Cisco Nexus 5000 Series Switch CLI Software Configuration Guide, NX-OS 4.0(1a)N1 (OL-16597-01, January 2009)

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9-13
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 9 Configuring MST
Configuring MST
To specify an MST name, perform this task:
This example shows how to set the name of the MST region:
switch# configure terminal
switch(config)# spanning-tree mst configuration
switch(config-mst)# name accounting
Specifying the MST Configuration Revision Number
You configure the revision number on the bridge. For two or more bridges to be in the same MST region,
they must have the identical MST name, VLAN-to-instance mapping, and MST revision number.
To specify an MST revision number, perform this task:
This example shows how to configure the revision number of the MSTI region for 5:
switch# configure terminal
switch(config)# spanning-tree mst configuration
switch(config-mst)# revision 5
Specifying the Configuration on an MST Region
For two or more switches to be in the same MST region, they must have the same VLAN-to-instance
mapping, the same configuration revision number, and the same MST name.
A region can have one member or multiple members with the same MST configuration; each member
must be capable of processing IEEE 802.1w RSTP BPDUs. There is no limit to the number of MST
regions in a network, but each region can support only up to 65 MST instances. You can assign a VLAN
to only one MST instance at a time.
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# spanning-tree mst
configuration
Enters MST configuration submode.
Step 3
switch(config-mst)# name name
Specifies the name for MST region. The name string
has a maximum length of 32 characters and is
case-sensitive. The default is an empty string.
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# spanning-tree mst
configuration
Enters MST configuration submode.
Step 3
switch(config-mst)# revision version
Specifies the revision number for the MST region.
The range is from 0 to 65535, and the default value is
0.