Protocol Action: 'Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Peer-to-Peer Adaptation Layer (M2PA)' to Proposed Standard

The IESG has approved the following document:

- 'Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Peer-to-Peer 
   Adaptation Layer (M2PA) '
   <draft-ietf-sigtran-m2pa-13.txt> as a Proposed Standard

This document is the product of the Signaling Transport Working Group. 

The IESG contact persons are Jon Peterson and Allison Mankin.

Technical Summary

This document provides an IP-based surrogate for MTP2, a link-layer protocol 
used in SS7 networks, in order to enable IP-based telephony signaling points t
use MTP3 over IP networks in the same fashion that they use MTP3 over MTP2 in 
SS7 networks. The MTP2 User Peer-to-Peer Adaption Layer (M2PA) runs over SCTP,

and relies on SCTP assocations to simulate SS7 links. This protocol would be 
used by signaling gateways that interwork between SS7 and IP networks, or 
possibly native IP replications of SS7 endpoints.

Working Group Summary

The SIGTRAN working group supported the advancement of the document, and 
provided significant inputs in the final stages of its development.

Protocol Quality

This specification was reviewed for the IESG by Jon Peterson.

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