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ATM Switch Router Software Configuration Guide, 12.1(6)EY
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Preface
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Product Overview
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Understanding the User Interface
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Initially Configuring the ATM Switch Router
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Configuring System Management Functions
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Configuring ATM Network Interfaces
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Configuring Virtual Connections
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Configuring Operation, Administration, and Maintenance
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Configuring Resource Management
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Configuring ILMI
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Configuring ATM Routing and PNNI
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Using Access Control
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Configuring IP over ATM
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Configuring LAN Emulation
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Configuring ATM Accounting and ATM RMON
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Configuring Tag Switching
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Configuring Signalling Features
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Configuring Interfaces
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Configuring Circuit Emulation Services
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Configuring Frame Relay to ATM Interworking Port Adaper Interfaces
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Configuring IMA Port Adapter Interfaces
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Configuring ATM Router Module Interfaces
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Managing Configuration Files, System Images, and Functional Images
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PNNI Migration Examples
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Acronyms
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Index
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Table Of Contents
Initially Configuring the ATM Switch Router
Methods for Configuring the ATM Switch Router
Terminal Line Configuration (Catalyst 8540 MSR)
Terminal Line Configuration (Catalyst 8510 MSR and LightStream 1010)
Verifying Software and Hardware Installed on the ATM Switch Router
Manually Setting the ATM Address
Modifying the Physical Layer Configuration of an ATM Interface
Configuring IP Address and Subnet Mask Bits
Testing the Ethernet Connection
Configuring Network Clock Sources and Priorities (Catalyst 8540 MSR)
Configuring Network Clock Sources and Priorities (Catalyst 8510 MSR and LightStream 1010)
Configuring the Transmit Clocking Source
Configuring Network Clocking with NCDP
Network Clock Services for CES Operations and CBR Traffic
Configuring ATM Static Routes for IISP or PNNI
Configuring System Information
Configuring Online Diagnostics (Catalyst 8540 MSR)
Access Test (Catalyst 8540 MSR)
Snake Test (Catalyst 8540 MSR)
Configuring Online Diagnostics (Catalyst 8540 MSR)
Configuring Redundancy and Enhanced High System Availability (Catalyst 8540 MSR)
Route Processor Redundant Operation (Catalyst 8540 MSR)
Synchronizing the Configurations (Catalyst 8540 MSR)
Displaying the Route Processor Redundancy Configuration (Catalyst 8540 MSR)
Preparing a Route Processor for Removal (Catalyst 8540 MSR)
Configuring Switch Fabric Enhanced High System Availability Operation (Catalyst 8540 MSR)
Displaying the Switch Processor EHSA Configuration (Catalyst 8540 MSR)
Confirming the Hardware Configuration (Catalyst 8540 MSR)
Confirming the Hardware Configuration (Catalyst 8510 MSR and LightStream 1010)
Confirming the Software Version
Confirming Power-on Diagnostics
Confirming the Ethernet Configuration
Testing the Ethernet Connection
Confirming the ATM Connections
Confirming the ATM Interface Configuration
Confirming the Interface Status
Confirming Virtual Channel Connections
Confirming the Running Configuration
Confirming the Saved Configuration
Initially Configuring the ATM Switch Router
This chapter discusses specific steps used to initially configure the ATM switch router.
Note
This chapter provides advanced configuration instructions for the Catalyst 8540 MSR, Catalyst 8510 MSR, and LightStream 1010 ATM switch routers. For conceptual and background information, refer to the Guide to ATM Technology. For complete descriptions of the commands mentioned in this chapter, refer to the ATM Switch Router Command Reference publication.
This chapter includes the following sections:
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Methods for Configuring the ATM Switch Router
The ATM switch router defaults to a working configuration suitable for most networks. However, you might need to customize the configuration for your network.
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Terminal Line Configuration (Catalyst 8540 MSR)
The Catalyst 8540 MSR has a console terminal line that might require configuration. For line configuration, you must first set up the line for the terminal or the asynchronous device attached to it. For a complete description of configuration tasks and commands used to set up your terminal line and settings, refer to the Configuration Fundamentals Configuration Guide and Dial Solutions Configuration Guide.
