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

Synopsis

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