SMC Networks 1000BASE-X 用户手册

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This protocol allows a host to inform its local switch/router that it wants 
to receive transmissions addressed to a specific multicast address group. 
Use the IGMP Configuration screen to set key parameters for multicast 
filtering as shown below. 

Note: The default values are indicated in the sample screen.

IGMP Status

If enabled, the switch will monitor network traffic to 

determine which hosts want to receive multicast traffic.

Act as IGMP Querier If enabled, the switch can serve as the “querier”, which is 

responsible for asking hosts if they want to receive multicast 

traffic. (Not supported in the current firmware release.)

IGMP Query 

Count

The maximum number of queries issued for which there has 

been no response before the switch takes action to solicit 

reports.

IGMP Report 

Delay

The time (in seconds) between receiving an IGMP Report 

for an IP multicast address on a port before the switch sends 

an IGMP Query out that port and removes the entry from 

its list.