We have a SFE2000 switch and we're having trouble configuring IGMP snooping.  It is enabled but we are still seeing multicast traffic on ports which have definitely not done an IGMP join - indicating something is not right.  The literature on the switch says it supports IGMP snooping.  Can anyone advise or point me to a technical resource?  This switch is part of a standard package and we are looking at alternative suppliers since this switch is not doing what we need.  I'd like to confirm this switch can't do what we need or understand how to properly configure it before going elsewhere.  I have reviewed the manuals. I suspect the issue relates to configuring a multicast querier.  I don't see a way to do this on the SFE2000.  Our system is isolated so the SFE2000 is not connecting to a higher level switch.  The SFE2000 needs to act as the querier. Thanks in advance for any help/direction.  - Jim