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Mbus Update. draft-ietf-mmusic-mbus-transport-03.txt. Jörg Ott [email protected] Colin Perkins [email protected] Dirk Kutscher [email protected] Quick Reminder. Local coordination mechanism Specification split into three pieces Requirements overview

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Mbus update

Mbus Update

draft-ietf-mmusic-mbus-transport-03.txt

Jörg Ott [email protected]

Colin Perkins [email protected]

Dirk Kutscher [email protected]

49. IETF, San Diego

Ott/Perkins/Kutscher


Quick reminder
Quick Reminder

  • Local coordination mechanism

  • Specification split into three pieces

    • Requirements overview

    • Definition of the “transport protocol”

      • Message syntax, addressing, local multicast, reliability, authentication, ...

    • Definition of the message semantics

      • Call-control, media tools related commands

49. IETF, San Diego

Ott/Perkins/Kutscher


Overview of changes in draft ietf mmusic mbus transport 03
Overview of Changes indraft-ietf-mmusic-mbus-transport-03

  • Allow for use of broadcast

    • Only when multicast is not available

  • Scope-relative multicast address

    • Yet to be assigned

    • MUST NOT use scopes larger than link-local

  • Resolution of timestamps now milliseconds

  • Bug-fixes

    • Message syntax ABNF, use CRLF throughout

49. IETF, San Diego

Ott/Perkins/Kutscher


Remaining issues
Remaining Issues

  • Security

    • Currently advocating DES

    • Adopt AES, padding is already considered

  • IPv6

    • Should already be considered, need to check once more

  • References in draft

    • Check normative references etc.

  • Congestion Control required?

    • Remember: link-local scope

    • Cannot determine link bandwidth reliably

      • There may not be receivers behind every bridge…

  • IANA

    • Scope-relative address and port number

    • Registration has been requested…

49. IETF, San Diego

Ott/Perkins/Kutscher


Next steps
Next steps

  • Mbus-transport essentially stable

    • Pending small changes...

    • No further features/changes planned

  • One more draft submission before WG-last-call?

    • Standards Track or Informational?

49. IETF, San Diego

Ott/Perkins/Kutscher


Http www dmn tzi org ietf mmusic mbus
http://www.dmn.tzi.org/ietf/mmusic/mbus/

49. IETF, San Diego

Ott/Perkins/Kutscher


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