You can connect a modem to the console port. The following settings on the modem are required:
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You can configure your modem by setting the DIP switches on the modem or by connecting the modem to terminal equipment. Refer to the user manual provided with your modem for the correct configuration information.
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Terminal Line Configuration (Catalyst 8510 MSR and LightStream 1010)
The ATM switch has two types of terminal lines: a console line and an auxiliary line. For line configuration, you must first set up the lines for the terminals or other asynchronous devices attached to them. For a complete description of configuration tasks and commands used to set up your lines, modems, and terminal settings, refer to the Configuration Fundamentals Configuration Guide and Dial Solutions Configuration Guide.
Configuration Prerequisites
Consider the following information you might need before you configure your ATM switch router:
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Verifying Software and Hardware Installed on the ATM Switch Router
When you first power up your console and ATM switch router, a screen similar to the following from a Catalyst 8540 MSR appears:
Restricted Rights LegendUse, duplication, or disclosure by the Government issubject to restrictions as set forth in subparagraph(c) of the Commercial Computer Software - RestrictedRights clause at FAR sec. 52.227-19 and subparagraph(c) (1) (ii) of the Rights in Technical Data and ComputerSoftware clause at DFARS sec. 252.227-7013.cisco Systems, Inc.170 West Tasman DriveSan Jose, California 95134-1706Cisco Internetwork Operating System SoftwareIOS (tm) PNNI Software (cat8540m-WP-M), Version 12.0(4a)W5(10.44), INTERIM TESTSOFTWARECopyright (c) 1986-1999 by cisco Systems, Inc.Compiled Tue 17-Aug-99 03:18 byImage text-base: 0x60010930, data-base: 0x60936000CUBI Driver subsystem initializing ...primary interrupt reg read FFC00secondary interrupt reg read EA800*** this cpu is the primaryEnabling the MS timerSwitch Fabric Driver subsystem initializing ...foundsmid=0smid=2smid=4smid=6smid=1smid=3smid=5smid=7in cfc_init... DONEIDPROM in slot 0 not properly programmedcisco C8540MSR (R5000) processor with 262144K bytes of memory.R5000 processor, Implementation 35, Revision 2.1 (512KB Level 2 Cache)Last reset from power-on3 Ethernet/IEEE 802.3 interface(s)11 ATM network interface(s)507K bytes of non-volatile configuration memory.20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).8192K bytes of Flash PCMCIA card at slot 1 (Sector size 128K).8192K bytes of Flash internal SIMM (Sector size 256K).%ENABLING INTERFACES.PLEASE WAIT...%Secondary CPU has not booted IOSPress RETURN to get started!
Note
rommon>prompt appears, your switch requires a manual boot to recover. Refer to the Configuration Fundamentals Configuration Guide for instructions on manually booting from Flash memory.
Configuring the BOOTP Server
The BOOTP protocol automatically assigns an Ethernet IP address by adding the MAC and IP addresses of the Ethernet port to the BOOTP server configuration file. When the switch boots, it automatically retrieves the IP address from the BOOTP server.
The switch performs a BOOTP request only if the current IP address is set to 0.0.0.0. (This is the default for a new switch or a switch that has had its startup-config file cleared using the erase command.)
