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Loc/ID Split

Loc/ID Split. Joon-Suk KANG Graduate school of Information Science and Electrical Engineering, Kyushu University. Contents. Intro Address Model Address Modification Mapping Systems Address Registration Address Query Mobility. Intro. Purpose Mobility

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Loc/ID Split

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  1. Loc/ID Split Joon-Suk KANG Graduate school of Information Science and Electrical Engineering, Kyushu University.

  2. Contents • Intro • Address Model • Address Modification • Mapping Systems • Address Registration • Address Query • Mobility

  3. Intro • Purpose • Mobility • Reduction of routing table size in the "default-free zone" • Host Multi-Homing • Hybrid solution • Network based & Host based • Separation of edge network routing and backbone routing • Use GSE address format

  4. Locator Res. IF.No. End-node ID (EID) Address Model • GSE model Global Routing Goop End System Designator STP. • My model • Locator swapping is available at an edge router • EID is globally unique

  5. A EID1 B EID2 a EID1 NULL EID2 A EID1 b EID2 Address Modification Edge Network B : Local Net-Prefix = ‘b’ Edge Network A : Local Net-Prefix = ‘a’ ER B ER A BackBone Network EID 1 EID 2

  6. Mapping Systems • Global Locator -to- Local Locator • Edge Network provides ISP independent Net-prefix • Edge Network prefix is not globally routable • Global Locator -to- EID • MN wants to communicate by EID • MN doesn’t know the locator of CN but only EID of it • Local Locator -to- EID • Within local network

  7. Mapping Systems LLOC-to-GLOC mapping EID(local)-to-LLOC Edge Network B Edge Network A ER B ER A BackBone Network EID 1 Cache: EID-to-GLOC Cache: EID-to-GLOC EID 2 Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  8. Address Registration LLOC-to-GLOC mapping • MN1 detects EN A • MN1 gets LLOC • MN1 requests Loc.Server to DNS • MN1 registers its own LLOC to LS EID(local)-to-LLOC Edge Network B Edge Network A ER B ER A BackBone Network EID 1 Cache: EID-to-GLOC Cache: EID-to-GLOC EID 2 Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  9. b EID2 NULL EID1 Data Address Query LLOC-to-GLOC mapping • MN2 wants to communicate with MN1 • MN2 queries if MN1 is in the same Net. • MN2 sends a packet to ER B • ERB request EID’sLLOC EID(local)-to-LLOC EID(local)-to-LLOC Edge Network B Edge Network A ER B ER A BackBone Network EID 1 Cache: EID-to-GLOC Cache: EID-to-GLOC EID 2 Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  10. B b EID2 EID2 A NULL EID1 EID1 Data Data Address Query LLOC-to-GLOC mapping • ER B gets MN1’s LLOC • ER B requests the GLOC by the LLOC • ER B gets the GLOC • Caching this information • ER B modifies the packet and sends it EID(local)-to-LLOC EID(local)-to-LLOC Edge Network B Edge Network A ER B ER A BackBone Network EID 1 Cache: EID-to-GLOC Cache: EID-to-GLOC EID 2 Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  11. B B EID2 EID2 a A EID1 EID1 Data Data Address Query LLOC-to-GLOC mapping • ER A gets the packet • ER A updates cache table • ER A modifies the packet and sends it to MN 1 EID(local)-to-LLOC EID(local)-to-LLOC Edge Network B Edge Network A ER B ER A BackBone Network EID 1 Cache: EID-to-GLOC Cache: EID-to-GLOC EID 2 Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  12. EID 1 Mobility Edge Network B Edge Network A • MN 1 moves to Net C • MN1 detects its movement(Getting new LLOC) • MN1 updates LS • LS informs ER A of MN1’s movement • ER A updates its local server • ER A updates its cache ER B ER A BackBone Network Cache: EID-to-GLOC ER C EID 2 Edge Network C Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  13. EID 1 B B EID2 EID2 C A EID1 EID1 Data Data Mobility Edge Network B Edge Network A • ER A receives a packet destined to MN 1from ER B • ER A modifies the packet and forwards it to ER C • ER A sends a control packet to ER B to indicate MN1’s movement • ER B updates its cache • ER B sends packets to ER C directly ER B ER A BackBone Network Cache: EID-to-GLOC ER C EID 2 Edge Network C Expanded DNS: EID-to-LocatorServer LocatorServer: EID-to-LLOC

  14. Eid:162.0.0.5 Eid:2.3.1.1 4.0.0.1 3GPPProvider4.0.0.0/8 2.0.0.2 LLOC:4.2.1.1 XTR4 ProviderA2.0.0.0/8 XTR2 LLOC:2.3.1.1 Wi-FiProvider3.0.0.0/8 XTR3 LLOC:3.0.1.1 3.0.0.1 Eid:3.0.1.1 MSSet of (Eid, RLOC) Eid = LLOC

  15. Local MSSet of (Eid, LLOC)162.0.0.5:4.2.1.1 Local MSSet of (Eid, LLOC)164.2.3.1:2.3.1.1 Eid:162.0.0.5 4.0.0.1 Eid:164.2.3.1 3GPPProvider4.0.0.0/8 2.0.0.2 LLOC:4.2.1.1 XTR4 ProviderA2.0.0.0/8 XTR2 LLOC:2.3.1.1 Transport Wi-FiProvider3.0.0.0/8 M-LISP IP sub XTR3 LLOC:3.0.1.1 3.0.0.1 Eid:164.2.3.1 MAP requestMAP reply MSSet of (Eid, RLOC) Eid =PEid

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