Gigabit Etherchannel For Virtual Private Wire Service; Supported Modes; Gec Like-To-Like Mode; Any-To-Gec Mode - Cisco ASR1002 - ASR 1002 Router Software Configuration Manual

Configuring MPLS Layer 2 VPNs

Gigabit EtherChannel for Virtual Private Wire Service

GEC for AToM is a solution for a VPWS transporting Layer 2 packets over an MPLS backbone with
GEC.
This feature enables service providers to supply connectivity between customer sites having data link
layer (Layer 2) networks, by using a single, integrated, packet-based network infrastructure—a Cisco
MPLS network. Instead of separate networks with separate network management environments, service
providers can deliver Layer 2 connections over an MPLS backbone.

Supported Modes

The following modes are supported in the GEC for VPWS feature:
•
•

GEC Like-to-Like Mode

The GEC Like-to-Like mode allows switching of data between two physical interfaces in which the two
segments (CE1-PE1 and CE2-PE2, as shown in
The GEC Like-to-Like mode has the following features:
•
•
Figure 3
GEC-CE1
Customer
Site
GEC Like-to-Like Mode, page 17
Any-to-GEC Mode, page 18
EtherChannel-to-EtherChannel over MPLS (Bridged) Interworking, page 19
EtherChannel-to-EtherChannel over MPLS (Routed) Interworking, page 21
Topology of the GEC Like-to-Like Mode for the GEC for VPWS Feature
GEC-PE1
ASR1K
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
Gigabit EtherChannel for Virtual Private Wire Service
Figure 3) are both of GEC type.
Xconnect
MPLS
GEC-PE2
ASR1K
GEC-CE2
Customer
Site
17