topic RE: VRRP priority in ExtremeSwitching (VSP/Fabric Engine)

VRRP priority

Alok_Shukla — Sat, 30 Dec 2017 09:56:00 GMT

I have configured MLAG(X670) on two switch and want to configure VRRP active-active can we use same priority level on both switches?

RE: VRRP priority

AnonymousM — Sat, 30 Dec 2017 16:23:00 GMT

Just giving them the same priority does not give you active-active. When two VRRP routers have the same priority the one with the higher MAC wins. So only one of them will become master. You have to block the VRRP hellos via an ACL on the ISC link.

RE: VRRP priority

AnonymousM — Sat, 30 Dec 2017 16:28:00 GMT

VRRPActive.pol

entry denyVrrpCtrl {

if match all {

destination-address 224.0.0.18/32;

} then {

deny; } }

RE: VRRP priority

Stephane_Grosj1 — Sat, 30 Dec 2017 19:23:00 GMT

Fabric Routing is a simpler approach, imho. During the VRRP config, this is an option you can turn on.

configure vrrp {vlan vlan_name vr vr_id | all} fabric-routing [on | off]

User Guide:
https://documentation.extremenetworks.com/exos_22.4/EXOS_21_1/VRRP/c_vrrp-fabric-routing-overview.sh...

Command Guide:
https://documentation.extremenetworks.com/exos_commands_22.4/exos_21_1/exos_commands_all/r_configure...

RE: VRRP priority

AnonymousM — Sat, 30 Dec 2017 20:09:00 GMT

Stephane is right. With the introduction of fabric routing we have an easier approach. The ACL was the way to do it before we had fabric routing. Anyway, both ways work.

RE: VRRP priority

Alok_Shukla — Sat, 30 Dec 2017 20:09:00 GMT

thank's Hagemann

RE: VRRP priority

Bin — Sat, 30 Dec 2017 20:09:00 GMT

Hi,

There is one good article which could help you to configure fabric routing.

https://gtacknowledge.extremenetworks.com/articles/How_To/An-example-of-VRRP-fabric-routing-configur...

Best regards,
Bin