Numbering Exchange Protocol (NEP) Specification
draft-omar-nep-04

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Document Type Active Internet-Draft (individual)
Authors Khaled Omar  , Luís Câmara 
Last updated 2017-12-30
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Internet Engineering Task Force (IETF)                    Khaled Omar
Internet-Draft                                             The Road
Intended status: Standards Track                               L. Camara
Expires: July 2, 2018                                  December 30, 2017
                                                       

                     Numbering Exchange Protocol (NEP)
                             Specification
                           draft-omar-nep-04

Status of this Memo

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Abstract

   This document specifies the Numbering Exchange Protocol (NEP), a
   routing protocol that combines three metrics: delay, bandwidth and
   number of hops.

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Table of Contents

   1. Introduction .................................................2
   2. Numbering Exchange Protocol (NEP) ............................2
   3. NEP Loop Prevention ..........................................5
   4. Subnet Advertisement .........................................6
   5. IANA Considerations ..........................................7
   6. Security Considerations ......................................7
   7. Informative References .......................................7
   8. Authors' Addresses ...........................................8

1.  Introduction

   The Numbering Exchange Protocol (NEP) is an Interior Gateway
   Protocol (IGP) that delivers IP packets between routers in the same
   Autonomous System (AS).

   Many IETF routing protocols, such as RIP, OSPF, IS-IS, and EIGRP,
   only use one metric each:

      a. RIP uses only the number of hops.
      b. OSPF uses only the cost (bandwidth).
      c. IS-IS uses only a default metric of 10 for all links.    
      d. EIGRP uses the least bandwidth and delay.

   NEP differs from other IGPs as it chooses its best path based on a
   composite metric of:

      a. Highest total bandwidth (for faster transmission).
      b. Number of hops (for less processing).
      c. Lowest total delay (for faster delivery).

   NEP builds a short IP routing table less than other IGPs.

   NEP uses a numbering method between routers that provides a fast
   topology exchange and learning process.

2. Numbering Exchange Protocol (NEP)

   The following figure shows 6 interconnected routers within an AS as
   follows:

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                                            3: 22, 2500, 15
                          3: 12, 3000, 30   3: 31, 2000, 10
                          3: 22, 1500, 25   3: 42, 3000, 30
                          3: 31, 1000, 20   3: 63, 8000, 100
                                  <-----  *  ----->                        
                     +-------------------(3)-------------------+
                     |         20       | *          10        |
                     |        1000      | |         2000       |
                     |                  v |                    |
                     |                    |                    |
   4: 22, 4000, 60   |                    |  5                 |
   4: 41, 1000, 20   |                    | 500                |
   4: 52, 1100,220 ^ |                  ^ |                    |
   4: 62, 6000, 90 | | 32,41,     12,   | | 31,                | ^
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