x670-x440 Vrrp change master to backup, not routing

[Network_Operat1]

We have 2 stacks both stacks are 1 x460 and 1x440 and an ISC connecting. When we try to fail over to the backup, the backup takes over as master but routing of the layer 3 vlans is not happening. FW Version we are using is 21.1.5.2

Any help or ideas much will be appreciated.

.

[JohanHendrikx]

ipforwarding enabled on the backup?

[Network_Operat1]

ok in the config on the backup x460 the ipforwarding is not enabled, But your saying it needs to be there ok. I am new to extreme but we can try it to see it works.

[davidj_cogliane]

It should be enabled in the config, even though it should not be forwarding was the other stack is vrrp master

[Network_Operat1]

ipforwarding on the backup takes place after it takes over as the master or no?