TRAM - TURN Revised and Modernized

IETF 92, Dallas
Thursday, March 26, 2015


Administrativia
===============

15:20 - Chairs' update
        Duration: 10 min


Working-group drafts
====================

15:30 - TURN server discovery
        draft-ietf-tram-turn-server-discovery-01
        Presenter: Dan or Adam (?)
        Duration: 10 minutes

• No objection to removing the "reverse lookup your IP address" discovery method.
• No objection to adding mDNS support. Strong support from Adam Roach.

15:40 - STUN bis
        draft-ietf-tram-stunbis-02
        Presenter: Marc Petit-Huguenin
        Duration: 40 minutes

• ALTERNATE-DOMAIN|SERVER: Server sends both. Client uses IP address but also resolves and checks the domain.
• Dan Wing wants to remove support for DANE to keep things simple.
• No objection to the proposal for preventing nonce reuse.
• Whether MI and/or MI2 are included is going to be usage-dependent. For ICE it can be signalled.
• No objection to the proposal about key derivation function. Strong support to align with HTTP auth.
• Consensus that message fragmentation is to be avoided when possible but is not completely avoidable. No need to 100% solve the problem with SCTP.
• Consensus to remove SCTP support.
• Test vectors: reference RFC 5769, and add new vectors for MI2 and password hashing algorithms.

16:20 - TURN bis
        draft-ietf-tram-turnbis-02
        Presenter: Alan Johnston
        Duration: 15 minutes

• Next step: new revision.

Drafts with clear corresponding milestones
==========================================


Extracurricular work
====================

16:35 - Discovery of path characteristics using STUN
        draft-reddy-tram-stun-path-data-01
        Presenter: Varun Singh
        Duration: 10 minutes

• Some concern about the fact that the server needs to keep state in order to handle this new attribute.
• People who read the draft: ~8
• People who think this is a real problem: ~6
• People who think we should not do this: 0

16:45 - TURN by name
        draft-schwartz-tram-turnbyname-00
        Presenter: Benjamin Schwartz
        Duration: 10 minutes

• Adam Roach asked whether the cache is global is per-session. It is per-session, which is what Adam wanted.
• Alan Johnston: Need to understand the use case and why DNS is being blocked meaning that this is required.
• Justin Uberti: This is nothing new, HTTP proxies do this all the time.
• People who read the draft: ~10
• People who think this is a real problem: ~6
• People who think this is a bad idea: ~3
• Dan Wing is concerned that this will be abused to circumvent enterprise policy.

16:55 - STUNtrace
        draft-martinsen-tram-stuntrace-00
        Presenter: Pål-Erik Martinsen
        Duration: 10 minutes

• Authors to discuss overlap between STUNtrace and PMTUD and propose a way forward.

=== End of allocated time slot. Drafts below could not be discussed. ===

17:05 - TURN Peer Redirect
        draft-williams-peer-redirect-03
        Presenter: Brandon Williams
        Duration: 10 minutes

17:15 - TURN-Lite
        draft-wang-tram-turnlite-02
        Presenter: Bing Liu
        Duration: 10 minutes

17:25 - DISCUSS status update and implementation report
        draft-martinsen-tram-discuss-02
        Presenter: Herb Wildfeuer
        Duration: 10 minutes


17:20 - EOF