RSTP/MSTP issue

Hi guys,

SW1--------------------------------------------------------------SW2
                                        | Trunk
                                     |Trunk
                                        | Trunk
                                     |Trunk
                                      L2 Switch (MUX card)
                      L2 Switch (MUX card)
                                         |
                                        |
                                         |
                                        |
                                         |
                                        |
                                         |
-------------------------------VLAN10---------SW3---VLAN10

SW3 is non-cisco and only supports MSTP and RSTP

SW1 and SW2 are cisco 6500 switches

L2 mux card dont undertsand STP , they are just L2 cards (only
understand Vlan and mac-address)

If I RUN MSTP or RSTP on SW3 also , my MUX CARD doesnt understand STP
, it only understands VLANS ....But BPDU Format of MSTP has VLAN
encrypted as MD5 which
L2 MUX card wont understand. Also in RSTP issue that I think will be
in case ----- I have 50 more switch like SW3 connecting to L2 mux
cards ...in case one of the SW link goes down to L2 mux card all my
vlans will converge.

Any suggestion or wayout

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Received on Wed Sep 01 2010 - 13:08:16 ART