Multicast
From Acorn
A new subnet has been created for H.323 videoconferencing and I2 Multicast. IP assignments are:
- Polycom in Dilley Room: 136.244.96.100
- Polycom in DCC: 136.244.96.101
- PC in DCC, keel9: 136.244.96.106. Video Card NVidia Quadro 1000, Service Tag 3NKQG41 (only when on I2, not when on Academic network, its DHCP usual configuration)
- Mac Mini in Internet2 Cart in DCC. IP 136.244.96.104, multicast on IP 233.88.214.139.
- XServe, (larch)in Bill Hall, IP 136.244.96.107, multicast on IP 233.88.214.140, -.141, -.146. Ports 9000 and up. This computer is also testing EasySAPAnnouncer. SAPs on 224.2.127.254, port 9875.
- Frank's MacBook Pro, or DCC Mac Book (but not simultaneously) when connected to I2 subnet for testing, are configured to 136.244.96.105
- Visionary Solutions encoders in DCC.
- Connecticut College h.264 - Upper Blade (AVN420 Ser #267), 136.244.96.102, multicast IP 233.88.214.137, port 1234
- Connecticut College Ch2 - Lower Blade (AVN420 Ser #282), 136.244.96.103, multicast IP 233.88.214.138, port 1234
- Connecticut College AVN200 - Box (Ser #02826)Firmware 2.04, 136.244.96.108, multicast IP 233.88.214.145:1234
- MacPro, ilex.conncoll.edu, when on Academic Network 136.244.12.5, when on I2 136.244.96.109, multicast IP 233.88.214.143
- Common Network Statistics
- Gateway: 136.244.96.2
- Subnet: 255.255.255.0
- DNS servers: 136.244.1.1, 136.244.1.2
- GLOPs allocated to Connecticut College from CEN: 233.88.214.137 to 214.146 (email from Bob Vietzke to wcon on 4 Apr. 2006)
Creating a simple QuickTime Broadcaster Multicast Relay
To test whether UNINETT in Norway can receive it, go to http://testnett.uninett.no/ssmping/
References
Gustavus Adolphus College iPTV
Multicast Status of the Internet
Internet2 Multicast Working Group
Abilene Multicast References, Abilene is I2's multicast backbone
VBrick and I2 along with Tips and Techniques
Multicast Events Announcements
VBrick tips for I2, GLOP calculator
SAP info SAPs must be sent on 224.2.127.254 on port 9875 and SHOULD be sent with an IP time-to-live of 255. Pay attention to the TTL, using a TTL of less than 32 is silly IMHO. Using a TTL of 1 restricts the traffic to the local LAN.
SDP, Session Description Protocol
Multicast Streams
Internet2 DV guide has some multicast programming
Research Channel-Digital Well Multicast Stream
VBrick Support (VBrick is no longer here, info for historic purposes)
VBStar 9130-4300-1002 MPEG2/MPEG4 encoder, HD recorder and pump, VBXCast MPEG4 streamer
Software version 3.0.7
IP 136.244.96.102, multicast IP is 233.88.214.137 for slot encoder 1 (MEPG4), and 233.88.214.138 for slot encoder 2 (MPEG2)
MPEG2 streams on port 1234, MPEG4 on port 4444 (video) port 4644 (audio)
Up to 200 RTSP MPEG4 streams, default is rtsp://136.244.96.102/vbrickvideo1
Unit can multicast MPEG4 on destination 1, and also enable RSTP server
Can test DCC clients for unicast: PC keel3 DHCP IP 136.244.14.21, Mac keel2 DHCP IP 136.244.13.123, Mac keel4 with VLC DHCP IP 136.244.14.152, PC keel9 dedicated IP 136.244.96.103 on I2 subnet
Latest VBRick StreamPlayer Plus, v 4.3.0.7, 3 licenses: keep3, keel9, extra. Defaults OK for multicast SAP, IP 224.2.127.254, port 9875
To receive MPEG2 multicast streams
On PC, use StreamPlayer, click on SAP, or select IP 233.88.214.138, Port 1234.
On PC or Mac, use VLC, Open Playlist, Go to Manage>Services Discovery, enable SAP announcements. Select correct SAP. On a PC, the SAPs take a while to display. Or, go to File>Open Network stream. Select UDP/RTP Multicast, and enter the above parameters.
To receive MPEG4 multicast streams
On PC, use StreamPlayer, click on SAP, or select IP "233.88.214.137 va", Port 4444
On PC or Mac, use VLC, Open Playlist, Go to Manage>Services Discovery, enable SAP announcements. Select correct SAP. On a PC, the SAPs take a while to display. If you go to File>Open Network stream, select UDP/RTP Multicast, and enter the above parameters, it does not seem to work. Maybe the wrong syntax, need to use "va"?
QuickTime on PC and Mac. In the admin web interface of the VBrick go to Configuration>Encoder>Destination1, and export the SDP file, this can be distributed, or put on a web page. When opened with QT Player, the stream will play. A reference movie can be created from the .sdp file, and hosted on a web server.
There may be a way to enter the multicast URL directly in VLC or QT Player, but we have not succeeded in this yet.
To receive MPEG4 RTSP streams
In QuickTime Player, go to File>Open URL, enter rtsp://136.244.96.102/conncoll1
The name is established in Configuration>Encoder>RTSP server, in Program Name
To receive unicast MPEG2 streams- Note, we are not unicasting at this time.
On PC, use StreamPlayer, enter IP 136.244.96.102 and port 1234.
On Mac and PC, use VLC, go to File>Open Network stream. Select UDP/RTP, enter IP 136.244.96.102, Port 1234. The display should show udp://@1234
