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Verifying That Graceful Routing Engine Switchover Is Working in the Virtual Chassis
Purpose
Verify that a Graceful Routing Engine switchover (GRES) between two member switches acting as the master and backup routing engines in a Virtual Chassis has occurred.
Action
On the master switch, verify the member ID of the backup Routing Engine:
{master:0}
user@switch> show virtual-chassisVirtual Chassis ID: 5efa.4b7a.aae6
Mastership Neighbor List
Member ID Status Serial No Model priority Role ID Interface
0 (FPC 0) Prsnt BM0208105281 ex4200-24t 255 Master* 1 vcp-0
1 (FPC 1) Prsnt BP0208192350 ex4200-48t 255 Backup 0 vcp-0
Member ID for next new member: 2 (FPC 2)
- Connect to the backup Routing Engine:
{master:0}
user@switch> request session member 1{backup:1} user@switch> - Verify that the backup Routing Engine is ready for switchover
on member ID 1:
{backup:1}
user@switch> show system switchoverGraceful switchover: On Configuration database: Ready Kernel database: Ready Peer state: Steady State
- Switch the current backup Routing Engine to master Routing
Engine:
Note: You must wait a minimum of two minutes between Routing Engine failovers for the Routing Engines to synchronize.
{backup:1}
user@switch> request chassis routing-engine master acquire - Verify that the master and backup Routing Engines have
switched roles:
Note: Member ID 1 is now the master and member ID 0 is now the backup.
{master:1}
user@switch> show virtual-chassisVirtual Chassis ID: 5efa.4b7a.aae6 Mastership Neighbor List Member ID Status Serial No Model priority Role ID Interface 0 (FPC 0) Prsnt BM0208105281 ex4200-24t 255 Backup 1 vcp-0 1 (FPC 1) Prsnt BP0208192350 ex4200-48t 255 Master* 0 vcp-0 Member ID for next new member: 2 (FPC 2)
Meaning
With graceful Routing Engine switchover enabled, when you initiated a switchover from the backup Routing Engine, the backup Routing Engine became the master and the master Routing Engine became the backup.
