RFC 3572 (rfc3572) - Page 2 of 14

Internet Protocol Version 6 over MAPOS (Multiple Access Protocol Over SONET/SDH)

Alternative Format: Original Text Document

RFC 3572                    IPv6 over MAPOS                    July 2003


Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  Frame Format for Encapsulating IPv6 Datagrams. . . . . . . . .  3
       2.1.  Frame Format . . . . . . . . . . . . . . . . . . . . . .  3
       2.2.  Maximum Transmission Unit (MTU). . . . . . . . . . . . .  3
       2.3.  Destination Address Mapping. . . . . . . . . . . . . . .  4
             2.3.1.  Unicast. . . . . . . . . . . . . . . . . . . . .  4
            2.3.2.  Multicast . . . . . . . . . . . . . . . . . . . .  4
   3.  Interface Identifier . . . . . . . . . . . . . . . . . . . . .  6
   4.  Duplicate Address Detection. . . . . . . . . . . . . . . . . .  8
   5.  Source/Target Link-layer Address Option. . . . . . . . . . . .  9
   6.  Security Considerations. . . . . . . . . . . . . . . . . . . . 10
       6.1.  Issues concerning Link-layer Addresses . . . . . . . . . 10
             6.1.1.  Protection against fraudulent reception
                     of traffic . . . . . . . . . . . . . . . . . . . 10
             6.1.2.  Protection against improper traffic. . . . . . . 11
       6.2.  Uniqueness of Interface Identifiers. . . . . . . . . . . 11
   7.  References. . . .  . . . . . . . . . . . . . . . . . . . . . . 12
   8.  Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 13
   9.  Full Copyright Statement . . . . . . . . . . . . . . . . . . . 14

1.  Introduction

   Multiple Access Protocol over SONET/SDH (MAPOS) [1][2] is a high-
   speed link-layer protocol that provides multiple access capability
   over SONET/SDH.  Its frame format is based on the HDLC-like (High
   Level Data Link Control) framing [3] for PPP.  A component called a
   "Frame Switch" [1] allows multiple nodes (hosts and routers) to be
   connected together in a star topology to form a LAN.  Using long-haul
   SONET/SDH links, the nodes on such a "SONET-LAN" can span a wide
   geographical area.

   This document specifies the frame format for encapsulating an
   Internet Protocol version 6 (IPv6) [4] datagram in a MAPOS frame, the
   method of forming IPv6 interface identifiers, the method of detecting
   duplicate addresses, and the format of the Source/Target Link-layer
   Addresses option field used in Neighbor Discovery messages such as
   Router Solicitation, Router Advertisement, Neighbor Solicitation,
   Neighbor Advertisement, and Redirect messages.

   In the remainder of this document, the term "MAPOS" is used unless
   the distinction between MAPOS version 1 [1] and MAPOS 16 [2] is
   required.







Ogura, et. al.               Informational
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