

    • Data

    • ATM

Components Used

The information in this document is based on these hardware and software items:

  • The three types of IGX chassis—IGX 8410, 8420, and 8430. The primary difference between the chassis is the number of available card slots:

    • IGX 8410—8 card slots

    • IGX 8420—16 card slots

    • IGX 8430—32 card slots

    Node and card functionality, bus architecture, throughput, and management are identical among the three node types.

  • The system bus backplane on an IGX node supports the following four buses:

    • Cell—a 256 Mbps time division multiplexed (TDM) bus, used by all cards except the Alarm Relay Module (ARM) card. The cell bus transports FastPackets from one card to another.

    • Control—used by the Nodal Processor Module (NPM) to configure and communicate with all the other cards in the node.

    • Timing—used to distribute synchronization signals to all cards in the node.

    • Power—used to distribute –48V DC and ground to all cards in the node.

  • Conrol module—Nodal Processor Card (NPM)

    The NPM is the central processor for the IGX node and stores system software and all configuration information. The NPM card resides in slot 1 and slot 2 only.

  • Trunk modules:

    • Universal ATM Module (UXM)

    • Broadband Trunk Module (BTM)—supports a single T3, E3, or High-Speed Serial Interface (HSSI), which is a ATM trunk and converts FastPackets into ATM cells.

    • ATM Line Module Model B (ALM/B)—supports the same functions as the BTM at full T3 or E3 rates.

  • Voice modules:

    • Universal Voice Module (UVM)—supports a single channelized digital voice line in T1 or E1 format. In addition to optional ADPCM and VAD compression, voice connections terminating on the UVM can be configured for Low Delay-Code Excited Linear Predictive (LD-CELP) compression.

    • Channelized Voice Module (CVM)—supports a single T1, E1, or J1 line and is used to bring in multiplexed digital voice traffic. The CVM can also be used to support transparent data traffic or a combination of voice and data.

  • Data modules:

    • High Speed Data Module (HDM)—supports four high-speed serial data ports and creates FastPackets from the incoming transparent data. EIA/TIA-232, V.35, and EIA/TIAA-449 interfaces are available.

    • Low Speed Data Module (LDM)—supports four or Eight low-speed serial data ports just like the HDM card. EIA/TIA-232 and Digital Data Service (DDS) interfaces are available.

  • Frame Relay modules:

    • Frame Relay Module (FRM)—converts Frame Relay data into FastPackets and supports four serial ports (V.35 or X.21). The FRM takes frame relay frames from multiple end-user devices and segments them into FastPackets. Frame Relay connections terminating on the FRM can be configured to use the ForeSight algorithm. A FRI-V.35 or FRI-X.21 back card is used with the FRM card.

    • Universal Frame Relay Module Un-channelized (UFMU)—supports all of the same functions as the FRM card, in addition the UFMU supports service interworking (SIW) and either 6 or 12 un-channelized lines. The UFI back card is available with a choice of V.35, X.21, or HSSI interfaces.

    • Universal Frame Relay Module Channelized (UFM-C)—supports all of the same functions as the FRM card, in addition the UFM-C supports service interworking (SIW) and either four or eight channelized lines. The UFI back card is available in either T1 or E1 format.

  • ATM Card:

    • Universal ATM Module (UXM)

The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.

Conventions

Refer to the Cisco Technical Tips Conventions for more information on document conventions.

CLI and Basic Node Configuration

This section describes the command line interface and basic node configuration.

Getting Help

The help command (or ? command) provides an online help menu. Use the arrow keys to highlight a command category. Use the Return or Enter keys to select the category to list all commands. You can then select a command in the same way. Use the help command to find a command or list the parameters associated with the command.

Note: The help command does not provide information on the use of a command or the meaning of any parameters.

Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .

Signing On

There are for main ways to access the IGX node:

  • Control port—VT100 terminal Emulation (Default)

  • Aux port—VT100 terminal Emulation

  • LAN port—via Telnet protocol

  • IP Relay—via Telnet protocol

The following illustrates an example of a login screen:

Login Screen Example
i8420-1a       TN    No User         IGX 8420  9.2.33    May  22 2002 01:29 EST 


Enter User ID:

The login screen example above contains the following information:

  • i8420-1a = Node name

  • TN = Access method to the IGX—Telnet

  • 9.2.33 = Currently running switch software release number

Logging Out

To log out of the system, enter the bye command. The following illustrates an example of a logout screen:

Logout Screen Example
i8420-1a       TN    StrataCom       IGX 8420  9.2.33    May  22 2002 01:33 EST 
                                                                                 

Last Command: bye

The bye command terminates your CLI session and places you back at the login prompt.

Using the Virtual Terminal Method to Access a Remote Node

Once you add trunks (see the IGX Trunks section), you have the ability to use a virtual terminal (VT) or access a remote node via internodal communication channels (CC traffic).

In order to access a remote node, both nodes must be in the network, although there does not need to be a trunk directly established between the two nodes. User ID’s and passwords operate network-wide, so you do not need to log in when a VT session is established to another node.

By default, only one VT session can be active on a node at a time. VT sessions cannot be “chained” (for example, VT to node B, then VT to node C, then VT to node D).

To end a VT session, use the bye command.

The following illustrates an example of a VT session, where IGX-B is the node name with which you want to connect:

VT Session Example—Using the vt Command
IGX-A       TN    Cisco       IGX 8420  9.3.45    May  22 2003 01:41 EST 
 
NodeName Alarm
IGX-B
IGX-A
IGX-C
                                                                   
This Command: vt IGX-B

The following illustrates the results of the vt IGX-B command—you are now in node IGX-B:

VT Session Example—IGX Node Accessed
IGX-B       VT    Cisco       IGX 8410  9.3.45    May  22 2003 01:41 EST 

Next Command:

The VT text in the illustration above indicates that you have access to the IGX node (IGX-B) via virtual terminal.

Clearing and Redrawing

The redscrn command can be used to redraw the active screen. This is useful if your terminal application and/or screen display shows garbled characters, which can occur over modem dial-in lines with poor line quality.

The following illustration shows a screen with garbled characters (in bold):

Garbled Characters
i8420-1a       TN    StrataCom       IGX 8420  9.2.33    May  22 2002 01:52 EST 
 
   FrontCard  BackCard                      FrontCard  BackCard
   Type  Rev  Type     Rev  Status          Type  Rev  Type     Rev  Status
1  NPM   BRS                Active        9  UFM   ACL  T1D      AB   Active
2  NPM   E-@                Upgraded     10 HDM   CFF  V35      AJ   Standby-T
3  ALM   BDH  UAI-T3   AB   Standby      11 Empty                               
4  FRM   EMY  FRI-T1   AM   Standby-T    12 Empty            
5  Empty                                 13 UFMU  AAA  Empty         Standby
6  FRM   JNB  FRI-V35  BH   Standby      14 UVM   EKH  T1-2     AA   Active
7  NTM   FHK  T1       AL   Standby      15 UVM   EDH  T1-2     AA   Active
8  UXM   BER  E1-IMA   AA   Active       16 UVM   EKH  T1-2     AC   StandbT
                                                                                
Last Command: dspcds

The following illustration shows the the same screen redrawn with the redscrn command to clear the garbled characters:

Redrawn Screen
i8420-1a       TN    StrataCom       IGX 8420  9.2.33    May  22 2002 01:52 EST 
 
   FrontCard  BackCard                      FrontCard  BackCard
   Type  Rev  Type     Rev  Status          Type  Rev  Type     Rev  Status
1  NPM   BRS                Active        9  UFM   ACL  T1D      AB   Active
2  NPM   ERS                Upgraded     10 HDM   CFF  V35      AJ   Standby-T
3  ALM   BDH  UAI-T3   AB   Standby      11 Empty                               
4  FRM   EMY  FRI-T1   AM   Standby-T    12 Empty            
5  Empty                                 13 UFMU  AAA  Empty         Standby
6  FRM   JNB  FRI-V35  BH   Standby      14 UVM   EKH  T1-2     AA   Active
7  NTM   FHK  T1       AL   Standby      15 UVM   EDH  T1-2     AA   Active
8  UXM   BER  E1-IMA   AA   Active       16 UVM   EKH  T1-2     AC   Standby
                                                                                
Last Command: redscrn

Configuring a Node Name

The cnfname command specifies the name by which a node is known within a network. You can change a node name at any time—the new node name is automatically distributed to other nodes within the network.

Note: Node names must start with a letter and contain up to eight alphanumeric characters. You may also use hyphens ( - ), and underscores ( _ ). Node names are case sensitive and duplicate node names are not allowed in a network.

The following illustration shows the IGX-A node name is identified with the dspnds command:

Display Node Name
IGX-A       TN    Cisco       IGX 8420  9.3.45    May  22 2003 02:01 EST 

NodeName Alarm
IGX-B
IGX-A
IGX-C

Last Command: dspnds

The following illustration shows the IGX-A node name is changed to IGX-NEW with the cnfname command:

Changed Node Name
IGX-NEW        TN    Cisco       IGX 8420  9.3.45    May  22 2003 02:01 EST 

NodeName    Alarm            Packet Line
IGX-B
    6-7/IGX-C              4.1-8.1/IGX-NEW           4.2-8.2/IGX-NEW
IGX-NEW
    8.1-4.1/IGX-B          8.2-4.2/IGX-B
IGX-C
    7-6/IGX-B

Last Command: cnfname IGX-NEW

Configuring the Time Zone

Use the cnftmzn command to set the local time zone for the nodes. Configuring the time zone for a node ensures that the node time is correct for the local area.

caution Caution: If you do not set the node to the correct local time zone, it affects the time stamps in the event, software, and card error logs.

As an example, the cnftmzn EST command sets the node to the Eastern Standard Time Zone.

IGX Trunks

This section contains the following configuration and user information sections:

Configuring NTM Trunk

Complete the following steps to configure an NTM trunk:

  1. Use the uptrk ntm-slot# command, where ntm-slot# is the slot number in which the NTM card resides, to bring up the NTM trunk. This activates the physical port on this slot, and sends a signal out the interface based on your configurations (see Step 2).

  2. Use the cnftrk ntm-slot# command, where ntm-slot# is the slot number in which the NTM card resides, to configure the NTM trunk as needed:

    Configuring an NTM Trunk
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 23 2003 13:30 CST 
    
    TRK  8 Config         T1/24    [8000  pps]  NTM slot:8                         
    Line DS-0 map:        0-23                Deroute delay time:   0 seconds    
    Pass sync:            Yes                
    Loop clock:           No                 
    Statistical Reserve:  1000   pps         
    Routing Cost:         10                 
    Idle code:            7F hex             
    Restrict PCC traffic: No                 
    Link type:            Terrestrial        
    Line framing:         ESF                 
    Line coding:          B8ZS               
    Line cable type:      ABAM              
    Line cable length:    0-133 ft.          
    Traffic:              V,TS,NTS,FR,FST    
    Incremental CDV:      0
    
    Last Command: cnftrk 8 0-23 Y N 1000 10 7F N TERRESTRIAL ESF B8ZS 4 V,TS,NTS,FR,FST 0

    Note: Ensure that the line coding, framing, and DS0 map are identical on both sides.

  3. Use the addtrk ntm-slot# command, where ntm-slot# is the slot number in which the NTM card resides, to add the NTM trunk to the network:

    Adding the NTM Trunk
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 23 2003 13:33 CST 
    
    TRK        Type   Current Line Alarm Status                  Other End
     8         T1/24  Clear - OK                                 IGX-A/4
    
    Last Command: addtrk 8
    

  4. Use the dspload ntm-slot# command, where ntm-slot# is the slot number in which the NTM card resides, to display the NTM trunk loading screen:

    Displaying the Configured NTM Trunk Loading
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 23 2003 13:33 CST 
    
    Configured Trunk Loading:  TRK  IGX-B 8--4 IGX-A
    Load Type             Xmt-p    Rcv-p
    NTS                       0        0  Conid In Use+Avail:       0+  213=  213
    TS                        0        0  VPC conids:               0/256
    Voice                     0        0
    BData A                   0        0  Trunk type is Terrestrial
    BData B                   0        0  Trunk does not support cell routing
    CBR                       0        0  Trunk does not use ZCS
    nrt-VBR                   0        0  Trunk end doesn't support complex gateway
    rt-VBR                    0        0  Traffic: V TS NTS FR
    ABR                       0        0           FST
    Total In Use              0        0
    Reserved               1000     1000
    Available              7000     7000
    Total Capacity         8000     8000
    
    Last Command: dspload 8
    

Configuring UXM Trunks

Complete the following steps to configure a UXM trunk:

  1. Use the uptrk command on both sides to bring up the UXM trunk. This activates the physical port on this slot, and sends a signal out the interface based on your configurations. Notice that the trunk will be in a RED alarm state until both sides of the trunk are upped, and the two sides are cabled together.

    Using the uptrk Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    June 13 2003 15:10 EST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    16.1       OC3    Major - Loss of Sig (RED)                  -
    
    
    
    Last Command: uptrk 16.1
    

    Using the uptrk Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 13 2003 14:10 CST
    
    TRK        Type   Current Line Alarm Status                  Other End
    13.1       OC3    Major - Loss of Sig (RED)                  -
    
    
    
    This Command: uptrk 13.1
    

  2. Wait until both sides are "Clear - OK" and then use the addtrk 16.1 command to add a UXM trunk to the network:

    Adding a UXM Trunk
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 13 2003 14:12 CST 
    
    TRK        Type   Current Line Alarm Status              Other End
    13.1       T1/24  Clear - OK                             IGX-A/16.1
    
    Last Command: addtrk 13.1
    

Configuring UXM IMA Trunks

This section describes how to build and configure UXM inverse multiplexing over ATM (IMA) trunks between nodes, and how to configure retained links.

Note: In the IMA protocol, "retained links" are the minimum number of links (T1s or E1s) that must be active for the entire IMA group to stay active.

  1. Use the uptrk command with two T1s in the IMA group to bring up the UXM IMA trunk:

    Using the uptrk Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    June 13 2003 15:22 EST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    16.1(2)    T1/47  Clear - OK                                 -
    
    Last Command: uptrk 16.1-2
    

    Using the uptrk Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    June 13 2003 14:22 CST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    13.1(2)    T1/47  Clear - OK                                 -
    
    Last Command: uptrk 13.1-2
    

  2. Use the cnftrk command to configure the UXM IMA trunk with one line configured for retained links:

    Using the cnftrk Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    June 13 2003 15:24 EST
    
    TRK 16.1(2) Config    T1/47    [7094  cps]  UXM slot:16
    IMA Group Member(s):  1-2                 Line coding:          B8ZS
    Retained links:       1                   Line cable type:      ABAM
    Transmit Trunk Rate:  7094   cps          Line cable length:    0-131 ft.
    Rcv Trunk Rate:       7094   cps          HCS Masking:          Yes
    Pass sync:            Yes                 Payload Scramble:     No
    Loop clock:           No                  Connection Channels:  256
    Statistical Reserve:  1000   cps          Gateway Channels:     200
    Header Type:          NNI                 Traffic:V,TS,NTS,FR,FST,CBR,N&RVBR,ABR
    VPI Address:          1                   Incremental CDV:      0 
    Routing Cost:         10                  IMA Protocol Option:  Enabled
    Idle code:            7F hex              IMA Max. Diff. Dly:   200 msec.
    Restrict PCC traffic: No                  IMA Clock Mode:       CTC
    Link type:            Terrestrial         Deroute delay time:   0 seconds
    Line framing:         ESF                 VC Shaping:           No
    TRK 16.1(2) Config    T1/47    [7094  cps]  UXM slot:16
    VPC Conns disabled:   No
    
    Last Command: cnftrk 16.1 1-2 1 7094 7094 Y N 1000 NNI 1 10 7F N TERRESTRIAL 
    ESF 1 Y N 200 V,TS,NTS,FR,FST,CBR,NRT-VBR,ABR,RT-VBR 0 200 NN
    

  3. Use the addtrk command to add the UXM IMA trunk to the network:

    Using the addtrk Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    June 13 2003 14:31 CST 
    
    TRK        Type   Current Line Alarm Status           Other End
    13.1(2)    T1/47  Clear - OK                          IGX-A/16.1(2)
    16.1.1     OC3    Clear - OK                          IGX-A/15.1.1
    
    Last Command: addtrk 13.1
    

    Points of interest you should be aware of in this configuration:

    • Available bandwidth = 7094 (2 T1s - IMA overhead):

      • 1 DS0 = 151 CPS

      • 1 T1 = 3622 CPS

    • IMA overhead:

      • 1 DS0 for 1 to 4 T1s in the IMA group

      • 2 DS0 for 5 to 8 T1s in the IMA group

Virtual Trunk Overview

The following compatibility issues should be followed:

  • A virtual trunk is simply a trunk defined over a public ATM cloud. Within the cloud, one virtual trunk is equivalent to one Virtual Path Connection (VPC) or Virtual Circuit Connection (VCC). There are some rules to be concerned with when building virtual trunks.

    The following virtual trunk pairs are allowed:

    • Broadband Switch Module (BXM)/BXM

    • BXM/UXM

    • UXM/UXM

    • Broadband Network Interface (BNI)/BNI

    The following virtual trunk pairs are not allowed because of the different cell structures used between the three cards. The BNI uses a Stratacom Trunk Interface (STI) cell format, whereas the BXM and UXM use a standards format User Network Interface (UNI)/Network Node Interface (NNI) cell format.

