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Comparison of Multicast Mobility Route Optimization

Comparison of Multicast Mobility Route Optimization. draft-von-hugo-multimob-ro-compa-00.txt AMT-approach (WG MBONED) and proposed drafts within WG MultiMob D. von Hugo and H. Asaeda @IETF-80. Requirements and charter demand. Issues in requirements draft deng-multimob-pmip6-requirements-03

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Comparison of Multicast Mobility Route Optimization

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  1. Comparison of Multicast Mobility Route Optimization draft-von-hugo-multimob-ro-compa-00.txt AMT-approach (WG MBONED) and proposed drafts within WG MultiMob D. von Hugo and H. Asaeda @IETF-80

  2. Requirements and charter demand • Issues in requirements draft deng-multimob-pmip6-requirements-03 • Conservation of (radio and backhaul) network resources • E.g. in terms of tunnel convergence, direct (local) routing option, dedicated multicast LMA option, … • Set of ‘agreed on’ requirements to design/evaluate proposed approaches for extensions/modification • Multimob base protocol(s) • Adaption of PMIPv6 as referred to in Multimob base protocol • IGMP/MLD extension (after completion of MLD parameter tuning) • Updated Charter demands • Jun 2011 - Initial version of document on PMIPv6 routing optimizations to avoid tunnel convergence problem

  3. How to achieve PMIPv6 routing optimizations • Is there already an existing protocol (proposal)? • E.g. WG MBONED approach AMT • If not which approach would solve the problem best? • Comparison of drafts • I-D.asaeda-multimob-pmip6-extension • I-D.sijeon-multimob-mms-pmip6 • I-D.zuniga-multimob-smspmip

  4. AddressingPMIPv6 routing optimizations to avoid tunnel convergence problem Native Multicast Internet MC source AMT relay@LMA AMT relay@LMA AMT-Tunnel PMIP6 domain AMT GW@n-MAG AMT GW@p-MAG MN1 MN2 I-D.ietf-mboned-auto-multicast AMT approach of WG MBONED (Multicast Backbone Deployment) applied to PMIPv6

  5. AddressingPMIPv6 routing optimizations to avoid tunnel convergence problem • AMT (Automatic Multicast communication without explicit Tunnels) • may be applied to isolated multicast-enabled sites or hosts, attached to a network without native multicast support - without need for any manual configuration. • Analogy between AMT-Gateway/-Relay and PMIP MAG/LMA • also implies additional complexity • Adaptation of this scheme to PMIPv6 domains means additional interface and tunnel beside existing MAG-LMA relation • Local routing within PMIP domain seems to be more efficient via MLD

  6. AddressingPMIPv6 routing optimizations to avoid tunnel convergence problem MC source Internet MR@LMA2 MLDproxy@LMA1 Local MC source M-Tunnel PMIP6 domain MR@n-MAG MLDproxy@p-MAG MN1 MN2 I-D.asaeda-multimob-pmip6-extension proposes for a PMIPv6 domain the (dynamic or static) establishment of a common dedicated multicast tunnel. Both MAG and LMA may be operated as MLD proxy or multicast router. 3 different scenarios Open question: > 1 LMA per MN?

  7. AddressingPMIPv6 routing optimizations to avoid tunnel convergence problem UC source Internet MR LMA PMIP6 domain Local MC source n-MAG p-MAG MN1 MN2 I-D.sijeon-multimob-mms-pmip6 describes a direct or local routing approach applicable to a network topology where multicast content delivery source is located in the same network such that the optimal multicast service delivery path is not via LMA. Support of optimal local (direct) routing uses a direct connection between MLD proxy at MAG and a Multicast router separated from LMA.

  8. AddressingPMIPv6 routing optimizations to avoid tunnel convergence problem MC source Internet DM-LMA LMA PMIP6 domain n-MAG p-MAG MN1 MN2 I-D.zuniga-multimob-smspmip proposes a multicast traffic replication mechanism by introducing a Dedicated Multicast LMA (M-LMA) (allowing also a Hybrid U/M one) as topological anchor point for multicast traffic. Protocol complexity is reduced in terms of time consuming tunnel set-up by definition of pre- or post-configured tunnels between LMA and MAG.

  9. Comparison of proposed approaches

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