User's Manual

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The configuration of the attributes of the port is irrelative of the global STP mode. For example, if the protocol
status is set to “Disable” and the STP mode is also changed, the port will not run the protocol in the new mode.
The default value of the path cost of the port is 0, meaning the path cost is automatically calculated according
to the speed of the port. If you want to change the path cost, please enter another value.
15.17 IGMP-Snooping Configuration
15.17.1 IGMP-Snooping Configuration
If you click Layer-2 Config -> IGMP snooping, the IGMP-Snooping configuration page appears.
Figure 12 IGMP-snooping configuration
On this page you can set whether to make a switch to forward unknown multicasts, whether to enable IGMP
snooping, and whether to configure the switch as the querier of IGMP.
15.17.2 IGMP-Snooping VLAN List
If you click Layer-2 Config -> IGMP snooping vlan list, the IGMP-Snooping VLAN list page appears.
Figure 13: IGMP-snooping VLAN list
If you click New, IGMP-snooping VLAN configuration can be done. Through Web up to 8 physical ports
can be set on each IGMP snooping VLAN. If you click Cancel, a selected IGMP-Snooping VLAN can be
deleted; if you click Edit, you can modify the member port, running status and immediate-leave of IGMP-
Snooping VLAN.