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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 16 Configuring MPLS Layer 2 VPNs
Virtual Private LAN Services
• Configuring the Layer 2 Protocol Forwarding Virtual Private LAN Services Pseudowire Between
Two Redundant NPES, page 16-11
Configuring the MST
Configuration of the MST must be done before configuring the R-L2GP and attaching the R-L2GP to a
port.
SUMMARY STEPS
1. enable
2. configure terminal
3. spanning-tree mode mst
4. spanning-tree mst configuration
5. [no] name name
6. [no] revision version
7. [no] instance instance-id {vlans vlan-range}
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router# enable
Enables privileged EXEC mode.
Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
spanning-tree mode mst
Example:
Router(config)# spanning-tree mode mst.
Enables MST mode.
Step 4
spanning-tree mst configuration
Example:
Router(config)# spanning-tree mst configuration
Enters MST configuration submode.
Step 5
name name
Example:
Router(config-mst)# name Cisco
Sets the name of the MST region.
Note All the nodes in the same region should be
configured with the same MST name.