Cat 6500 spanning tree - change MAC address?

The BIA is not configurable on the CAT6500 or any of the other switching platforms. The only option you have is to set the root priority lower.

Thanks. Can I ask a followup question, namely is the spanning tree bridge ID taken solely from some particular BIA rather than from any of other other possible addresses; or to rephrase that, do any of the techniques mentioned in, say, have any effect on STP bridge IDs?

Thanks,

Sam Wilson Network Development Team, Infrastructure Services Division Computing Services, The University of Edinburgh Edinburgh, Scotland, UK

The spanning-tree bridge id is based off the idprom in the catalyst chassis. What the document is referring to is the SVI mac. Typically all routed ports/SVIs share the same mac, the document above gives direction on how to make the macs on the SVI different. This will have no effect on the bridge id as those addresses are not used in the root selection.

Hope this answers your questions. Anthony

The spanning-tree bridge id is based off the idprom in the catalyst chassis. What the document is referring to is the SVI mac. Typically all routed ports/SVIs share the same mac, the document above gives direction on how to make the macs on the SVI different. This will have no effect on the bridge id as those addresses are not used in the root selection.

Hope this answers your questions. Anthony

Yep - thanks a lot.

Sam