Specifying The Link Type For Mst-Cli Version - Cisco Nexus 7000 Series Configuration Manual

Configuring MST Using Cisco NX-OS
DETAILED STEPS
Command or Action
Step 1
switch# config t
Step 2
switch(config)# interface type slot/port
Step 3 switch(config-if)# spanning-tree mst
pre-standard
Step 4
switch(config-if)# exit
Step 5
switch# show spanning-tree mst
Step 6 switch(config)# copy running-config
startup-config
This example shows how to set the MST interface so that it always sends MSTP messages in the prestandard
format:
switch# config t
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree mst pre-standard
switch(config-if)# exit
switch(config)#
Specifying the Link Type for MST—CLI Version
Rapid connectivity (802.1w standard) is established only on point-to-point links. By default, the link type is
controlled from the duplex mode of the interface. A full-duplex port is considered to have a point-to-point
connection; a half-duplex port is considered to have a shared connection.
If you have a half-duplex link physically connected point to point to a single port on a remote device, you can
override the default setting on the link type and enable rapid transitions.
If you set the link to shared, STP falls back to 802.1D.
Before You Begin
Ensure that you are in the correct VDC (or enter the switchto vdc command).
Purpose
Enters global configuration mode.
Specifies the interface to configure and enters interface
configuration mode.
Specifies that the interface always sends MSTP messages in
the prestandard format, rather than in the MSTP standard format.
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
Specifying the Link Type for MST—CLI Version
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