[c-nsp] VPLS Redundency configuration help

[kharananda]

.....................                           .....................
  ...   MPLS PE ...          MPLS Core           ..  MPLS PE    ..
.......................                         ....................
    -                                                -
    -                                                -
    -                                                -
    -                                                -
    -         -------------------------             -
        ----------   Catalyst 2950 (CE)---------------------
                  ---------------------------



Dear All,

Above is my network diagram. Being an ISP, I am willing to give 
Redundant  VPLS to customer (creating and binding vsi/vpls to CE 
connected interface on PE) with the topology shown .

If I don't run STP protection for the loop between PEs and non-mpls 
Catalyst 2950 (CE) shown in figure, is there any mechanism in VPLS (like 
mac-withdrawal.etc) that defines these two arms of Cisco2950 to be 
primary and secondary link thereby  keeping one of the  port of 2950 
Catalyst in down state protecting the loop. And automatic switch over 
for link failure.

Regards,
Khara Nanda Luitel.