I'm trying to track GLBP priority much like we do with HSRP. I understand GLPB's tracking of the AVFs but that's not what I want to do. I want to be able to not only decide what my AVF's are but also I want to track the AVG's. I'm not able to find a way to track just the AVGs other than to manually go into each interface and change the priority.
Here's my rational/scenario:
I have two upstread L2/L3 6509's that terminal all of my VLANs. On thos VLANs I have GLBP configured with my primary 6509 as the AVG (Priority 150) and the secondary 6509 as the Standby VG (Priority 100). My AVFs vary depending on tracked interfaces and that portion works fine for me.
When I want to perform maintenance on the primary router, I'd like to shift traffic away from that router completely. So I can do that with a tracked interface which would cause my weight to drop below the lower weight limit and the Standby VG now becomes my AVF for the two virtual MACs. The AVG is still my primary 6509 and I want to also shift that but I can't find a way to do that. i.e. I want what is the standby VG to take responsibility for responding to the ARP requests for the gateway address. As it is now, the primary is not an AVF but it is responsible for handling the ARP requests.
Is there a way to accomplish what I need?