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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

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

changes
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
editorial modification in introduction
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
old type value
Old Type Value

Code Type

====== ===========================

1 Mtrace2 Query/Request

2 Mtrace2 Response

3 Mtrace2 Standard Response Block

4 Mtrace2 Augmented Response Block

new type value
New Type Value

Code Type

====== ===========================

1 Mtrace2 Query

2 Mtrace2 Request

3 Mtrace2 Response

4 Mtrace2 Standard Response Block

5 Mtrace2 Augmented Response Block

tlv header and query header
TLV Header and Query Header
  • TLV header
  • Mtrace2 Query Header

# hops

Type

Value …

Length

Multicast Address

Source Address

Destination Address

Client Port #

Query ID

32 bit alignment
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.

next step
Next Step
  • Restart AD evaluation?
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