    • BXM/BNI

    • UXM/BNI

The following illustration shows cell formats:

image037.gif

Virtual Trunk Wraparound Example

This sections describes how to use a virtual trunk wraparound solution to build a VT between two IGX nodes. In this example, the Virtual Path Connection (VPC) that is usually purchased from an ATM provider, has the following:

  • Constant Bit Rate (CBR) traffic type

  • A Virtual Path Identifier (VPI) of 1

image008a.gif

Note: Typically, the VT wraparound solution was used in 9.1.x based networks, as 9.1.x switch software did not support a native virtual trunk.

The virtual terminal wraparound configuration steps are listed below:

  1. Cabling for VT wraparound consists of 2 physical connections to be made on each IGX UXM card (see illustration above):

    • For For IGX-A:

      • 15.1 => Cabled to ATM Provider

      • 15.2 => 15.3

    • For IGX-B:

      • 16.1 => Cabled to ATM provider

      • 16.2 => 16.3

  2. Bring up two lines and ports:

    1. Use the following command on the IGX-A:

      • upln 15.1

      • upln 15.2

      • upport 15.1

      • upport 15.2

    2. Use the following command on the IGX-B:

      • upln 16.1

      • upln 16.2

      • upport 16.1

      • upport 16.2

      You can verify the line configuration with the dsplncnf command:

      Using the dsplncnf Command
      IGX-B       TN    Cisco      IGX 8420  9.3.45    June 26 2003 12:09 EST 
      
      LN  16.1 Config       OC3                   UXM slot:16                        
      Loop clock:           No                 
      Line framing:         STS-3C             
      Idle code:            7F hex             
      HCS Masking:          Yes                
      Payload Scramble:     Yes                
      Frame Scramble:       Yes                
      
      Last Command: dsplncnf 16.1
      

      You can verify the port configuration with the dspport command:

      Using the dspport Command
      IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:09 EST 
      
      Port:       16.1    [ACTIVE  ]
      Interface:          OC3                   CAC Override:          Enabled
      Type:               UNI                   %Util Use:             Disabled
      Speed:              353208 (cps)          GW LCNs:               200
      SIG Queue Depth:    640                   Reserved BW:           0 (cps)
      Alloc Bandwidth:    353208 (cps)          VC Shaping:            Disabled
      Protocol:           NONE
      
      Last Command: dspport 16.1
      

  3. Add a VPC connection on each IGX between lines 2 and 3:

    1. Use the following command to add the connection for IGX-A:

      addcon 15.1.1.* IGX-A 15.2.1.* cbr 10000 * * 5 * * *
      

      You can use the dspcon command to display the added VPC:

      Displaying the VPC Connection for IGX-A
      IGX-A       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:13 EST 
      
      Conn:  15.1.1.*          IGX-A    15.2.1.*           cbr      Status:OK
         PCR(0+1)     % Util    CDVT(0+1)     Policing 
        10000/10000  100/100   10000/10000     5/5
      
      Pri: L  Test-RTD: 255 msec
      Path:   Route information not applicable for local connections
      
         PCR(0+1)      % Util       CDVT(0+1)       Policing   VC Qdepth       CLP Hi
      10000/10000     100/100      10000/10000          5      160/160         80/80
      
      CLP Lo  
      35/35
      
      Last Command: dspcon 15.1.1.*
      

    2. Use the following command to add the connection for IGX-B:

      addcon 16.1.1.* IGX-B 16.2.1.* cbr 10000 * * 5 * * *
      

      You can use the dspcon command to display the added VPC:

      Displaying the VPC Connection for IGX-B
      IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:14 EST 
      
      Conn:  16.1.1.*          IGX-B    16.2.1.*           cbr      Status:OK
         PCR(0+1)     % Util    CDVT(0+1)     Policing 
        10000/10000  100/100   10000/10000     5/5
      
      Pri: L  Test-RTD: 255 msec
      Path:   Route information not applicable for local connections
      
         PCR(0+1)      % Util       CDVT(0+1)       Policing   VC Qdepth       CLP Hi
      10000/10000     100/100      10000/10000          5      160/160         80/80
      
      CLP Lo  
      35/35
      
      Last Command: dspcon 16.1.1.*
      

      Note: The policing for the two different connections is intentionally set to 5, which turns policing off for these connections. Setting policing off for these connections causes the trunk to act as the policing function, not the wraparound connection.

  4. Use the addtrk command to add the trunk to the network:

    Adding the Trunk to the Network
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:15 EST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    16.3.1     OC3    Clear - OK                                 IGX-A/15.3.1
    
    Last Command: addtrk 16.3.1
    

    You can use the dspload command to display the trunk information:

    Using the dspload Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:15 EST 
    
    Configured Trunk Loading:  TRK  IGX-B 16.3.1--15.3.1 IGX-A
     Load Type             Xmt-c    Rcv-c
     NTS                       0        0  Conid In Use+Avail: 0+256= 256
     TS                        0        0  VPC conids:               0/256
     Voice                     0        0
     BData A                   0        0  Trunk type is Terrestrial
     BData B                   0        0  Trunk supports cell routing
     CBR                       0        0  Trunk does not use ZCS
     nrt-VBR                   0        0  Trunk end supports all gateway 
                                               types
     rt-VBR                    0        0  Gateway conns:  0/200
     ABR                       0        0  Traffic: V TS NTS FR FST CBR NRT-VBR
     ABR RT-VBR
     Total In Use              0        0       
     Reserved               1000     1000
     Available              8962     8962
     Total Capacity         9962     9962
                                                                                    
    Last Command: dspload 16.3.1
    

    You can use the dsptrks command to display the added trunks:

    Using the dsptrks Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 12:16 EST 
    
    TRK        Type   Current Line Alarm Status            Other End
     8         T1/24  Clear - OK                           IGX-A/4
    13.1(2)    T1/47  Clear - OK                           IGX-A/16.1(2)
    16.3.1     OC3    Clear - OK                           IGX-A/15.3.1
    
    Last Command: dsptrks
    

Troubleshooting Wraparound Trunks

This section describes common failures and verifications you can perform to resolve the failures.

If an addtrk command fails with a No response from other node or a Comm Fail message, communication between the two adjacent nodes failed. Use the following methods to resolve the failure:

  • Use the cnftrk command to verify correct payload scrambling.

  • Verify correct VPI values—they must match what the VPC provider is using.

  • Investigate the local connection for problems.

  • Investigate the ATM provider for dropped ATM cells.

Native Virtual Trunks

This section describes how to use a native virtual trunk configuration to build a constant bit rate (CBR) virtual trunk between two IGX switches.

In this procedure:

  • The VPC is provided as the ATM cloud, via a BPX VP connection

  • CBR traffic type is used

  • VPI of 1 is used

  1. Use the uptrk command to bring up the VT:

    Using the uptrk Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 11:27 EST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    16.1.1     OC3    Clear - OK                                 -
    
    Last Command: uptrk 16.1.1
    

  2. Use the cnftrk command to configure the trunk with CBR traffic, class, and VPI of 1:

    Using the cnftrk Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 11:28 EST 
    TRK 16.1.1 Config     OC3      [353207cps]  UXM slot:16
    Transmit Trunk Rate:  353207 cps          Gateway Channels:     200
    Rcv Trunk Rate:       353207 cps          Traffic:V,TS,NTS,FR,FST,CBR,N&RVBR,ABR
    Pass sync:            No                  Vtrk Type / VPI:      CBR / 1
    Loop clock:           No                  Incremental CDV:      0
    Statistical Reserve:  1000   cps          Frame Scramble:       Yes
    Header Type:          UNI                 Deroute delay time:   0 seconds
    Routing Cost:         10                  VC Shaping:           No
    Idle code:            7F hex              ILMI run on the card: No
    Restrict PCC traffic: No                  F4 AIS Detection:     No
    Link type:            Terrestrial
    Line framing:         STS-3C
    HCS Masking:          Yes
    Payload Scramble:     Yes
    Connection Channels:  256
    
    Last Command: cnftrk 16.1.1 353207 353207 N N 1000 UNI 10 7F N TERRESTRIAL
     STS-3C Y Y 200 V,TS,NTS,FR,FST,CBR,NRT-VBR,ABR,RT-VBR CBR 1 0 Y N N N
    

  3. Use the addtrk command to add the trunk to the network:

    Using the addtrk Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 11:33 EST 
    
    TRK        Type   Current Line Alarm Status                  Other End
    16.1.1     OC3    Clear - OK                                 IGX-A/15.1.1
    
    Last Command: addtrk 16.1.1
    

    You can use the dspload command to display your configuration:

    Using the dspload Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    June 26 2003 11:41 EST 
    
    Configured Trunk Loading:  TRK  IGX-B 16.1.1--15.1.1 IGX-A
     Load Type             Xmt-c    Rcv-c
     NTS                       0        0  Conid In Use+Avail: 0+256= 256
     TS                        0        0  VPC conids: 0/256
     Voice                     0        0
     BData A                   0        0  Trunk type is Terrestrial
     BData B                   0        0  Trunk supports cell routing
     CBR                       0        0  Trunk does not use ZCS
     nrt-VBR                   0        0  Trunk end supports all gateway
                                               types
     rt-VBR                    0        0  Gateway conns: 0/200
     ABR                       0        0  Traffic: V TS NTS FR FST CBR
     NRT-VBR ABR RT-VBR
     Total In Use              0        0           
     Reserved               1000     1000
     Available            352207   352207
     Total Capacity       353207   353207
    
    Last Command: dspload 16.1.1
    

Voice

The following sections describe the basics of IGX voice cards and the configuration of several types of typical setups:

To emulate PBXs, we use 3810s with MultiFlex Trunk Modules (MFT) directly connected to the UVM. Standard POTS lines are connected to FXS ports on the 3810.

UVM Card Overview

The dual-purpose UVM provides both voice services and circuit data services. As a high-performance voice module, it is typically connected to PBX or voice switches. UVM fully interworks with CVM modules, with or without echo cancellation. The UVM contains the following features:

  • Two T1/E1/J1 interfaces per module

  • 64 kbps pulse code modulation (PCM) encoding

  • Adaptive differential pulse code modulation (ADPCM) compression:

    • 32 kbps G.721, 32 channels per card

    • 24 kbps G.723, 32 channels per card

    • 16 kbps G.726, 32 channels per card

  • 16 kbps Low Delay-Code Excited Linear Prediction (LD-CELP) compression, G.728, 16 channels per card

  • Conjugate Structure-Algebraic Code Excited Linear Protection (CS-ACELP) compression:

    • 8 kbps G.729, 16 channels per card

    • 8 kbps G.729A, 32 channels per card

  • Per-channel selectable voice compression

  • D-channel compression

  • Voice Activity Detection (VAD)

  • Integrated echo cancellation

  • Programmable voice circuit gain of between –8 dB and +6 dB

  • A-law and -law conversion

  • Fax relay and modem detection

  • Voice switching capability in conjunction with Virtual Network Switching (VNS)

  • 1:1 redundancy via Y cable

The UVM contains the following limitations:

  • A total 16 DSPs per UVM card

  • One codec image can exist on a DSP at one time

  • Six image types:

    • Basic voice image, which contains the following—p, v, a32, c32, a24, c24, l16, l16v

    • g729r8/V

    • g729ar8/V

    • Nx64

    • Fax Relay

    • td (compressed data channel)

UVM packet rates and types are described in the following table:

Note: Signaling packets on voice channels are time stamped packets.

Codec Type Rate FastPacket Type FastPacket Rate (packets/sec)
P (PCM) 64K NTS (Non Timestamped) 381
V (Voice) 64K Voice 381
A32 (ADPCM 32 non-VAD) 32K NTS 191
C32 (ADPCM 32 with VAD) 32K Voice 191
A24 (ADPCM 24 non-VAD) 24K NTS 143
C24 (ADPCM 24 with VAD) 24K Voice 143
L16 (LD-CELP 16 non-VAD) 16K NTS 100
L16v (LD-CELP 16 with VAD) 16K Voice 100
G729r8 8K NTS 50
G729r8V 8K Voice 50
G729ar8 8K NTS 50
G729ar8v 8K Voice 50
32K transient (modem) 32K NTS 191
64K transient (mode) 64K NTS 381
Fax Relay (transient) –9.6K NTS 58 average (not CBR)
1x64 (8/8) 64K NTS 381
1x64 (7/8) 64K NTS 435
8x64 (8/8) 8x64K NTS 3048
8x64 (7/8) 8x64K NTS 3483

3 bit packet types:

  • 010—Voice (VAD)

  • 110—NTS

  • 111—Time stamped

  • 100—Special packet type for idle code suppression on Nx64 type connections

T1 to T1 CAS Example

This section contains a T1 to T1 channel associated signaling (CAS) example. The following illustration shows the connections for this example:

image010a.gif

  1. Use the upln command to bring up the UVM lines.

    Using the upln Command
    IGX-A    TN   Cisco     IGX 8420  9.3.45    June 24 2003 08:42 GMT 
    
    LN   4.1 Config       T1/24                 UVM slot:4                         
    Loop clock:           No                 
    Line framing:         D4                
    Line coding:          ZCS               
    Line encoding:        u-LAW              
    Line T1 signaling:   ABAB               
    Line cable type:      ABAM               
    Line length:          0-133 ft.          
    Line 56KBS Bit Pos:   msb                
    Line pct fast modem:  20                 
    Line cnfg:            External        
    Line cnf slot.line:   --
    Line CAS-Switching:   Off                
    Line SVC-Caching:     Off
    
    Last Command: upln 4.1
    

  2. Use the cnfln command to configure line 4.1 with the following parameters:

    • Extended Superframe Format (ESF)

    • Bipolar 8 Zero Substitution (B8ZS)

    • -law

    Note: These parameters must match those on the attached device (PBX). These configurations are only an example.

    Using the cnfln Command
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 08:42 GMT 
    
    LN   4.1 Config       T1/24                 UVM slot:4                         
    Loop clock:           No                 
    Line framing:         ESF                
    Line coding:          B8ZS               
    Line encoding:        u-LAW              
    Line T1 signaling:   ABAB               
    Line cable type:      ABAM               
    Line length:          0-133 ft.          
    Line 56KBS Bit Pos:   msb                
    Line pct fast modem:  20                 
    Line cnfg:            External        
    Line cnf slot.line:   --
    Line CAS-Switching:   Off                
    Line SVC-Caching:     Off
    
    Last Command: cnfln 4.1 N ESF B8ZS U-LAW ABAB 4 msb 20 N
    

  3. Use the addcon command to add voice connections using your choice of compression; your commands should be similar to the following:

    • addcon 4.1.1-16 IGX-B 7.1.1-16 c32

    • addcon 4.1.17-24 IGX-B 7.1.17-24 c32

    Note: You can not use a compression type that uses a full DSP per channel (l16/v, g729r8v)—because of the limitations listed above (16 DSPs for 24 connections).

    You can use the dspchcnf command and the dspchec command to display your channel configurations:

    Using the dspchcnf Command
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 10:14 GMT 
    
               %   Adaptive          Gain (dB)  Dial   Interface       OnHk Cond
    Channels  Util Voice      Fax    In  Out    Type   Type      A  B  C  D Crit
    4.1.1-16    60  Enabled  Disabled  0   0   Inband  4W E&M      0  X  -  -  a
    4.1.17-24   60  Enabled  Disabled  0   0   Inband  4W E&M      0  X  -  -  a
    
    Last Command: dspchcnf 4.1.1-15
    

    Using the dspchec Command
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 10:15 GMT 
    
               Echo     Echo Return  Tone     Conver-  Non-Linear Voice Bkgrnd
    Channels   Cancel   Loss(.1 dBs) Disabler gence    Processing Tmplt Filter  
    4.1.1-24   Enabled        -      Enabled      -    Enabled     -    Enabled
    4.2.1-24   Disabled       -      Enabled      -    Enabled     -    Enabled
    
    Last Command: dspchec 4.1.1-15
    

The Cisco 3810 router configuration has the following physical setup:

  • 3810-4a, T1 card: phone —> FXS port 1/1 —> MFT T1 —> IGX UVM T1 card

  • 3810-4b, T1 card: phone —> FXS port 1/2 —> MFT T1 —> IGX UVM T1 card

In this example, the RJ11s plug into the FXS ports on the Cisco MC3810, and T1s run directly to the IGX UVM back cards.

