topic Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ? in ExtremeSwitching (VSP/Fabric Engine)

Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

WindyMiller — Fri, 09 Jun 2023 15:12:28 GMT

Hi,

We Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP anyone any tips?

Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

TQU — Sat, 10 Jun 2023 18:40:08 GMT

Hi Windy!

Yes, sure you can add third node in your VRRP group.

Copy/paste the config from one existing node. Juste change the local IP address and adapt the master priority to place the master on the node you want.

Regards,

Théo

Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

WillyHe — Sat, 10 Jun 2023 21:14:16 GMT

Hello,

There is no limitation in the number of nodes running vrrp in a subnet.
Do not forget to enable VRRP-Master functionality on each node and each VRRP interface.

regards
WillyHe

Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

WillyHe — Sun, 11 Jun 2023 07:27:53 GMT

Hello,

It was late yesterday, you must read VRRP-BackupMaster functionality.

regards
WillyHe

Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

gfriedl — Mon, 12 Jun 2023 07:35:59 GMT

Sure, VRRP does not limit the number of router per subnet.

Assuming you are running Fabric Connect, the usefullness of multiple routers depends of their location within the fabric. if these routers are at the edge of the fabric (so no L2 BEBs attached), than using VRRP backup-master wou would make sure, traffic is routed on the node, where it arrives into the fabric...

if these routers are located withing the core of the fabric and surounded by BEBs, than traffic would always be tunneled to the node, that answered the ARP, which is the VRRP master. So having four of them would not help much. (except you have them located in different buildings and preparing for some split network scenario).

Re: Currently have a pair of 8284 running VRRP can we add another 8284 to the VRRP ?

WillyHe — Mon, 12 Jun 2023 12:36:26 GMT

Hello,

All correct.

Conclusion, to give a correct advice we must know the context, is it a "FABRIC" (SPBM-FC) network? is it a "legacy"? is the existing an SMLT cluster? ...

regards
WillyHe