Systems Switch User Manual
DGS-3024 Gigabit Ethernet Switch Manual
Parameter Description
VLAN ID
This is the VLAN ID that, along with the VLAN Name, identifies the VLAN for which to modify
the IGMP Snooping Settings.
VLAN Name
This is the VLAN Name that, along with the VLAN ID, identifies the VLAN for which to modify
the IGMP Snooping Settings.
Query Interval
Allows the entry of a value between 1 and 65535 seconds, with a default of 125 seconds.
This specifies the length of time between sending IGMP queries.
Max Response Time
Sets the maximum amount of time allowed before sending an IGMP response report. A value
between 1 and 25 seconds can be entered, with a default of 10 seconds.
Robustness Value
A tuning variable to allow for subnetworks that are expected to lose a large number of
packets. A value between 2 and 255 can be entered, with larger values being specified for
subnetworks that are expected to lose larger numbers of packets. The default is 2 seconds.
Last Member Query
Interval
Specifies the maximum amount of time between group-specific query messages, including
those sent in response to leave group messages. A value between 1 and 25. The default is 1
second.
Host Timeout
This is the maximum amount of time in seconds allowed for a host to continue membership in
a multicast group without the Switch receiving a host membership report. The default is 260.
Route Timeout
This is the maximum amount of time in seconds a route is kept in the forwarding table without
receiving a membership report. The default is 260.
Leave Timer
This specifies the maximum amount of time in seconds between the Switch receiving a leave
group message from a host, and the Switch issuing a group membership query. If no
response to the membership query is received before the Leave Timer expires, the
(multicast) forwarding entry for that host is deleted. The default is 2
Querier State
Choose Enabled to enable transmitting IGMP Query packets or Disabled to disable. The
default is Disabled.
State
This field can be toggled between Enabled and Disabled and enables or disables IGMP for
the VLAN. The default is Disabled.
Click Apply to implement the new settings. Click the Show All IGMP Group Entries link to return to the Current IGMP
Snooping Group Entries window.
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