Installation guide

Debug Commands
34
Cisco IOS 11.2(15)GS2
Debug Commands
This section describes debug commands and test commands useful for troubleshooting the GRP
redundancy feature.
• debug gsr redundancy
debug gsr redundancy
Use the debug gsr redundancy debug command to display information about the status of
redundancy operations. The no form of this command disables debugging output.
[no] debug gsr redundancy
Usage Guidelines
Use this command to display continuous output of the various state changes and messages that pass
between the primary GRP and secondary GRP.
Note Using this command places a high load on the route processor. We recommend that you do
not use this command in a production network. The debug information displayed by this command
is available from the show redundancy trace EXEC command.
Sample Display
The following display shows sample debug gsr redundancy output.
router# debug gsr redundancy
*Feb 25 12:55:30.998:redundancy:send msg_primary
*Feb 25 12:55:30.998:redundancy:primary p_redundant, TICK_COUNTDOWN:
*Feb 25 12:55:30.998:redundancy:enq MSG_SECONDARY
*Feb 25 12:55:30.998:redundancy:primary p_redundant, MSG_SECONDARY:
*Feb 25 12:55:31.498:redundancy:enq TICK_COUNTDOWN
Table 5 shows describes the fields and messages shown in the sample debug gsr redundancy
output. Not all fields or values are described.
Table 5 Debug GSR Redundancy Field Descriptions
Field Description
Oct 2 11:28:08.737: Date and time on the router.
redundancy GSR redundancy debug message.
send msg_primary Recipient of current message.
primaryp_redundant . . . Change in the primary GRP arbitration finite state
machine.
enq . . . Change in the secondary GRP arbitration finite state
machine.