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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 16 Configuring MPLS Layer 2 VPNs
High-Level Data Link Control-Ethernet Interworking
Note Ethernet-to-EtherChannel over MPLS (Bridge) Interworking mode is also supported under VLAN.
High-Level Data Link Control-Ethernet Interworking
HDLC-Ethernet over MPLS is part of Any Transport over MPLS (AToM) solution. High-Level Link
Control (HDLC) and Ethernet are two link-layer transports that utilize the AToM architecture. This
section describes how these two transport types can communicate with each other using the AToM
framework.
Figure 16-7 shows the topology of the HDLC-Ethernet Interworking feature.
Figure 16-7 Topology of the HDLC-Ethernet Interworking Feature
The following features are supported from Cisco IOS XE Release 3.13.0S on the Cisco ASR 1000 Series
Aggregation Services Routers:
• HDLC-Ethernet Bridged-Mode Interworking
• HDLC-Ethernet Routed-Mode Interworking
• HDLC Encapsulation: CISCO
• Ethernet Encapsulation: Dot1Q, QinQ, Port Interface
Prerequisites for HDLC-Ethernet Interworking
Perform the following tasks to enable HDLC-Ethernet interworking:
• Configure a controller slot on Ethernet CE:
controller E1 2/0
channel-group 0 timeslots 1
no shutdown
interface Serial2/0:0
no shutdown
• Configure an Ethernet CE interface for Ethernet interworking:
bridge irb
Step 23
clock source internal
Specifies that the T1/E1 link uses the internal clock
from the interface.
Step 24
xconnect peer-loopback vc-id pw-class pe-class-name
Binds an attachment circuit to a pseudowire to
configure an AToM static pseudowire, specifies
MPLS as the tunneling method, and enters xconnect
configuration mode.
Command or Action Purpose
HDLC CE Ethernet CE
EthernetMPLSHDLC
PE PE
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