Cisco ASR 920 series Configuration Guide Ethernet Router

PurposeCommand or Action
Example:
Router(config-if-srv)# bridge-domain 3000
(Optional) Specify that encapsulation modification to occur on packets
at ingress.
rewrite ingress tag { pop {1 | 2} symmetric |
push dot1ad vlan-id [dot1q vlan-id] symmetric}
Step 8
Example:
Router(config-if-srv)# rewrite ingress
• pop 1—Pop (remove) the outermost tag.
• pop 2—Pop (remove) the two outermost tags.
tag pop 1 symmetric
•
symmetric—Configure the packet to undergo the reverse of the
ingress action at egress. If a tag is popped at ingress, it is pushed
Router(config-if-srv)# rewrite ingress
tag push dot1ad 30 symmetric
(added) at egress. This keyword is required for rewrite to
function properly.
• push—Adds a tag to an ingress packet.
• dot1ad vlan-id—Specifies the 802.1 do1ad tag. Valid Vlan ID
range is from 1 to 4094.
• dot1q vlan-id—Specifies the 802.1 do1q tag. Valid Vlan ID
range is from 1 to 4094.
Return to privileged EXEC mode.end
Example:
Router(config-if-srv)# end
Step 9
Configuration Examples
The example shows the C-UNI port.
interface GigabitEthernet0/3/7
ethernet dot1ad uni c-port
service instance 20 ethernet
encapsulation dot1q 20
rewrite ingress tag push dot1ad 30 symmetric
bridge-domain 20
The example shows the S-UNI port.
interface GigabitEthernet0/3/7
ethernet dot1ad uni s-port
service instance 20 ethernet
encapsulation default
rewrite ingress tag push dot1ad 30 symmetric
bridge-domain 20
The example shows the NNI port.
interface GigabitEthernet0/5/2
ethernet dot1ad nni
service instance 20 ethernet
encapsulation dot1ad 30
bridge-domain 20
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
411
Configuring IEEE 802.1ad
Configuring the IEEE 802.1ad on Service Instances

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English