Cisco Systems Cisco IOS XR Manual De Usuario
3-39
Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System
Verifying the Spanning Tree
Verifying the Spanning Tree
When both LCCs and all FCCs are up and running, it is time to verify the spanning tree on the control
network as described in the following procedure.
network as described in the following procedure.
SUMMARY STEPS
1.
admin
2.
show platform
3.
show spantree mst 1 detail location rack/slot/cpu0
DETAILED STEPS
Step 5
On the external Catalyst switches, verify that the links
are not unidirectional.
are not unidirectional.
Verifies that the links from the chassis to the external
Catalyst switches are operating correctly.
Catalyst switches are operating correctly.
•
If a unidirectional link is present, a loop may occur.
•
For instructions to verify the Catalyst links, see the
.
The verification commands must be entered from a
terminal directly connected to the external Catalyst
switches, using Cisco IOS CLI commands.
terminal directly connected to the external Catalyst
switches, using Cisco IOS CLI commands.
Step 6
exit
Example:
RP/0/RP0/CPU0:router(admin)# exit
RP/0/RP0/CPU0:router#
Exits administration EXEC mode and returns to EXEC
mode.
mode.
Command or Action
Purpose
Command or Action
Purpose
Step 1
admin
Example:
RP/0/RP0/CPU0:router# admin
Places the router in administration EXEC mode.
•
All commands listed in this procedure should be
entered on the pre-existing single-chassis system.
entered on the pre-existing single-chassis system.