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SGM * Support in Mobile IP

SGM * Support in Mobile IP. draft-lee-sgm-support-mobileip-00.txt. Proposal for a WG document. Jiwoong Lee Korea Telecom M.com porce@computer.org. * SGM: “ Small Group Multicast ” in XCAST BOF. Dec 2000, 49 th IETF. HA2. HA3. HA1. FA. HA4. HA5. HA. FA.

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SGM * Support in Mobile IP

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  1. SGM* Support in Mobile IP draft-lee-sgm-support-mobileip-00.txt Proposal for a WG document Jiwoong LeeKorea Telecom M.com porce@computer.org *SGM: “Small Group Multicast” in XCAST BOF Dec 2000, 49th IETF

  2. HA2 HA3 HA1 FA HA4 HA5 HA FA Scalability Problemsin Mobile IP Multicast Nested Encap. A-mass-of-multicast Internet MN1-a CN Nested Encap. MN1-b Network Congestion! TunnelConvergence* MN1 MN2 Internet Internet CN MN3 MN4 MN5 Network Congestion! *Refer [7] in I-D

  3. Video Server SGM SGM Router Router Router SGM Router Router Router Router Xcast BOF draft-boivie-sgm-01.txtSmall Group Multicast SGM Datagram IP Header SGM Header UDP Header Payload “Level 3.5” Header Unicast Addresses of Destination Nodes No Tree. Based on Unicast Routing Adv: Suitable for Large number & Small size Groups Xcast: Xcast-enabled router

  4. FA1 HA FA2 IM packetfrom HA to FA COA MN (I) Dest: FA1 SGM list: MN1 MN2 Mobile IP Tunneling SGM IM packet Internet MN1 CN MN2 Dest: FA2 SGM list: MN3 MN3

  5. FA2 FA1 SGM HA IM packetfrom HA to FA COA MN (II) SGM list: MN1 MN2 MN3 SGM list: FA1 FA2 Dest: FA1 SGM list: MN1 MN2 IM packet SGM Internet MN1 CN MN2 Dest: FA2 SGM list: MN3 MN3 When Mobile IP supports“SGM-Tunneling”

  6. Xcast HA Xcast Xcast IM packet from HA to CL COA MN • SGM has not fully specified “SGM-IM” yet. SGM list: MN1 MN2 MN3 IM packet Internet MN1 CN MN2 MN3

  7. Solve out Scalability Problem Suitable for upcoming 3G Cellular Networks Flexible Multicast Transmission Does support SGM in mobile IP Violations of generic Mobile IP Spec. FA MAY generate ICMP error messages Class D info in a SGM header SGM is in progress. We are now discussing this matter. MTU gets smaller Pros. Cons

  8. SGM Support in Mobile IP draft-lee-sgm-support-mobileip-00.txt Hereby I propose this I-D for a WG document. Many remarks please! Jiwoong LeeKorea Telecom M.com porce@computer.org Dec 2000, 49th IETF Note: Some contents here are augmented in addition to the proposed I-D.

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