Инструкции По Установке для 3com S7906E

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IGMP Snooping Configuration Examples

Group Policy and Simulated Joining Configuration Example

Network requirements

As shown in

Figure 1-4

, Router A connects to the multicast source through GigabitEthernet 2/0/2

and to Switch A through GigabitEthernet 2/0/1.

IGMPv2 is required on Router A, IGMP snooping version 2 is required on Switch A, and Router A

will act as the IGMP querier on the subnet.

It is required that the receivers, Host A and Host B, attached to Switch A can receive multicast

traffic addressed to multicast group 224.1.1.1 only.

It is required that multicast data for group 224.1.1.1 can be forwarded through GigabitEthernet

2/0/3 and GigabitEthernet 2/0/4 of Switch A even if Host A and Host B accidentally, temporarily

stop receiving multicast data.

Figure 1-4 Network diagram for group policy simulated joining configuration

Source

Router A

Switch A

Receiver

Host B

Host A

Host C

1.1.1.1/24

GE2/0/4

GE2/0/2

GE2/0/3

IGMP querier

GE2/0/1

GE2/0/1
10.1.1.1/24

GE2/0/2

1.1.1.2/24

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.

2) Configure Router A

# Enable IP multicast routing, enable PIM-DM on each interface, and enable IGMP on GigabitEthernet

2/0/1.

<RouterA> system-view

[RouterA] multicast routing-enable

[RouterA] interface gigabitethernet 2/0/1

[RouterA-Gigabitethernet2/0/1] igmp enable

[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] quit