Configuring The Root Switch; Command Or Action; Step 1; Example - Cisco Catalyst 2960-XR Configuration Manual
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Configuring the Root Switch
Configuring the Root Switch
This procedure is optional.
Beginning in privileged EXEC mode, follow these steps to configure the root switch.
Before You Begin
A multiple spanning tree (MST) must be specified and enabled on the switch. For instructions, see Related
Topics.
You must also know the specified MST instance ID. Step 2 in the example uses 0 as the instance ID because
that was the instance ID set up by the instructions listed under Related Topics.
SUMMARY STEPS
1. configure terminal
2. spanning-tree mst instance-id root primary
3. end
DETAILED STEPS
Command or Action
Step 1
configure terminal
Example:
Switch# configure terminal
Step 2
spanning-tree mst instance-id root primary
Example:
Switch(config)# spanning-tree mst 0 root
primary
Step 3
end
Example:
Switch(config)# end
Related Topics
Root Switch, on page 44
Specifying the MST Region Configuration and Enabling MSTP, on page 59
Restrictions for MSTP, on page 42
Bridge ID, Device Priority, and Extended System ID, on page 17
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
62
Configuring Multiple Spanning-Tree Protocol
Purpose
Enters the global configuration mode.
Configures a switch as the root switch.
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 0 to 4094.
Returns to privileged EXEC mode.
OL-29424-01
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