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State of Sync interface configured on Bond interface is 'DOWN' for each Virtual System
Symptoms

  • After issuing 'cpstop;cpstart' commands on the Standby VSX cluster member, the output of 'cphaprob -a if' command shows the following state of the Sync interface configured on Bond interface:

    • The state of Sync interface as 'UP' in the context of VSX itself (VS0).

    • The state of Sync interface as 'DOWN' for each Virtual System.

      Show / Hide example

      vsid 0:
------
Required interfaces: 3
Required secured interfaces: 1

wrp1       UP                    non sync(non secured), multicast
bond2      UP                    non sync(non secured), multicast, bond High Availability
bond4      UP                    sync(secured), broadcast, bond High Availability 

vsid 2:
------
Required interfaces: 3
Required secured interfaces: 1

bond4      DOWN            sync(secured), broadcast, bond High Availability
wrp129     UP                    non sync(non secured), multicast
wrp128     UP                    non sync(non secured), multicast
 
vsid 7:
------
Required interfaces: 4
Required secured interfaces: 1

bond4      DOWN            sync(secured), broadcast, bond High Availability
wrp448     UP                    non sync(non secured), multicast
wrp449     UP                    non sync(non secured), multicast
wrp450     UP                    non sync(non secured), multicast

  • Reboot of Standby VSX cluster member resolves the issue.

Cause

Sync interface is working normally. This is only a cosmetic issue - state of the Bond interface is not updated after issuing 'cpstop;cpstart' commands.


Solution
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