Item

Description

 

Enable or disable the function of dropping unknown multicast packets.

 

Unknown multicast data refer to multicast data for which no entries exist in the IGMP

 

snooping forwarding table.

Drop Unknown

∙ With the function of dropping unknown multicast data enabled, the switch drops

all the unknown multicast data received.

 

 

∙ With the function of dropping unknown multicast data disabled, the switch floods

 

unknown multicast data in the VLAN to which the unknown multicast data

 

belong.

 

 

 

Enable or disable the IGMP snooping querier function.

 

On a network without Layer 3 multicast devices, no IGMP querier-related function

Querier

can be implemented because a Layer 2 device does not support IGMP. To address

this issue, you can enable IGMP snooping querier on a Layer 2 device so that the

 

 

device can generate and maintain multicast forwarding entries at data link layer,

 

thereby implementing IGMP querier-related functions.

 

 

Query interval

Configure the IGMP query interval.

 

 

General Query Source

Specify the source IP address of general queries. HP recommends you to configure a

IP

non-all-zero IP address as the source IP address of IGMP queries.

 

 

Special Query Source

Specify the source IP address of group-specific queries. HP recommends you to

IP

configure a non-all-zero IP address as the source IP address of IGMP queries

 

 

Return to Configuration task list.

Configuring IGMP snooping port functions

Select Network IGMP Snooping in the navigation tree to enter the basic configuration page and then click the Advanced tab to enter the page shown in a.

a.Advanced configuration

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