In the below message , u had mentioned the switch will send a message if any-one else is still interested? where is this message seen?
SW1# IGMPSN: group: Group exist - Leave for group 184.108.40.206 received on Vlan 1, port Gi0/3, group state (1) IGMPSN: group: Created v2 leave port on port Gi0/3, for group 220.127.116.11 on Vlan 1 IGMPSN: group: Deleting leave port on port Gi0/3, for 18.104.22.168 on Vlan 1 L2MM: Add member: gda:0100.5e01.0101, removing Gi0/3 IGMPSN: mgt: deleted port Gi0/3 on gce 0100.5e01.0101, on Vlan 1 IGMPSN: group: Deleting port Gi0/3 from group 22.214.171.124 on Vlan 1
As you can see the switch receives the leave group message from H2. It sends a message on interface Gigabit0/3 to figure out if anyone is still interested but doesn’t get a reply. The interface will then be removed.