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Transmission of IPv6 Packets over ARCnet Networks (RFC2497)

IP.com Disclosure Number: IPCOM000003078D
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 4 page(s) / 9K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

I. Souvatzis: AUTHOR

Abstract

This memo specifies a frame format for transmission of IPv6 [IPV6] packets and the method of forming IPv6 link-local and statelessly autoconfigured addresses on ARCnet networks. It also specifies the content of the Source/Target Link-layer Address option used by the Router Solicitation, Router Advertisement, Neighbor Solicitation, Neighbor Advertisement and Redirect messages described in [DISC], when those messages are transmitted on an ARCnet.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 29% of the total text.

Network Working Group I. Souvatzis

Request for Comments: 2497 The NetBSD Project

See Also: 1201 January 1999

Category: Standards Track

Transmission of IPv6 Packets over ARCnet Networks

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.

1. Introduction

This memo specifies a frame format for transmission of IPv6 [IPV6]

packets and the method of forming IPv6 link-local and statelessly

autoconfigured addresses on ARCnet networks. It also specifies the

content of the Source/Target Link-layer Address option used by the

Router Solicitation, Router Advertisement, Neighbor Solicitation,

Neighbor Advertisement and Redirect messages described in [DISC],

when those messages are transmitted on an ARCnet.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL

NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL"

in this document are to be interpreted as described in RFC 2119

[KWORD].

2. Frame Format

IPv6 packets are link layer fragmented and reassembled according to

[PHDS]. A brief but sufficient discussion of this fragmentation

method can be found in [ARCIPV4].

The protocol ID (System Code in ARCnet terminology) assigned to IPv6

is C4 hexadecimal.

3. Maximum Transmission Unit

The maximum IPv6 packet length possible using this encapsulation

method is 60480 octets. Since this length is impractical because of

its worst case transmission time of several seconds, all ARCnet

implementations on a given ARCnet network should agree on a smaller

value.

The default MTU for IPv6 [IPV6] packets on an ARCnet is 9072 octets.

In the presence of a router, this size MAY be changed by a Router

Advertisement [DISC] containing an MTU option. If a Router

Advertisement is received with an MTU option specifying an MTU larger

than 60480, or larger than a manually configured value less than

60480, that MTU option may be logged to system management but MUST be

otherwise ignored.

If no router is available, the local MTU MUST be left at 9072 or MUST

be manually configured to the same different value on all connected

stations.

Im...