Spanning Tree PortFast BPDU Guard Enhancement

[windell.alvarez]

Will this solve our problems interconnecting 2 ports configured in 2 different vlans?

TIA

[amit-singh]

Hi Windell,

STP portfast BPDU guard is the feature which is specifically desinged for the ports running stp portfast on them so that a temporary introduction of a switch with lower bridge ID should not disrupt the network topology.At the reception of BPDUs, the BPDU guard operation disables the port that has PortFast configured. The BPDU guard transitions the port into errdisable state.

Please see the link:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a008009482f.shtml

I didnot get your question. Can you eleborate more on this.

regards,

-amit singh