To dial from the T1/3810-1a phone:

  1. Dial 8, listen for two beep tones, and then another dial tone (which comes from 3810-4b).

  2. Dial 2222, which rings the other phone.

To dial from the T1/3810-4b phone:

  1. Dial 9, listen for two beep tones, and then another dial tone (which comes from 3810-4a).

  2. Dial 3333, which rings the other phone.

The following shows the Multiflex Trunk (MFT)/voice configurations for the T1 3810-4a router:

3810-4a T1 Router, Showing MFT/Voice Configurations Only
controller T1 0
 framing esf
 linecode b8zs
 mode cas
 voice-group 1 timeslots 1-24 type e&m-immediate-start
!
voice-port 0/1
 define Tx-bits idle 0001
 define Rx-bits idle 0001
 timeouts call-disconnect 0
 operation 4-wire
!
voice-port 0/2
 timeouts call-disconnect 0
 
!
dial-peer voice 1 pots
 destination-pattern 8
 port 0/1
!
dial-peer voice 2 pots
 destination-pattern 3333
 port 1/1
!
end

The following shows the T1 3810-4b router configuration:

3810-4b T1 Router Configuration
controller T1 0
 framing esf
 linecode b8zs
 mode cas
 voice-group 1 timeslots 1-24 type e&m-immediate-start
!
voice-port 0/1
 define Tx-bits idle 0001
 define Rx-bits idle 0001
 timeouts call-disconnect 0
 operation 4-wire
!
dial-peer voice 1 pots
 destination-pattern 9
 port 0/1
!
dial-peer voice 2 pots
 destination-pattern 2222
 port 1/2
!
end

T1 to T1 CCS Example

This section contains a T1 to T1 common channel signaling (CCS) example. The example builds a simple CCS voice connection(s) between two phones, using the CCS signaling type. The following illustration shows the connections for this example:

image012a.gif

  1. Use the upln command to bring up the UVM lines.

  2. Use the cnfln command to configure line 4.1 with the following parameters:

    • Extended Superframe Format (ESF)

    • Bipolar 8 Zero Substitution (B8ZS)

    • -law

  3. Use the addcon command to add voice connections using your choice of compression; your configurations should be similar to the following:

    • addcon 4.1.1-16 IGX-B 7.1.1-16 c32

    • addcon 4.1.17-23 IGX-B 7.1.17-23 c32

    • addcon 4.1.24 IGX-B 7.1.24 t (transparent channel for signaling)

    You can use the dspchcnf command and the dspchec command to display your channel configurations:

    Using the dspchcnf Command
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 10:14 GMT 
    
               %   Adaptive          Gain (dB)  Dial   Interface       OnHk Cond
    Channels  Util Voice      Fax    In  Out    Type   Type      A  B  C  D Crit
    4.1.1-16    60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a
    4.1.17-24   60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a
     
    Last Command: dspchcnf 4.1.1-15
    

    Using the dspchec Command
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 10:15 GMT 
    
               Echo     Echo Return  Tone     Conver-  Non-Linear Voice Bkgrnd
    Channels   Cancel   Loss(.1 dBs) Disabler gence    Processing Tmplt Filter  
    4.1.1-23   Enabled        -      Enabled      -    Enabled     -    Enabled
    4.1.24     Disabled       -      Enabled      -    Enabled     -    Enabled
    4.2.1-24   Disabled       -      Enabled      -    Enabled     -    Enabled
    
    Last Command: dspchec 4.1.1-15
    

T1 to E1 CAS Example

This example builds a simple channel associated signaling (CAS) voice connection(s) between two phones. One side uses a T1 and the other side uses an E1 circuit. This example demonstrates how to perform a T1 to E1 conversion using IGX voice modules. The following illustration shows the connections for this example:

image014a.gif

  1. Use the upln command to bring up the UVM lines.

  2. Use the cnfln command to configure the T1 line 4.1 with the following parameters:

    • Extended Superframe Format (ESF)

    • Bipolar 8 Zero Substitution (B8ZS)

  3. Use the cnfln command to configure the E1 line 7.1 with High Density Bipolar 3 (HDB3) coding.

    You can display your configurations using the dsplncnf command for the T1 and E1 lines:

    Using the dsplncnf Command for T1 Display
    IGX-A      TN     Cisco     IGX 8420  9.3.45   June 24 2003 08:42 GMT
    
    LN 4.1 Config T1/24 UVM slot:4 
    Loop clock: No Line framing: ESF 
    Line coding: B8ZS
    Line encoding: u-LAW 
    Line T1 signaling: ABAB
    Line cable type: ABAM 
    Line length: 0-133 ft. 
    Line 56KBS Bit Pos: msb 
    Line pct fast modem: 20 
    Line cnfg: External 
    Line cnf slot.line: -- 
    Line CAS-Switching: Off 
    Line SVC-Caching: Off
     
    Last Command: dsplncnf 4.1
    

    Using the dsplncnf Command for E1 Display
    IGX-B      TN     Cisco     IGX 8420   9.3.45  June 24 2003 08:42 GMT
    
    Line 7.1 Config E1/30 UVM slot:7
    LN 7.1 Config E1/30 UVM slot:7
    Loop clock: No
    Line framing: On
    Line coding: HDB3
    Line CRC: No
    Line recv impedance: 75 ohm + gnd
    Line E1/J1 signal: CAS
    Line encoding: A-LAW
    Line 56KBS Bit Pos: msb
    Line pct fast modem: 20
    Line cnfg: Passing
    Line cnf slot.line: 8.1
    Line CAS-Switching: Off
    Line SVC-Caching: Off
     
    Last Command: dsplncnf 7.1
    

  4. Use the addcon command to add voice connections using your choice of compression; your commands should be similar to the following:

    • addcon 4.1.1-16 IGX-B 7.1.1-15 c32

    • addcon 4.1.1-17 IGX-B 7.1.1.17-25 c32

    Note: We skipped DS0 number 16, which is used for E1 signaling.

    You can use the dspchcnf command to display your T1 and E1 channel configurations:

    Using the dspchcnf Command for T1 Display
    IGX-A       TN    Cisco       IGX 8420  9.3.45    June 24 2003 11:14 GMT 
    
               %   Adaptive          Gain (dB)  Dial   Interface       OnHk Cond
    Channels  Util Voice      Fax    In  Out    Type   Type      A  B  C  D Crit
    4.1.1-16    60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a
    4.1.17-24   60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a 
    
    Last Command: dspchcnf 4.1.1-15
    

    Using the dspchcnf Command for E1 Display
    IGX-B       TN    Cisco       IGX 8420  9.3.45    June 24 2003 11:14 GMT 
               %   Adaptive          Gain (dB)  Dial   Interface       OnHk Cond
    Channels  Util Voice      Fax    In  Out    Type   Type      A  B  C  D Crit
    7.1.1-15    60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a
    7.1.17-31   60  Disabled  Disabled  0   0   Inband  4W E&M     0  X  -  -  a 
    
    Last Command: dspchcnf 4.1.1-15
    

Basic Voice Troubleshooting

This section describes basic troubleshooting techniques for the following voice issues:

  • Clocking

  • Clipping

  • Background noise

  • Echo

  • Delay

Clocking

The usual clocking condition to the PBX is normal, which implies that the UVM monitors the transmit data and expects the receive data frequency to match. This means that the UVM is providing clocking to the PBX and the PBX is using the receive timing to clock transmit data out to the UVM. Use the cnfln command to configure a loop clock, not on the IGX 8400 and PBX. If the PBX is connected to a digital ISDN service or a Building Integrated Timing Supply (BITS) clock, then it is acquiring a clocking reference from another source. In this case, declare the PBX to be a clocking source to IGX using the cnfclksrc command. If the PBX is not connected to ISDN, BITS, or another known clock source, do not declare it as a clock source.

Complete the following steps to ensure that the PBX clocking is consistent with the configuration:

  1. Use the dsplnerrs command to ensure the clocking is not causing frame slips. The cnfln command may be required to adjust the clock configuration to Loop or Local.

  2. Verify that the PBX is not detecting frame slips.

  3. Use the cnflnalm command to make the alarm of both circuit line and trunk more sensitive so the operator is made aware of any problems.

Clipping

If speech syllables are getting clipped, especially at the beginning of a spoken sentence, use the cnfuvmchparm command to lower the VAD threshold from –40 dBm (default) to –50 dBm or –60 dBm. With a lower VAD threshold, the cnfchutl should be increased to 60% or 70%.

If clipping occurs during busy hour (trunk congestion), check for packet drops on the trunk. Verify that channel utilization is correctly configured. If the number of VAD voice channels sharing a common trunk bandwidth is small (for example, 24 or less), the peak voice bandwidth utilization may often exceed the allocated trunk bandwidth. This situation is more likely to occur on a subrate trunk. To resolve the problem, increase the channel utilization and trunk bandwidth.

Background Noise

If the noise level during silent periods seems too high, use the cnfuvmchparm command to lower the noise injection level to –70 dBm or –80 dBm. If there is adequate noise being generated by the external equipment (such as channel bank), the noise injection may be set to –100 dBm.

Echo

A critical parameter in echo cancellation performance is the echo return loss (ERL) as seen by the UVM:

ERL seen by UVM = 4w/2w hybrid ERL + loss in the external equipment.

If echo remains for a few seconds at the beginning of a conversation, it is usually caused by slow convergence of echo canceller on calls with low ERL (6 to 10 dB as seen by the UVM card). Decrease the upper convergence speed threshold (UCST) value using the cnfuvmchparm command (parameter 8). Lowering the UCST (to 12 dB, for example) would reduce initial echo, but may cause a slight echo/distortion during double talk, especially if the talker levels on the two ends are very different.

If echo cancellation does not converge because of very poor ERL (less than 5 dB), use the cnfuvmchparm command to configure the double talk detection threshold (DTDT) value (parameter 9). You should set the DTDT to approximately 1 dB lower than the circuit ERL seen by the UVM card.

If echo or distortion/static is heard during double talk, it may be the opposite of ERL problem above. Echo cancellation may be diverging during low level double talk. Increase the UCST one notch (for example, by 6 dB).

If residual echo is heard with a large network delay, use the cnfchec command to verify that non-linear processing is enabled.

Delay

Delay is the amount of time it takes for one party's speech to reach the other party's ear. Packet networks tend to have somewhat greater delay than TDM based networks. Also some compressions contribute greater delay than others. As a rule, the higher the compression ratio (or lower the bandwidth used per voice connection) the greater the incremental delay. For example, g729r8 has greater delay than L16, which in turn has greater delay than a32. Studies have shown that one-way delay up to 150 msec is generally imperceptible in a normal conversation.

Refer to Voice Parameters and Tuning Guide for the IGX 8400, VISM, 3810, FastPAD, and VNS for more information on voice tuning and configuration.

Data Connections

This section describes the capabilities of the IGX switch LDM and HDM cards, and contains the following sections:

The following serial ports are supported on HDM/LDM cards:

  • Data communications equipment (DCE)

  • Data terminal equipment (DTE)

The following table describes the available interfaces on the LDM and HDM cards:

Interface Description
EIA/TIA-232 Formerly RS-232
V.35 Standard V.35 interface
EIA/TIA-449/X.21 Formerly RS-449
DDS Digital Data Service

Refer to the following for more card details and specifications:

Data Port Clocking Modes

The DCE is generally responsible for clocking the data. The clocking between two devices can be configured in one of two ways:

  • Normal mode—The DCE provides both the transmit and the receive clock. The DCE is the clock master and the DTE is the clock slave.

  • Looped—The DCE provides only the receive clock, and the DTE provides the transmit clock. In most cases, one of the devices is locking onto the clock from the other end and is recreating it as its own clock signal.

The following illustration shows the data port clocking modes:

image016.gif

Use the cnfdclk command to configure the data port clock mode.

Interface Control Templates

Interface control templates (ICTs) are used to define the outbound control leads on a data channel based on the current state of the associated connection. The ICT provides option end-to-end control lead continuity by manipulating output control leads. Use the cnfict command to modify ICTs. following table lists the available ICT templates and their corresponding statuses:

Condition Connection Status
Active OK
Conditioned Failed or down
Looped A software configured loop is in progress
Near A near external modem loop is in progress
Far A far external modem loop is in progress

Control lead options for ICTs are listed below:

  • Follow a local input or output lead

  • Follow a remote input or output lead

  • Stay high

  • Stay low

V.35 HDLC Data Connection Lab

This example describes how to configure the HDM card to build and pass data. The following illustration shows the connections for this lab:

image018a.gif

  1. Connect cables to the V.35 ports. Ensure that you verify the DTE/DCE sides.

    Note: Routers typically are the DTE. The IGX is is the DCE.

  2. Use the addcon command to add the data connection from the IGX-A side:

    addcon 11.1 IGX-B 3.1 256 8/8
    

    This step adds a 256K data connection between the HDMs using 8/8 encoding.

  3. Use the cnfdclk command to configure the clocking mode—in this lab, we use the normal mode:

    Using the cnfdclk Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 8 2003  23:36 EST 
    
    Data Channel:      11.1
    Interface:         V35   DCE
    Clocking:          Normal
    
                Interface Control Template for Connection while ACTIVE
     Lead    Output Value                   Lead    Output Value                  
     RI  (J) OFF                            DSR (E) ON
     CTS (D) ON                             TM  (K) OFF
     DCD (F) ON                            
    
    Last Command: cnfdclk 11.1 normal
    

    Using the cnfdclk Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 8 2003  23:37 EST 
    
    Data Channel:      3.3
    Interface:         V35   DCE
    Clocking:          Normal
    
                Interface Control Template for Connection while ACTIVE
     Lead    Output Value                   Lead    Output Value                  
     RI  (J) OFF                            DSR (E) ON
     CTS (D) ON                             TM  (K) OFF
     DCD (F) ON                            
    
    Last Command: cnfdclk 3.3 normal
    

  4. Use the dspbob command to verify the Break-out Box (BOB) lead settings:

    Using the dspbob Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 8 2003  23:39 EST 
    
    Port:           11.1
    Interface:      V35   DCE
    Clocking:       Normal       (255999 Baud)
    
          Inputs from User Equipment          Outputs to User Equipment
     Lead  Pin  State   Lead  Pin  State   Lead  Pin  State  Lead Pin State 
     RTS   C    On                         CTS   D    On
     DTR   H    On                         DSR   E    On
     TxD   P/S  Active                     DCD   F    On
     TT    U/W  Unused                     RI    J    Off
                                           TM    K    Off
                                           RxD   R/T  Active
                                           RxC   V/X  Active
                                           TxC   Y/a  Active
    
    This Command: dspbob 11.1
    

    Using the dspbob Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 8 2003  23:41 EST 
    
    Port:           3.3
    Interface:      V35   DCE
    Clocking:       Normal       (255999 Baud)
    
          Inputs from User Equipment          Outputs to User Equipment
     Lead  Pin  State   Lead  Pin  State   Lead  Pin  State  Lead Pin State 
     RTS   C    On                         CTS   D    On
     DTR   H    On                         DSR   E    On
     TxD   P/S  Active                     DCD   F    On
     TT    U/W  Unused                     RI    J    Off
                                           TM    K    Off
                                           RxD   R/T  Active
                                           RxC   V/X  Active
                                           TxC   Y/a  Active
    
    This Command: dspbob 3.3
    

  5. Use the ping command to test IP connectivity based on the following router configurations:

    wsw-3810-7d# ping 100.1.1.1
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 100.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/33/37 ms
    wsw-3810-7d# 
    
    wsw-3810-7a# ping 100.1.1.2
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 100.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/33/36 ms
    wsw-3810-7a#

3810-7d router configuration:

!
interface Serial1
 ip address 100.1.1.2 255.255.255.0
!

3810-7a router configuration:

!
interface Serial0
 ip address 100.1.1.1 255.255.255.0
 no ip directed-broadcast
 no ip mroute-cache
 no fair-queue
!

You can verify that the serial interfaces are up by using the show interface command, and looking for up/up, and the lead statuses at the bottom of the output. The router is the DTE, and when configured properly, you should see all the lead statuses as UP.

wsw-3810-7a# sh int s1
Serial1 is up, line protocol is up
  Hardware is PQUICC Serial
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation HDLC, crc 16, loopback not set
  Keepalive set (10 sec)
  Scramble enabled 
  Last input 00:00:03, output 00:00:16, output hang never
  Last clearing of "show interface" counters 1d03h
  Input queue: 0/75/0 (size/max/drops); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/1000/64/0 (size/max total/threshold/drops) 
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort
     66 packets output, 858 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Cable attached: V.35 (DTE)
  Hardware config: V.35; DTE; DSR= UP DTR= UP RTS= UP CTS= UPD CD= UP  

wsw-3810-7d# sh int s0
Serial0 is up, line protocol is up 
  Hardware is PQUICC Serial
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation HDLC, crc 16, loopback not set
  Keepalive set (10 sec)
  Scramble enabled 
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 1d23h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops) 
     Conversations  0/0/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Cable attached: V.35 (DTE)
  Hardware config: V.35; DTE; DSR= UP DTR= UP RTS= UP CTS= UP DCD= UP

Data Connection Troubleshooting

Complete the following steps for data connection troubleshooting assistance:

  1. Use the dspcon command to verify the connection status. Is connection down or failed?

    Using the dspcon Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    July 9 2003  00:10 EST 
    
    Conn:  11.1              IGX-B    3.3       256 8/8  
    Status:OK  
    
    ! --- Connection is okay.
    
    
    
    Ownr:LOCAL Restr:NONE COS:0  Compr:NONE
    Path:   IGX-A16.1--13.1IGX-B
    Pref:   Not Configured
    
    IGX-A  HDM:   OK                    IGX-B  HDM:   OK
              SDI:   OK                              SDI:   OK
              Clock: OK                              Clock: OK
    
    Last Command: dspcon 11.1
    

  2. Use the dspchcnf command to verify channel configuration. Ensure parameters match on both sides of the connection.

    Using the dspchcnf Command
    IGX-B       TN    Cisco     IGX 8420  9.3.45    July 8 2003  23:42 EST 
    
                Maximum EIA     %      DFM Pattern     DFM     Idle Code   PreAge
    Channels    Update Rate    Util      Length       Status     Suppr     (usec)  
    3.3-4             2        100         8         Enabled      -             0
    
    Last Command: dspchcnf 3.3
    

    Using the dspchcnf Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 8 2003  23:43 EST 
    
                Maximum EIA     %      DFM Pattern     DFM     Idle Code   PreAge
    Channels    Update Rate    Util      Length       Status     Suppr     (usec)  
    11.1-4            2        100         8         Enabled      -             0
    
    Last Command: dspchcnf 11.1
    

  3. Use the dspbob command to verify the following lead status elements:

    • Ensure no leads are down or inhibited.

    • Verify correct interface types (DTE or DCE).

    • Verify correct clocking configuration.

