http://www.multicast.org.uk The latest information about Multicast in the UK. Thu, 08 May 2008 13:58:49 +0000 http://backend.userland.com/rss092 en Well Apple latest operating system, Mac OS 10.5 (codename Leopard), is finally here but unlike Windows Vista, there does seemed to be any Source Specific Multicast support added. There is no sign of the Multicast Source Filter API (RFC3678) in the /usr/includes directory. Search for MCAST_JOIN_GROUP or MCAST_JOIN_SOURCE_GROUP on Build version ... http://www.multicast.org.uk/2007/10/28/multicast-leopard/ I have just completed a new version of the ssmping looking glass - version 0.3. The main feature in this new version is added support for mcfirst - Stig's tool for displaying packets received on a chosen multicast group and port. I have also added a 'Raw Output' mode that returns the raw ... http://www.multicast.org.uk/2007/08/24/ssmping-lg-02/ The first public release of MAST was released today. MAST is a set of audio streaming tools using RTP over IPv4 and IPv6 multicast/unicast. Unlike VAT and RAT, which are designed primarily for audio conferencing, MAST is designed to be used for audio distribution and broadcasting. It is currently limited ... http://www.multicast.org.uk/2007/07/11/mast-released/ I have just added a IPv6 Multicast Address Calculator to the musticast address tools section of this site.It prompts you for a multicast address type (transient, embedded RP, SSM), Scope and Group ID and it then calculates the full IPv6 multicast address for you.The tool is available here: http://www.multicast.org.uk/address-tools/ http://www.multicast.org.uk/2007/06/30/ipv6-multicast-address-calculator/ The BBC Multicast trial website has now split up TV and Radio into two separate sections and is offering links to a number of commercial radio stations, as well as BBC National and World Service streams. Multicast streams from the following providers are now available: BBC National Stations BBC World Service Virgin Radio EMAP GCap A total ... http://www.multicast.org.uk/2007/05/30/bbc-multicast-radio/ There have been a number of multicast beacons developed over the years; dbeacon is the latest offering. dbeacon is a Multicast Beacon written in C++. The main purpose of a beacon is to monitor other beacon's reachability and collect statistics such as loss, delay and jitter between beacons. dbeacon support both ... http://www.multicast.org.uk/2007/05/23/dbeacon/ SSMping is an excellent tool for checking multicast connectivity. Pings are sent back from the server using both unicast and multicast, so also confirms that the remote host is alive. ssmping is a tool for checking whether one can receive Source Specific Multicast from a given host. If a host runs ... http://www.multicast.org.uk/2007/05/23/ssmping/ Time: Wednesday 14th March 2007 @ 17:00 GMT ECS-TV is proud to be the official provider of the much awaited inaugural lecture of Professor Sir Tim Berners-Lee at the University of Southampton. The Lecture entitled "The World Wide Web: looking back, looking forward" provides a rare opportunity to see the inventor of ... http://www.multicast.org.uk/2007/03/14/sir-tim-berners-lee/ The Net::RTP perl module comes with a number of tools to test RTP multicast streams: rtpdump.pl - Parse and display incoming RTP packet headers rtplosslog.pl - Log packet loss for a RTP session every minute rtpsend-pcmu.pl - Send an audio file an RTP session as u-law rtpstats.pl - Displays ... http://www.multicast.org.uk/2007/02/12/netrtp-perl-module/