To allow your ATM switch router to retrieve its IP address from a BOOTP server, you must first determine the MAC address of the switch and add that MAC address to the BOOTP configuration file on the BOOTP server. The following steps provide an example of creating a BOOTP server configuration file:
Example
The following example BOOTP configuration file shows the added entry:
# /etc/bootptab: database for bootp server (/etc/bootpd)## Blank lines and lines beginning with '#' are ignored.## Legend:## first field -- hostname# (may be full domain name and probably should be)## hd -- home directory# bf -- bootfile# cs -- cookie servers# ds -- domain name servers# gw -- gateways# ha -- hardware address# ht -- hardware type# im -- impress servers# ip -- host IP address# lg -- log servers# lp -- LPR servers# ns -- IEN-116 name servers# rl -- resource location protocol servers# sm -- subnet mask# tc -- template host (points to similar host entry)# to -- time offset (seconds)# ts -- time servers#<information deleted>########################################################################### Start of individual host entries#########################################################################Switch: tc=netcisco0: ha=0000.0ca7.ce00: ip=172.31.7.97:
dross: tc=netcisco0: ha=00000c000139: ip=172.31.7.26:<information deleted>Configuring the ATM Address
The ATM switch router ships with a preconfigured ATM address. The Integrated Local Management Interface (ILMI) protocol uses the first 13 bytes of this address as the switch prefix that it registers with end systems. Autoconfiguration also allows the ATM switch router to establish itself as a node in a single-level Private Network-Network Interface (PNNI) routing domain.
Note
For a description of the autoconfigured ATM address and considerations when assigning a new address, refer to the Guide to ATM Technology.
Manually Setting the ATM Address
To configure a new ATM address that replaces the previous ATM address when running IISP software only, see the "Configuring the ATM Address" section .
To configure a new ATM address that replaces the previous ATM address and generates a new PNNI node ID and peer group ID, see the "Configuring an ATM Address and PNNI Node Level" section .
Modifying the Physical Layer Configuration of an ATM Interface
Each of the ATM switch router's physical interfaces has a default configuration, listed in "Configuring Interfaces" You can accept the defaults, or you can override them by reconfiguring the physical interface.
The following example describes modifying an OC-3c interface from the default settings to the following:
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To change the configuration of the example interface, perform the following steps, beginning in global configuration mode:
Example
The following example shows how to disable cell-payload scrambling and STS-stream scrambling and changes the SONET mode of operation to Synchronous Digital Hierarchy/Synchronous Transfer Module 1 (SDH/STM-1) of OC-3c physical interface ATM 0/0/0:
Switch(config)# interface atm 0/0/0Switch(config-if)# no scrambling cell-payloadSwitch(config-if)# no scrambling sts-streamSwitch(config-if)# sonet stm-1To change any of the other physical interface default configurations, refer to the commands in the ATM Switch Router Command Reference publication.
To display the physical interface configuration, use the following privileged EXEC commands:
show controllers atm card/subcard/port
Shows the physical layer configuration.
more system:running-config
Shows the physical layer scrambling configuration.
Examples
The following example demonstrates using the show controllers command to display the OC-3c physical interface configuration after modification of the defaults:
Switch# show controllers atm 0/0/0IF Name: ATM0/0/0 Chip Base Address: A8808000Port type: 155UTP Port rate: 155 Mbps Port medium: UTPPort status:SECTION LOS Loopback:None Flags:8300TX Led: Traffic Pattern RX Led: Traffic Pattern TX clock source: network-derivedFraming mode: stm-1Cell payload scrambling offSts-stream scrambling off<information deleted>The following example displays the OC-3c physical layer scrambling configuration after modification of the defaults using the more system:running-config command:
Switch# more system:running-config!version XX.X<information deleted>!interface ATM0/0/0no keepaliveatm manual-well-known-vcatm access-group tod1 inatm pvc 0 35 rx-cttr 3 tx-cttr 3 interface ATM0 0 any-vci encap qsaalsonet stm-1no scrambling sts-streamno scrambling cell-payload!<information deleted>Configuring the IP Interface
IP addresses can be configured on the multiservice route processor interfaces. Each IP address is configured for one of the following types of connections:
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To configure the switch to communicate via the Ethernet interface, provide the IP address and subnet mask bits for the interface.
This section includes the following:
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Configuring IP Address and Subnet Mask Bits
Define subnet mask bits as a decimal number between 0 and 22 for Class A addresses, between 0 and 14 for Class B addresses, or between 0 and 6 for Class C addresses. Do not specify 1 as the number of bits for the subnet field. That specification is reserved by Internet conventions.
