The IESG has received a request from the Layer 2 Virtual Private Networks WG (l2vpn) to consider the following document: - 'ARP Mediation for IP Interworking of Layer 2 VPN' <draft-ietf-l2vpn-arp-mediation-19.txt> as a Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2012-04-26. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract 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. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-l2vpn-arp-mediation/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-l2vpn-arp-mediation/ballot/ The following IPR Declarations may be related to this I-D: http://datatracker.ietf.org/ipr/1738/