Restarting The Protocol; Verifying Mst Configurations - Cisco N5010P-N2K-BE Software Configuration Manual

Chapter 9 Configuring MST
S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
This example shows how to configure the link type as point to point:
switch# configure terminal
switch (config)# interface ethernet 1/4
switch(config-if)# spanning-tree link-type point-to-point

Restarting the Protocol

An MST bridge can detect that a port is at the boundary of a region when it receives a legacy BPDU or
an MST BPDU that is associated with a different region. However, the STP protocol migration cannot
determine whether the legacy switch, which is a switch that runs only IEEE 802.1D, has been removed
from the link unless the legacy switch is the designated switch. Enter this command to restart the
protocol negotiation (force the renegotiation with neighboring switches) on the entire switch or on
specified interfaces.
To restart the protocol, perform this task:
Command
Step 1
switch# clear spanning-tree
detected-protocol [interface interface
[interface-num | port-channel]]
This example shows how to restart MST on the Ethernet interface on slot 2, port 8:
switch# clear spanning-tree detected-protocol interface ethernet 2/8

Verifying MST Configurations

To display MST configuration information, perform one of the following tasks:
Command
switch# show running-config
spanning-tree [all]
switch# show spanning-tree mst [options]
The following example shows how to display current MST configuration:
switch# show spanning-tree mst configuration
% Switch is not in mst mode
Name
Revision
Instance
--------
0
1
-------------------------------------------------------------------------------
OL-16597-01
[mist-attempt]
1 Instances configured 2
Vlans mapped
---------------------------------------------------------------------
1-12,14-41,43-4094
13,42
Purpose
Restarts MST on entire switch or specified interfaces.
Purpose
Displays the current spanning tree configuration.
Displays detailed information for the current MST
configuration.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Verifying MST Configurations
9-25