To configure the IP address, perform the following steps, beginning in global configuration mode:
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Example
The following example shows how to configure interface ethernet 0 with IP address 172.20.40.93 and subnetwork mask 255.255.255.0:
Switch(config)# interface ethernet 0Switch(config-if)# ip address 172.20.40.93 255.255.255.0Displaying the IP Address
To display the IP address configuration, use the following privileged EXEC commands:
show interfaces ethernet 0
Displays the Ethernet interface IP address.
more system:running-config
Shows the physical layer scrambling configuration.
Examples
The following example shows how to use the show interfaces command to display the IP address of interface ethernet 0:
Switch# show interfaces ethernet 0Ethernet0 is up, line protocol is upHardware is SonicT, address is 0040.0b0a.1080 (bia 0040.0b0a.1080)Internet address is 172.20.40.93/24<information deleted>The following example uses the more system:running-config command to display the IP address of interface ethernet 0:
Switch# more system:running-config!version XX.X<information deleted>!interface Ethernet0ip address 172.20.40.93 255.255.255.0!<information deleted>Testing the Ethernet Connection
After you have configured the IP address(es) for the Ethernet interface, test for connectivity between the switch and a host. The host can reside anywhere in your network. To test for Ethernet connectivity, use the following EXEC command:
ping ip ip-address
Tests the configuration using the ping command. The ping command sends an echo request to the host specified in the command line.
The following example show how to test the Ethernet connectivity from the switch to a workstation with an IP address of 172.20.40.201:
Switch# ping ip 172.20.40.201Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.20.40.201, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 1/202/1000 msConfiguring Network Clocking
This section describes network clocking configuration of the ATM switch router. Properly synchronized network clocking is important in the transmission of constant bit rate (CBR) and variable bit rate real time (VBR-RT) data. For an overview of network clocking and network clock configuration issues, refer to the chapter "Network Clock Synchronization" in the Guide to ATM Technology.
This section includes the following:
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Network Clocking Features
Different types of network clock sources are available on the ATM switch router, both internal and external. Table 3-1 provides a summary of network clocking features.
Table 3-1 Network Clocking Feature Summary
ClockCatalyst 8540 MSR with network clock module
Yes
Yes
Yes
Yes
Yes
Best
Catalyst 8510 MSR
Yes
Yes
Yes
No
No
Medium
LightStream 1010 with FC-PFQ
Yes
Yes
Yes
No
No
Medium
Catalyst 8540 MSR without network clock module
Yes
No
No
No
No
Poor
LightStream 1010 without FC-PFQ
Yes
No
No
No
No
Poor
1 BITS = Building Integrated Timing Supply
Configuring Network Clock Sources and Priorities (Catalyst 8540 MSR)
To configure the network clocking priorities and sources, use the following command in global configuration mode:
network-clock-select {priority {{atm | cbr} card/subcard/port} | bits {0 | 1} | system} |
bits {e1 | t1} | revertiveConfigures the network clock priority.
Note
Systems equipped with the network clock module can derive clocking from a Building Integrated Timing Supply (BITS) source. To specify the line type attached to the BITS ports on the network clock module and to assign a priority to a port, use the following commands in global configuration mode:
network-clock-select bits {t1 | e1}
Selects the line type. This command applies to both BITS ports.
network-clock-select priority bits {0 | 1}
Selects the priority for a BITS port.
Examples
The following example shows how to configure the network clock priorities:
Switch(config)# network-clock-select 1 atm 0/0/0Switch(config)# network-clock-select 2 atm 0/0/3
Note
The following example shows how to configure the network clock to revert to the highest priority clock source after a failure and takeover by the source with the next lowest priority.
Switch(config)# network-clock-select revertiveConfiguring Network Clock Sources and Priorities (Catalyst 8510 MSR and LightStream 1010)
To configure the network clocking priorities and sources, use the following command in global configuration mode:
network-clock-select {priority {{atm | cbr} card/subcard/port} | system} | revertive
Configures the network clock priority.
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Examples
The following example shows how to configure the network clock priorities:
Switch(config)# network-clock-select 1 atm 0/0/0Switch(config)# network-clock-select 2 atm 0/0/3The following example shows how to configure the network clock to revert to the highest priority clock source after a failure and takeover by the source with the next lowest priority.
