Dell PowerConnect 7048P Manual page 756

console(config-if)#switchport access vlan 100
console(config-if)#exit
10 Configure port 24 as a trunk port that connects to the data center switch.
console(config)#interface gigabitethernet 1/0/24
console(config-if-Gi1/0/24)#ip igmp snooping
console(config-if-Gi1/0/24)#switchport mode trunk
console(config-if-Gi1/0/24)#exit
console(config)#exit
11 Verify the IGMP snooping configuration.
console#show ip igmp snooping
Admin Mode.............................Enable
IGMP Router-Alert check................Disabled
Multicast Control Frame Count..........0
Interfaces Enabled for IGMP Snooping...Gi1/0/1
Vlans enabled for IGMP snooping........100
console#show ip igmp snooping querier vlan 100
Vlan 100 :
----------------------------------------------
IGMP Snooping Querier Vlan Mode..... Enable
Querier Election Participate Mode... Enable
Querier Vlan Address................ 0.0.0.0
Operational State................... Querier
Operational version................. 2
Operational Max Resp Time........... 1
After performing the configuration in this example, Host A sends a join
message for multicast group 225.1.1.1. Host B sends a join message for group
225.1.1.2. Because IGMP snooping is enabled on the switch and on VLAN
100, the switch listens to the messages and dynamically adds Ports 1 and 2 to
the multicast address table. Port 3 did not send a join message, so it does not
appear in the table, as the following show command indicates.
756
Configuring L2 Multicast Features
IGMP Snooping querier status
Gi1/0/2
Gi1/0/3
Gi1/0/24