PLANET GSW-1602SF - Manual (Page 99)

User’s Manual of GSW-1602SF / GSW-2404SF
IGMP Snooping
Enabled
Enables or disables IGMP snooping on the VLAN. Ports be assign to the VLAN will be applied to
filter the Multicast stream.
Default mode is Enable.
IGMP Querying
Enabled
Enables or disables IGMP Query mode on the VLAN.
The Query mode is used to periodically check the multicast group for members that are no
longer active. In the case where there is more than one multicast router on a sub network, one
router is elected as the ‘queried’. This router then keeps track of the membership of the multicast
groups that have active members. The information received from IGMP is then used to
determine if multicast packets should be forwarded to a given sub network or not. The router can
check, using IGMP, to see if there is at least one member of a multicast group on a given subnet
work. If there are no members on a sub network, packets will not be forwarded to that sub
network.
Default mode is Enable.
Button
Apply Press this button for save current configuration of Web Smart Gigabit Switch.
Refresh Press this button for refresh IGMP Snooping Configuration screen of Web Smart Gigabit Switch.
Table 4-23 Description of the IGMP Snooping Configuration
Add a new VLAN group, the VLAN ID will be added to the table automatically with both “IGMP Snooping
Enabled” and “IGMP Querying Enabled”
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