Switch(config)# network-clock-select revertiveConfiguring the Transmit Clocking Source
To configure where each interface receives its transmit clocking, perform the following steps, beginning in global configuration mode:
Caution
Example
The following example configures ATM interface 3/0/0 to receive its transmit clocking from a network-derived source:
Switch(config)# interface atm 3/0/0Switch(config-if)# clock source network-derivedDisplaying the Network Clocking Configuration
To show the switch's network clocking configuration, use the following privileged EXEC commands:
Examples
The following example shows the configured network clock sources on a Catalyst 8510 MSR or LightStream 1010:
Switch# show network-clocksclock configuration is NON-RevertivePriority 1 clock source: ATM1/0/0Priority 2 clock source: ATM1/1/0Priority 3 clock source: No clockPriority 4 clock source: No clockPriority 5 clock source: System clockCurrent clock source:System clock, priority:5
Note
The following example shows the switch clock source configuration with the network clock module installed:
Switch# show network-clocksNetwork clocking information:---------------------------------------Source switchover mode: revertiveNetclkd state: ActiveSource selection method: provisionedNCLKM hardware status: installed & usableNCLKM status: software enabledPrimary clock source: ATM0/0/0Secondary clock source: not configuredPresent clock source: NCLKM Stratum 3 osc (0)The following example shows the clock source configuration stored in the running configuration:
Switch# more system:running-config!<information deleted>!network-clock-select revertivenetwork-clock-select 1 ATM0/0/0<information deleted>Configuring Network Clocking with NCDP
The Network Clock Distribution Protocol (NCDP) provides a means by which a network can synchronize automatically to a primary reference source (PRS). To do so, NCDP constructs and maintains a spanning network clock distribution tree. This tree structure is superimposed on the network nodes by the software, resulting in an efficient, synchronized network suitable for transport of traffic with inherent synchronization requirements, such as voice and video.
The following sections provide instructions for configuring NCDP. For a description of how NCDP works, refer to the Guide to ATM Technology.
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NCDP Network Example
Figure 3-1 shows a network of six ATM switch routers with clocking derived from a stratum 3 PRS. Node A is configured to receive priority 1 clocking on two of its ports, while node B is configured to receive priority 2 clocking on one of its ports.
Figure 3-1 Network Configuration for NCDP
Enabling NCDP
To enable NCDP, use the following global configuration command for each node that you want to configure for NCDP:
Configuring Network Clock Sources and Priorities
You must specify the clocking sources, their priorities, and associated stratums used by NCDP in constructing the clock distribution tree. To do so, use the following command in global configuration mode:
ncdp source priority {{atm | cbr} card/subcard/port stratum | bits1 {0 | 1} stratum | system}
Specifies a priority and source (stratum level or system) for this interface.
1 Allows you to specify a Building Integrated Timing Supply (BITS) source. This option is available only on the Catalyst 8540 MSR equipped with the network clock module.
If you do not configure a clock source, NCDP advertises its default source of network clock, which is its local oscillator; if no nodes in the network have a clock source configured, the tree is built so that it is rooted at the switch having the highest stratum oscillator (lowest numerical value) and lowest ATM address.
Example
The following example demonstrates configuring the network clock source, priority, and stratum on node A in Figure 3-1.
Switch(config)# ncdp source 1 atm 1/0/0 3Switch(config)# ncdp source 1 atm 3/0/0 3Configuring Optional NCDP Global Parameters
Optional NCDP parameters you can configure at the global level include the maximum number of hops between any two nodes, revertive behavior, and the values of the NCDP timers. To change any of these parameters from their defaults, use the following commands in global configuration mode:
When you specify a maximum diameter, you constrain the diameter of the spanning tree by specifying the maximum number of hops between any two nodes that participate in the protocol. Each node must be configured with the same maximum network diameter value for NCDP to operate correctly.
