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VRRP priority


Userlevel 1
I have configured MLAG(X670) on two switch and want to configure VRRP active-active can we use same priority level on both switches?

6 replies

Userlevel 3
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.
Userlevel 3
VRRPActive.pol

entry denyVrrpCtrl {

if match all {

destination-address 224.0.0.18/32;

} then {

deny; } }
Userlevel 7
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...
Userlevel 3
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.
Userlevel 1
Hagemann, Olaf wrote:

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.

thank's Hagemann
Userlevel 5
Hagemann, Olaf wrote:

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.

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

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