Chapter 6
Troubleshooting the Control Plane Ethernet Network
DETAILED STEPS
Command or Action
Step 1
Check that all external GE switches are connected to
the RPs and SCs as illustrated in
Step 2
Connect to the console port of an external Catalyst
switch.
Step 3
enable
Example:
CAT6k-1# enable
Step 4
show running-config
Example:
CAT6k-1# show running-config
Verify communication between the Catalyst switch
Step 5
and the RPs and SCs
Step 6
Contact Cisco Technical Support.
Troubleshooting the CRS-1, 4-slot, 8-slot, or 16-slot System
Router Topology
To verify and troubleshoot the Cisco CRS-1 8-Slot Line Card Chassis, Cisco CRS-1 8-Slot Line Card
Chassis, or Cisco CRS-1 16-Slot Line Card Chassis router topology, perform the following procedures.
OL-21483-02
Figure
6-2.
.
Troubleshooting the CRS-1, 4-slot, 8-slot, or 16-slot System Router Topology
Purpose
Ensures that the connections for the control plane Ethernet
network are made. See Cisco CRS-1 Carrier Routing
System Multishelf System Interconnection and Cabling
Guide for details on system control plane Ethernet network
to RP and SC cabling.
Provides connection to the control plane Ethernet network.
See Cisco CRS-1 Carrier Routing System Multishelf System
Interconnection and Cabling Guide for details on
connecting to the external switch.
Enters enter privileged EXEC mode.
Displays the contents of the currently running configuration
file on the external Catalyst switch.
Check the running configuration to ensure it is the expected
configuration. Also, check the following:
•
Spanning tree is enabled
There is one VLAN in the spanning tree configuration
•
All GE ports are forwarding
•
The external Catalyst switch is a spanning tree root
•
(MAC address indicated for designated root is the same
as the bridge ID MAC ADDR)
See Cisco CRS-1 Carrier Routing System Multishelf System
Upgrade and Conversion Guide for information on
verifying communication between the Catalyst switch and
the RPs and SCs.
If the problem is not resolved, contact Cisco Technical
Support. For Cisco Technical Support contact information,
see the
"Obtaining Documentation and Submitting a
Service Request" section on page viii
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
in the Preface.
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