encapsulation untagged
To define the matching criteria to map untagged ingress Ethernet frames on an interface to the appropriate
service instance, use the encapsulation untagged command in the Interface configuration mode. To delete
the matching criteria to map untagged ingress Ethernet frames on an interface to the appropriate service
instance, use the no form of this command.
encapsulation untagged [ingress source-mac mac-address]
no encapsulation untagged
Syntax Description
(Optional) Performs MAC-based matching.ingress source-mac
Specifies the source MAC address.
mac-address
Command Default
No matching criteria are defined.
Command Modes
Interface configuration
Command History
ModificationRelease
This command was introduced.Release 3.7.2
The ingress source-mac keyword was added.Release 3.9.1
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
Only one service instance per port is allowed to have untagged encapsulation. The reason is to be able to
unambiguously map the incoming frames to the service instance. However, it is possible for a port that hosts
an service instance matching untagged traffic to host other service instances that match tagged frames. Only
one encapsulation command may be configured per service instance.
Only one subinterface may be configured as encapsulation untagged. This interface is referred to as the
untagged subinterface or untagged EFP (incase of an L2 interface).
The untagged subinterface has a higher priority than the main interface; all untagged traffic, including L2
protocol traffic, passes through this subinterface rather than the main interface. If the ethernet filtering
command is applied to a main interface having an untagged subinterface, the filtering is applied to the untagged
subinterface.
Examples
The following example shows how to map untagged ingress Ethernet frames to a service instance:
Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release
6.1.x
12
Ethernet Interfaces Commands
encapsulation untagged
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