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Thomas C. Schmidt t.schmidt@ieee HAW Hamburg

Mobile Multicast Sender Support in PMIPv6 Domains with Base Multicast Deployment draft-schmidt-multimob-pmipv6-base-source-00. Thomas C. Schmidt t.schmidt@ieee.org HAW Hamburg . Objective of the Draft .

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Thomas C. Schmidt t.schmidt@ieee HAW Hamburg

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  1. Mobile Multicast Sender Support in PMIPv6 Domains with Base Multicast Deploymentdraft-schmidt-multimob-pmipv6-base-source-00 Thomas C. Schmidt t.schmidt@ieee.org HAW Hamburg

  2. Objective of the Draft • Clarify operations of mobile multicast sources at basic deployment of multicast support in PMIPv6 domains – i.e., source mobility in the scenario of draft-ietf-multimob-pmipv6-base-solution • Demystification: it works • Informational work: No new protocols needed • Pragmatic base approach as for listeners: • Suboptimal routes are price for simplicity

  3. DR or MLD Proxy MLD Proxy forwards locally and per Uplink Multicast Base Deployment with Mobile Source +-------------+ | Multicast | | Receivers | +-------------+ / \ +----+ +----+ |LMA1| |LMA2| Multicast Anchor +----+ +----+ LMAA1 | | LMAA2 | | \\ //\\ \\ // \\ \\ // \\ Unicast Tunnel \\ // \\ \\ // \\ \\ // \\ Proxy-CoA1 || || Proxy-CoA2 +----+ +----+ |MAG1| |MAG2| MLD Proxy +----+ +----+ | | | MN-HNP1 | | MN-HNP2 | MN-HNP3 MN1 MN2 MN3 Multicast Senders & Receivers

  4. Efficiency Issues • Routing is optimal for receivers at the sender’s MAG that belong to the same LMA, and for the fixed Internet • Routing detours via LMAs, whenever • Mobile listener is attached to another MAG • Mobile listener is associated with a different LMA • No way to suppress the forwarding uplink to LMA • Admission control/rate limiting may be desirable to prevent flooding LMAs

  5. Summary & Outcome • This draft explains source mobility in the base scenario • Traffic flows/aggregation may be optimal, but need not be • Draft extends minimal solution to senders • Does not exhaust the issues of source mobility Question to WG: Make this a quick informational source or Extend to optimized routing solution?

  6. Questions?

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