Cisco ASR 920 Series Configuration Manual Ethernet Router page 429

Configuring IEEE 802.1ad
Command or Action
Example:
Router(config-if-srv)# bridge-domain 3000
Step 8 rewrite ingress tag { pop {1 | 2} symmetric |
push dot1ad vlan-id [dot1q vlan-id] symmetric}
Example:
Router(config-if-srv)# rewrite ingress
tag pop 1 symmetric
Router(config-if-srv)# rewrite ingress
tag push dot1ad 30 symmetric
Step 9
end
Example:
Router(config-if-srv)# end
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
Configuring the IEEE 802.1ad on Service Instances
Purpose
(Optional) Specify that encapsulation modification to occur on packets
at ingress.
• pop 1—Pop (remove) the outermost tag.
• pop 2—Pop (remove) the two outermost tags.
• symmetric—Configure the packet to undergo the reverse of the
ingress action at egress. If a tag is popped at ingress, it is pushed
(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.
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
411