SSM
Source Specific Multicast

In normal IP multicast operation, numerous entities are permitted to be the source of a multicast traffic stream. SSM describes the notion of one source of traffic associated with the multicast group, as opposed to numerous. This is particularly relevant for IPTV services, where the source for the multicast group would be an individual media server. As such, when subscribers choose a particular channel, they will join the multicast group for that channel but also specify the source IP address of the appropriate media server.

If you enjoy using our glossary, here are some other useful resources you might like...

Get your weekly dose of telecoms terminology delivered straight to your inbox!

We promise, no spam - just clear-cut telecoms terms to keep you on top of your game.

Subscribe

Our YouTube channel offers over a hundred free videos (and counting!) covering a range of technology topics.

Subscribe to our channel to be the first to know when we release new videos:

FREE Intro to 5G Sample Course

Use this no-obligation free trial to get a taste of what it's like to be an Mpirical student.

Included with the trial is an all-access pass to the LearningZone, which contains learning tools and other useful resources to help you make the most of your training.

Start My Free Trial