Guest

Preview Tool

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

6.4.0.9

Description (partial)

Symptom:
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/200_enable_maintenance_mode.pl

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

Conditions:
Failover link is disconnected, however, failover is still healthy  due to  data interfaces seeing each other
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.