I have a scenario where I need to provide redundant PEs for Layer 3 services. Currently we have a single PE connected to a switch (dot1q) where customers aggregate. And appropriate VRFs are configured on these PEs.
Now we are thinking of connecting an access ring (3 switches) of 3560s to redundant PEs that are 7600s.
The questions which come in my mind are:-
1) How do I protect the access ring (RSTP/MSTP??)
2) Is HSRP (on 7600) the only option for providing redundant PE connectivity.
3) If my Access devices are dual homed to my PEs, how do I configure STP and FRR Protection on PE.
I am sorry if I am sounding a little confusing... you can guess the reasons :-)
Looking forward for further discussions...