Cisco CRS-1 - Carrier Routing System Router Troubleshooting Manual page 132

Verifying and Troubleshooting Up Fabric Planes
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
7.
DETAILED STEPS
Command or Action
Step 1
admin
Example:
RP/0/RP0/CPU0:router#
Step 2
show controllers fabric link port s2rx all |
include UP.*DOWN.*SM
show controllers fabric link port s3rx all |
include UP.*DOWN.*SM
show controllers fabric link port s2tx all |
include UP.*DOWN.*SM
show controllers fabric link port s3tx all |
include UP.*DOWN.*SM
Example:
RP/0/RP0/CPU0:router(admin)# show controllers
fabric link port s2rx all | include
UP.*DOWN.*SM
RP/0/RP0/CPU0:router(admin)# show controllers
fabric link port s3rx all | include
UP.*DOWN.*SM
RP/0/RP0/CPU0:router(admin)# show controllers
fabric link port s2tx all | include
UP.*DOWN.*SM
RP/0/RP0/CPU0:router(admin)# show controllers
fabric link port s3tx all | include
UP.*DOWN.*SM
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
4-122
admin
show controllers fabric link port s2rx all | include UP.*DOWN.*SM
show controllers fabric link port s3rx all | include UP.*DOWN.*SM
show controllers fabric link port s2tx all | include UP.*DOWN.*SM
show controllers fabric link port s3tx all | include UP.*DOWN.*SM
show controllers fabric link port s2rx all statistics | exclude \ 0 +0 +0$
show controllers fabric link port s3rx all statistics | exclude \ 0 +0 +0$
config
controllers fabric link port {s1rx | s1tx | s2rx | s2tx | s3rx | s3tx} location link-id shutdown
Reload the fabric card.
Clean and reconnect the fiber-optic connectors (Cisco CRS-1 Multishelf Systems).
admin
Chapter 4
Purpose
Enters administration executive (admin EXEC) mode.
Displays the link state of a fiber port. The command output
shows interchassis link ports that are operationally down,
excluding those that are administratively down and those
that are completely disconnected.
Repeat this command for each stage and direction and
check if a fabric port link is down (ADMIN UP and OPER
DOWN).
The following down flags may be displayed:
l—Link is down
•
o—Downed link port due to the other end of the link
•
being down
a—ASIC is down
•
A or L—ASIC (A) or link (L) is administratively shut
•
down
If the link state of a fabric port is down, proceed to
to shut down the link.
Troubleshooting Router Switch Fabric
Step 5
OL-21483-02