VRRP issus

[dhibsystel]

I have 2 BD8806 working in VRRP.

I have more than 20 vlans configuring as VRRP.

each vrid was used by more than one Vlan.

when I add to vlan X tagged port it displays a warning message " port belong to multiple vrrp vlans ?


is it possible to use vrid to multiple vlans with differents Virtual route ip address.


many thanks

 

[ExtremeTek]

This is normal. All this warning is trying to tell you is that the Extreme Switch itself has multiple VRRP protected VLANs that are going to be using the same Virtual MAC address. I think the limit is 7 VMACs for VRRP. You can review the release notes for your software version and read the Limits section to be sure.

Better yet just read the software users guide here for 12.2

http://www.extremenetworks.com/libraries/services/ExtremeXOSConceptsGuideSoftwareVersion12_2_2.zip

See Page 975

Up to seven unique VRIDs can be configured on the router. VRIDs can be re-used, but not on the same interface.

So if you have 20 VRRP instances. You are going to have several VLANS that share the same Virtual MAC address. Each VLAN can have it's own Virtual IP. The Extreme Switch IP ARP and FDB tables know how to distinquish this.

I'll try to create an example configuation and post it here for you using 20 VLANs with 20 VIPs assigned to uplinks to demonstrate for you. I have a couple of test swtiches lying around. Give me a little bit of time.

Evil will always triumph, because good is dumb.

 

[dhibsystel]

many thinks for you.

but when I have differents Vlans with some vrid, it this affect fonctionnality in BD8806

 

[ExtremeTek]

To answer your question, NO this will not affect the functionality of your BD8806.

Extreme Networks has individual Forwarding Database (FDB) entries per VLAN. So even though you have Virtual MAC addresses (linked to VRRP intances) for several VLANS per VRRP instance and these VLANs are all sharing the same Virtual MAC address there is no collision or problem with forwarding, routing or switch functionality. The same VRRP virtual MAC can appear for several VLANs where VRRP is configured (with the same VRRP ID on several VLANs). This is supported on Extreme, which is why only having 7 VRID's is not a problem and why you can have several VLANs assigned to each VRID.

Regards,
ExtremeTek

Evil will always triumph, because good is dumb.