    Using the dspbob Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    July 9 2003  00:15 EST 
    
    Port:           11.1
    Interface:      V35   DCE
    Clocking:       Normal       (255999 Baud)
    
          Inputs from User Equipment          Outputs to User Equipment
     Lead  Pin  State   Lead  Pin  State  Lead  Pin  State  Lead  Pin State 
     RTS   C    On                         CTS   D    On
     DTR   H    On                         DSR   E    On
     TxD   P/S  Active                     DCD   F    On
     TT    U/W  Unused                     RI    J    Off
                                           TM    K    Off
                                           RxD   R/T  Active
                                           RxC   V/X  Active
                                           TxC   Y/a  Active
    
    This Command: dspbob 11.1
    

  4. Refer to V.35/RS449 Cable Length Recommendations to verify proper cabling and cable lengths are in effect.

  5. Use the dspcurclk command on each endpoint to find the network clock source for the endpoint to investigate the possibility of periodic bursts. When HDM or LDM circuits suffer from periodic bursts of errors, node synchronization may be the issue. If the clocks are not synchronized, such bursts of errors are expected.

Frame Relay

This section describes the Frame Relay capabilities for the various frame relay based cards in the IGX, and contains these sections:

This document uses the UFM-U card in the lab setups. Refer to the following for more Frame Relay card information:

The following illustration shows the UFM-U and UFM-C card lines, ports and connection devices:

image020.gif

Frame Relay ports are provided on UFM/UFM-U cards. There are two types of Frame Relay ports:

  • Physical—Frame Relay ports on UFM-U/FRM cards with V.35 or X.21 interfaces.

  • Logical—Frame Relay ports on UFM/FRM cards with T1 or E1 interfaces. Use the addport command to create logical ports.

Virtual Circuit Port Queuing

The following illustration shows VC port queueing:

image021.gif

You need to be aware of the following important port queuing tips:

  • The outbound frames pass through the port queues only.

  • The inbound frames pass through the VC queues only.

  • Port queues are in the egress direction—toward customer premises equipment (CPE).

  • The port queue provides traffic management from multiple virtual circuits on a single physical interface.

  • You can configure the following port queue parameters with the cnfport command:

    • Queue Depth—Determines the total number of bytes that are buffered by this port.

    • Discard Eligibility (DE) Threshold—Determines whether DE frames are dropped.

    • Explicit Congestion Notification (ECN) Threshold—Determines whether frames are marked with Forward Explicit Congestion Notification (FECN) or Backward Explicit Congestion Notification (BECN).

Frame Relay Data Link Connection Identifiers

Each PVC between frame relay devices is locally assigned a data link connection identifier (DLCI) to differentiate between PVC termination on the same port.

You should be aware of the following when you assign a DLCI to a connection:

  • DLCIs are locally significant, except if you are using a global addressing scheme

  • DLCIs from 16 to 1007 are available for user services

  • Reserved DLCIs (0 to 15 and 1008 to 1023) are used for signaling protocols or other management functions

  • The maximum number of Frame Relay connections on a UFM is 1000

Locally significant DLCIs are generally used when provisioning Frame Relay PVCs. With locally significant DLCIs, the DLCI number is the local PVC identifier between the CPE and the switch. The DLCI number is not unique throughout the entire Frame Relay cloud (assuming more than one switch is being used to route the PVC).

Using a global addressing scheme, a unique identification number is assigned to each port in the network. Subsequently, PVCs are added with DLCIs chosen based on the port ID at each end. The DLCI assigned to each end of the PVC is made equal to the port ID of the port at the other end of the PVC. This numbering convention has the advantage that all frames submitted to the network with a given DLCI are delivered to the same port, regardless of their source.

Frame Relay Signaling

It is desirable to have some intelligent signaling protocol between the devices at either end of a frame relay link as the Local Management Interface (LMI). Signaling is used for the following purposes:

  • Status information to ensure the correct operation of each device.

  • Status information to ensure the correct operation of the link between the devices.

  • Administrative information such as the addition, deletion, or failure of one or more PVCs.

  • Flow control information to regulate the flow of traffic between devices to prevent or react to congestion.

The following signaling protocols are widely used:

  • Cisco/StrataCom—Uses DLCI 1023, UNI only.

  • ITU Q.933, Annex A—Uses DLCI 0, NNI or UNI.

  • ANSI T1.617, Annex D—Usess DLCI 0, NNI or UNI.

Note: The original LMI differs from ANSI to ITU-T in two ways:

  • The number of connections for LMI is limited to 992. ANSI and ITU-T are limited to 976.

  • LMI uses DLCI 1023. ANSI and ITU-T use DLCI 0.

UNI applications apply signaling conventions on a local interface between the user equipment and the network. The signaling is strictly unidirectional—only one device may request information from the other. The DTE (CPE side) is usually the interface, which performs all the status requests with the network side responding to the requests.

image023.gif

NNI is a bidirectional signaling protocol, typically used between different network providers. Using NNI enables control information and traffic to pass at the border of two networks (Provider A and B). Both networks send status inquiry frames, and both networks respond with short or long response frames.

image025.gif

Universal Frame Relay Module Mode Configuration

When configuring ATM-to-Frame Relay service interworking (SIW)/network interworking (NIW) connections, Frame Relay connections can take the transparent and translational modes.

In transparent mode, the Frame Relay header is stripped off and the data is sent transparently to the network as FastPackets. These FastPackets are usually encapsulated within ATM cells when traversing an ATM. This type of connection is used when the encapsulation method is compatible between the terminal equipment only.

In translational mode, the method for carrying multiple upper layer user protocols over a Frame Relay PVC is the RFC 1490 standard, and the method for carrying multiple upper layer user protocols over a Frame Relay ATM PVC is the RFC 1483 standard. The interworking function performs mapping between the two encapsulations, which supports the interworking of routed and bridged protocols.

Frame Relay Labs

This section provides basic lab setups, which demonstrate the Frame Relay information described in this document. The labs are based on UFM and UFMU cards, and the following connection types are demonstrated:

Lab 1: Frame Relay to Frame Relay via UNI

Setup a Frame Relay to Frame Relay connection using the following parameters:

  • DLCI = 100 (both sides)

  • Maximum Information Rate (MIR) = 1024

  • No Foresight

  • Cisco LMI signaling

  • UNI connection

The following illustration shows the topology for this lab:

image027a.gif

    Complete the following steps for IGX-A port configuration:

  1. Use the upport 13.1 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Cisco LMI type

    • DCE interface type

    cnfport 13.1 DCE 1536 NORMAL 0 65535 65535 100 s N 15 3 4 N 75 25 3 N N Y 1 N
    
  3. Use the dspport 13.1 command to display your configuration:

    Using the dspport Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:40 EST 
    
    Port:       13.1              [ACTIVE  ]
    Interface:  V35     DCE                   Configured Clock:   1536 Kbps
    Clocking:   Normal                        Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0                  Neighbor IfIndex: 0
    Port ID                        0          Min Flags / Frames           1
    Port Queue Depth           65535          OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535          T391 Link Intg Timer        10 sec
    DE Threshold                 100 %        N391 Full Status Poll        6 cyl
    Signalling Protocol    Cisco LMI          EFCI Mapping Enabled        No
    Asynchronous Status           No          CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15          IDE to DE Mapping          Yes
    N392 Error Threshold           3          Interface Control Template
    N393 Monitored Events Count    4            Lead    CTS    DSR    DCD
    Communicate Priority          No            State   ON     ON     ON
    Upper/Lower RNR Thresh  75%/ 25%          Advertise Intf Info    Disable
    
    Last Command: dspport 13.1
    

Complete the following steps for IGX-B port configuration:

  1. Use the upport 6.1 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Cisco LMI type

    • DCE interface type

    cnfport 6.1 DCE 1536 NORMAL 0 65535 65535 100 s N 15 3 4 N 75 25 3 N N Y 1 N
    
  3. Use the dspport command to display your configuration:

    Using the dspport Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:40 EST 
    
    Port:       6.1               [ACTIVE  ]
    Interface:  V35     DCE             Configured Clock:   1536 Kbps
    Clocking:   Normal                  Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0            Neighbor IfIndex: 0
    Port ID                        0    Min Flags / Frames           1
    Port Queue Depth           65535    OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535    T391 Link Intg Timer        10 sec
    DE Threshold                 100 %  N391 Full Status Poll        6 cyl
    Signalling Protocol    Cisco LMI    EFCI Mapping Enabled        No
    Asynchronous Status           No    CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15    IDE to DE Mapping          Yes
    N392 Error Threshold           3    Interface Control Template
    N393 Monitored Events Count    4       Lead    CTS    DSR    DCD
    Communicate Priority          No       State   ON     ON     ON
    Upper/Lower RNR Thresh  75%/ 25%       Advertise Intf Info    Disable
    
    Last Command: dspport 6.1
    

Complete the following steps to build the Frame Relay PVC:

  1. Use the addcon command on the IGX-A side:

    addcon 13.1.100 IGX-B 6.1.100 10
    

    Note: 10 = Predefined Frame Relay class.

  2. Use the dspcon command to display your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco    IGX 8420  9.3.45 July 20 2003 16:41 EST 
    
    Conn:  13.1.100          IGX-B    6.1.100            fr       Status:OK
    MIR        CIR       VC Q Depth    PIR        Cmax   ECN QThresh     QIR    
    1024/1024 1024/1024  65535/65535  1536/1536   10/10  65535/65535  1024/1024
    
    Ownr:LOCAL Restr:NONE COS:0                  FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
    
    IGX-A  UFMU:   OK                   IGX-B  UFMU:   OK
              UFI:   OK                              UFI:   OK
    
    Last Command: dspcon 13.1.100
    

    Note: You only need to issue the addcon command on one side.

  3. Use the dspcon command on the other side to display your configuration:

    Using the dspcon Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:41 EST 
    
    Conn:  6.1.100           IGX-A    13.1.100           fr       Status:OK
    MIR          CIR       VC Q Depth     PIR     Cmax   ECN QThresh     QIR    
    1024/1024   1024/1024  65535/65535  1536/1536 10/10  65535/65535  1024/1024
    
    Ownr:REMOTE Restr:NONE COS:0                  FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
    
    IGX-B  UFMU:   OK                   IGX-A  UFMU:   OK
              UFI:   OK                              UFI:   OK
    
    Last Command: dspcon 6.1.100
    

  4. Perform the following router configurations:

    Router configuration for 3810-7b:

    !
    interface Serial0
     no ip address
     encapsulation frame-relay IETF
     no ip mroute-cache
     no fair-queue
     clockrate line 1536000
     frame-relay lmi-type cisco
    !         
    interface Serial0.100 point-to-point
     ip address 2.2.2.1 255.255.255.0
     frame-relay interface-dlci 100   
    !

    Router configuration for 3810-7d:

    !
    interface Serial0
     no ip address
     encapsulation frame-relay IETF
     no ip mroute-cache
     clockrate line 1536000
     frame-relay lmi-type cisco
    !
    interface Serial0.100 point-to-point
     ip address 2.2.2.2 255.255.255.0
     frame-relay interface-dlci 100   
    !
  5. Perform the following ping command tests:

    Ping test for 2.2.2.2:

    wsw-3810-7b# ping 2.2.2.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms
    wsw-3810-7b# ping 2.2.2.2 
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/12 ms

    Ping test for 2.2.2.1:

    wsw-3810-7d# ping 2.2.2.1 
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 2.2.2.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms
    wsw-3810-7d# ping 2.2.2.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 2.2.2.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms
  6. Perform the following verifying operations:

    You can use the dspchstats and dspportstats commands to verify your configurations for this lab:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:44 EST 
    
    Channel Statistics: 13.1.100      Cleared: July 20 2003 16:43   (/)
    MIR: 1024/1024 kbps     Collection Time: 0 day(s) 00:00:26      Corrupted: NO
                         Frames   Avg Size Avg    Util   Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               15    106      0    0
    To Network:              15    106      0    0         90         3
    Discarded:                0      0      0    0
    From Network:            15    106      0    0         90         3
    To Port:                 15    106      0    0
    Discarded:                0      0      0    0          0         0
    ECN Stats:  Avg Rx VC Q:             0    ForeSight RTD    --
    Min-Pk bytes rcvd: --  FECN Fram     0    FECN Ratio (%)    0
    Minutes Congested: --  BECN Frames:  0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:0   Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:0   Bytes xmtd in excess of CIR:         0
    
    This Command: dspchstats 13.1.100 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:44 EST 
    
    Channel Statistics: 6.1.100       Cleared: July 20 2003 16:44   (/)
    MIR: 1024/1024 kbps     Collection Time: 0 day(s) 00:02:49      Corrupted: NO
                         Frames   Avg Size Avg    Util   Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               37    117      0    0
    To Network:              37    117      0    0       244         1
    Discarded:                0      0      0    0
    From Network:            37    117      0    0       244         1
    To Port:                 37    117      0    0
    Discarded:                0      0      0    0         0         0
    RTD    --
    Min-Pk bytes rcvd: --   FECN Frames: 0    FECN Ratio (%)    0
    Minutes Congested: --   BECN Frames: 0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR: 0  Bytes rcvd in excess of CIR: 0
    Frames xmtd in excess of CIR: 0  Bytes xmtd in excess of CIR: 0
    
    This Command: dspchstats 6.1.100 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:44 EST 
    
    Port Statistics for 13.1        Cleared: July 20 2003 16:43
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:43      Corrupted: NO
    Sig Protocol: Cisco LMI
                          Bytes  Average (kbps)     Util (%)         Frames
    From Port:            10502       0               0                 84
    To Port:               7492       0               0                 74
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd   28   Avg Tx Port Q       0
    Invalid Alignment      0   Status Xmit       28   FECN Frames         0
    Invalid Frm Length     0   Asynch Xmit        0   Ratio (%)           0
    Invalid Frm Format     0   Seq # Mismatches   0   BECN Frames         0
    Unknown DLCIs          0   Timeouts           0   Ratio (%)           0
    Last Unknown DLCI      0   Invalid Req        0   Rsrc Overflow       0
                                                      DE Frms Dropd       0
    
    This Command: dspportstats 13.1 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:44 EST 
    
    Port Statistics for 13.1        Cleared: July 20 2003 16:43
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:50      Corrupted: NO
    Sig Protocol: Cisco LMI
                          Bytes    Average (kbps)     Util (%)         Frames
    From Port:            10517        0               0                 85
    To Port:               7507        0               0                 75
    LMI Receive Protocol Stats LMI Transmit Protocol Stats  CLLM (ForeSight) Stats 
    Status Enq Rcvd         29 Status Enq Xmit  --   Frames Rcvd       --
    Status Xmt              29 Status Rcd       --   Bytes Rcvd        --
    Asynch Xmit              0 Asynch Rcvd      --   Frames Xmt        --
    Seq # Mismatches         0 Seq # Mismatches --   Bytes Xmt         --
    Timeouts                 0 Timeouts         --   CLLM Failures     --
    Invalid Frames           0
    Elmi Ver Req             0 Elmi Ver Rsp             0
    Elmi QOS Req             0 Elmi QOS Rsp             0
                                                                                    
    This Command: dspportstats 13.1 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:45 EST 
    
    Port Statistics for 6.1         Cleared: July 20 2003 16:44
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:10      Corrupted: NO
    Sig Protocol: Cisco LMI
                          Bytes   Average (kbps)     Util (%)         Frames
    From Port:             6621       0               0                 68
    To Port:               6685       0               0                 68
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd    25   Avg Tx Port Q     0
    Invalid Alignment      0   Status Xmit        25   FECN Frames       0
    Invalid Frm Length     0   Asynch Xmit         0   Ratio (%)         0
    Invalid Frm Format     0   Seq # Mismatches    0   BECN Frames       0
    Unknown DLCIs          0   Timeouts            0   Ratio (%)         0
    Last Unknown DLCI      0   Invalid Req         0   Rsrc Overflow     0
                                                       DE Frms Dropd     0
     
    This Command: dspportstats 6.1 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco   IGX 8420  9.3.45    July 20 2003 16:45 EST 
    
    Port Statistics for 6.1         Cleared: July 20 2003 16:44
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:16      Corrupted: NO
    Sig Protocol: Cisco LMI
                          Bytes  Average (kbps)     Util (%)         Frames
    From Port:             6636      0               0                 69
    To Port:               7017      0               0                 70
    LMI Receive Protocol Stats LMI Transmit Protocol Stats  CLLM (ForeSight) Stats 
    Status Enq Rcvd         26 Status Enq Xmit   --  Frames Rcvd       --
    Status Xmt              26 Status Rcd        --  Bytes Rcvd        --
    Asynch Xmit              0 Asynch Rcvd       --  Frames Xmt        --
    Seq # Mismatches         0 Seq # Mismatches  --  Bytes Xmt         --
    Timeouts                 0 Timeouts           -- CLLM Failures     --
    Invalid Frames           0
    Elmi Ver Req             0 Elmi Ver Rsp             0
    Elmi QOS Req             0 Elmi QOS Rsp             0
                                                                                    
    This Command: dspportstats 6.1 1
    

Lab 2: Frame Relay to Frame Relay via NNI

This lab builds a Frame Relay connection over an NNI link between two IGX systems, which emulates two different Frame Relay provider networks.

Note: The connection does not traverse a trunk, and uses only the NNI link to pass traffic.

