Cisco ASR 9000 Series Reference Manual page 21

Ethernet Interfaces Commands
• Certain QoS functions may use the Drop Eligibility (DE) bit of the IEEE 802.1ad tag.
Examples The following example shows how to map single-tagged 802.1ad ingress frames to a service instance:
RP/0/RSP0/CPU0:router(config-subif)# encapsulation dot1ad 100 dot1q 20
Related Commands
Command
encapsulation default, on page 4
encapsulation dot1q, on page 8
encapsulation untagged, on page 12
Cisco ASR 9000 Series Aggregation Services Router VPN and Ethernet Services Command Reference, Release
Description
Configure the default service instance on a port.
Defines the matching criteria to map 802.1Q frames ingress on an
interface to the appropriate service instance.
Defines the matching criteria to map untagged ingress Ethernet
frames on an interface to the appropriate service instance.
encapsulation dot1ad dot1q
6.1.x
7