RFC - 2491

IPv6 over Non-Broadcast Multiple Access (NBMA) networks

Original:	ftp://ftp.isi.edu/in-notes/rfc2491.txt
Authors:	G. Armitage [Lucent Technologies], P. Schulter [Bright Tiger Technologies], M. Jork [Digital Equipment GmbH], G. Harter [Compaq]
Date:	January 1999
Category:	Proposed Standard

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Referred by:	14 RFC
Refers to:	16 RFC

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Status

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

This document describes a general architecture for IPv6 over NBMA networks. It forms the basis for subsidiary companion documents that describe details for various specific NBMA technologies (such as ATM or Frame Relay). The IPv6 over NBMA architecture allows conventional host-side operation of the IPv6 Neighbor Discovery protocol, while also supporting the establishment of 'shortcut' NBMA forwarding paths when dynamically signaled NBMA links are available. Operations over administratively configured Point to Point NBMA links are also described.

Dynamic NBMA shortcuts are achieved through the use of IPv6 Neighbor Discovery protocol operation within Logical Links, and inter-router NHRP for the discovery of off-Link NBMA destinations. Both flow- triggered and explicitly source-triggered shortcuts are supported.

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