DGS-3024 Gigabit Ethernet Switch Manual
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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.
Static Router Ports Entry
Figure 7- 11. Current Static Router Ports Entries window
Select an entry and click Modify to access the following window: