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draft-boutros-l2vpn-vpls-active-active-00.txt

draft-boutros-l2vpn-vpls-active-active-00.txt. AA-VPLS - Signalling. Site6. PE3 signals that its upstream label for MHID=3 is 30/31. Any remote PE in the same VPLS instance will recognize that any packet coming from PE3 with the next label after the PW label =30/31 is coming from MHID3.

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draft-boutros-l2vpn-vpls-active-active-00.txt

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  1. draft-boutros-l2vpn-vpls-active-active-00.txt

  2. AA-VPLS - Signalling Site6 PE3 signals that its upstream label for MHID=3 is 30/31. Any remote PE in the same VPLS instance will recognize that any packet coming from PE3 with the next label after the PW label =30/31 is coming from MHID3. It will thus learn the SMAC as being in MHID3. It will not reinject the packet into MHID3 M3 M30 B3 MHID 3 Site3 AC300 AC3 AC30 PE3 PE30 PE3’s upstream label for MHID3 = 30, 31 Site2 AC2 PE2 M2 PE1 PE10 AC5 AC4 AC1 AC10 Site4 Site5 M5 MHID 1 B1 Site1 M1

  3. AA-VPLS – Unknown/Mcast PE3 and PE30 signaled the MH-Site-ID3 and upstream labels. PE3 and PE1 are DF for Site 3 and Site 1 and PE3 is DF for site10 Mcast Packet with src MAC M3 arrives at PE3. PE3 floods packet to AC40 and AC13. PE3encap packet with upstream label (Flood to DF at MH Sites) and flood over PWs or over p2mpLSP to PE1, 2, 10, 30. On PE1,2,10,30 learning of M3 will be against MH virtual port (MHID3). PE1, floods packet to AC4 and AC1 (DF for Site1). PE10 floods only to AC5 and PE2 to AC2. On PE30, learning will be against MH Virtual port. PE30, floods packet to AC300. Site6 M3 [S: M3, D: M1] M30 B3 MHID 3 Site3 [S: M3, D: M1] AC300 [S: M3, D: M1] AC3 AC30 PE3 PE30 Site2 AC2 [S: M3, D: M1] PE2 M2 31 - [S: M3, D: M1] PE1 PE10 AC5 [S: M3, D: M1] AC4 [S: M3, D: M1] AC1 AC10 [S: M3, D: M1] Site4 Site5 M5 MHID 1 B1 Site1 M1

  4. AA-VPLS – Known Unicast Site6 M3 [S: M3, D: M1] M30 Assume PE3 and PE1 are DF for Site 3 and Site 1. Packet with src MAC M3 arrives at PE30. PE30encap packet with upstream label (Unicast Packet) and send packet over PW PE10. On PE10 learning of M3 will be against MH virtual port (MHID3). PE10 sends packet to M5 over AC5. B3 MHID 3 Site3 AC300 [S: M3, D: M1] AC3 AC30 PE3 PE30 Site2 AC2 PE2 M2 30 - [S: M3, D: M1] PE1 PE10 AC5 [S: M3, D: M1] AC4 AC1 AC10 VFI table of PE3: Site4 Site5 M1 M5 MHID1: {PE1, PE10} M1’ MHID 1 B1 Site1 M1 M1’ M1’’ M1’’ PE10 PE1

  5. Properties • Per-flow load-balancing among multiple active attachment circuits connected to the same multi-homed site • Fast Convergence upon redundant link or node failure • Flexible PE location • Shortest-path routing • P2M Multicast optimization • MAC Flush reduction • Policy support (E-TREE and more) • No requirement for control-word presence

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