Troubleshooting The Ptx5000 Switch Fabric - Juniper PTX5000 Hardware Manual

Packet transport router

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PTX5000 Packet Transport Router Hardware Guide

Troubleshooting the PTX5000 Switch Fabric

Description: The switching plane in the PTX5000 packet transport router consist of the

SIBs and the FPCs. A link that is in a down or error state indicates a problem with the

switching planes.

To troubleshoot the switching planes:

Verify that all nine SIBs and all installed FPCs are online. Use the

command to check for errors.

user@host> show chassis fabric summary

If a SIB or FPC is

"Troubleshooting the PTX5000 Switch Interface Boards" on page 548

problem before proceeding.

show chassis fabric topology

the SIBs and FPCs.

For an FPC and a SIB that are online, the

an FPC and a SIB is powered down. The

that an FPC or a SIB is offline.

state indicates that the link between an FPC and a SIB is not operational.

The partner link may be in the

replace the FPC and SIB with a spare to determine if the fault follows the FPC or

SIB. After removing an FPC or a SIB, inspect the FPC or SIB connectors for bent pins.

If the FPC or SIB is faulty, return it. Before installing a spare FPC or SIB, use a

flashlight to inspect the midplane for bent pins. If any pins on the midplane appear

to be bent, contact JTAC immediately.

"Troubleshooting the PTX5000 FPCs" on page 526

command to query the state of the links between

state indicates that the link between

state for the links can also indicate

state. If the state of the link is

show chassis fabric

to correct the

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