D-Link DGS-3312SR Release 3.5 Manual page 78

Parameter
VLAN ID
VLAN Name
Query Interval
Max Response Time
Robustness Variable
Last Member Query
Interval
Host Timeout
Route Timeout
Leave Timer
Querier State
Querier Router
Behavior
State
Click Apply to implement changes made.
DGS-3312SR Stackable Gigabit Layer 3 Switch
Description
The VLAN ID number.
The VLAN name.
The Query Interval field is used to set the time (in seconds) between transmitting
IGMP queries. Entries between 1 and 65535 seconds are allowed. The default value
is 125.
This determines the maximum amount of time in seconds allowed before sending an
IGMP response report. The Max Response Time field allows an entry between 1 and
25 (seconds). The default value is 10.
Adjust this variable according to expected packet loss. If packet loss on the VLAN is
expected to be high, the Robustness Variable should be increased to accommodate
increased packet loss. This entry field allows an entry of 2 to 255. The default value is
2.
Specifies the maximum amount of time between group-specific query messages,
including those sent in response to leave group messages. The default value is 1.
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 value is 260.
This is the maximum amount of time in seconds a route is kept in the forwarding table
without receiving a membership report. The default value is 260.
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.
Choose Enabled to enable transmitting IGMP Query packets. The default value is
Disabled.
This read-only field describes the behavior of the router for sending query packets.
Querier will denote that the router is sending out IGMP query packets. Non-Querier
will denote that the router is not sending out IGMP query packets. This field will only
read Querier when the Querier State and the State fields have been Enabled.
Select Enabled to implement IGMP Snooping. This is Disabled by default.
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