This lab uses the following parameters:

  • NNI Link established between 2 UFMU ports (13.3-IGX-A and 6.3-IGX-B)

  • NNI signaling will use Annex D NNI

  • DLCI = 300

  • StrataCom LMI signaling on local CPE side(s)

The following illustration shows the topology for this lab:

image029a.gif

    Complete the following steps for IGX-A port configuration:

  1. Use the upport 13.3 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Port signaling type = Annex D NNI

    • Interface type = DCE

    cnfport 13.3 DCE 1536 NORMAL 0 65535 65535 100 d y N 15 3 4 3 10 6 N N Y 1 N
    
  3. Use the dspport command to display your configuration:

    Using the dspport Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:49 EST 
    
    Port:       13.3              [ACTIVE  ]
    Interface:  V35     DCE                      Configured Clock:   1536 Kbps
    Clocking:   Normal                           Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0               Neighbor IfIndex: 0
    Port ID                        0       Min Flags / Frames           1
    Port Queue Depth           65535       OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535       T391 Link Intg Timer        10 sec
    DE Threshold                 100 %     N391 Full Status Poll        6 cyl
    Signalling Protocol  Annex D NNI       EFCI Mapping Enabled        No
    Asynchronous Status           No       CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15       IDE to DE Mapping          Yes
    N392 Error Threshold           3       Interface Control Template
    N393 Monitored Events Count    4          Lead    CTS    DSR    DCD
    Communicate Priority          No          State   ON     ON     ON
                                           Advertise Intf Info    Disable
                                                                                   
    Last Command: dspport 13.3
    

Complete the following steps for IGX-B port configuration:

  1. Use the upport 6.3 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Port signaling type = Annex D NNI

    • Interface type = DTE

    Using the dspport Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:49 EST 
    
    Port:       6.3               [ACTIVE  ]
    Interface:  V35     DTE                      Configured Clock:   1536 Kbps
    Clocking:   Normal                           Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0               Neighbor IfIndex: 0
    Port ID                        0       Min Flags / Frames           1
    Port Queue Depth           65535       OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535       T391 Link Intg Timer        10 sec
    DE Threshold                 100 %     N391 Full Status Poll        6 cyl
    Signalling Protocol  Annex D NNI       EFCI Mapping Enabled        No
    Asynchronous Status           No       CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15       IDE to DE Mapping          Yes
    N392 Error Threshold           3       Interface Control Template
    N393 Monitored Events Count    4          Lead    RTS    DTR
    Communicate Priority          No          State   ON     ON
                                           Advertise Intf Info    Disable
                                                                                    
    Last Command: dspport 6.3
    

    Note: Ports 13.3 and 6.3 are configured for Annex D NNI, with a port speed of 1536Kbps. Port 6.3 is configured as DTE because the DCE-DTE cable connects the two ports together.

Complete the following steps to perform the connection setup:

  1. Use the addcon 13.1.300 IGX-A 13.3.300 5 command on the IGX-A side (13.1.300 —> 13.3.300, NNI side).

  2. Use the dspcon command to display your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:51 EST 
    
    Conn:  13.3.300          IGX-A    13.1.300           fr       Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
       64/64       64/64    65535/65535  1536/1536   10/10  65535/65535    64/64
    
    Pri: L  Test-RTD: 255 msec                             FST: n  % Util: 100/100
    
    Path:   Route information not applicable for local connections
    
    IGX-A  UFMU:   OK                   IGX-A  UFMU:   OK
              UFI:   OK                              UFI:   OK
              NNI:   OK
                                                                                  
    Last Command: dspcon 13.3.300
    

    Note: No path is used—this connection rides a trunk.

  3. Use the addcon 6.1.300 IGX-B 6.3.300 command on the IGX-B side (6.1.300 —> 6.3.300, NNI side).

  4. Use the dspcon command to display your configuration:

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 16:52 EST 
    
    Conn:  6.3.300           IGX-B    6.1.300            fr       Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
       64/64       64/64    65535/65535  1536/1536   10/10  65535/65535    64/64
    
    Pri: L  Test-RTD: 255 msec                             FST: n  % Util: 100/100
    
    Path:   Route information not applicable for local connections
    
    IGX-B  UFMU:   OK                   IGX-B  UFMU:   OK
              UFI:   OK                              UFI:   OK
              NNI:   OK
                                                                                
    Last Command: dspcon 6.3.300
    

  5. Perform the following router configurations.

    Router configuration for 3810-7b:

    interface Serial0.300 point-to-point
     ip address 3.3.3.1 255.255.255.0
     frame-relay interface-dlci 300   
    !

    Router configuration for 3810-7d:

    interface Serial0.300 point-to-point
     ip address 3.3.3.2 255.255.255.0
     frame-relay interface-dlci 300   
    !
  6. Perform the following ping command tests:

    Ping test for 3.3.3.:

    wsw-3810-7b# ping 3.3.3.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 3.3.3.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/46/57 ms
    wsw-3810-7b# ping 3.3.3.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 3.3.3.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 56/56/57 ms

    Ping test for 3.3.3.1:

    wsw-3810-7d# ping 3.3.3.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 3.3.3.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/46/56 ms
    wsw-3810-7d# ping 3.3.3.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 3.3.3.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 52/55/61 ms
  7. Use the dspportstats command to verify the NNI operations:

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:03 EST 
    
    Port Statistics for 13.3        Cleared: July 20 2003 17:02
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 18:05:28      Corrupted: NO
    Sig Protocol: Annex D NNI
                          Bytes      Average (kbps)     Util (%)         Frames
    From Port:               69            0               0                  4
    To Port:                 64            0               0                  4
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd          2   Avg Tx Port Q         0
    Invalid Alignment      0   Status Xmit              2   FECN Frames           0
    Invalid Frm Length     0   Asynch Xmit              0        Ratio (%)        0
    Invalid Frm Format     0   Seq # Mismatches         0   BECN Frames           0
    Unknown DLCIs          0   Timeouts                 0        Ratio (%)        0
    Last Unknown DLCI      0   Invalid Req              0   Rsrc Overflow         0
                                                            DE Frms Dropd         0
                                                                                  
    This Command: dspportstats 13.3 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:03 EST 
    
    Port Statistics for 6.3         Cleared: July 20 2003 17:02
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:44      Corrupted: NO
    Sig Protocol: Annex D NNI
                          Bytes      Average (kbps)     Util (%)         Frames
    From Port:             5151            0               0                 86
    To Port:               4839            0               0                 85
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd         28   Avg Tx Port Q         0
    Invalid Alignment      0   Status Xmit             28   FECN Frames           0
    Invalid Frm Length     0   Asynch Xmit              0        Ratio (%)        0
    Invalid Frm Format     0   Seq # Mismatches         0   BECN Frames           0
    Unknown DLCIs          0   Timeouts                 0        Ratio (%)        0
    Last Unknown DLCI      0   Invalid Req              0   Rsrc Overflow         0
                                                            DE Frms Dropd         0
                                                                                  
    This Command: dspportstats 6.3 1
    

  8. Use the dspchstats command to verify traffic passing:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:06 EST 
    
    Channel Statistics: 13.3.300      Cleared: July 20 2003 17:02   (\)
    MIR: 64/64 kbps         Collection Time: 0 day(s) 00:05:31      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               56        128      0    0
    To Network:              56        128      0    0              402         1
    Discarded:                0          0      0    0
    From Network:            56        128      0    0              402         1
    To Port:                 56        128      0    0
    Discarded:                0          0      0    0                0         0
            ECN Stats:  Avg Rx VC Q:             0    ForeSight RTD    --
    Min-Pk bytes rcvd: --          FECN Frames:  0    FECN Ratio (%)    0
    Minutes Congested: --          BECN Frames:  0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.3.300 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:06 EST 
    
    Channel Statistics: 6.3.300       Cleared: July 20 2003 17:02   (\)
    MIR: 64/64 kbps         Collection Time: 0 day(s) 00:04:42      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               30        141      0    0
    To Network:              30        141      0    0              235         0
    Discarded:                0          0      0    0
    From Network:            30        141      0    0              235         0
    To Port:                 30        141      0    0
    Discarded:                0          0      0    0                0         0
            ECN Stats:  Avg Rx VC Q:            0    ForeSight RTD    --
    Min-Pk bytes rcvd: --       FECN Frames:     0    FECN Ratio (%)    0
    Minutes Congested: --       BECN Frames:     0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 6.3.300 1
    

Lab 3: Frame Relay to ATM using AFTX Mode

This lab builds a service interworking connection of Frame Relay to ATM using translational mode (ATFX).

This lab uses the following parameters:

  • DLCI 400

  • VPI/VCI = 0/100

  • ATM port on 3810 (MFT configured for ATM mode)

  • ATM encapsulation type aal5snap (RFC 1483)

  • Peak cell rate (PCR) = 166cps/64Kbps

The following illustration shows the topology for this lab:

image031a.gif

    Complete the following steps for the Frame Relay side, IGX-A, 13.1 port configuration:

  1. Use the upport 13.1 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Port signaling type = LMI

    • Interface type = DCE

    cnfport 13.1 DCE 1536 NORMAL 0 65535 65535 100 s N 15 3 4 N 75 25 3 N N Y 1 N
    
  3. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:10 EST 
    
    Port:       13.1              [ACTIVE  ]
    Interface:  V35     DCE                      Configured Clock:   1536 Kbps
    Clocking:   Normal                           Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0               Neighbor IfIndex: 0
    Port ID                        0       Min Flags / Frames           1
    Port Queue Depth           65535       OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535       T391 Link Intg Timer        10 sec
    DE Threshold                 100 %     N391 Full Status Poll        6 cyl
    Signalling Protocol    Cisco LMI       EFCI Mapping Enabled        No
    Asynchronous Status           No       CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15       IDE to DE Mapping          Yes
    N392 Error Threshold           3       Interface Control Template
    N393 Monitored Events Count    4          Lead    CTS    DSR    DCD
    Communicate Priority          No          State   ON     ON     ON
    Upper/Lower RNR Thresh  75%/ 25%       Advertise Intf Info    Disable
                                                                                    
    Last Command: dspport 13.1
    

Complete the following steps for the ATM side, IGX-B, 13.4 port configuration:

  1. Use the upln 13.4 command to bring up line 13.4.

  2. Use the upport 13.4 command.

  3. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:10 EST 
    
    Port:       13.4    [ACTIVE  ]
    Interface:          T1-IMA                CAC Override:          Enabled
    Type:               UNI                   %Util Use:             Disabled
    Speed:              3622 (cps)            GW LCNs:               200
    SIG Queue Depth:    640                   Reserved BW:           0 (cps)
    Alloc Bandwidth:    3622 (cps)            VC Shaping:            Disabled
    Protocol:           NONE
                                                                                  
    Last Command: dspport 13.4
    

Complete the following steps to add a connection on the ATM side:

Tip: When adding Frame Relay to ATM based connections, it is easier to add from the ATM side rather than from the Frame Relay side—this allows the switches to automatically calculate the correct MIR/CIR settings for the Frame Relay side.

  1. Use the addcon command:

    addcon 13.4.0.100 IGX-A 13.1.400 atfx 166 100 250000 166 1000 5 1280 35 5
    
  2. Use the dspcon command to verify your configurations:

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:12 EST 
    
    Conn:  13.4.0.100        IGX-A    13.1.400           atfx     Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
        166/166    100/100  250000/250000   y       166/166      1000/1000    5
    
    Ownr:LOCAL Restr:NONE COS:0                            FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
    IGX-B  UXM:   OK                    IGX-A  UFMU:   OK
              Line 13.4 : OK                         UFI:   OK
              OAM Cell RX: Clear
              NNI:   OK
                                                                                   
     Conn:  13.4.0.100        IGX-A    13.1.400           atfx     Status:OK
     
       PCR(0+1)        % Util       CDVT(0+1)            SCR               MBS     
      166/166         100/100     250000/250000       166/166          1000/1000
     
    Policing    VC Qdepth     EFCI         IBS     
        5      1280/1280     35/35        5/5
     
    This Command: dspcon 13.4.0.100
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:13 EST 
    
    Conn:  13.1.400          IGX-B    13.4.0.100         atfx     Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
     63.7/63.7   63.7/63.7  61440/61440  63.7/63.7   10/10  21504/21504  63.7/63.7
     
    Ownr:REMOTE Restr:NONE COS:0                           FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UFMU:   OK                   IGX-B  UXM:   OK
              UFI:   OK                              Line 13.4 : OK
                                                     NNI:   OK
                                                                                    
    Last Command: dspcon 13.1.400
    

Complete the following router configurations:

Router configuration for 3810-7b (Frame Relay side):

!
interface Serial0.400 point-to-point
 ip address 4.4.4.1 255.255.255.0
 frame-relay interface-dlci 400   
!

Router configuration for 3810-7d (ATM side):

!
controller T1 0
 framing esf
 linecode b8zs
 mode atm
!
!
interface ATM0
 no ip address
 ip mroute-cache
 no atm ilmi-keepalive
!
interface ATM0.100 point-to-point
 ip address 4.4.4.2 255.255.255.0
 pvc 0/100 
  cbr 64
  encapsulation aal5snap
 !

Perform the following ping command tests:

Ping test for 4.4.4.2:

wsw-3810-7b# ping 4.4.4.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/32/40 ms
wsw-3810-7b# ping 4.4.4.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/40/40 ms

Ping test for 4.4.4.1:

wsw-3810-7d# ping 4.4.4.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/40/44 ms
wsw-3810-7d# ping 4.4.4.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/45/60 ms

Complete the following steps to verify traffic passing on the PVC.

  1. Use the dspchstats command to verify traffic passing on the ATM PVC:

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:15 EST 
    
    Channel Statistics: 13.4.0.100
    Collection Time: 0 day(s) 00:00:35                   Clrd:  07/20/02 17:15:09
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       60   From port              1
    Cells Tx to Network                            60   To network             1
    Cells Rcvd from Network                        67   From network           1
    Cells Transmitted to Port                      67   To port                1
    EOF Cells Rcvd from Port                       20
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      60
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.4.0.100 1
    

  2. Use the dspchstats command to verify traffic passing on the Frame Relay PVC:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:15 EST 
    
    Channel Statistics: 13.1.400      Cleared: July 20 2003 17:15   (/)
    MIR: 63.7/63.7 kbps     Collection Time: 0 day(s) 00:00:36      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               21        116      0    0
    To Network:              21        116      0    0              137         3
    Discarded:                0          0      0    0
    From Network:            20        106      0    0              120         3
    To Port:                 20        106      0    0
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:        0    ForeSight RTD    --
    Min-Pk bytes rcvd: --          FECN Frames:        0    FECN Ratio (%)    0
    Minutes Congested: --          BECN Frames:        0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.1.400
    

Lab 4: Frame Relay to ATM using ATFT Mode

This lab builds a Service Interworking Connection of Frame Relay to ATM using transparent mode (ATFT).

  • DLCI = 400

  • VPI/VCI = 0/100

  • An ATM port on a 3810 router (MFT configured for ATM mode)

  • ATM encapsulation of ATM adaptation layer (AAL) Network Layer Protocol Identifier (NLPID)—AAL5NLPID

  • Peak cell rate = 166cps/64Kbps

The following illustration shows the topology for this lab:

image033a.gif

    Complete the following steps for the Frame Relay side, IGX-A, 13.1 port configuration:

  1. Use the upport 13.1 command.

  2. Use the cnfport command to configure the port with the following parameters:

    • 1536 Kbps

    • Port signaling type = LMI

    • Interface type = DCE

    cnfport 13.1 DCE 1536 NORMAL 0 65535 65535 100 s N 15 3 4 N 75 25 3 N N Y 1 N
    
  3. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:10 EST 
    
    Port:       13.1              [ACTIVE  ]
    Interface:  V35     DCE                      Configured Clock:   1536 Kbps
    Clocking:   Normal                           Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0               Neighbor IfIndex: 0
    Port ID                        0       Min Flags / Frames           1
    Port Queue Depth           65535       OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535       T391 Link Intg Timer        10 sec
    DE Threshold                 100 %     N391 Full Status Poll        6 cyl
    Signalling Protocol    Cisco LMI       EFCI Mapping Enabled        No
    Asynchronous Status           No       CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15       IDE to DE Mapping          Yes
    N392 Error Threshold           3       Interface Control Template
    N393 Monitored Events Count    4          Lead    CTS    DSR    DCD
    Communicate Priority          No          State   ON     ON     ON
    Upper/Lower RNR Thresh  75%/ 25%       Advertise Intf Info    Disable
                                                                                    
    Last Command: dspport 13.1
    

Complete the following steps for the ATM side, IGX-B, 13.4, port configuration:

  1. Use the upln 13.4 command to bring up line 13.4.

  2. Use the upport 13.4 command to bring up port 13.4.

  3. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:10 EST 
    
    Port:       13.4    [ACTIVE  ]
    Interface:          T1-IMA                CAC Override:          Enabled
    Type:               UNI                   %Util Use:             Disabled
    Speed:              3622 (cps)            GW LCNs:               200
    SIG Queue Depth:    640                   Reserved BW:           0 (cps)
    Alloc Bandwidth:    3622 (cps)            VC Shaping:            Disabled
    Protocol:           NONE
                                                                                   
    Last Command: dspport 13.4
    

Complete the following steps to add a connection on the ATM side:

Tip: When adding Frame Relay to ATM based connections, it is easier to add from the ATM side rather than the Frame Relay side—this allows the switches to automatically calculate the correct MIR/CIR settings for the Frame Relay side.

