Cisco 12810 Specifications download pdf (Page 22)

Cisco 12010, Cisco 12410, and Cisco 12810 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

OL-13810-01

Troubleshooting the Switch Fabric

Post-Upgrade Considerations

After performing an upgrade and verifying its installation, there are some post-upgrade considerations.

• Cisco 12000 Series routers include a label on the side of the chassis that indicates the model of the

router. The switch fabric upgrade kit does not include a new label to identify the upgraded router

model. For example, if you upgrade a Cisco 12410 Router to a Cisco 12810 Router, the label on the

side of the chassis still identifies the chassis as a Cisco 12410 Router. Cisco recommends that you

take the necessary administrative steps to properly identify an upgraded router.

• The alternative methods for identifying an upgraded router are through the label on the switch fabric

cards or through Cisco IOS software, using the show gsr command. Table 2 lists the router model

and the number on the corresponding switch fabric card identification labels.

Troubleshooting the Switch Fabric

This section describes the procedures needed to troubleshoot problems with the switch fabric. The RP

and the line cards connect through the crossbar switch fabric, which provides a high-speed physical path

for most inter-card communication. Among the messages passed between the RP and the line cards over

the switch fabric are, actual packets being routed and received, forwarding information, traffic statistics,

and most management and control information. This information is useful in diagnosing

hardware-related failures.

Note This section is recommended only for advanced Cisco IOS software operators and system administration

personnel. Refer to the appropriate Cisco IOS software publications for detailed Cisco IOS information.

To troubleshoot the switch fabric, follow these steps:

Step 1 Collect the needed data from the RPs and line cards.

Note When you connect to the line card, use the attach command. The execute-on command is

dependent upon the inter-process communication (IPC) which operates over the switch fabric.

If you are having problems with IPC, the commands that run remotely through the switch fabric

can time out. The attach <slot #> command travels over the MBus and not the IPC.

Step 2 Use the show controllers fia command on the primary and secondary RPs and save the output.

Step 3 Use the attach <slot #> command to access a line card.

Step 4 Use the show controllers fia command on all installed line cards and save the output from each.

Table 2 Identifying Switch Fabric Cards

Router Model Switch Fabric Card Identification Label

Cisco 12010 Router SFC-50 and CSC-50

Cisco 12410 Router SFC-200 & CSC-200

Cisco 12810 Router SFC-800 & CSC-800

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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Cisco 12810 Specifications Page 22