Technology - IP Routing & Addressing Crisis 5 - LISP - Locator-ID-Separation


We discuss and compare three proposals for a new routing and addressing architecture to provide multihoming, traffic engineering and portability for end-user networks without directly involving the BGP routing system: LISP-NERD, LISP-CONS and LISP-ALT. The Locator Identifier Separation Protocol is the best known of the ITR-ETR proposals, also known as ‘map and encapsulate’ systems.

Table of Contents

  • 1. SynopsiS
  • 2. Introduction
    • 2.1 Similarities between the proposals
    • 2.2 Differences between the proposals
  • 3. Postal redirection analogy
    • 3.1 Identifier
    • 3.2 Locator
    • 3.3 Central database
    • 3.4 Tunneling in envelopes
    • 3.5 Portability and multihoming
    • 3.6 Tunneling and envelopes
    • 3.7 Costs and benefits of encapsulation
  • 4. LISP
    • 4.1 Connectivity from non-upgraded networks
      • 4.1.1 Proxy Tunnel Routers
    • 4.2 Multiple RLOCS
    • 4.3 Weight and Priority
    • 4.4 Reachability and ICMP
    • 4.5 Multihoming, traffic engineering and portability
    • 4.6 LISP 1 and 1.5
    • 4.7 LISP 2.x
    • 4.8 LISP 3.x
      • 4.8.1 LISP-NERD
      • 4.8.2 LISP-CONS
      • 4.8.3 LISP-ALT
      • 4.8.4 LISP-ALT most promising
  • 5. Related reports

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Telecoms Infrastructure

Number of pages 12

Status Archived

Last updated 12 Dec 2007
Update History

Analyst: Robin Whittle

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