  1. Use the addcon command to add a connection on the ATM side:

    addcon 13.4.0.100 IGX-A 13.1.400 atft 166 100 250000 166 1000 5 1280 35 5
    
  2. Use the dspcon command to verify your configurations:

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:17 EST 
    
    Conn:  13.4.0.200        IGX-A    13.1.500           atft     Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
        166/166    100/100  250000/250000   y       166/166      1000/1000    5
     
    Ownr:LOCAL Restr:NONE COS:0                            FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
    IGX-B  UXM:   OK                    IGX-A  UFMU:   OK
              Line 13.4 : OK                         UFI:   OK
              OAM Cell RX: Clear
              NNI:   OK
     
       PCR(0+1)        % Util       CDVT(0+1)            SCR               MBS     
      166/166         100/100     250000/250000       166/166          1000/1000
     
    Policing    VC Qdepth     EFCI         IBS     
        5      1280/1280     35/35        5/5
     
    This Command: dspcon 13.4.0.200
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:18 EST 
    
    Conn:  13.1.500          IGX-B    13.4.0.200         atft     Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
     63.7/63.7   63.7/63.7  61440/61440  63.7/63.7   10/10  21504/21504  63.7/63.7
     
    Ownr:REMOTE Restr:NONE COS:0                           FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UFMU:   OK                   IGX-B  UXM:   OK
              UFI:   OK                              Line 13.4 : OK
                                                     NNI:   OK
                                                                          
    Last Command: dspcon 13.1.500
    

Complete the following router configurations:

Router configuration for 3810-7b (Frame Relay side):

!
interface Serial0.500 point-to-point
 ip address 5.5.5.1 255.255.255.0
 frame-relay interface-dlci 500   
!

Router configuration for 3810-7d (ATM side):

!
controller T1 0
 framing esf
 linecode b8zs
 mode atm
!
!
interface ATM0.200 point-to-point
 ip address 5.5.5.2 255.255.255.0
 pvc 0/200 
  cbr 64  
  encapsulation aal5nlpid
 !

Perform the following ping command tests:

Ping test for 5.5.5.2:

wsw-3810-7b# ping 5.5.5.2
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 5.5.5.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/35/40 ms
wsw-3810-7b# ping 5.5.5.2
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 5.5.5.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/37/41 ms

Ping test for 5.5.5.1:

wsw-3810-7d# ping 5.5.5.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 5.5.5.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/34/44 ms
wsw-3810-7d# ping 5.5.5.1
 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 5.5.5.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/39/40 ms

Complete the following steps to verify traffic passing on the PVC.

  1. Use the dspchstats command to verify traffic passing on the ATM PVC:

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:20 EST 
    
    Channel Statistics: 13.4.0.200
    Collection Time: 0 day(s) 00:00:16                   Clrd:  07/20/02 17:19:59
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       45   From port              2
    Cells Tx to Network                            45   To network             2
    Cells Rcvd from Network                        45   From network           2
    Cells Transmitted to Port                      45   To port                2
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      45
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.4.0.200 1
    

  2. Use the dspchstats command to verify traffic passing on the Frame Relay PVC:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 20 2003 17:20 EST 
    
    Channel Statistics: 13.1.500      Cleared: July 20 2003 17:19   (\)
    MIR: 63.7/63.7 kbps     Collection Time: 0 day(s) 00:00:29      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               15        106      0    0
    To Network:              15        106      0    0               90         3
    Discarded:                0          0      0    0
    From Network:            15        106      0    0               90         3
    To Port:                 15        106      0    0
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:       0    ForeSight RTD    --
    Min-Pk bytes rcvd: --          FECN Frames:       0    FECN Ratio (%)    0
    Minutes Congested: --          BECN Frames:       0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.1.500 1
    

Lab 5: Frame Forwarding

This lab demonstrates how the UFMU card can be configured to transfer HDLC frames (emulating SNA) traffic, using an IGX Frame Relay cards. In this lab UFMU ports are configured for no signaling.

The following illustration shows the topology for this lab:

image035a.gif

    Complete the following steps for port configurations:

  1. Use the upport 13.1 command.

  2. Use the cnfport command to configure the IGX-A port with the following parameters:

    • 1536 Kbps

    • Port signaling type = None

    • Interface type = UNI

    cnfport 13.1 DCE 1536 NORMAL 0 65535 65535 100 n N N Y 1 N
    
  3. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 21 2003 18:56 EST 
    
    Port:       13.1              [ACTIVE  ]
    Interface:  V35     DCE                   Configured Clock:   1536 Kbps
    Clocking:   Normal                        Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0               Neighbor IfIndex: 0
    Port ID                        0    Min Flags / Frames           1
    Port Queue Depth           65535    OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535    T391 Link Intg Timer        10 sec
    DE Threshold                 100 %  N391 Full Status Poll        6 cyl
    Signalling Protocol         None    EFCI Mapping Enabled        No
    Asynchronous Status           No    CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15    IDE to DE Mapping          Yes
    N392 Error Threshold           3     Interface Control Template
    N393 Monitored Events Count    4        Lead    CTS    DSR    DCD
    Communicate Priority          No        State   ON     ON     ON
                                         Advertise Intf Info    Disable
                                                                                    
    Last Command: dspport 13.1
    

  4. Use the upport 6.1 command.

  5. Use the cnfport command to configure the IGX-B port with the following parameters:

    • 1536 Kbps

    • Port signaling type = None

    • Interface type = UNI

    cnfport 6.1 DCE 1536 NORMAL 0 65535 65535 100 n N N Y 1 N
    
  6. Use the dspport command to verify your configuration:

    Using the dspport Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 21 2003 18:58 EST 
    
    Port:       6.1               [ACTIVE  ]
    Interface:  V35     DCE                   Configured Clock:   1536 Kbps
    Clocking:   Normal                        Measured Rx Clock:  1536 Kbps
    Neighbor IP Add: 0.0.0.0            Neighbor IfIndex: 0
    Port ID                        0    Min Flags / Frames           1
    Port Queue Depth           65535    OAM Pkt Threshold            3 pkts
    ECN Queue Threshold        65535    T391 Link Intg Timer        10 sec
    DE Threshold                 100 %  N391 Full Status Poll        6 cyl
    Signalling Protocol         None    EFCI Mapping Enabled        No
    Asynchronous Status           No    CLLM Enabled/Tx Timer   No/  0 msec
    T392 Polling Verif Timer      15    IDE to DE Mapping          Yes
    N392 Error Threshold           3      Interface Control Template
    N393 Monitored Events Count    4         Lead    CTS    DSR    DCD
    Communicate Priority          No         State   ON     ON     ON
                                        Advertise Intf Info    Disable
                                                                              
    Last Command: dspport 6.1
    

  7. Use the addcon command to build the frame forwarding connection on IGX-A:

    addcon 13.1.* IGX-B 6.1.* 10
    
  8. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 21 2003 18:59 EST 
    
    Conn:  13.1.*            IGX-B    6.1.*              fr       Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
     1024/1024   1024/1024  65535/65535  1536/1536   10/10  65535/65535  1024/1024
    
    Ownr:LOCAL Restr:NONE COS:0                            FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
    
    IGX-A  UFMU:   OK                   IGX-B  UFMU:   OK
              UFI:   OK                              UFI:   OK
    
    Last Command: dspcon 13.1.*
    

  9. Perform the following 3810-7b router configuration:

    !
    interface Serial1
     ip address 6.6.6.1 255.255.255.0
    !
  10. Perform the following 3810-7d router configuration:

    !
    interface Serial0
     ip address 6.6.6.2 255.255.255.0
    !
  11. Perform the following ping command test 6.6.6.2:

    wsw-3810-7b# ping 6.6.6.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 6.6.6.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms
    wsw-3810-7b# ping 6.6.6.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 6.6.6.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms
    wsw-3810-7b#
  12. Perform the following ping command test 6.6.6.1:

    wsw-3810-7d# ping 6.6.6.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 6.6.6.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/10/24 ms
    wsw-3810-7d# ping 6.6.6.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 6.6.6.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/8/24 ms
    wsw-3810-7d#
  13. Use the dspportstats command to verify traffic passing:

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 21 2003 19:00 EST 
    
    Port Statistics for 13.1        Cleared: July 21 2003 19:00
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:00:28      Corrupted: NO
    Sig Protocol: None
                          Bytes      Average (kbps)     Util (%)         Frames
    From Port:           341586           94               6               3223
    To Port:             341398           94               6               3223
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd          0   Avg Tx Port Q         0
    Invalid Alignment      0   Status Xmit              0   FECN Frames           0
    Invalid Frm Length     0   Asynch Xmit              0        Ratio (%)        0
    Invalid Frm Format     0   Seq # Mismatches         0   BECN Frames           0
    Unknown DLCIs          0   Timeouts                 0        Ratio (%)        0
    Last Unknown DLCI      0   Invalid Req              0   Rsrc Overflow         0
                                                            DE Frms Dropd         0
                                                                                   
    This Command: dspportstats 13.1 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 21 2003 19:00 EST 
    
    Port Statistics for 6.1         Cleared: July 21 2003 19:00
    Port Speed: 1536 kbps   Collection Time: 0 day(s) 00:04:52      Corrupted: NO
    Sig Protocol: None
                          Bytes      Average (kbps)     Util (%)         Frames
    From Port:          3474324           95               6              32789
    To Port:            3474280           95               6              32790
    Frame Errors               LMI Receive Protocol Stats   Misc Statistics
    Invalid CRC            0   Status Enq Rcvd          0   Avg Tx Port Q         0
    Invalid Alignment      0   Status Xmit              0   FECN Frames           0
    Invalid Frm Length     0   Asynch Xmit              0        Ratio (%)        0
    Invalid Frm Format     0   Seq # Mismatches         0   BECN Frames           0
    Unknown DLCIs          0   Timeouts                 0        Ratio (%)        0
    Last Unknown DLCI      0   Invalid Req              0   Rsrc Overflow         0
                                                            DE Frms Dropd         0
    
    This Command: dspportstats 6.1 1
    

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 21 2003 19:01 EST 
    
    Channel Statistics: 13.1.*        Cleared: July 21 2003 19:00   (/)
    MIR: 1024/1024 kbps     Collection Time: 0 day(s) 00:00:11      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:             1253        105    105    8
    To Network:            1253        105    105    8             7510       633
    Discarded:                0          0      0    0
    From Network:          1252        106    105    8             7518       634
    To Port:               1252        106    105    8
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:             0    ForeSight RTD   --
    Min-Pk bytes rcvd: --          FECN Frames:             0    FECN Ratio (%)   0
    Minutes Congested: --          BECN Frames:             0    BECN Ratio (%)   0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.1.* 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 21 2003 19:01 EST 
    
    Channel Statistics: 6.1.*         Cleared: July 21 2003 19:00   (-)
    MIR: 1024/1024 kbps     Collection Time: 0 day(s) 00:04:40      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:            31280        105    111    9
    To Network:           31280        105    111    9           187618       669
    Discarded:                0          0      0    0
    From Network:         31279        105    111    9           187596       668
    To Port:              31279        105    111    9
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:             0    ForeSight RTD   --
    Min-Pk bytes rcvd: --          FECN Frames:             0    FECN Ratio (%)   0
    Minutes Congested: --          BECN Frames:             0    BECN Ratio (%)   0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 6.1.* 1
    

IGX ATM Configuration

This section describes ATM capabilities of the IGX switch. The UXM card is used as a UNI line connected to a pair of routers.

The ATM cell is 53 octets long and includes a 5-octet header with a 48 octet payload. An ATM cell is composed of the following:

  • Generic Flow Control (GFC):

    • In the UNI header, this is a 4-bit field that provides flow control information specific to a connection.

    • Applies to the UNI cell header and is not currently used.

  • Virtual Path Identifier (VPI):

    • A logical grouping of VCIs.

    • Allows an ATM switch to perform operations on groups of VCIs.

  • Virtual Circuit Identifier (VCI)—A logical identification for a virtual channel between two ATM entities.

  • Payload Type Identifier (PTI)—A 3-bit field that characterizes the information in the payload of the cell.

  • Cell Loss Priority (CLP):

    • Helps determine whether the cell is of normal or low priority.

    • Can be set by either CPE or network ATM switch.

    • Used to respond to congestion situations that can cause data loss.

  • Header Error Control (HEC)—An 8-bit CRC on the cell header only.

The following illustration shows the standard ATM cell format:

image037.gif

ATM Signaling

ATM signaling uses Integrated Local Management Interface (ILMI), which enables devices to determine the status of components at the other end of a physical link and to negotiate a common set of operational parameters to ensure interoperability. ILMI operates over a reserved VCC of VPI = X, VCI = 16.

You can enable or disable ILMI—Cisco recommends that you enable it. Enabling ILMI allows the devices to determine the highest UNI interface level to operate (3.0, 3.1, 4.0), UNI vs. NNI, as well as numerous other elements. ILMI also allows devices to share information such as Network Service Access Point (NSAP) addresses, peer interface names, and IP addresses. Without ILMI many parameters must be manually configured for the ATM attached devices to operate correctly.

Operation, Administration, Maintenance Cells

Operation, administration, maintenance (OAM) cells carry standard management information between ATM devices. There are two basic types of OAM cells:

  • F4—Used for Virtual Path (VP) monitoring.

  • F5—Used for Virtual Circuit (VC) monitoring.

OAM traffic flows in two different ways:

  • End-to-End—Flow is between terminating equipment; OAM cells are not interpreted by the intermediate elements.

  • Segment—Flow is between two adjacent network elements (CPE and switch).

The following illustration shows OAM cells flowing in a network:

image039.gif

For F4 OAM cells, a VCI of 3 identifies Segment flow and a VCI of 4 identifies End-to-End flow.

F5 OAM cells use the PTI field to identify the flow control.

The PTI field is used to distinguish the various types of management cells and user cells found within the payload. The following table describes PTI field values:

PTI Field Value (Bits) Description
000 User data, no congestion, SDU type = 0
001 User data, no congestion, SDU type = 1
010 User data, congestion, SDU type = 0
011 User data, congestion, SDU type = 1
100 Congestion management, no congestion present, OAM F5 Segment to Segment cell
101 Congestion management, no congestion present, OAM F5 End to End cell
110 Reserved
111 Reserved

ATM Traffic Classes

The IGX supports the following standard ATM traffic classes to meet ATM-standard Class of Service (CoS) requirements:

  • Constant Bit Rate (CBR)—Used for time-dependant constant range traffic such as uncompressed voice, video, or synchronous data. Most often, CBR connections carry cells created using AAL1. CBR connections have allowances for burstiness.

  • Real Time Variable Bit Rate (RT-VBR) and Nonreal Time Variable Bit Rate (NRT-VBR)—Used for bursty traffic that may have some time dependency such as compressed voice, video, or synchronous data. Traffic is permitted within set limitations. VBR connections can support any variable rate application, but are used most often with AAL5 cells.

    RT-VBR is used for connections which require a fixed timing relationship between the source and the destination.

    NRT-VBR is used for connections that do not require a fixed timing relationship, but still need a guaranteed Quality of Service (QoS). Traffic is permitted to burst within set limitations.

  • Available Bit Rate (ABR)—A variation on VBR; most commonly used for LAN-WAN services such as router traffic. ABR is used for connections that do not require a timing relationship between the source and destination.

    ABR traffic, like VBR, supports variable rate applications. The added function of ABR connections is the ability to adjust the data rates in order to accommodate for congestion and bandwidth availability in the network. ABR connections are typically used to support AAL5 ATM cells.

  • Undefined Bit Rate (UBR)—Connections are variable rate connections without a guaranteed service rate. If there is congestion or no available bandwidth, a UBR connection is not given bandwidth in the network. UBR connections are used for variable rate applications that are tolerant of zero-transmission periods such as batch processed email or LAN Emulation (LANE).

  • Separately-configurable CoS buffers (Qbins) and Port Queuing—Qbins store cells and serve them to an interface based on bandwidth availability and CoS priority. For example, if CBR and ABR cells must exit the switch from the same interface, but the interface is already transmitting CBR cells from another source, the newly-arrived CBR and ABR cells are held in the Qbin associated with that interface. As the interface becomes accessible, the Qbin passes CBR cells to the interface for transmission. After the CBR cells have been transmitted, the ABR cells are passed to the interface and transmitted to their destination.

    The following illustration shows UXM Virtual Interfaces and Qbins:

    image041.gif

    The following illustration shows ATM cell flow:

    image043.gif

    Configurable parameters:

    • VC Queue Depth—Determines the depth of the queue. If the Qbin exceeds the defined queue size, all arriving cells are dropped.

    • Explicit Forward Congestion Indication (EFCI) Threshold—Determines congestion marking. When the Qbin reaches the EFCI threshold, all arriving cells into the Qbin have the EFCI bit set to 1, which notifies the CPE of congestion in the network.

    • CLP High Threshold—Determines when to start dropping CLP tagged cells. When the Qbin reaches the CLP high threshold, all arriving cells with the CLP bit tagged (set to 1) are dropped. Any cells already in Qbin, regardless of CLP bit, are not dropped.

ATM Labs

This section provides basic lab setups, which demonstrate ATM PVC provisioning. These labs are based on the UXM and UFMU cards (for SIW connection examples). The following illustration shows the topology for the ATM labs in this section, except for IMA lines:

image045a.gif

All ATM labs in this section have the following configurations.

