Troubleshooting the PTX5000 Switch Fabric
Problem The switching plane in the PTX5000 transport packet switch consist of the SIBs and the
FPCs.
The following indicate a problem with the switching planes:
• The output for the show chassis fabric topology command shows that the state of an
online FPC or SIB link is Error. The partner link may be in the Down or OK state.
NOTE: The links for an offline FPC or SIB will also be in the Down state.
Solution To troubleshoot the switching planes:
1. Verify that all nine SIBs and all installed FPCs are online.
2. Use the show chassis fabric summary command to check for errors.
user@host> show chassis fabric summary
FRU State Errors
SIB0 Online None
SIB1 Online None
SIB2 Online None
SIB3 Online None
SIB4 Online None
SIB5 Online None
SIB6 Online None
SIB7 Online None
SIB8 Online None
FPC0 Empty
FPC1 Empty
FPC2 Online None
FPC3 Empty
FPC4 Empty
FPC5 Online None
FPC6 Empty
FPC7 Online None
3. Use the show chassis fabric summary command to check for
user@host> show chassis fabric plane-location
-Fabric Plane Locations-
SIB Planes
0 0 1
1 2 3
2 4 5
3 6 7
4 8 9
5 10 11
6 12 13
7 14 15
8 16 17
151Copyright © 2012, Juniper Networks, Inc.
Chapter 14: Troubleshooting Packet Transport Switch Hardware Components
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