3Com Switch 7750 Configuration Guide Guide

396 CHAPTER 40: IGMP SNOOPING CONFIGURATION
Configure VLAN 1024 as a multicast VLAN and configure VLAN 2 to VLAN 7 as
multicast sub-VLANs.
Network diagram
Figure 94 Network diagram for multicast VLAN configuration
Tabl e 317 List of network device configurations
Device ID Device type Port
Device
connected
to the port
Description
Router A Router GigabitEthernet0/0/0 Switch B
GigabitEthernet0/0/0
belongs to VLAN1024,
where the PIM-SM and
IGMP protocols are
enabled.
Switch B
Layer 3
switch
GigabitEthernet1/0/1
GigabitEthernet1/0/2
GigabitEthernet1/0/3
Router A
Switch C
Switch D
GigabitEthernet1/0/1
belongs to VLAN1024.
GigabitEthernet1/0/2 is a
trunk port belonging to
VLAN 2 to VLAN 4.
GigabitEthernet1/0/3 is a
trunk port belonging to
VLAN 5 to VLAN 7.
Switch C
Layer 2
switch
The port connecting
the upper-layer
switch is configured
as a trunk port.
-
Switch C is connected to
users belonging to VLAN 2
to VLAN 4 where the IGMP
snooping function is
enabled.
Switch D
Layer 2
switch
The port connecting
the upper-layer
switch is configured
as a trunk port.
-
Switch C is connected to
users belonging to VLAN 5
to VLAN 7 where the IGMP
snooping function is
enabled.
Layer 3 Switch
Switch B
Layer 2 Switch
Switch C
Host A
(VLAN 2)
Host B
(VLAN 3)
GigabitEthernet 0/0/0
GigabitEthernet 1/0/1
VLAN 1024
Layer 2 Switch
Switch D
Host C
(VLAN 4)
Host C
(VLAN 5)
Host C
(VLAN 6)
Host C
(VLAN 7)
GigabitEthernet 1/0/2
VLAN 2~VLAN 4
GigabitEthernet 1/0/3
VLAN 5~VLAN 7
Router A
Layer 3 Switch
Switch B
Layer 2 Switch
Switch C
Host A
(VLAN 2)
Host B
(VLAN 3)
GigabitEthernet 0/0/0
GigabitEthernet 1/0/1
VLAN 1024
Layer 2 Switch
Switch D
Host C
(VLAN 4)
Host C
(VLAN 5)
Host C
(VLAN 6)
Host C
(VLAN 7)
GigabitEthernet 1/0/2
VLAN 2~VLAN 4
GigabitEthernet 1/0/3
VLAN 5~VLAN 7
Router A