Cisco Systems N3KC3064TFAL3 Manual De Usuario
Purpose
Command or Action
• 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.
separated by a comma. The range is from 1 to 4094.
secondary} [diameter dia
[hello-time hello-time]]
[hello-time hello-time]]
• 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.
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.
root bridge. The range is from 1 to 10 seconds; the default
is 2 seconds.
(Optional)
Returns the switch priority, diameter, and hello time to default
values.
Returns the switch priority, diameter, and hello time to default
values.
switch(config)# no spanning-tree
mst instance-id root
mst instance-id root
Step 3
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
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 configuration command.
same network diameter and hello-time values that you used when you configured the primary root bridge with
the spanning-tree mst root primary configuration command.
Procedure
Purpose
Command or Action
Enters configuration mode.
switch# configure terminal
Step 1
Configures a switch as the secondary root bridge as follows:
switch(config)# spanning-tree
mst instance-id root {primary |
mst instance-id root {primary |
Step 2
• 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.
separated by a comma. The range is from 1 to 4094.
secondary} [diameter dia
[hello-time hello-time]]
[hello-time hello-time]]
• 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.
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.
root bridge. The range is from 1 to 10 seconds; the default
is 2 seconds.
Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)
104
OL-26590-01
Configuring Multiple Spanning Tree
Configuring a Secondary Root Bridge