IGMP Snooping Groups

Apr 2024

When using IGMP snooping, it can be very useful to see what is happening on the switch. In this example, we can look at a Cisco switch being used in an nCompass Controlled Aquila Live system. It does not matter that we are using nCC, this will look the same on just a Controller based solution also.
Please bear in mind that this system is 1+1 Encoding Live and 1+1 Multiplexers that are using:
1. Statistical Multiplexing
2. Services Synchronisation
3. Dual Output Prevention
This is important to know because we can see the multcasts for each of these processes.

IGMP Snooping Groups

Once you have logged in to your switch (in this example I am using a Cisco switch) you can issue this command from the top level (no need to go in to the configuration mode).
ip igmp snooping groups