Multicast stream monitoring tools

[Murat Kaipov <mkaipov () outlook com>]

Hello folks!We have an issue with some multicast streams. For some reason picture is very unstable in evening, during 
internet usage peak times. We have had monitor our links and uplinks and there wasn't any oversubscribtion. I looking 
for usefull multicast stream monitoring tool now. Any suggestion?Thank you!