Juniper PTX5000 Hardware Manual page 631

Problem
Description
The switch fabric in the PTX5000 includes the SIBs and the FPCs. A link that is in a down or error state
indicates a problem with the switch fabric.
Solution
To troubleshoot the switch fabric:
1. Verify that all nine SIBs and all installed FPCs are online. Use the show chassis fabric summary command
to check for errors.
user@host> show chassis fabric summary
FRU State
SIB0 Online
SIB1 Online
SIB2 Online
SIB3 Online
SIB4 Online
SIB5 Online
SIB6 Online
SIB7 Online
SIB8 Online
FPC0 Empty
FPC1 Empty
FPC2 Online
FPC3 Empty
FPC4 Empty
FPC5 Online
FPC6 Empty
FPC7 Online
If a SIB or FPC is Offline, see
"Troubleshooting the PTX5000 Switch Interface Boards" on page 616
proceeding.
2. Use the show chassis fabric topology command to query the state of the links between the SIBs and
FPCs.
Errors
None
None
None
None
None
None
None
None
None
None
None
None
"Troubleshooting the PTX5000 FPCs" on page 620 and
to correct the problem before
613