SNR S2989G-48TX-DC — настройка многоадресной передачи и IGMP на коммутаторах [264/553]

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S2989G-24TX Operation Manual

Chapter 5 Multicast Protocol Related Configuration

4-39

place of Multicast Router in scenario 1. Let’s assume VLAN 60 is configured in SwitchA,

including ports 1, 2, 10 and 12. Port 1 connects to the multicast server, and port 2

connects to Switch2. In order to send Query at regular interval, IGMP query must enabled

in Global mode and in VLAN60.

The configuration steps are listed below:

SwitchA#config

SwitchA(config)#ip igmp snooping

SwitchA(config)#ip igmp snooping vlan 60

SwitchA(config)#ip igmp snooping vlan 60 L2-general-querier

SwitchB#config

SwitchB(config)#ip igmp snooping

SwitchB(config)#ip igmp snooping vlan 100

SwitchB(config)#ip igmp snooping vlan 100 mrouter interface ethernet 1/0/1

Multicast Configuration

The same as scenario 1

IGMP Snooping listening result:

Similar to scenario 1

Scenario 3: To run in cooperation with layer 3 multicast protocols.

SWITCH which is used in Scenario 1 is replaced with ROUTER with specific

configurations remains the same. And multicast and IGMP snooping configurations are

the same with what it is in Scenario 1. To configure PIM-SM on ROUTER, and enable

PIM-SM on vlan 100 (use the same PIM mode with the connected multicast router)

Configurations are listed as below:

switch#config

switch(config)#ip pim multicast-routing

switch(config)#interface vlan 100

switch(config-if-vlan100)#ip pim sparse-mode

IGMP snooping does not distribute entries when layer 3 multicast protocol is enabled. It

only does the following tasks.

 Remove the layer 2 multicast entries.

⚫ Provide query functions to the layer 3 with vlan, S, and G as the

parameters.