Cisco ASR1006 Configuration Guide - Page 377
Configuring MPLS Layer 2 VPNs, Finding Feature Information, Contents
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Configuring MPLS Layer 2 VPNs First Published: March 29, 2012 The Frame Relay to Asynchronous Transfer Mode (ATM) Bridged Interworking feature provides interoperability between the Frame Relay attachment virtual circuit (VC) and the ATM attachment VC that are connected to different provider edge (PE) routers. The bridged encapsulation corresponding to the bridged (Ethernet) interworking mechanism is used to enable this interoperability. The Ethernet frames are carried through the MPLS network using Ethernet over MPLS (EoMPLS). The interworking function is performed in the PE routers connected to the Frame Relay attachment VC and the ATM attachment VC based on RFC 2684 and RFC 2427. The xconnect support on Gigabit EtherChannel (GEC) Virtual Private Wire Service (VPWS) on ASR 1000 feature enables service providers to supply connectivity between customer sites with existing 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. Finding Feature Information Your software release may not support all the features documented in this module. For the latest information about features and caveats, see the release notes document pertaining to your platform and software release. To find information about the features documented in this module and to view a list of the releases in which each feature is supported, see the "Feature Information for Configuring MPLS Layer 2 VPNs" section on page 31. Use the Cisco Feature Navigator to find information about platform support and Cisco IOS and Cisco Catalyst operating system software image support. To access the Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required. Contents • Overview of L2VPN Interworking, page 2 • Prerequisites for Frame Relay DLCI-to-ATM AAL5SNAP Bridged Interworking, page 4 • Frame Relay DLCI-to-ATM AAL5SNAP Bridged Interworking, page 4 Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA