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Cisco IOS Software Releases 12.1 Special and Early Deployments

WAN Data Traffic Configuration on Digital T1/E1 Packet Voice Trunk Network Interface Cards

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WAN Data Traffic Configuration on Digital T1/E1 Packet Voice Trunk Network Modules

Feature Overview

Benefits

Restrictions

Related Features and Technologies

Related Documents

Supported Platforms

Supported Standards, MIBs, and RFCs

Prerequisites

Configuration Tasks

Verifying Controller Settings

Verifying Serial Interface Configuration

Configuration Example

T1 Configuration

E1 Configuration.

Command Reference


WAN Data Traffic Configuration on Digital T1/E1 Packet Voice Trunk Network Modules

This document explains how you can configure digital T1/E1 packet voice trunk network modules on Cisco 2600 and 3600 routers to route Wide Area Network (WAN) data traffic and includes the following sections:

•Feature Overview

•Supported Platforms

•Supported Standards, MIBs, and RFCs

•Prerequisites

•Configuration Tasks

•Configuration Example

•Command Reference

Feature Overview

Cisco digital T1/E1 packet voice trunk network modules support voice and data applications in Cisco 2600 and 3600 series routers. With Cisco IOS release 12.1(2)XH, the digital T1/E1 packet voice trunk network modules provide WAN connections in addition to voice connections and digital cross-connect.

The digital T1/E1 packet voice trunk network modules support T1/E1 applications, including fractional use. The T1 version integrates a fully managed data service unit/channel service unit (DSU/CSU), and the E1 version includes a fully managed DSU. The digital T1/E1 packet voice trunk network modules provide per-channel T1/E1 data rates of 64 kbps for WAN services (Frame Relay or leased line)

Benefits

The ability of the digital T1/E1 packet voice trunk network module to support WAN data traffic in addition to voice traffic has the following benefits:

•Allow an efficient transition from data-only applications to both multiplexed voice and data and packet voice applications.

•Are easier to deploy and manage than single-purpose interfaces.

Because the digital T1/E1 packet voice trunk network module support both WAN data traffic and voice traffic, they provide the following benefits of multifunction support for multiplexed voice and data, and voice:

•The basic interfaces

•Might eliminates the need for external Drop-and-Insert multiplexers.

•Supports multiservice offerings from service providers.

Restrictions

The following restrictions apply to digital T1/E1 packet voice trunk network module configurations:

•On all Cisco 2600 and 3600 platforms, digital T1/E1 packet voice trunk network modules only support T1/E1 Multiflex VWICs.

•Drop-and-Insert capability is supported only between two ports on the same digital T1/E1 packet voice trunk network module.

•Interfaces configured for WAN data traffic cannot be configured as PRI groups.

Related Features and Technologies

Digital T1/E1 Packet Voice Trunk Network Modules requires 2-port T1 Multiflex VWIC for operation. For more information about these modules, see Configuring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers and Digital E1 Packet Voice Trunk Network Module Interfaces.

Related Documents

The following documents provide additional information about installing and configuring digital T1 packet voice trunk network modules:

•Cisco 2600 and 3600 Series Network Module Hardware Installation Guide

•Cisco 2600 and 3600 Series WAN Interface Cards Hardware Installation Guide

•Configuring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers

•Configuring Digital E1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers

The following Cisco IOS Release 12.1 documents provide information that can help you use digital T1 packet voice trunk network modules:

•Multiservice Applications Configuration Guide

•Multiservice Applications Command Reference

•Network Protocols Configuration Guide, Part 1

•Cisco IOS Interface Configuration Guide

•Cisco IOS Interface Command Reference

•Dial Solutions Configuration Guide

Supported Platforms

This feature is supported on the following platforms:

•Cisco 2600 series routers

•Cisco 3600 series routers

Supported Standards, MIBs, and RFCs

Digital T1 packet voice trunk network modules support the standards, MIBs, and RFCs listed in this section.