An IGX-A line and port configuration of:

  1. upln 16.3

  2. upport 16.3

  3. Verifications with the dsplncnf and dspport commands:

    Using the dsplncnf Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:51 EST 
    
    LN  16.3 Config       T1/24                 UXM slot:16                        
    IMA Group Member(s):  3                  
    Retained links:       1                  
    IMA Protocol Option:  Disabled           
    IMA Max. Diff. Dly:   --      msec.      
    IMA Clock Mode:       --                 
    Loop clock:           No                 
    Line framing:         ESF                
    Line coding:          B8ZS               
    Line cable type:      ABAM               
    Line length:          0-131 ft.          
    Idle code:            7F hex             
    HCS Masking:          Yes                
    Payload Scramble:     No                 
                                                                                  
    Last Command: dsplncnf 16.3
    

    Using the dspport Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:52 EST 
    
    Port:       16.3    [ACTIVE  ]
    Interface:          T1-IMA                CAC Override:          Enabled
    Type:               UNI                   %Util Use:             Disabled
    Speed:              3622 (cps)            GW LCNs:               200
    SIG Queue Depth:    640                   Reserved BW:           0 (cps)
    Alloc Bandwidth:    3622 (cps)            VC Shaping:            Disabled
    Protocol:           NONE
     
    Last Command: dspport 16.3
    

An IGX-B line and port configuration of:

  1. upln 13.3

  2. upport 13.3

  3. Verifications with the dspln and dspport commands:

    Using the dspln Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:53 EST 
    
    LN  13.3 Config       T1/24                 UXM slot:13                        
    IMA Group Member(s):  3                  
    Retained links:       1                  
    IMA Protocol Option:  Disabled           
    IMA Max. Diff. Dly:   --      msec.      
    IMA Clock Mode:       --                 
    Loop clock:           No                 
    Line framing:         ESF                
    Line coding:          B8ZS               
    Line cable type:      ABAM               
    Line length:          0-131 ft.          
    Idle code:            7F hex             
    HCS Masking:          Yes                
    Payload Scramble:     No                 
                                                                                   
    Last Command: dspln 13.3
    

    Using the dspport Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:53 EST 
    
    Port:       13.3    [ACTIVE  ]
    Interface:          T1-IMA                CAC Override:          Enabled
    Type:               UNI                   %Util Use:             Disabled
    Speed:              3622 (cps)            GW LCNs:               200
    SIG Queue Depth:    640                   Reserved BW:           0 (cps)
    Alloc Bandwidth:    3622 (cps)            VC Shaping:            Disabled
    Protocol:           NONE
                                                                                    
    Last Command: dspport 13.3
    

The following labs are contained in this section:

Lab 1: CBR Connection

This lab builds a CBR PVC between 3640-7a and 2612-7b, using the following parameters:

  • CBR Connection type

  • VPI 1/100 on each side

  • 1 MB PVC

  • No policing

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Use the addcon command to add a CBR connection from the IGX-A side:

    addcon 16.3.1.100 IGX-B 13.3.1.100 cbr 2667 * * 5 * * * Y
    
  3. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:55 EST 
    
    Conn:  16.3.1.100        IGX-B    13.3.1.100         cbr      Status:OK
       PCR(0+1)     % Util    CDVT(0+1)     Policing 
       2667/2667   100/100   10000/10000     5/5
    
    Ownr:LOCAL Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
    
    IGX-A  UXM:   OK                    IGX-B  UXM:   OK
              Line 16.3 : OK                         Line 13.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 16.3.1.100
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 22 2003 22:56 EST 
    
    Conn:  16.3.1.100        IGX-B    13.3.1.100         cbr      Status:OK
    
       PCR(0+1)      % Util       CDVT(0+1)       Policing   VC Qdepth       CLP Hi
     2667/2667      100/100      10000/10000          5      160/160         80/80
     
        CLP Lo  
        35/35
     
    Trunk Cell Routing Restrict: Y
                                                                                   
    Last Command: dspcon 16.3.1.100
    

  4. Perform the following router configuration for 3640-7a:

    !
    interface ATM3/0
     no ip address
     no atm ilmi-keepalive
     no scrambling-payload
    !
    interface ATM3/0.100 point-to-point
     ip address 20.1.1.1 255.255.255.0
     pvc 1/100 
      cbr 1024 
      encapsulation aal5snap
     !
  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0
     no ip address
     no ip directed-broadcast
     no atm ilmi-keepalive
     no scrambling-payload
     no fair-queue
    !
    interface ATM1/0.100 point-to-point
     ip address 20.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/100 
      cbr 1000 
      encapsulation aal5snap
     !
  6. Perform the following ping command test:

    wsw-3640-7a# ping 20.1.1.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 20.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
    wsw-3640-7a# ping 20.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 20.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
  7. Perform the following ping command test:

    wsw-2612-7b# ping 20.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 20.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms
    wsw-2612-7b# ping 20.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 20.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
  8. Use the dspchstats and dspportstats commands to verify traffic is passing on the PVC:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:38 EST 
    
    Channel Statistics: 16.3.1.100
    Collection Time: 0 day(s) 00:03:06                   Clrd:  07/23/02 13:38:10
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                     3363   From port             18
    Cells Tx to Network                          3363   To network            18
    Cells Rcvd from Network                      3384   From network          18
    Cells Transmitted to Port                    3384   To port               18
    EOF Cells Rcvd from Port                     1121
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                    3363
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 16.3.1.100 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:38 EST 
    
    Channel Statistics: 13.3.1.100
    Collection Time: 0 day(s) 00:02:29                   Clrd:  07/23/02 13:38:21
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                     3354   From port             22
    Cells Tx to Network                          3354   To network            22
    Cells Rcvd from Network                      3333   From network          22
    Cells Transmitted to Port                    3333   To port               22
    EOF Cells Rcvd from Port                     1118
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                    3354
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.100 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:39 EST 
    
    Port 16.3                                                            Snapshot
    Collection Time: 0 day(s) 00:05:47                   Clrd:  07/23/02 13:38:14
    Type                                      Count   
    VI: Cells received                           3363
    VI: Cells transmitted                        3384
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                   3363
    VI: Cells transmitted w/CLP=0                3384
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    Last Command: dspportstats 16.3
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:39 EST 
    
    Port 13.3
    Collection Time: 0 day(s) 00:05:16                   Clrd:  07/23/02 13:38:18
    Type                                      Count   
    VI: Cells received                           3384
    VI: Cells transmitted                        3363
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                   3384
    VI: Cells transmitted w/CLP=0                3363
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    This Command: dspportstats 13.3 1
    

Lab 2: RT-VBR Connection

This lab builds an RT-VBR PVC between 3640-7a and 2612-7b, using the following parameters:

  • RT-VBR Connection type

  • VPI 1/150 on each side

  • 1 MB PVC

  • No policing

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Use the addcon command to add a CBR connection from the IGX-A side.

    addcon 16.3.1.150 IGX-B 13.3.1.150 rt-vbr 2667 * * * * * 5 * * *
    
  3. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:42 EST 
    
    Conn:  16.3.1.150        IGX-B    13.3.1.150         rt-vbr   Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
       2667/2667   100/100  250000/250000   n      2667/2667     1000/1000    5
     
    Ownr:LOCAL Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B           
    Pref:   Not Configured                           
                                                     
    IGX-A  UXM:   OK                    IGX-B  UXM:   OK
              Line 16.3 : OK                         Line 13.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK                              
                                                                                    
    This Command: dspcon 16.3.1.150
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:42 EST 
    
    Conn:  16.3.1.150        IGX-B    13.3.1.150         rt-vbr   Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC        SCR     
     2667/2667     100/100     250000/250000         n        2667/2667
     
         MBS       Policing   VC Qdepth    CLP Hi     CLP Lo  
     1000/1000         5     1280/1280     80/80      35/35
                                                     
    Trunk Cell Routing Restrict: Y
                                                                                  
    Last Command: dspcon 16.3.1.150
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:42 EST 
    
    Conn:  13.3.1.150        IGX-A    16.3.1.150         rt-vbr   Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
       2667/2667   100/100  250000/250000   n      2667/2667     1000/1000    5
     
    Ownr:REMOTE Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
    IGX-B  UXM:   OK                    IGX-A  UXM:   OK
              Line 13.3 : OK                         Line 16.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 13.3.1.150
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:43 EST 
    
    Conn:  13.3.1.150        IGX-A    16.3.1.150         rt-vbr   Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC        SCR     
     2667/2667     100/100     250000/250000         n        2667/2667
     
         MBS       Policing   VC Qdepth    CLP Hi     CLP Lo  
     1000/1000         5     1280/1280     80/80      35/35
     
    Trunk Cell Routing Restrict: Y
                                                   
    Last Command: dspcon 13.3.1.150
    

  4. Perform the following router configuration for 3640-7a:

    !
    interface ATM3/0.150 point-to-point
     ip address 21.1.1.1 255.255.255.0
     pvc 1/150 
     vbr-rt 1025 512 1000
     encapsulation aal5snap
     !
  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0.150 point-to-point
     ip address 21.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/150 
      vbr-rt 1000 512 1000
      encapsulation aal5snap
     !
  6. Perform the following ping command test:

    wsw-3640-7a# ping 21.1.1.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 21.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
    wsw-3640-7a# ping 21.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 21.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms
    wsw-3640-7a#
  7. Perform the following ping command test:

    wsw-2612-7b# ping 21.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 21.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms
    wsw-2612-7b# ping 21.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 21.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
  8. Use the dspchstats and dspportstats commands to verify traffic passing on the PVC:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:48 EST 
    
    Channel Statistics: 16.3.1.150
    Collection Time: 0 day(s) 00:00:03                   Clrd:  07/23/02 13:47:57
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                      675   From port            170
    Cells Tx to Network                           675   To network           170
    Cells Rcvd from Network                       678   From network         171
    Cells Transmitted to Port                     678   To port              171
    EOF Cells Rcvd from Port                      225
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                     675
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 16.3.1.150 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:50 EST 
    
    Channel Statistics: 13.3.1.150
    Collection Time: 0 day(s) 00:01:16                   Clrd:  07/23/02 13:48:19
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                      675   From port              8
    Cells Tx to Network                           675   To network             8
    Cells Rcvd from Network                       663   From network           8
    Cells Transmitted to Port                     663   To port                8
    EOF Cells Rcvd from Port                      225
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                     675
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.150 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:50 EST 
    
    Port 16.3
    Collection Time: 0 day(s) 00:07:04                   Clrd:  07/23/02 13:48:03
    Type                                      Count   
    VI: Cells received                           3320
    VI: Cells transmitted                        3361
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                   3320
    VI: Cells transmitted w/CLP=0                3361
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    This Command: dspportstats 16.3 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:50 EST 
    
    Port 13.3                                                            Snapshot
    Collection Time: 0 day(s) 00:06:04                   Clrd:  07/23/02 13:48:15
    Type                                      Count   
    VI: Cells received                           3361
    VI: Cells transmitted                        3320
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                   3361
    VI: Cells transmitted w/CLP=0                3320
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    I: RM cells transmitted                        0
                                                                                    
    Last Command: dspportstats 13.3
    

Lab 3: NRT-VBR Connection

This lab builds an NRT-VBR PVC between 3640-7a and 2612-7b, using the following parameters:

  • NRT-VBR Connection type

  • VPI 1/200 on each side

  • 1 MB PVC

  • No policing

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Use the addcon command to add an NRT-VBR connection from the IGX-A side:

    addcon 16.3.1.200 IGX-B 13.3.1.200 nrt-vbr 2667 * * * * * 5 * * * Y
    
  3. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:52 EST 
    
    Conn:  16.3.1.200        IGX-B    13.3.1.200         nrt-vbr  Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
       2667/2667   100/100  250000/250000   n      2667/2667     1000/1000    5
    
    Ownr:LOCAL Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A16.1--13.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UXM:   OK                    IGX-B  UXM:   OK
              Line 16.3 : OK                         Line 13.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 16.3.1.200
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:52 EST 
    
    Conn:  16.3.1.200        IGX-B    13.3.1.200         nrt-vbr  Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC        SCR     
     2667/2667     100/100     250000/250000         n        2667/2667
     
         MBS       Policing   VC Qdepth    CLP Hi     CLP Lo  
     1000/1000         5     1280/1280     80/80      35/35
     
    Trunk Cell Routing Restrict: Y
                                                                                   
    Last Command: dspcon 16.3.1.200
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:52 EST 
    
    Conn:  16.3.1.200        IGX-B    13.3.1.200         nrt-vbr  Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC        SCR     
     2667/2667     100/100     250000/250000         n        2667/2667
     
         MBS       Policing   VC Qdepth    CLP Hi     CLP Lo  
     1000/1000         5     1280/1280     80/80      35/35
     
    Trunk Cell Routing Restrict: Y
                                                                                   
    Last Command: dspcon 16.3.1.200
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:53 EST 
    
    Conn:  13.3.1.200        IGX-A    16.3.1.200         nrt-vbr  Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC        SCR     
     2667/2667     100/100     250000/250000         n        2667/2667
     
         MBS       Policing   VC Qdepth    CLP Hi     CLP Lo  
     1000/1000         5     1280/1280     80/80      35/35
     
    Trunk Cell Routing Restrict: Y
                                                                                  
    Last Command: dspcon 13.3.1.200
    

  4. Perform the following router configuration for 3640-7a:

    !
    interface ATM3/0.200 point-to-point
     ip address 22.1.1.1 255.255.255.0
     pvc 1/200 
      vbr-nrt 1024 512 1000
      encapsulation aal5snap
     !
  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0.200 point-to-point
     ip address 22.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/200 
      vbr-nrt 1000 512 1000
      encapsulation aal5snap
     !
  6. Perform the following ping command test:

    wsw-3640-7a# ping 22.1.1.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 22.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms
    wsw-3640-7a# ping 22.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 22.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms
  7. Perform the following ping command test:

    wsw-2612-7b# ping 22.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 22.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms
    wsw-2612-7b# ping 22.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 22.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/14/16 ms
  8. Use the dspchstats and dspportstats commands to verify traffic passing:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:57 EST 
    
    Channel Statistics: 16.3.1.200
    Collection Time: 0 day(s) 00:00:13                   Clrd:  07/23/02 13:57:32
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       45   From port              3
    Cells Tx to Network                            45   To network             3
    Cells Rcvd from Network                        45   From network           3
    Cells Transmitted to Port                      45   To port                3
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      45
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 16.3.1.200 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:57 EST 
    
    Channel Statistics: 13.3.1.200
    Collection Time: 0 day(s) 00:00:24                   Clrd:  07/23/02 13:56:58
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       45   From port              1
    Cells Tx to Network                            45   To network             1
    Cells Rcvd from Network                        42   From network           1
    Cells Transmitted to Port                      42   To port                1
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      45
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.200 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:58 EST 
    
    Port 16.3
    Collection Time: 0 day(s) 00:04:51                   Clrd:  07/23/02 13:56:51
    Type                                      Count   
    VI: Cells received                            260
    VI: Cells transmitted                         230
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                    231
    VI: Cells transmitted w/CLP=0                 230
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                    29
    VI: OAM cells received                         59
    VI: OAM cells transmitted                      31
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    This Command: dspportstats 16.3 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.45    July 23 2003 13:58 EST 
    
    Port 13.3
    Collection Time: 0 day(s) 00:03:44                   Clrd:  07/23/02 13:56:54
    Type                                      Count   
    VI: Cells received                            289
    VI: Cells transmitted                         224
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                    231
    VI: Cells transmitted w/CLP=0                 224
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                    58
    VI: OAM cells received                         62
    VI: OAM cells transmitted                      31
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    This Command: dspportstats 13.3 1
    

Lab 4: ABR Connection

This lab builds an ABR Standard (ABRSTD) PVC between 3640-7a and 2612-7b, using the following parameters:

  • ABRSTD connection type

  • VPI 1/250 on each side

  • 1 MB PVC

  • No policing

  • No virtual source/virtual destination (VSVD)

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Use the addcon command to add an ABR connection from IGX-A side:

    addcon 16.3.1.250 IGX-B 13.3.1.250 ABRSTD 2667 * 2667 * * * 5 Y
    
  3. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 14:00 EST 
    
    Conn:  16.3.1.250        IGX-B    13.3.1.250         abrstd   Status:Ok
       PCR(0+1)     % Util     MCR          CDVT(0+1)   FBTC  FST  VSVD  FCES
       2667/2667   100/100   2667/2667    250000/250000  y     n    n    n
     
    Ownr:LOCAL Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A16.1--13.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UXM:   OK                    IGX-B  UXM:   OK
              Line 16.3 : OK                         Line 13.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 16.3.1.250
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.45    July 23 2003 14:00 EST 
    
    Conn:  16.3.1.250        IGX-B    13.3.1.250         abrstd   Status:Ok
     
       PCR(0+1)       % Util      MCR            CDVT(0+1)       AAL5 FBTC     VSVD
     2667/2667       100/100  2667/2667        250000/250000         y          n
     
      Policing
          5
     
    Trunk Cell Routing Restrict: Y
                                                                                  
    Last Command: dspcon 16.3.1.250
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:00 EST 
    
    Conn:  13.3.1.250        IGX-A    16.3.1.250         abrstd   Status:Ok
       PCR(0+1)     % Util     MCR          CDVT(0+1)   FBTC  FST  VSVD  FCES
       2667/2667   100/100   2667/2667    250000/250000  y     n    n    n
     
    Ownr:REMOTE Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A16.1--13.1IGX-B                                
    Pref:   Not Configured                           
                                                     
    IGX-B  UXM:   OK                    IGX-A  UXM:   OK
              Line 13.3 : OK                         Line 16.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK                              
                                                                                    
    This Command: dspcon 13.3.1.250
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:00 EST 
    
    Conn:  13.3.1.250        IGX-A    16.3.1.250         abrstd   Status:Ok
     
       PCR(0+1)       % Util      MCR            CDVT(0+1)       AAL5 FBTC     VSVD
     2667/2667       100/100  2667/2667        250000/250000         y          n
     