When you configure the NCDP as revertive, a clock source that is selected and then fails is selected again once it has become operational for a period of time. On the Catalyst 8510 MSR and LightStream 1010 platforms, if NCDP is configured to be revertive, a failed clocking source node after a switchover is restored to use after it has been functioning correctly for at least 1 minute. On the Catalyst 8540 MSR the failed source is restored after about 25 seconds. The network clock is, by default, configured as nonrevertive. Nonrevertive prevents a failed source from being selected again.
Example
The following example shows setting the maximum number of hops to 11 and enabling revertive behavior:
Switch(config)# ncdp max-diameter 11Switch(config)# ncdp revertiveConfiguring Optional NCDP Per-Interface Parameters
On a per-interface basis, you can enable or disable NCDP, specify the cost metric associated with the port, and change the control virtual circuit used to transport protocol messages between adjacent protocol entities. To change any of these parameters from their defaults, use the following commands in interface configuration mode:
Example
The following example demonstrates setting the administrative weight on an interface:
Switch(config)# interface atm 0/0/0Switch(config-if)# ncdp admin-weight 75Displaying the NCDP Configuration
To display the NCDP configuration, use the following EXEC commands:
Example
The following example shows the NCDP status:
Switch# show ncdp status= ncdp switch information ==== enabled ==============non-revertiveroot clock source priority: 1root clock source stratum level: 4root clock source prs id: 255stratum level of root switch: 4clocking root address: 4700918100000000E0F75D040100E0F75D040100hop count: 0root path cost: 0root port: 0max age: 5hello time: 500priority of best source: 1stratum level of best source: 4prs id of best source: 255switch stratum level: 4address: 4700918100000000E0F75D040100E0F75D040100switch max age: 5switch hello time: 500switch hold time: 500max diameter: 5converged root count: 359375converged: 1total timer events: 687271total queue events: 0rx config messages: 0tx config messages: 363716rx tcn messages: 0tx tcn messages: 0rx non-participant messages: 0rx unknown messages: 0Switch#Network Clock Services for CES Operations and CBR Traffic
Circuit emulation services-interworking functions (CES-IWF) and constant bit rate (CBR) traffic relate to a quality of service (QoS) classification defined by the ATM Forum for Class A (ATM adaptation layer 1 [AAL1]) traffic in ATM networks. In general, Class A traffic pertains to voice and video transmissions, which have particular clocking requirements. For details, refer to "Configuring Circuit Emulation Services"
Configuring Network Routing
The default software image for the ATM switch router contains the Private Network-Network Interface (PNNI) routing protocol. The PNNI protocol provides the route dissemination mechanism for complete plug-and-play capability. The following section, " Configuring ATM Static Routes for IISP or PNNI," describes modifications that can be made to the default PNNI or Interim-Interswitch Signalling Protocol (IISP) routing configurations.
For routing protocol configuration information, refer to "Configuring ILMI,"and "Configuring ATM Routing and PNNI"
Configuring ATM Static Routes for IISP or PNNI
Static route configuration allows ATM call setup requests to be forwarded on a specific interface if the addresses match a configured address prefix. To configure a static route, use the following command in global configuration mode:
atm route addr-prefx atm card/subcard/port
Specifies a static route to a reachable address prefix.
Note
The following example shows how to use the atm route command to configure the 13-byte peer group prefix = 47.0091.8100.567.0000.0ca7.ce01 at interface ATM 3/0/0:
Switch(config)# atm route 47.0091.8100.567.0000.0ca7.ce01 atm 3/0/0Switch(config)#Configuring System Information
Although not required, the system clock and hostname should be set as part of the initial system configuration. To set these system parameters, perform the following steps, beginning in privileged EXEC mode:
Examples
The following example shows how to configure the time, date, and month using the clock set command, enter global configuration mode, and assign a hostname.
Switch# clock set 15:01:00 17 October 1999Switch# configure terminalEnter configuration commands, one per line. End with CNTL/Z.Switch(config)# hostname PublicationsPublications#The following example shows how to confirm the clock setting using the show clock command:
Publications# show clock*15:03:12.015 UTC Fri Oct 17 1999Configuring Online Diagnostics (Catalyst 8540 MSR)
Online and insertion diagnostics detect and report hardware failures in the Catalyst 8540 MSR during system bootup and operation.