T1 Compliance (Partial List)

•ANSI T1.403

•US (UL 1950, T1)

•FCC Part 68

•CS-03

•Canada (CSA 950, T1)

•US (FCC Part 15 Class B, T1)

•U.K. (BS6301, EN60950, EN41003)

•Canada (CSA C108.8 Class A, T1)

•Bellcore---AT&T Accunet (62411)

•ATT 54016

•Japan (VCCI Class 2, VCCI:V-3/97.04, T1, JATE Green Book, IEC950)

E1 Compliance (Partial List)

•Australia (TS 016, AS/NZS 3548:1995)

•Germany (TUV GS, EN60950)

•Germany (VDE 0878 part 3 and 30)

•France (NFC98020, EN60950, EN41003)

•Sweden (SS447-2-22, SS636334, EN60950)

•UK (NTR4)

•Europe (EN55022 Class B, EN55102-1, EN55102-2, CTR12, EN60950, EN50082-1:1992, EN55022:1994)

•CCITT/ITU G.704, I.431

•ETSI NET5, ETS300156

•TBR4

•CTR-13

•ETS 300011

•ITU I.431

RFC

RFC 1406

MIB

•T1 CSU MIB

Other Standards

•ANSI T1.40

•AT&T Publication 62411

Prerequisites

Digital T1 packet voice trunk network modules require specific service, software, and hardware:

•Obtain T1 or E1 service from your service provider.

•Install Cisco IOS Software Release 12.1(2)XH, 12.1(3)T or a later release.

•See the following documents for more information about the module:

–Cisco 2600 and 3600 Series Network Module Hardware Installation Guide

–Configuring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers

Note You can install one Digital T1 Packet Voice Trunk Network Module in a Cisco 2600 series router or a Cisco 3620 router. A Cisco 3640 router can support three modules, and you can install as many as six modules in a Cisco 3660 router.

•Establish a working IP network. For more information about configuring IP, see "IP Overview," "Configuring IP Addressing," and "Configuring IP Services" chapters in the Cisco IOS Release 12.1 Cisco IOS IP and IP Routing Configuration Guide.

•Complete your company's dial plan.

•Establish a working telephony network based on your company's dial plan.

Multiservice Applications Configuration Guide and Multiservice Applications Command Reference for Cisco IOS Release 12.1 provide information about setting up voice networks.

Configuration Tasks

Follow this procedure to configure your digital T1 packet voice trunk network module for WAN data traffic. Skip Steps 1 and 2 if you are already in controller configuration mode.

For detailed information about configuring voice ports on a Digital T1/E1 Packet Voice Trunk Network Module, see theConfiguring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers online document and theConfiguring Digital E1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers online document.

Repeat the steps following Step 2 for each controller.

 
Command
Purpose

Step 1  

Router# configure terminal

Skip this step if you are already in controller configuration mode.

Enter global configuration mode.

Step 2  

Router(config)# controller {T1 | E1} slot/port

Skip this step if you are already in controller configuration mode.

Enter controller configuration mode for the T1 or E1 controller at the specified slot/port location.

Step 3  

Router(config-controller)# channel-group 
channel-group-no timeslots timeslot-list [speed 
[48|56|64]]

Enter this command to set up channel groups for WAN data services with a 2-port Multiflex Drop-and-Insert VWIC.

channel-group-no is a value from 0 to 23 for T1 and from 0 to 30 for E1.

timeslot-list is a single number, numbers separated by commas, or a pair of numbers separated by a hyphen to indicate a range of timeslots. The valid range is from 1 to 24 for T1. For E1, the range is from 1 to 31.

The optional speed setting defaults to 56 Kbps for T1 and 64 Kbps for E1.

Step 4  

Router(config-controller)# no shutdown

Activate the controller.

Step 5  

Router(config-controller)# exit

Exit controller configuration mode.

Step 6  

Router(config)# interface serial 
slot/port:channel-group

Enter interface configuration mode for a serial interface that you specify by slot and port. The :channel-group portion of the command is only required for channelized T1 or E1 interfaces; its value is always 0 for Multiflex VWIC support. (For setting up channelized interfaces, see Dial Solutions Configuration Guide for Cisco IOS Release 12.1.)

Step 7  

Router(config-if)# encapsulation {atm-dxi | hdlc | 
frame-relay | ppp | sdlc-primary | sdlc-secondary | 
smds | stun | x25}

Configure synchronous serial encapsulation. See the Dial Solutions Configuration Guide for Cisco IOS Release 12.1 for more information.

Step 8  

Router(config-if)# ip address ip-address mask

Assign the IP address and subnet mask to the interface.

Verifying Controller Settings

Step 1 The privileged EXEC show controllers t1/e1 command displays the status of T1 or E1 controllers and displays information about clock sources and other settings for the ports: 

Router# show controller T1 1/0


T1 1/0 is up.

  Applique type is Channelized T1

  Cablelength is short 133

  Description: T1 WIC card Alpha

  No alarms detected.

  Framing is ESF, Line Code is B8ZS, Clock Source is Line Primary.

