Инструкции По Установке для 3com S7906E

1-8

Configure the sub-VLAN-based multicast VLAN feature so that Router A just sends multicast data

to Switch A through the multicast VLAN and Switch A forwards the traffic to the receivers that

belong to different user VLANs.

Network diagram

Figure 1-4 Network diagram for sub-VLAN-based multicast VLAN configuration

Source

Receiver

Host A

VLAN 2

GE2/0/2

GE2/0/3

GE2/0/4

Switch A

IGMP querier

Router A

GE2/0/1

1.1.1.2/24

GE2/0/2
10.110.1.1/24

1.1.1.1/24

Receiver

Host B

VLAN 3

Receiver

Host C

VLAN 4

GE2/0/1

Configuration procedure

1) Configure

addresses

Configure an IP address and subnet mask for each interface as per

Figure 1-4

. The detailed

configuration steps are omitted here.

2) Configure Router A

# Enable IP multicast routing, enable PIM-DM on each interface and enable IGMP on the host-side

interface GigabitEthernet 2/0/2.

<RouterA> system-view

[RouterA] multicast routing-enable

[RouterA] interface gigabitethernet 2/0/1

[RouterA-GigabitEthernet2/0/1] pim dm

[RouterA-GigabitEthernet2/0/1] quit

[RouterA] interface gigabitethernet 2/0/2

[RouterA-GigabitEthernet2/0/2] pim dm

[RouterA-GigabitEthernet2/0/2] igmp enable

3) Configure Switch A

# Enable IGMP Snooping globally.

<SwitchA> system-view

[SwitchA] igmp-snooping

[SwitchA-igmp-snooping] quit

# Create VLAN 2 and assign GigabitEthernet 2/0/2 to this VLAN.