Cisco Nexus 7000 Series Configuration Manual page 177

Configuring MST Using Cisco NX-OS
DETAILED STEPS
Command or Action
Step 1
config t
Example:
switch# config t
switch(config)#
Step 2 interface {{type slot/port} | {port-channel number}}
Example:
switch(config)# interface ethernet 3/1
switch(config-if)#
Step 3
spanning-tree mst instance-id port-priority priority
Example:
switch(config-if)# spanning-tree mst 3
port-priority 64
Step 4 exit
Example:
switch(config-if)# exit
switch(config)#
Step 5
show spanning-tree mst
Example:
switch# show spanning-tree mst
Step 6 copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config
This example shows how to set the MST interface port priority for MSTI 3 on Ethernet port 3/1 to 64:
switch# config t
switch(config)# interface ethernet 3/1
switch(config-if)# spanning-tree mst 3 port-priority 64
switch(config-if)# exit
switch(config)#
Purpose
Enters global configuration mode.
Specifies an interface to configure, and enters interface
configuration mode.
Configures the port priority as follows:
• For instance-id, you can specify a single MSTI, a range
of MSTIs separated by a hyphen, or a series of MSTIs
separated by a comma. The range is from 1 to 4094.
• For priority, the range is from 0 to 224 in increments of
32. The default is 128. A lower number indicates a higher
priority.
The priority values are 0, 32, 64, 96, 128, 160, 192, and
224. The system rejects all other values.
Exits interface configuration mode.
(Optional)
Displays the MST configuration.
(Optional)
Copies the running configuration to the startup configuration.
Cisco Nexus 7000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.x
Configuring the MST Port Priority
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