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
Содержание ASR 920 series
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