I-D Action: draft-ietf-l2vpn-arp-mediation-17.txt
internet-drafts@ietf.org Fri, 17 June 2011 14:23 UTC
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Subject: I-D Action: draft-ietf-l2vpn-arp-mediation-17.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Layer 2 Virtual Private Networks Working Group of the IETF. Title : ARP Mediation for IP Interworking of Layer 2 VPN Author(s) : Himanshu Shah Eric Rosen Giles Heron Vach Kompella Filename : draft-ietf-l2vpn-arp-mediation-17.txt Pages : 33 Date : 2011-06-15 The Virtual Private Wire Service (VPWS) [RFC4664] provides point-to-point connections between pairs of Customer Edge (CE) devices. It does so by binding two Attachment Circuits (each connecting a CE device with a Provider Edge, PE, device) to a pseudowire (connecting the two PEs). In general, the Attachment Circuits must be of the same technology (e.g., both Ethernet, both ATM), and the pseudowire must carry the frames of that technology. However, if it is known that the frames' payload consists solely of IP datagrams, it is possible to provide a point-to-point connection in which the pseudowire connects Attachment Circuits of different technologies. This requires the PEs to perform a function known as "ARP Mediation". ARP Mediation refers to the process of resolving Layer 2 addresses when different resolution protocols are used on either Attachment Circuit. The methods described in this document are applicable even when the CEs run a routing protocol between them, as long as the routing protocol runs over IP. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-l2vpn-arp-mediation-17.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ This Internet-Draft can be retrieved at: ftp://ftp.ietf.org/internet-drafts/draft-ietf-l2vpn-arp-mediation-17.txt
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