The online diagnostics on the Catalyst 8540 MSR provide the following types of tests:
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Access Test (Catalyst 8540 MSR)
The access tests ensure connectivity at a configurable interval between the primary route processor and the following:
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When the access test detects a hardware failure, the system issues an error message to the console.
If the access test detects a hardware problem with an active switch processor, the standby switch processor, if it is present, automatically takes over and becomes an active switch processor. The system generates an SNMP trap when the switchover occurs.
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OIR Test (Catalyst 8540 MSR)
Online insertion and removal (OIR) tests check the functioning of the switch fabric and interfaces on a per-port basis. The switch router performs these tests when the system boots up and when you insert a port adapter or interface module into a slot. The OIR test sends a packet to the interface loopback and expects to receive it back within a certain time period. If the packet does not reach the port within the expected time period, or the route processor receives a corrupted packet, the system issues an error message to the console, generates an SNMP trap, and brings the port to an administrative down state.
Note
The OIR tests support all ATM port adapters, all ATM interface modules, all ATM router modules, and all Layer 3 interface modules except the 8-port Gigabit Ethernet.
Snake Test (Catalyst 8540 MSR)
The snake test detects and reports port-to-port connectivity failures. The snake test establishes a connection across all the active ports in the switch router, originating and terminating at the primary route processor. The route processor establishes a connection by sending a packet to each port in turn, which then terminates at the route processor. If the packet does not reach the route processor within the expected time period, or the received packet is corrupted, further testing is performed to isolate and disable the port causing the problem.The size of the packet and frequency of the test are configurable to minimize the impact on system performance.
The snake test supports all ATM interface modules and enhanced Gigabit Ethernet interface modules. It does not support ATM port adapters, ATM router modules, 16-port 10/100 Fast Ethernet interface modules, 2-port Gigabit Ethernet interface modules, or 8-port Gigabit Ethernet interface modules.
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Configuring Online Diagnostics (Catalyst 8540 MSR)
To configure online diagnostics, use the following global configuration commands:
Examples
The following example shows how to enable all online diagnostic tests:
Switch(config)# diag onlineONLINE-DIAG: Enabling all Online Diagnostics testsThe following example shows how to change the frequency of the access test to 20 seconds:
Switch(config)# diag online access freq 20ONLINE-DIAG: Online Access Test Frequency set to 20 secDisplaying the Online Diagnostics Configuration and Results (Catalyst 8540 MSR)
To display the online diagnostics configuration and results, use the following EXEC command:
show diag online [details | status] [access | oir | snake]
Displays information about the online diagnostics test configuration and the test results.
Examples
The following example shows how to display detailed access test configuration and results:
Switch# show diag online details access======== Online Access Test Details ========Current Test Status : Test is EnabledCurrent Frequency of Access Test : 20 secondsSlot Card-Type Iteration Success Failure Last Failure---- ---------- ---------- ------- ------- ------------0/* Super Cam 42998 42998 0 ----0/0 8T1 IMA PAM 42998 42998 0 ----0/1 8E1 IMA PAM 42998 42998 0 ----2/* ARM PAM 42998 42998 0 ----3/* ETHERNET PAM 42998 42998 0 ----5/* Switch Card 42998 42998 0 ----5/0 Feature Card 42998 42998 0 ----7/* Switch Card 42998 42998 0 ----7/0 Feature Card 42998 42998 0 ----9/* OC48c PAM 42998 42998 0 ----10/* OCM Board 42998 42998 0 ----10/0 QUAD 622 Generi 42998 42998 0 ----======== Online Access Test Details End ========The following example shows how to display the status of the OIR test:
Switch# show diag online status oir======== Online OIR Test Status ========Current Test Status : Test is Enabled-------- Bootup OIR status --------Port Card Type Pkt Size Result Test Time LOOP_______ ___________ _________ ________________
