Internet Protocol Version 6 over MAPOS (Multiple Access Protocol Over SONET/SDH)
RFC 3572
Document | Type |
RFC - Informational
(July 2003; No errata)
Updated by RFC 8064
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Last updated | 2015-10-14 | ||
Stream | ISE | ||
Formats | plain text pdf htmlized bibtex | ||
Stream | ISE state | (None) | |
Consensus Boilerplate | Unknown | ||
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 3572 (Informational) | |
Telechat date | |||
Responsible AD | Thomas Narten | ||
IESG note | 2003-07-11: Published as RFC 3572 | ||
Send notices to | (None) |
Network Working Group T. Ogura Request for Comments: 3572 M. Maruyama Category: Informational NTT Network Innovation Labs T. Yoshida Werk Mikro Systems July 2003 Internet Protocol Version 6 over MAPOS (Multiple Access Protocol Over SONET/SDH) Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2003). All Rights Reserved. IESG Note This memo documents a way of carrying IPv6 packets over MAPOS networks. This document is NOT the product of an IETF working group nor is it a standards track document. It has not necessarily benefited from the widespread and in-depth community review that standards track documents receive. Abstract Multiple Access Protocol over SONET/SDH (MAPOS) is a high-speed link-layer protocol that provides multiple access capability over a Synchronous Optical NETwork/Synchronous Digital Hierarchy (SONET/SDH). This document specifies the frame format for encapsulating an IPv6 datagram in a MAPOS frame. It also specifies 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 IPv6 Neighbor Discovery messages. Ogura, et. al. Informational [Page 1] 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 [Page 2] RFC 3572 IPv6 over MAPOS July 2003 2. Frame Format for Encapsulating IPv6 Datagrams 2.1. Frame Format MAPOS uses the same HDLC-like framing as PPP-over-SONET, described in [3]. The MAPOS frame begins and ends with a flag sequence 01111110 (0x7E), and the MAPOS frame header contains address, control, and protocol fields. The address field contains a destination HDLC address. In MAPOS 16, the address field is extended to 16 bits, andShow full document text