Configuring The Mst Switch Priority - Cisco Nexus 7000 Series Configuration Manual

Configuring MST Using Cisco NX-OS
This example shows how to configure the device as the secondary root switch for MSTI 5:
switch# config t
switch(config)# spanning-tree mst 5 root secondary
switch(config)# exit
switch#

Configuring the MST Switch Priority

You can configure the switch priority for an MST instance so that it is more likely that the specified device
is chosen as the root bridge.
Be careful when using the spanning-tree mst priority command. For most situations, we recommend
Note
that you enter the spanning-tree mst root primary and the spanning-tree mst root secondary global
configuration commands to modify the switch priority.
Before You Begin
Ensure that you are in the correct VDC (or enter the switchto vdc command).
SUMMARY STEPS
1. config t
2. spanning-tree mst instance-id priority priority-value
3. exit
4. (Optional) show spanning-tree mst
5. (Optional) copy running-config startup-config
DETAILED STEPS
Command or Action
Step 1
config t
Example:
switch# config t
switch(config)#
Step 2
spanning-tree mst instance-id priority
priority-value
Example:
switch(config)# spanning-tree mst 5
priority 4096
Purpose
Enters global configuration mode.
Configures a device priority as follows:
• For instance-id, you can specify a single instance, a range of
instances separated by a hyphen, or a series of instances
separated by a comma. The range is from 1 to 4094.
• For priority-value the range is from 0 to 61440 in increments
of 4096; the default is 32768. A lower number indicates that the
device will most likely be chosen as the root bridge.
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x
Configuring the MST Switch Priority
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