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Mtrace Version 2: Traceroute Facility for IP Multicast

78 th IETF , July 2010, Maastricht. Mtrace Version 2: Traceroute Facility for IP Multicast. draft-ietf-mboned-mtrace-v2-07 Hitoshi Asaeda Tatsuya Jinmei Bill Fenner Steve Casner. Changes. Editorial changes

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Mtrace Version 2: Traceroute Facility for IP Multicast

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  1. 78thIETF, July 2010, Maastricht Mtrace Version 2:Traceroute Facility for IP Multicast draft-ietf-mboned-mtrace-v2-07 Hitoshi Asaeda Tatsuya Jinmei Bill Fenner Steve Casner

  2. Changes • Editorial changes • After the AD evaluation, some texts are added or modified based on Ron’s comments • Technical changes • Assign different type numbers for “Mtrace2 Request” and “Mtrace2 Response” • Fix 32 bit alignment problem

  3. Editorial Modification in Introduction • Summary text is included in Introduction section, such as; • Trace for (*,G) state (i.e. no S address specified or for RPT) • In case that intermediate router does not support mtrace2 or is broken • In case that control plane and forwarding plane are not synchronized

  4. Old Type Value Code Type ====== =========================== 1 Mtrace2 Query/Request 2 Mtrace2 Response 3 Mtrace2 Standard Response Block 4 Mtrace2 Augmented Response Block

  5. New Type Value Code Type ====== =========================== 1 Mtrace2 Query 2 Mtrace2 Request 3 Mtrace2 Response 4 Mtrace2 Standard Response Block 5 Mtrace2 Augmented Response Block

  6. TLV Header and Query Header • TLV header • Mtrace2 Query Header # hops Type Value … Length Multicast Address Source Address Destination Address Client Port # Query ID

  7. 32 bit Alignment • IPv4 Mtrace2 Standard Response Block and IPv6 Mtrace2 Standard Response Block have now 8 bit “MBZ” field MBZ Query Arrival Time Incoming IF Addr. Outgoing IF Addr. …

  8. Next Step • Restart AD evaluation?

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