On 11/30/2014 12:22 AM, Victor Sudakov wrote: > Daniel Roesen wrote: >> Check for enabled IGMP snooping on this switch. Try disabling snooping. > We have already tried that, with no effect. Besides, IGMP snooping > should not affect packets with only one unicast source address on only > one switch. "Should not" and "does not" are two different things. pt