topic RE: x670-x440 Vrrp change master to backup, not routing in ExtremeSwitching (EXOS/Switch Engine)

x670-x440 Vrrp change master to backup, not routing

Network_Operat1 — Mon, 08 Oct 2018 17:19:00 GMT

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.

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RE: x670-x440 Vrrp change master to backup, not routing

davidj_cogliane — Mon, 08 Oct 2018 17:46:00 GMT

If the stack is 1 460 and 1 440 the backup must be the 440. The 440 does not have the routing abilities the 460 does.

Unless I am missing something this is design issue and the 440 should be replaced with a second 460.

RE: x670-x440 Vrrp change master to backup, not routing

Network_Operat1 — Mon, 08 Oct 2018 17:54:00 GMT

The backup is basically the same construct as the Master, comprised of 1 x460 and 1x440. X460 are configured with vrrp configurations

RE: x670-x440 Vrrp change master to backup, not routing

davidj_cogliane — Mon, 08 Oct 2018 17:54:00 GMT

So its not failing over to the backup switch, just the backup stack which still has the 460 as master. That makes things more interesting.

I would still recommend replacing the 440 so that you have a backup if one of the 460s goes down.

RE: x670-x440 Vrrp change master to backup, not routing

Network_Operat1 — Mon, 08 Oct 2018 17:54:00 GMT

ok but did you seen the Picture i attached the way its constructed ?

RE: x670-x440 Vrrp change master to backup, not routing

davidj_cogliane — Mon, 08 Oct 2018 17:54:00 GMT

Yes, the ISC runs between the 460 and the 440.

RE: x670-x440 Vrrp change master to backup, not routing

davidj_cogliane — Mon, 08 Oct 2018 17:54:00 GMT

If you run show vrrp detail on each stack does everything look consistent?

RE: x670-x440 Vrrp change master to backup, not routing

JohanHendrikx — Mon, 08 Oct 2018 17:57:00 GMT

ipforwarding enabled on the backup?

RE: x670-x440 Vrrp change master to backup, not routing

Network_Operat1 — Mon, 08 Oct 2018 17:57:00 GMT

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

RE: x670-x440 Vrrp change master to backup, not routing

davidj_cogliane — Mon, 08 Oct 2018 17:57:00 GMT

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

RE: x670-x440 Vrrp change master to backup, not routing

Network_Operat1 — Mon, 08 Oct 2018 17:57:00 GMT

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.