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Supernetting: an Address Assignment and Aggregation Strategy (RFC1338)

IP.com Disclosure Number: IPCOM000002161D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 16 page(s) / 45K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V. Fuller: AUTHOR [+4]

Abstract

This memo discusses strategies for address assignment of the existing IP address space with a view to conserve the address space and stem the explosive growth of routing tables in default-route-free routers run by transit routing domain providers.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group V. Fuller

Request for Comments: 1338 BARRNet

T. Li

cisco

J. Yu

MERIT

K. Varadhan

OARnet

June 1992

Supernetting: an Address Assignment and Aggregation Strategy

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard. Distribution of this memo is

unlimited.

Abstract

This memo discusses strategies for address assignment of the existing

IP address space with a view to conserve the address space and stem

the explosive growth of routing tables in default-route-free routers

run by transit routing domain providers.

Table of Contents

Acknowledgements ................................................. 2

1. Problem, goal, and motivation ................................ 2

2. Scheme plan .................................................. 3

2.1. Aggregation and its limitations ............................ 3

2.2. Distributed network number allocation ...................... 5

3. Cost-benefit analysis ........................................ 6

3.1. Present allocation figures ................................. 7

3.2. Historic growth rates ...................................... 8

3.3. Detailed analysis .......................................... 8

3.3.1. Benefits of new addressing plan .......................... 9

3.3.2. Growth rate projections .................................. 9

4. Changes to Inter-Domain routing protocols .................... 11

4.1. General semantic changes ................................... 11

4.2. Rules for route advertisement .............................. 11

4.3. How the rules work ......................................... 13

4.4. Responsibility for and configuration of aggregation ........ 14

5. Example of new allocation and routing ........................ 15

5.1. Address allocation ......................................... 15

5.2. Routing advertisements ..................................... 17

6. Transitioning to a long term solution ........................ 18

7. Conclusions .................................................. 18

8. Recommendations .............................................. 18

9. Bibliography ................................................. 19

10. Security Considerations ...................................... 19

11. Authors' Addresses ........................................... 19

Acknowledgements

The authors wish to express ...