On 25/03/2008, Adam Greene <[EMAIL PROTECTED]> wrote: > Hi, > > I'm needing to set up a redundant trunk link between a 6509 and a 3750. The > 6509 is running MST, the 3750 PVST. Am I going to have issues? I am assuming > so ... > > Thanks, > Adam > > > === > 6509 > === > > #MST (IEEE 802.1s) > set spantree fwddelay 15 mst > set spantree hello 2 mst > set spantree maxage 20 mst > set spantree mst maxhops 20 > set spantree priority 0 mst 0-15 > set spantree priority 32768 mst 16-4094 > > #MST Configuration > set spantree mst config rollback force > set spantree mst config name revision 0 > set spantree mst 0 vlan 1-4094 > set spantree mst config commit > > #vlan(defaults) > set spantree enable 1-16,30,40,99-100,123,128,192,840,888 > set spantree fwddelay 15 1-16,30,40,99-100,123,128,192,840,888 > set spantree hello 2 1-16,30,40,99-100,123,128,192,840,888 > set spantree maxage 20 1-16,30,40,99-100,123,128,192,840,888 > set spantree priority 32768 2-16,30,40,99-100,123,128,192,840,888 > > ==== > 3750 > ==== > > spanning-tree mode rapid-pvst > >
read here http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a00807b075f.shtml#mst1 http://www.cisco.com/warp/public/473/147.html#invalid_configuration in a nutshell as long as mst priority for instance 0 (CST) is better then PVST, you are good to go, but also keep in mind not to disable PVST on any VLANs on trunks between switches (no spt-disabled point to point vlans). Also don't do asymetric vlan configurations on trunks - remember that mst does not care about what vlans are actually provisioned on links but how are the instances configured. The links should give you a good starting point Best Regards, -mat _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
