I have a doubt about the igmp snoop time.
I'm using the extreme X350 with a IP QAM Harmonic who doesn't send the igmp query frequently causing the IGMP group to drop.
There's why I incresead the time of igmp, using configure igmp snooping timer 604800 604800 vlan Multicast-IPTV but, of course, the igmp group drop after that period.
Is there something else to do ? Any advices?