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Cisco Bug: CSCvv55973 - FTD HA upgrade allowed when failover link is down causing active/active

Last Modified

Sep 03, 2020

Products (1)

  • Sourcefire Defense Center

Known Affected Releases

Description (partial)

After upgrading the standby FTD of an HA pair there is split brain scenario if the failover link is disconnected

Upgrade  fails on original active unit on 200_pre/

Prior to the upgrade FMC shows  health alert "Interface <interface_name> has no link", however, the upgrade is allowed

Failover link is disconnected, however, failover is still healthy  due to  data interfaces seeing each other
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