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Thiyagu's avatar
Thiyagu
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Jun 17, 2020

ARP issues between Nexus 7K and F5 LTM

Hi Team, We have faced a weird issue in our environment. issue: loadbalancer-1 failedover to Load balancer-2. Whereas all the production traffic flow did not failover properly to load balancer-2 ...
application delivery
BIG-IP
LTM
Henric_Petterss's avatar
Henric_Petterss
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Jun 17, 2020

Don't know if it is the problem here, but F5 LTM will not send out GARP for vlans where it doesn't have a self-ip. We noticed that recently when we got the same problem as you have. We did not have self-ip in all vlans so the VIP's on that were not moved in a failover. We added a self-ip on that vlan (in the matching ip-subnet), and then failover started working again.