I just implemented 2 firewall (fortigate) units with high-availability and setup their VRRP interface that is connected to a single core switch (3650). When testing, the failover process was success but the problem is on the switch couldn't forward the traffic after the slave fortigate took over.
The temporary workaround for this is I added a L2 switch between 2 links from fortigate and 1 link to core switch and the failover process succeeded.
Is there an additional configuration on the core switch needed to be configured for this to work?
Thank you.
