Technology - IP Techniques 6 - MPLS RSVP-TE, Pseudowires, VPNs & NGNs


In this report we discuss RSVP-TE – the most important method of establishing the Multiprotocol Label Switched Path – and the MPLS techniques fast rerouting, pseudo-wires and Layer 2 VPNs. We also discuss the various approaches to Next Generation Networks, including the ambitious ITU and ETSI TISPAN standardisation efforts and Cisco’s practical techniques, which focus on multicast and upstream ‘Video 2.0’ delivery.

Table of Contents

  • 1. Synopsis
  • 2. RSVP-TE - establishing the Label Switched Path
    • 2.1 RSVP-TE standards
    • 2.2 The PATH message
    • 2.3 The RESV message
    • 2.4 Rerouting and upgrading and LSP
  • 3. MPLS Fast Rerouting - RFC 4090
    • 3.1 One-to-one backup – detour
    • 3.2 Facility backup - bypass tunnel
  • 4. MPLS Pseudo-Wires
  • 5. MPLS Layer 2 VPNs
    • 5.1 Label stacking
  • 6. Next Generation Networks
    • 6.1 IPv4, IPv6 and practicality
    • 6.2 Cisco’s NGN and IPTV
      • 6.2.1 Technology favours single network owner
      • 6.2.2 PIM-SSM and IGMPv2 multicast signalling
      • 6.2.3 Cisco’s Video 2.0
    • 6.3 Difficulty with non-Internet services
    • 6.4 The ITU’s NGN definition
    • 6.5 ECMA’s Public NGN
    • 6.6 ETSI-TISPAN’s NGN standards
    • 6.7 IETF NGN activity
  • 7. Related reports

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Broadband Fixed
Telecoms Infrastructure

Number of pages 11

Status Archived

Last updated 22 Jul 2008
Update History

Analyst: Robin Whittle

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