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Cisco Bug: CSCuo34760 - Veth's/VIF's down on several servers after rebooting Primary-FI

Last Modified

Nov 27, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(2d)A 2.2(1.200)A 2.2(1d)A 2.2(2.107)A 2.2(2.116)A

Description (partial)

Symptom:
Some of the Veths/VIFs may be in down state on the  Fabric Interconnect which is currently primary and becomes subordinate after it is rebooted. Corresponding Veths/VIFS are up state on Primary Fabric Interconnect. The VIF's are down from both UCSM and Switch perspective.

Conditions:
i)UCS is in cluster HA configuration.
ii)This issue is seen intermittently only if Primary Fabric Interconnect gets rebooted and come back up as subordinate Fabric Interconnect and some Veths/VIFs state remain down on this new subordinate FI (while previous subordinate Fabric Interconnect becomes Primary).

Reboot of FI when working as Primary Fabric Interconnect is not a normal/expected operation. If primary FI needs to be rebooted,  user should force a switchover so that other FI becomes primary FI. Once it becomes subordinate FI after switchover, it can be rebooted without this issue impact.
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