      Policing
          5
                                                     
    Trunk Cell Routing Restrict: Y
     
    Last Command: dspcon 13.3.1.250
    

  4. Perform the following router configuration for 3640-7a:

    !
    interface ATM3/0.250 point-to-point
     ip address 23.1.1.1 255.255.255.0
     pvc 1/250 
      abr 1024 512
      encapsulation aal5snap
     !
  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0.250 point-to-point
     ip address 23.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/250 
      abr 1000 512
      encapsulation aal5snap
     !
  6. Perform the following ping command test:

    wsw-3640-7a# ping 23.1.1.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/48/60 ms
    wsw-3640-7a# ping 23.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 23.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/47/60 ms
  7. Perform the following ping command test:

    wsw-2612-7b# ping 23.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 23.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/49/64 ms
    wsw-2612-7b# ping 23.1.1.1 
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 23.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 32/48/60 ms
  8. Use the dspchstats and dspportstats commands to verify traffic passing:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:05 EST 
    
    Channel Statistics: 16.3.1.250
    Collection Time: 0 day(s) 00:00:21                   Clrd:  07/23/02 14:04:33
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       57   From port              2
    Cells Tx to Network                            57   To network             2
    Cells Rcvd from Network                        63   From network           2
    Cells Transmitted to Port                      63   To port                2
    EOF Cells Rcvd from Port                       13
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      57
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 16.3.1.250 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:05 EST 
    
    Channel Statistics: 13.3.1.250
    Collection Time: 0 day(s) 00:00:20                   Clrd:  07/23/02 14:04:39
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       63   From port              3
    Cells Tx to Network                            63   To network             3
    Cells Rcvd from Network                        57   From network           2
    Cells Transmitted to Port                      57   To port                2
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      63
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.250 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:06 EST 
    
    Port 16.3
    Collection Time: 0 day(s) 00:00:30                   Clrd:  07/23/02 14:05:46
    Type                                      Count   
    VI: Cells received                             85
    VI: Cells transmitted                          85
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                     85
    VI: Cells transmitted w/CLP=0                  85
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                          25
    VI: RM cells transmitted                       25
                                                                                    
    This Command: dspportstats 16.3 1
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:06 EST 
    
    Port 13.3
    Collection Time: 0 day(s) 00:00:25                   Clrd:  07/23/02 14:05:52
    Type                                      Count   
    VI: Cells received                             85
    VI: Cells transmitted                          85
    VI: Cells rcvd w/CLP=1                          0
    VI: Cells tx w/CLP=1                            0
    VI: Cells received w/CLP=0                     85
    VI: Cells transmitted w/CLP=0                  85
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                          25
    VI: RM cells transmitted                       25
                                                                                    
    This Command: dspportstats 13.3 1
    

Lab 5: UBR Connection

This lab builds a UBR PVC between 3640-7a and 2612-7b, using the following parameters:

  • UBR Connection type

  • VPI 1/251 on each side

  • 1 MB PVC

  • No policing

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Use the addcon command to add a UBR connection from the IGX-A side:

    addcon 16.3.1.251 IGX-B 13.3.1.251 UBR 2667 * * * * Y
    
  3. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:07 EST 
    
    Conn:  16.3.1.251        IGX-B    13.3.1.251         ubr      Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC CLP Set
       2667/2667     1/1    250000/250000   n     1
     
    Ownr:LOCAL Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UXM:   OK                    IGX-B  UXM:   OK
              Line 16.3 : OK                         Line 13.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 16.3.1.251
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:07 EST 
    
    Conn:  16.3.1.300        IGX-B    13.3.1.300         ubr      Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC   CLP Setting
     2667/2667       1/1       250000/250000         n            y
     
    Trunk Cell Routing Restrict: Y
                                                                                   
    Last Command: dspcon 16.3.1.300
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:08 EST 
    
    Conn:  13.3.1.251        IGX-A    16.3.1.251         ubr      Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC CLP Set
       2667/2667     1/1    250000/250000   n     1
     
    Ownr:REMOTE Restr:NONE COS:0 Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
    IGX-B  UXM:   OK                    IGX-A  UXM:   OK
              Line 13.3 : OK                         Line 16.3 : OK
              OAM Cell RX: Clear                     NNI:   OK
              NNI:   OK
                                                                                    
    This Command: dspcon 13.3.1.251
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 14:08 EST 
    
    Conn:  13.3.1.251        IGX-A    16.3.1.251         ubr      Status:OK
     
       PCR(0+1)     % Util       CDVT(0+1)       AAL5 FBTC   CLP Setting
     2667/2667       1/1       250000/250000         n            y
     
    Trunk Cell Routing Restrict: Y
                                                                                    
    Last Command: dspcon 13.3.1.251
    

  4. Perform the following router configuration for 3640-7b:

    !
    interface ATM3/0.251 point-to-point
     ip address 24.1.1.1 255.255.255.0
     pvc 1/251 
      ubr 1000
      encapsulation aal5snap
     !
  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0.251 point-to-point
     ip address 24.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/251 
      ubr 100
     !
  6. Perform the following ping command test:

    wsw-3640-7a# ping 24.1.1.2
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 24.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/13/16 ms
    wsw-3640-7a# ping 24.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 24.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/15/16 ms
  7. Perform the following ping command test:

    wsw-2612-7b# ping 24.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 24.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/14/16 ms
    wsw-2612-7b# ping 24.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 24.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 12/15/16 ms
  8. Use the dspchstats and dspportstats commands to verify traffic passing on the PVC:

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2003 15:21 EST 
    
    Channel Statistics: 16.3.1.251
    Collection Time: 0 day(s) 00:00:55                   Clrd:  07/23/02 15:20:56
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       24   From port              0
    Cells Tx to Network                            24   To network             0
    Cells Rcvd from Network                        30   From network           0
    Cells Transmitted to Port                      30   To port                0
    EOF Cells Rcvd from Port                        8
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      24
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 16.3.1.251 1
    

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2003 15:21 EST 
    
    Channel Statistics: 13.3.1.251
    Collection Time: 0 day(s) 00:05:19                   Clrd:  07/23/02 15:21:00
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                      105   From port              0
    Cells Tx to Network                           105   To network             0
    Cells Rcvd from Network                        99   From network           0
    Cells Transmitted to Port                      99   To port                0
    EOF Cells Rcvd from Port                       35
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                     105
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.251 1
    

    Using the dspportstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:22 EST 
    
    Port 16.3                                                            Snapshot
    Collection Time: 0 day(s) 00:04:31                   Clrd:  07/23/02 15:22:14
    Type                                      Count   
    VI: Cells received                            161
    VI: Cells transmitted                         167
    VI: Cells rcvd w/CLP=1                        137
    VI: Cells tx w/CLP=1                          139
    VI: Cells received w/CLP=0                     24
    VI: Cells transmitted w/CLP=0                  28
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    Last Command: dspportstats 16.3
    

    Using the dspportstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:23 EST 
    
    Port 13.3                                                            Snapshot
    Collection Time: 0 day(s) 00:03:17                   Clrd:  07/23/02 15:22:29
    Type                                      Count   
    VI: Cells received                            166
    VI: Cells transmitted                         160
    VI: Cells rcvd w/CLP=1                        139
    VI: Cells tx w/CLP=1                          137
    VI: Cells received w/CLP=0                     27
    VI: Cells transmitted w/CLP=0                  23
    VI: Cells discarded w/CLP=1                     0
    VI: Cells discarded w/CLP=0                     0
    VI: OAM cells received                          0
    VI: OAM cells transmitted                       0
    VI: RM cells received                           0
    VI: RM cells transmitted                        0
                                                                                    
    Last Command: dspportstats 13.3 1
    

Lab 6: SIW-X AFTF Connection

This lab builds a Service Interworking connection using translational mode between the 2612-7b ATM interface, and the 3810-7b Frame Relay interface, with the following parameters:

  • ATM requirements:

    • ATFX connection type

    • VPI 1/252 on ATM side

    • 1 MB PVC

    • No policing

  • Frame Relay requirements:

    • DLCI = 251

    • 1 MB PVC

    • LMI signaling of Cisco/Stratacom

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Refer to the Frame Relay section for Frame Relay interface configuration steps.

  3. Use the addcon command to add the SIW ATFX connection from IGX-B to 3810-7b Frame Relay:

    addcon 13.3.1.252 IGX-A 13.1.251 atfx 2667 100 250000 2667 1000  5 1280 35 5
    
  4. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:51 EST 
    
    Conn:  13.3.1.252        IGX-A    13.1.251           atfx     Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
       2667/2667   100/100  250000/250000   y      2667/2667     1000/1000    5
     
    Ownr:LOCAL Restr:NONE COS:0                            FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
     
    IGX-B  UXM:   OK                    IGX-A  UFMU:   OK
              Line 13.3 : OK                         UFI:   OK
              OAM Cell RX: Clear
              NNI:   OK
                                                                                    
    This Command: dspcon 13.3.1.252
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:52 EST 
    
    Conn:  13.3.1.252        IGX-A    13.1.251           atfx     Status:OK
     
       PCR(0+1)        % Util       CDVT(0+1)            SCR               MBS     
     2667/2667        100/100     250000/250000      2667/2667         1000/1000
     
    Policing    VC Qdepth     EFCI         IBS     
        5      1280/1280     35/35        5/5
                                                                                    
    Last Command: dspcon 13.3.1.252
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:52 EST 
    
    Conn:  13.1.251          IGX-B    13.3.1.252         atfx     Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
     1024/1024   1024/1024  61440/61440  1024/1024   10/10  21504/21504  1024/1024
     
    Ownr:REMOTE Restr:NONE COS:0                           FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
     
     
    IGX-A  UFMU:   OK                   IGX-B  UXM:   OK
              UFI:   OK                              Line 13.3 : OK
                                                     NNI:   OK
                                                                                    
    Last Command: dspcon 13.1.251
    

  5. Perform the following router configuration for 2623-7b:

    !
    interface ATM1/0.252 point-to-point
     ip address 25.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/252 
      vbr-nrt 1000 512 1000
      encapsulation aal5snap
     !
  6. Perform the following router configuration for 3810-7b (Frame Relay router):

    !
    interface Serial0
     no ip address
     encapsulation frame-relay IETF
     no ip mroute-cache
     no fair-queue
     clockrate line 1536000
     frame-relay lmi-type cisco
    !         
    interface Serial0.100 point-to-point
     ip address 25.1.1.1 255.255.255.0
     no arp frame-relay
     frame-relay interface-dlci 251   
    !
  7. Perform the following ping command test:

    wsw-2612-7b# ping 25.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 25.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
    wsw-2612-7b# ping 25.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 25.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
  8. Perform the following ping command test:

    wsw-3810-7b# ping 25.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 25.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms
    wsw-3810-7b# ping 25.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 25.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
    wsw-3810-7b#
  9. Use the dspchstats command to verify traffic passing on the IGX:

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:55 EST 
    
    Channel Statistics: 13.3.1.252
    Collection Time: 0 day(s) 00:00:10                   Clrd:  07/23/02 15:54:04
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       45   From port              4
    Cells Tx to Network                            45   To network             4
    Cells Rcvd from Network                        52   From network           4
    Cells Transmitted to Port                      52   To port                4
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      45
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.252 1
    

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:55 EST 
    
    Channel Statistics: 13.1.251      Cleared: July 23 2002 15:53   (/)
    MIR: 1024.1/1024.1 kbps Collection Time: 0 day(s) 00:00:26      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               16        118      0    0
    To Network:              16        118      0    0              106         3
    Discarded:                0          0      0    0
    From Network:            15        106      0    0               90         3
    To Port:                 15        106      0    0
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:       0    ForeSight RTD    --
    Min-Pk bytes rcvd: --          FECN Frames:       0    FECN Ratio (%)    0
    Minutes Congested: --          BECN Frames:       0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.1.251 1
    

Lab 7: SIW-AFTF Transparent Connection

This lab builds a Service Interworking connection using transparent mode between the 2612-7b ATM interface, and the 3810-7b Frame Relay interface, with the following parameters:

  • ATM requirements:

    • ATFX connection type

    • VPI 1/253 on ATM side

    • 1 MB PVC

    • No policing

  • Frame Relay requirements:

    • DLCI = 252

    • 1 MB PVC

    • LMI signaling of Cisco/Stratacom

  1. Configure the line and ports on both sides as described in the introduction of this section.

  2. Refer to the Frame Relay section for Frame Relay interface configuration steps.

  3. Use the addcon command to add the SIW ATFX connection from IGX-B to 3810-7b Frame Relay:

    addcon 13.3.1.253 IGX-A 13.1.252 atft 2667 100 250000 2667 1000 5 1280 35 5
    
  4. Use the dspcon command to verify your configuration:

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:58 EST 
    
    Conn:  13.3.1.253        IGX-A    13.1.252           atft     Status:OK
        PCR(0+1)    % Util    CDVT(0+1)    FBTC       SCR           MBS     PLC
       2667/2667   100/100  250000/250000   y      2667/2667     1000/1000    5
     
    Ownr:LOCAL Restr:NONE COS:0                            FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-B16.3.1--15.3.1IGX-A
    Pref:   Not Configured
     
    IGX-B  UXM:   OK                    IGX-A  UFMU:   OK
              Line 13.3 : OK                         UFI:   OK
              OAM Cell RX: Clear
              NNI:   OK
                                                                                    
    This Command: dspcon 13.3.1.253
    

    Using the dspcon Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:59 EST 
    
    Conn:  13.3.1.253        IGX-A    13.1.252           atft     Status:OK
     
       PCR(0+1)        % Util       CDVT(0+1)            SCR               MBS     
     2667/2667        100/100     250000/250000      2667/2667         1000/1000
     
    Policing    VC Qdepth     EFCI         IBS     
        5      1280/1280     35/35        5/5
                                                                                 
    Last Command: dspcon 13.3.1.253
    

    Using the dspcon Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2002 15:59 EST 
    
    Conn:  13.1.252          IGX-B    13.3.1.253         atft     Status:OK
        MIR         CIR      VC Q Depth     PIR      Cmax   ECN QThresh     QIR    
     1024/1024   1024/1024  61440/61440  1024/1024   10/10  21504/21504  1024/1024
     
    Ownr:REMOTE Restr:NONE COS:0                           FST: n  % Util: 100/100
    Pri: L  Test-RTD: 0 msec
    Path:   IGX-A15.3.1--16.3.1IGX-B
    Pref:   Not Configured
     
    IGX-A  UFMU:   OK                   IGX-B  UXM:   OK
              UFI:   OK                              Line 13.3 : OK
                                                     NNI:   OK
     
    Last Command: dspcon 13.1.252
    

  5. Perform the following router configuration for 2612-7b:

    !
    interface ATM1/0.253 point-to-point
     ip address 26.1.1.2 255.255.255.0
     no ip directed-broadcast
     pvc 1/253 
      vbr-nrt 1000 512 1000
      encapsulation aal5nlpid  
    ! --- Notice that aal5nlpid encapsulation is used.
    
     !
  6. Perform the following router configuration for 3810-7b:

    !
    interface Serial0.200 point-to-point
     ip address 26.1.1.1 255.255.255.0
     no arp frame-relay
     frame-relay interface-dlci 252   
    !
  7. Perform the following ping command test:

    wsw-2612-7b# ping 26.1.1.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 26.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
    wsw-2612-7b# ping 26.1.1.1
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 26.1.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/9/12 ms
  8. Perform the following ping command test:

    wsw-3810-7b# ping 26.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 26.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/7/8 ms
    wsw-3810-7b# ping 26.1.1.2
     
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 26.1.1.2, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/12 ms
  9. Use the dspchstats command to verify traffic on the IGX:

    Using the dspchstats Command
    IGX-B       TN    Cisco           IGX 8420  9.3.35    July 23 2002 16:02 EST 
    
    Channel Statistics: 13.3.1.253
    Collection Time: 0 day(s) 00:00:16                   Clrd:  07/23/02 16:02:04
    Type                                      Count     Traffic       Rate (cps) 
    Cells Received from Port                       45   From port              2
    Cells Tx to Network                            45   To network             2
    Cells Rcvd from Network                        45   From network           2
    Cells Transmitted to Port                      45   To port                2
    EOF Cells Rcvd from Port                       15
    Cells Received with CLP=1                       0
    Cells Received with CLP=0                      45
    Non-Compliant Cells Rcvd                        0
    Avg Rx VCq Depth in Cells                       0
    Average Tx Vcq Depth in Cells                   0
    Ingress Vsvd Allowed Cell Rate                  0
    Egress Vsvd Allowed Cell Rate                   0
                                                                                    
    This Command: dspchstats 13.3.1.253 1
    

    Using the dspchstats Command
    IGX-A       TN    Cisco           IGX 8420  9.3.35    July 23 2002 16:02 EST 
    
    Channel Statistics: 13.1.252      Cleared: July 23 2002 16:01   (|)
    MIR: 1024.1/1024.1 kbps Collection Time: 0 day(s) 00:00:25      Corrupted: NO
                         Frames   Avg Size Avg    Util          Packets     Avg  
                                  (bytes)  (fps)  (%)                      (pps) 
    From Port:               16        118      0    0
    To Network:              16        118      0    0              106         4
    Discarded:                0          0      0    0
    From Network:            15        106      0    0               90         3
    To Port:                 15        106      0    0
    Discarded:                0          0      0    0                0         0
                       ECN Stats:  Avg Rx VC Q:       0    ForeSight RTD    --
    Min-Pk bytes rcvd: --          FECN Frames:       0    FECN Ratio (%)    0
    Minutes Congested: --          BECN Frames:       0    BECN Ratio (%)    0
    Frames rcvd in excess of CIR:       0  Bytes rcvd in excess of CIR:         0
    Frames xmtd in excess of CIR:       0  Bytes xmtd in excess of CIR:         0
                                                                                    
    This Command: dspchstats 13.1.252 1
    

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

Refer to the following documents to troubleshoot your configuration:

Related Information

Updated: Apr 30, 2009
Document ID: 41382