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- Subject: n-1-4-fill3
-
- The First Internet TV Guide
-
- Prior to the multicast of the IETF standards meeting in
- November at Washington DC, the Steves - Casner and Deering -
- and the "MBONE/IETF-TV crew" distributed on the network the
- first Internet TV Guide.
-
- The Guide announced the 'cast of two sessions in parallel, on "IETF
- Channel 1" and "IETF Channel 2". On both channels there could
- be three concurrent multicast streams:
-
- - low-rate audio (GSM encoding; approx 16 kbps)
- - "normal"-rate audio (PCM encoding; approx. 70 kbps)
- - video (one of two encodings; approx. 25 to 128 kbps)
-
- The audio is originated by the vat program. Listners can use vat or
- any other vat-compatible application to listen in and talk back. Information
- on doing this is available as mbone/faq.txt from <venera.isi.edu>.
-
- The Guide contained the multicast addresses, ports, and TTLS used
- with those programs, for each type of multicast stream. (These are
- the Internet equivalent of radio frequencies.) A partial listing of
- this first Guide is shown below.
-
- --------------------------------------------------------------------
- IETF TV Guide
- (Times are Eastern Standard Time, GMT - 0500)
-
-
- MONDAY 0900-0930 0930-1200 1330-1530 1600-1800
- - --------+-------------+-------------+-------------+-------------+
- CHAN 1 |intro plenary|tech. plenary| remconf | pip |
- - --------+-------------+-------------+-------------+-------------+
- CHAN 2 | " | " | osids | osids |
- - --------+-------------+-------------+-------------+-------------+
-
- ---------------------------------------------------------------------
-
- Some of the channel 1 programming was also scheduled to be replayed by
- tape delay from 2300 to 0800.
-
- The criteria used to select the sessions to be transmitted were
- - all plenary sessions
- - sessions related to A/V teleconferencing or multicast
- (avt, rem-conf, mospf, idmr)
- - sessions related to IPv7 (select, pip, tuba, ipae, sip)
- - miscellaneous sessions, by request
-
-
- Participants were advised to keep microphones muted and video transmissions
- disabled during the plenaries and working group sessions, unless or until
- invited to respond by the chair of the session.
-
- During plenary sessions, when there is only one audio stream,
- two video streams wre used on the same video multicast channel, one with
- a higher than normal TTL, to allow people who would normally receive only
- two audio streams to receive one audio plus one video instead.
-
-