Hi,
I'm troubleshooting a FortiGate HA setup connected to Cisco Nexus using OSPF/Gracefull restart/BFD.
Trying to near/sub-second downtime in a failover situation.
And I'm reading in a FortiNet document that there is a difference in a failover situation when doing an upgrade of the HA cluster.
It states that the routing table (kernel routes i assume) are not synced during the upgrade, which would lead to a more severe outage than a regular cluster failover.
Does anybody have more information/experience with this? I was under the impression that during the upgrades of the HA members the failovers would only start after synchronisation is complete.
Regards,
Jack
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