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VRRP messages indicating (rc Operation failed)

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TitleVRRP messages indicating (rc Operation failed)
Symptoms
  • VRRP Error messages in the logs showing "adj <HEX VALUE> Add had mixed results. <#> units succeeded, <#> failed (rc Operation failed)".
  • Certain hosts become unreachable.
Environment
  • BlackDiamond 8810
  • EXOS version 15.3.1.4-patch1-20
Cause
The VRRP MAC address is not programmed in hardware correctly if the corresponding hash bucket is already full with other normal MAC address entries. This can cause connectivity issues to hosts relying on the VRRP Master for routing.
Resolution
This is a software deficiency that has been documented under CR xos0054486. An upgrade to one of the following releases contains the fix for this incorrect behavior:

EXOS 15.1.6 (Verified)
EXOS 15.2.5 (Released)
EXOS 15.3.2 (Released)
EXOS 15.3.4 (Released)
EXOS 15.4.2 (Released)
EXOS 15.5.1 (Released)
Additional notes

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