257
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
Switch(Config)#ip igmp snooping
Switch(Config)#ip igmp snooping vlan 100
Switch(Config)#ip igmp snooping vlan 100 mrouter interface ethernet 1/1
Multicast Configuration
Suppose two programs are provided in the Multicast Server using multicast address Group1 and
Group2, three of four hosts running multicast applications are connected to port 2, 6, 10 plays
program1, while the host is connected to port 12 plays program 2.
IGMP Snooping listening result:
The multicast table built by IGMP Snooping in VLAN 100 indicates ports 1, 2, 6, 10 in Group1 and
ports 1, 12 in Group2.
All the four hosts can receive the program of their choice: ports 2, 6, 10 will not receive the traffic
of program 2 and port 12 will not receive the traffic of program 1.
Scenario 2. IGMP Query
Mult icast Router
Mrout er Por t
IGMP Snoop in g
Group 1 Group 1 Group 1 Group 2
Swi t ch 2
Group 1 Group 2
IGMP Snoopi ng
Quer y
Switch1
Fig 11-2 The switches as IGMP Queriers