Configuring A Secondary Root Bridge - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual
Cisco nexus 5000 series switch cli software configuration guide, nx-os 4.0(1a)n1 (ol-16597-01, january 2009)
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Also See for AJ732A - Cisco MDS 9134 Fabric Switch:
- Command reference manual (1640 pages) ,
- Messages manual (518 pages) ,
- Installation manual (288 pages)
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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
To enable the root bridge configuration, perform this task:
Command
Step 1
switch# configure terminal
Step 2
switch(config)# spanning-tree mst
instance-id root {primary | secondary}
[diameter dia [hello-time hello-time]]
This example shows how to configure the switch as the root switch for MSTI 5:
switch# configure terminal
switch(config)# spanning-tree mst 5 root primary
To disable the root bridge configuration, perform this task:
Command
switch(config)# no spanning-tree mst
instance-id root
Configuring a Secondary Root Bridge
You can execute this command on more than one switch to configure multiple backup root bridges. Enter
the same network diameter and hello-time values that you used when you configured the primary root
bridge with the spanning-tree mst root primary global configuration command.
OL-16597-01
Purpose
Enters configuration mode.
Configures a switch as the root bridge 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 diameter net-diameter, specify the maximum
number of hops between any two end stations.
The default is 7. This keyword is available only
for MST instance 0.
For hello-time seconds, specify the interval in
•
seconds between the generation of configuration
messages by the root bridge. The range is from 1
to 10 seconds; the default is 2 seconds.
Purpose
Returns the switch priority, diameter, and hello time
to default values.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring MST
9-17
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