Cisco ASR 920 series Configuration Guide Ethernet Router

Restrictions
•
Transparent CFM is not supported with Asymmetric EFP.
•
Q-in-Q encapsulation type in the EFP is not supported. Frames with dot1q greater than value 1 is
supported. Dot1ad is not supported.
•
Trunk-EFPs usage is not supported
•
2 Tag push or pop is not supported.
•
Translate option, in VLAN Translation, is not supported with asymmetric rewrite rules.
•
External Loopback operations are not supported.
•
Ignoring MLD reports (IPv6) is not supported
•
When the encapsulation is untagged in one of the EFPs, for example if rewrite egress tag pop 1 is
configured on the EFP, then rewrite ingress tag pop 1 will cancel the rewrite rule and the packet is sent
without rewrites.
•
If there are different EFPs in the same BD that are carrying unicast and multicast traffic, then MAC
learning should be disabled on the multicast EFP using disable-learning command.
•
Asymmetric rewrite configuration fails for the priority-tagged encapsulation.
Procedure
enable
configure terminal
interface TenGigabitEthernet0/0/26
no ip address
service instance 1 ethernet
encapsulation dot1q 30
rewrite ingress tag pop 1
igmp ingress ignore-rewrite
bridge-domain 30
end
Configuration Examples
Example for Configuring a Service Instance
Router (config)# interface gigabitethernet0/1
Router (config-if)# service instance 22 Ethernet ether
Router (config-if-srv)# encapsulation dot1q 10
Router (config-if-srv)# bridge-domain 10
Example for Encapsulation Using a VLAN Range
Router (config)# interface gigabitethernet0/1
Router (config-if)# service instance 22 Ethernet
Router (config-if-srv)# encapsulation dot1q 22-44
Router (config-if-srv)# bridge-domain 10
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
25
Ethernet Virtual Connections Configuration
Configuration Examples

Cisco ASR 920 series Specifications

General

Brand	Cisco
Model	ASR 920 series
Category	Network Router
Language	English