Name: draft-ietf-l2vpn-arp-mediation-00
Title: ARP Mediation for IP Interworking of Layer 2 VPN
State: Active
Authors: Himanshu Shah
Group: Layer 2 Virtual Private Networks (l2vpn)
Date: 2004-10-04
The VPWS service [L2VPN Framework] 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 draft-ietf-l2vpn-arp-mediation-00.txt connects Attachment
Circuits of different technologies. This requires the PEs to perform a
function known as "ARP Mediation". This document specifies the ARP
Mediation function, and specifies the encapsulation used to carry the IP
datagrams on the Pseudowires when ARP mediation is used.
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