1 / 10

CLUE DATA CHANNEL

CLUE DATA CHANNEL. CHRISTER HOLMBERG IETF#89 London, U.K. ( 2 ) REFERENCES. SCTP RFC 4960 DTLS (v.1.2) RFC 6347 SCTP Stream Reconfiguration RFC 6525 DTLS Encapsulation of SCTP Packets draft- ietf - tsvwg-sctp-dtls-encaps WebRTC DATA CHANNEL draft- ietf - rtcweb -data-channel

umed
Download Presentation

CLUE DATA CHANNEL

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. CLUE DATA CHANNEL CHRISTER HOLMBERG IETF#89 London, U.K.

  2. (2) REFERENCES • SCTP • RFC 4960 • DTLS (v.1.2) • RFC 6347 • SCTP Stream Reconfiguration • RFC 6525 • DTLS Encapsulation of SCTP Packets • draft-ietf-tsvwg-sctp-dtls-encaps • WebRTC DATA CHANNEL • draft-ietf-rtcweb-data-channel • WebRTC Data Channel Establishment Protocol • draft-ietf-rtcweb-data-protocol • SCTP-Based Media Transport in SDP • draft-ietf-mmusic-sctp-sdp • SDP-based "SCTP over DTLS" data channel negotiation • draft-ejzak-mmusic-data-channel-sdpneg

  3. (3) WebRTC DATA CHANNEL OVERVIEW BIDIRECTIONAL DATA CHANNEL UNIDIRECTIONAL SCTP STREAM UNIDIRECTIONAL SCTP STREAM SCTP STREAM #n

  4. (4) PROTOCOL STACK DCEP SUB-PROTOCOL (e.g. CLUE) WebRTC DATA CHANNEL SCTP/DTLS/UDP(ICE)

  5. (5) DATA CHANNEL ESTABLISHMENT PROTOCOL (DCEP) • Used to open a data channel on the SCTP association • SCTP stream selection • Sub-protocol • Additional parameters • Uses the data channel (SCTP stream) that it controls

  6. (6) SDP O/A EXAMPLE(SCTP Association) SDP OFFER: m=application 54111 DTLS/SCTP 1000 c=IN IP4 192.0.2.2 a=sctpmap:1000 webrtc-datachannel streams=64000 a=setup:actpass a=connection:new SDP ANSWER: m=application 64222 DTLS/SCTP 1000 c=IN IP4 192.0.8.8 a=sctpmap:1000 webrtc-datachannel streams=64000 a=setup:passive a=connection:new

  7. (7) SDP O/A EXAMPLE(SCTP Association + Data Channel) SDP OFFER: m=application 54111 DTLS/SCTP 1000 c=IN IP4 192.0.2.2 a=sctpmap:1000 webrtc-datachannel streams=64000 a=dcmap:1000 stream=1; subprotocol=“CLUE" a=setup:actpass a=connection:new SDP ANSWER: m=application 64222 DTLS/SCTP 1000 c=IN IP4 192.0.8.8 a=sctpmap:1000 webrtc-datachannel streams=64000 a=dcmap:1000 stream=1; subprotocol=“CLUE" a=setup:passive a=connection:new

  8. PROPOSAL • Adopt DCEP for CLUE as a way to create the CLUE data channel • draft-ejsak may be adopted later, if the draft progresses in MMUSIC • Backward compatible: fallback to DCEP always possible • Define generic CLUE identifier(e.g. media feature tag), used in initial INVITE to indicate that the caller supports CLUE • CLUE identifier definition specifies that entity must support using a data channel for CLUE

  9. (10) RELATED WORK • CLUE Data Channel impact on CLUE session • How does a loss of the CLUE data channel, or the SCTP association, affect the CLUE session? • If DCEP is used, who is responsible for opening the channel? • To avoid two CLUE data channels from being established

  10. THE END THANK YOU FOR LISTENING!

More Related