Cisco ASR 901 User Manual

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Cisco ASR 901 Aggregation Services Router Command Reference Guide
OL-26031-07
Chapter 1 CLI Command Reference
encapsulation dot1ad
encapsulation dot1ad
To define the matching criteria to be used in order to map single-tagged 802.1ad frames ingress on an
interface to the appropriate service instance, use the encapsulation dot1ad command in the service
instance mode. To delete the matching criteria to map 802.1ad frames ingress on an interface to the
appropriate service instance, use the no form of this command.
encapsulation dot1ad {vlan-id[,vlan-id[-vlain-id]] | any}
no encapsulation dot1ad
Syntax Description
Command Default No matching criteria are defined.
Command Modes Service instance
Command History
Usage Guidelines An interface with encapsulation dot1ad causes the router to categorize the interface as an 802.1ad
interface. This causes special processing for certain protocols and other features:
• MSTP uses the IEEE 802.1ad MAC STP address instead of the STP MAC address.
• Certain QoS functions may use the Drop Eligibility (DE) bit of the IEEE 802.1ad tag.
The encapsulation dot1ad command requires the interface to be of dot1ad nni (network-network
interface) port.
Related Commands
vlan-id VLAN ID, integer in the range 1 to 4094. Hyphen must be entered to separate the
starting and ending VLAN ID values that are used to define a range of VLAN IDs.
(Optional) Comma must be entered to separate each VLAN ID range from the next
range.
any Matches any packet with one or more VLANs.
Release Modification
15.1(2)SNG Support for this command was introduced on the Cisco ASR 901 router.
Command Description
encapsulation dot1q Defines the matching criteria to map 802.1Q frames ingress on an interface
to the appropriate service instance.

Cisco ASR 901 Specifications

General

Brand	Cisco
Model	ASR 901
Category	Network Router
Language	English