2950, JMUX and spanning tree

[apostollic]

I have an Optical network utilizing JMUX that is running spanning tree on the NIC cards themselves. I have disabled Spannign tree on the switches in this network, however, eventually a couple of 2950's get 99% utilization and Spanning tree process is at 56%...Is the Spanning tree from the JMUX flooding the switch>>> Will it evern see those BPDU's from that Nortel Jmux....

[Francois Tallet]

I'd be happy to help you but I have honestly no clue about what this JMUX is doing (or even what it is supposed to do;-)

Could it be that, once you have disabled STP on it, there could be some BPDUs looping? Usually, BPDUs are never forwarded by a bridge, only relayed (which explains why we never expect them to receive BPDUs at a high rate). The fact that your STP process is taking so much CPU makes me think that BPDUs are somehow looping and hitting the 2950.

Regards,

Francois