Live Wired Installation

9 January 1996

The internet live video and audio broadcast during the actual show will be sent out via two high speed ISDN lines so viewers will be able receive video and audio at up to ISDN speeds.

There will be several short notice CU-SeeMe broadcasts from SRL on Jathe 9thk. These will take place before the show and are intended to test various pieces of equipment. Viewers will be able to watch some of the machines being setup and tested. Check here for reflector site info, date, and time.

Wired Installation Live Feed
CU-SeeMe: 128.32.36.85
Date: 9 January 1996
Time: 7:00 PM - 2:00 AM
Big Bang at Midnight PST (08:00 GMT)

Note: If you view the show remotely, we'd like to hear back from you. Send mail during and/or after the show to Eric Paulos (paulos@cs.berkeley.edu). Below is a discussion of how you can receive the broadcast depending upon your setup.

CU-SeeMe

CU-SeeMe is desktop videoconferencing software for Macintosh and Windows computers. Developed at Cornell University, and pronounced "see you, see me," CU-SeeMe provides an ability to communicate via moving pictures (video), sound, and text. Each CU-SeeMe user can decide to be a sender, a receiver, or both. It displays 4-bit grayscale windows at either 320x240 or half that diameter, 160x120. CU-SeeMe provides a one-one connection or, by use of a "reflector," a one-many, several-to-several, or several-to-many conferencing scheme.

For the SRL show we have configured a reflectors to transmitter the video signal from the show. We will be sending the signal into this reflector which which remote viewers can connect to with CU-SeeMe and receive the show video and audio signal.

Before the show make sure that you check to make sure that you have the latest version of CU-SeeMe and that your internet connection is configured properly. Relevant information on these issues is located here.

Mac users may need MacBinaryII+ after downloading CU-SeeMe.

Connect to the following IP address (on channel 0) where a reflector is located to begin receiving the video and audio of the show. There is also a listing in the CU-SeeMe Event Guide.

If you are interested in configuring your reflector to mirror the SRL signal, configure the OBTAIN-GENERAL-BCC field to be the IP address listed below. Also, please let me know so that I can add it to the list below.

128.32.36.85

MBONE

MBONE stands for the Multicast Backbone on the Internet and was developed primarily by Steve Deering at Xerox PARC. Essentially the MBONE allows for broadcasting to multiple sites on the Internet providing a mechanism for real-time communications over wide areas, such as the world. This is possible because of the use of IP networks implementing a lightweight, highly threaded model of communication. The MBONE topology of routers is designed in such a manner that it facilitates "efficient" distribution of packets without congesting any node inappropriately. In essence it allows for intelligently routed broadcasting of real-time communications data.

Before your can received a multicast signal you must:

(1) be on a machine who's architecture supports multicasting (check here) and have that kernel patch installed. Multicasting is not implemented on all machine architectures yet.

(2) be connected to a portion of the internet that is capable to sending and receiving multicast packets (partial list here). Several internet service providers now support multicast routing but most do not yet. Ask your ISP if you are unsure.

(3) download the necessary software to receive the video and audio signals. (check here).

The video steam will be in CU-SeeMe format. Since only nv allows for decoding of a CU-SeeMe video steam, you must use nv (not vic). The audio steam will be receivable from vat. Therefore you must have nv for the video signal and vat for the audio signal. To receive the signal use the following commands:

% nv 224.2.140.1 6001
% vat 224.2.140.2/6002

Video: 224.2.140.1 Port: 6001
Audio: 224.2.140.2 Port: 6002 ID: 0

You can also check the session director (sd) for directly launching these applications.

Information is also listed on the MBONE Broadcast Schedule

This page by Eric Paulos.


SRL