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Routing Aspects of IPv6 Transition (RFC2185)

IP.com Disclosure Number: IPCOM000002744D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 11 page(s) / 29K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Callon: AUTHOR [+2]

Abstract

This document gives an overview of the routing aspects of the IPv6 transition. It is based on the protocols defined in the document "Transition Mechanisms for IPv6 Hosts and Routers" [1]. Readers should be familiar with the transition mechanisms before reading this document.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 10% of the total text.

Network Working Group R. Callon

Request for Comments: 2185 Cascade Communications Co.

Category: Informational D. Haskin

Bay Networks Inc.

September 1997

Routing Aspects Of IPv6 Transition

Status of this memo

This memo provides information for the Internet community. This memo

does not specify an Internet standard of any kind. Distribution of

this memo is unlimited.

Abstract

This document gives an overview of the routing aspects of the IPv6

transition. It is based on the protocols defined in the document

"Transition Mechanisms for IPv6 Hosts and Routers" [1]. Readers

should be familiar with the transition mechanisms before reading this

document.

The proposals contained in this document are based on the work of the

Ngtrans working group.

1. TERMINOLOGY

This paper uses the following terminology:

node - a protocol module that implements IPv4 or IPv6.

router - a node that forwards packets not explicitly

addressed to itself.

host - any node that is not a router.

border router - a router that forwards packets across

routing domain boundaries.

link - a communication facility or medium over which

nodes can communicate at the link layer, i.e., the layer

immediately below internet layer.

interface - a node's attachment to a link.

address - an network layer identifier for an interface or

a group of interfaces.

neighbors - nodes attached to the same link.

routing domain - a collection of routers which coordinate

routing knowledge using a single routing protocol.

routing region (or just "region") - a collection of routers

interconnected by a single internet protocol (e.g. IPv6)

and coordinating their routing knowledge using routing

protocols from a single internet protocol stack. A

routing region may be a superset of a routing domain.

tunneling - encapsulation of protocol A within protocol B,

such that A treats B as though it were a datalink layer.

reachability information - information describing the set of

reachable destinations that can be used for packet

forwarding decisions.

routing information - same as reachability information.

address prefix - the high-order bits in an address.

routing prefix - address prefix that expresses destinations

which have addresses with the matching address prefixes.

It is used by routers to advertise what systems they are

capable of reaching.

route leaking - advertisement of network layer reachability

information across routing region boundaries.

2. ISSUES AND OUTLINE

This document gives an ove...