Network Working Group A. Malis Request for Comments: 2615 Ascend Communications, Inc. Obsoletes: 1619 W. Simpson Category: Standards Track DayDreamer June 1999 PPP over SONET/SDH Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (1999). 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. This document describes the use of PPP over Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) circuits. This document replaces and obsoletes RFC 1619. See section 7 for a summary of the changes from RFC 1619. Table of Contents 1. Introduction .......................................... 2 2. Physical Layer Requirements ........................... 3 3. Framing ............................................... 4 4. X**43 + 1 Scrambler Description ....................... 4 5. Configuration Details ................................. 6 6. Security Considerations ............................... 6 7. Changes from RFC 1619 ................................. 7 8. Intellectual Property ................................. 7 9. Acknowledgments ....................................... 8 10. References ............................................ 8 11. Authors' Addresses .................................... 9 12. Full Copyright Statement .............................. 10 Malis & Simpson Standards Track