Thanks, Mat, this helps! ----- Original Message ----- From: "Mateusz Blaszczyk" <[EMAIL PROTECTED]> To: "Adam Greene" <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Tuesday, March 25, 2008 4:04 PM Subject: Re: [c-nsp] mst & pvst
> 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/
