Cisco Systems 1000 Series Manual De Usuario

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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
Example: Configuring an R-L2GP
The following example shows how to configure an R-L2GP in a network comprising two nPEs.
Configuration example on nPE1:
enable
configure terminal
spanning-tree pseudo-information transmit 46
  remote-id 53
  mst 0 root 32768 0000.0000.0001
  mst 1 root 32768 0000.0000.0002
  mst 1 cost 1
  mst 2 root 32768 0000.0000.0003
exit
interface gigabitEthernet 2/1/0
   spanning-tree pseudo-information transmit 46
Configuration example on nPE2:
spanning-tree pseudo-information transmit 53
  remote-id 46
  mst 0 root 32768 0000.0000.0001
  mst 1 root 32768 0000.0000.0002
  mst 1 cost 1
  mst 2 root 32768 0000.0000.0003
interface gigabitEthernet 0/0/1
   spanning-tree pseudo-information transmit 53
Configuring the Layer 2 Protocol Forwarding Virtual Private LAN Services Pseudowire Between 
Two Redundant NPES
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
l2 vfi vfi-name manual 
4.
vpn id vpn_id
5.
bridge-domain bridge_id
Step 3
interface gigabitethernet
 slot/port 
or 
interface tengigabitethernet
 slot/port 
Example:
Router(config)# interface gigabitethernet 4/1
Specifies Gigabit Ethernet or the 10 Gigabit Ethernet 
interface on the access side of the nPE to configure. 
Here: 
slot/port—Specifies the location of the interface. 
Step 4
spanning-tree pseudo-information transmit
 
identifier
Example:
Router(config-if)# spanning-tree 
pseudo-information transmit 46
Configures the Reverse-L2GP configuration on the 
interface.
Note
The identifier should be the same as the one 
configured on the nPE.
Command
Purpose