Cisco ASR 920 series Configuration Guide Ethernet Router

Configuring 2:1 VLAN Translation
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
interface <interface-number>
4.
service instance id ethernet {evc-id}
5.
encapsulation dot1q {vlan-id} second-dot1q {vlan-id}
6.
rewrite ingress tag translate 2-to-1 dot1q vlan-id symmetric
7.
bridge-domain domain-number
8.
end
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode.enable
Example:
Device> enable
Step 1
•
Enter your password if prompted.
Enters global configuration mode.configure terminal
Example:
Device# configure terminal
Step 2
Enters the interface configuration mode for the interface connected to the
service-provider network. You can enter a physical interface or an
EtherChannel port channel.
interface <interface-number>
Step 3
Configures an Ethernet service instance on the interface and enters
Ethernet service configuration mode.
service instance id ethernet {evc-id}
Step 4
•
The Ethernet service instance identifier is a per-interface service
identifier and does not map to a VLAN.
Configures the encapsulation. Defines the matching criteria that maps
the ingress dot1q or untagged frames on an interface for the appropriate
service instance.
encapsulation dot1q {vlan-id}
second-dot1q {vlan-id}
Step 5
•
Use the second-dot1q keyword and the vlan-id argument to specify
the VLAN tags to be terminated on the subinterface.
Specifies the encapsulation adjustment that is to be performed on the
frame ingress to the service instance.
rewrite ingress tag translate 2-to-1
dot1q vlan-id symmetric
Step 6
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
75
VLAN Translation with QoS
Configuring 2:1 VLAN Translation

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English