user manual

PurposeCommand or Action
When you map VLANs to an MST instance, the mapping is
incremental, and the VLANs specified in the command are added
to or removed from the VLANs that were previously mapped.
To specify a VLAN range, enter a hyphen; for example, enter
the instance 1 vlan 1-63 command to map VLANs 1 through
63 to MST instance 1.
To specify a VLAN series, enter a comma; for example, enter
the instance 1 vlan 10, 20, 30 command to map VLANs 10,
20, and 30 to MST instance 1.
Specifies the instance name. The name string has a maximum
length of 32 characters and is case sensitive.
switch(config-mst)# name
name
Step 4
Specifies the configuration revision number. The range is from
0 to 65535.
switch(config-mst)# revision
version
Step 5
To return to defaults, do the following:
•
To return to the default MST region configuration settings, enter the no spanning-tree mst configuration
configuration command.
•
To return to the default VLAN-to-instance map, enter the no instance instance-id vlan vlan-range
MST configuration command.
•
To return to the default name, enter the no name MST configuration command.
•
To return to the default revision number, enter the no revision MST configuration command.
•
To reenable Rapid PVST+, enter the no spanning-tree mode or the spanning-tree mode rapid-pvst
global configuration command.
This example shows how to enter MST configuration mode, map VLANs 10 to 20 to MST instance 1, name
the region region1, set the configuration revision to 1, display the pending configuration, apply the changes,
and return to global configuration mode:
switch(config)# spanning-tree mst configuration
switch(config-mst)# instance 1 vlan 10-20
switch(config-mst)# name region1
switch(config-mst)# revision 1
switch(config-mst)# show pending
Pending MST configuration
Name [region1]
Revision 1
Instances configured 2
Instance Vlans Mapped
-------- ---------------------
0 1-9,21-4094
1 10-20
-------------------------------
Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)
OL-26590-01 101
Configuring Multiple Spanning Tree
Specifying the Configuration on an MST Region