  Data in current interval (1 seconds elapsed):

     0 Line Code Violations, 0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Step 2 The privileged EXEC show connection all command displays the status of T1 or E1 controller groups and how they are set up: 

Router# show connection all

ID   Name               Segment 1            Segment 2           State

========================================================================

1    Test              -T1 1/0 01           -T1 1/1 02           ADMIN UP

Verifying Serial Interface Configuration

To verify serial interface configuration, enter the privileged EXEC command show interfaces serial, which shows the status of all serial interfaces or of a specific serial interface, as in the following example. You can use this command to check the encapsulation, IP addressing, and other settings: 

Router #show interface serial0/0:0

Serial0/0:0 is up, line protocol is up 

  Hardware is QUICC Serial

  Internet address is 1.156.1.1/24

  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, 

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation HDLC, loopback not set

  Keepalive not set

  Last input 00:00:00, output 00:00:00, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0 (size/max/drops); Total output drops: 0

  Queueing strategy: weighted fair

  Output queue: 0/1000/64/0 (size/max total/threshold/drops) 

     Conversations  0/1/256 (active/max active/max total)

     Reserved Conversations 0/0 (allocated/max allocated)

  5 minute input rate 1000 bits/sec, 1 packets/sec

  5 minute output rate 1000 bits/sec, 1 packets/sec

     637 packets input, 64736 bytes, 0 no buffer

     Received 181 broadcasts, 0 runts, 5 giants, 0 throttles

     3617 input errors, 1506 CRC, 1646 frame, 0 overrun, 0 ignored, 0 abort

     682 packets output, 67213 bytes, 0 underruns

     0 output errors, 0 collisions, 1070 interface resets

     0 output buffer failures, 0 output buffers swapped out

     13 carrier transitions

     Timeslot(s) Used:1-24, Transmitter delay is 0 flags

Configuration Example

This section shows an example of a digital T1 packet voice trunk network module configured for WAN data traffic.

Note For additional examples, see Configuring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers.

The channel-group 0 command is configured in such a way that the service provider can send Frame-Relay link management information (LMI) on the T1 or E1 controller for Frame-Relay data services. This command automatically creates interface serial 1/0:0.

Interface serial 1/0:0 is where all WAN and Layer 3 protocol details are configured, for example, Frame Relay encapsulation or IP addresses.

T1 Configuration

hostname RTR-A

!

controller T1 1/0

framing esf

linecoding b8zs

channel-group 0 timeslots 1-24

!

interface serial 1/0:0

encapsulation frame-relay

!

interface serial 1/0:1.1

ip address 209.165.200.252 255.255.255.224

frame-relay interface-dlci 100 

!

interface ethernet 0

ip address 209.165.200.250 255.255.255.224

!

router eigrp 1

network 209.165.200.224

!


hostname RTR-B

!

controller T1 1/0

framing esf

linecoding b8zs

channel-group 0 timeslots 1-24

!

interface serial 1/0:0

encapsulation frame-relay

!

interface serial 1/0:1.1

ip address 209.165.200.253 255.255.255.224

frame-relay interface-dlci 100 

!

interface ethernet 0

ip address 209.165.201.1 255.255.255.224

!

router eigrp 1

network 209.165.200.224

network 209.165.201.0

!


E1 Configuration.

hostname RTR-A

!

controller E1 1/0

framing crc4

linecoding hdb3

channel-group 0 timeslots 1-31

!

interface serial 1/0:0

encapsulation frame-relay

!

interface serial 1/0:1.1

ip address 209.165.200.252 255.255.255.224

frame-relay interface-dlci 100 

!

interface ethernet 0

ip address 209.165.200.250 255.255.255.224

!

router eigrp 1

network 209.165.200.224

!


hostname RTR-B

!

controller E1 1/0

framing crc4

linecoding hdb3

channel-group 0 timeslots 1-31

!

interface serial 1/0:0

encapsulation frame-relay

!

interface serial 1/0:1.1

ip address 209.165.200.253 255.255.255.224

frame-relay interface-dlci 100 

!

interface ethernet 0

ip address 209.165.201.1 255.255.255.224

!

router eigrp 1

network 209.165.200.224

network 209.165.201.0

!


Command Reference

New or modified commands are included in the Command Reference section of Configuring Digital T1 Packet Voice Trunk Network Modules on Cisco 2600 and 3600 Series Routers. All other commands used with this feature are documented in the Cisco IOS Release 12.1 command references.