Hello We have several Nexus 9K's which we have changed the system reserved vlans from the defaut to 3600-3727. We now have a requirement to migrate to MST.
The Cisco docs state “You cannot map VLANs 3968 to 4095 to an MST instance. These VLANs are reserved for internal use by the device.” The doc does not mention if those vlans can be used for MST if they are no longer reserved. As a test I created the the below MST config but not enabled MST yet, spanning-tree mst configuration name TEST-MST revision 1 instance 1 vlan 2-3599 instance 2 vlan 3729-4092 exit end I didn't see any errors but as MST is not actually enabled yet I'm not convinced so I tried the below by adding in vlan 3601 which is part of the currently reserved vlans. spanning-tree mst configuration name TEST-MST revision 1 instance 1 vlan 2-3599 instance 2 vlan 3729-4092 instance 3 vlan 3601 exit end Again I don't see any errors when I expected to by using a known reserved vlan. Has anybody changed the system reserved vlans and enabled vlans 3968 and above in MST ? The current RSTP setup is working well with the reserved vlans but the rack switches are reaching the RSTP limit (128) Thanks _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
