RFC 2823 (rfc2823) - Page 1 of 28

PPP over Simple Data Link (SDL) using SONET/SDH with ATM-like framing

Network Working Group                                         J. Carlson
Request for Comments: 2823                        Sun Microsystems, Inc.
Category: Experimental                                        P. Langner
                              Lucent Technologies Microelectronics Group
                                                   E. Hernandez-Valencia
                                                           J. Manchester
                                                     Lucent Technologies
                                                                May 2000


                    PPP over Simple Data Link (SDL)
                 using SONET/SDH with ATM-like framing

Status of this Memo

   This memo defines an Experimental Protocol for the Internet
   community.  It does not specify an Internet standard of any kind.
   Discussion and suggestions for improvement are requested.
   Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   The Point-to-Point Protocol (PPP) [1] provides a standard method for
   transporting multi-protocol datagrams over point-to-point links, and
   RFCs 1662 [2] and 2615 [3] provide a means to carry PPP over
   Synchronous Optical Network (SONET) [4] and Synchronous Digital
   Hierarchy (SDH) [5] circuits.  This document extends these standards
   to include a new encapsulation for PPP called Simple Data Link (SDL)
   [6].  SDL provides a very low overhead alternative to HDLC-like
   encapsulation, and can also be used on SONET/SDH links.

Applicability

   This specification is intended for those implementations that use PPP
   over high speed point-to-point circuits, both with so-called "dark
   fiber" and over public telecommunications networks.  Because this
   enhanced PPP encapsulation has very low overhead and good hardware
   scaling characteristics, it is anticipated that significantly higher
   throughput can be attained when compared to other possible SONET/SDH
   payload mappings, and at a significantly lower cost for line
   termination equipment.






Carlson, et al.               Experimental