Rewrite Configuration Model For 802.1Ad Ports - Cisco ASR 920 Series Configuration Manual Ethernet Router

Configuring IEEE 802.1ad

Rewrite Configuration Model for 802.1ad Ports

The table describes the rewrite configuration supported on service instances for the C-UNI, S-UNI and NNI
ports
Port
Bridge Domain
C-UNI
S-UNI
NNI
Trunk EFP
C-UNI
S-UNI
NNI
Cross Connect
C-UNI
S-UNI
NNI
Information About 802.1ad
802.1ad Ports
In 802.1ad, a port is configured as either a customer user-network interface (C-UNI), a service-provider UNI
(S-UNI), or a network-to-network interface (NNI). Only Layer 2 interfaces can be 802.1ad ports.
• C-UNI—an be either an access port or an 802.1Q trunk port. The port uses the customer bridge addresses.
Rewrite
Push
Pop
Push
Pop
NA
Pop
Push
Push
NA
To configure a C-UNI port, enter the ethernet dot1ad uni c-port interface configuration command.
Rewrite Configuration Model for 802.1ad Ports
Ingress Direction
Supported
Supported
Not supported
Supported
NA
Supported
Not supported
Supported
NA
Carrier Ethernet Configuration Guide (Cisco ASR 920 Series)
Egress Direction
Not supported
Not supported
Supported
Supported
NA
Not supported
Supported
Not supported
NA
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