D-Link DES-3226SM Product Manual - Page 107

Last Member Query, Host Leave Timer

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DES-3226S Layer 2 Fast Ethernet Switch User's Guide The following fields can be set: Parameter Description VLAN Name Allows the entry of the name of the VLAN for which IGMP Snooping is to be configured. Query Interval Allows the entry of a value between 1 and 65500 seconds, with a default of 125 seconds. This specifies the length of time between sending IGMP queries. Max Response 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 Variable A tuning variable to allow for sub-networks 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 sub-networks that are expected to lose larger numbers of packets. Last Member Query Specifies the maximum amount of time between group-specific query messages, Interval including those sent in response to leave group messages. The default is 1 second. Querier State This field can be Switched using the pull-down menu between Disabled and Enabled. Host Timeout Specifies the maximum amount of time a host can be a member of a multicast group without the Switch receiving a host membership report. The default is 260 seconds. Host Leave Timer Specifies the maximum amount of time between the Switch receiving a leave group message from a host, and the Switch issuing a group membership query. If the Switch does not receive a response from the group membership query before the Host Leave Timer expires, the host address is deleted from the Switch's forwarding table. The default is 2 seconds. Route Timeout State Specifies the maximum amount of time a route will remain in the Switch's forwarding table without receiving a membership report. The default is 260 seconds. This field can be Switched using the pull-down menu between Disabled and Enabled. This is used to enable or disable IGMP Snooping for the specified VLAN. 104

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DES-3226S Layer 2 Fast Ethernet Switch User’s Guide
104
The following fields can be set:
Parameter
Description
VLAN Name
Allows the entry of the name of the VLAN for which IGMP Snooping is to be configured.
Query Interval
Allows the entry of a value between 1 and 65500 seconds, with a default of 125 seconds.
This specifies the length of time between sending IGMP queries.
Max
Response
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 Variable
A tuning variable to allow for sub-networks 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 sub-networks that are expected to lose larger numbers of packets.
Last Member Query
Interval
Specifies the maximum amount of time between group-specific query messages,
including those sent in response to leave group messages.
The default is 1 second.
Querier State
This field can be Switched using the pull-down menu between
Disabled
and
Enabled
.
Host Timeout
Specifies the maximum amount of time a host can be a member of a multicast group
without the Switch receiving a host membership report.
The default is 260 seconds.
Host Leave Timer
Specifies the maximum amount of time between the Switch receiving a leave group
message from a host, and the Switch issuing a group membership query.
If the Switch
does not receive a response from the group membership query before the Host Leave
Timer expires, the host address is deleted from the Switch’s forwarding table.
The default
is 2 seconds.
Route Timeout
Specifies the maximum amount of time a route will remain in the Switch’s forwarding table
without receiving a membership report.
The default is 260 seconds.
State <
Disabled
>
This field can be Switched using the pull-down menu between
Disabled
and
Enabled
.
This is used to enable or disable IGMP Snooping for the specified VLAN.