Netgear GS716Tv2 GS716Tv2/GS724Tv3 Software Admin Manual - Page 106

Configuring IGMP Snooping Queriers

Page 106 highlights

GS716Tv2 and GS724Tv3 Software Administration Manual Table 3-24. IGMP Snooping VLAN Configuration Fields (continued) Field Maximum Response Time MRouter Timeout Query Mode Query Interval Description Enter the amount of time in seconds that a switch will wait after sending a query on an interface because it did not receive a report for a particular group in that interface. This value must be less than the IGMP Query Interval time value. The range is 1 to (Group Membership Interval -1) seconds. Its value should be greater than the Group Membership Interval value. Sets the value for multicast router expiry time of IGMP Snooping for the specified VLAN ID. The valid range is 0-3600 seconds. Enable or disable the IGMP Querier Mode for the specified VLAN ID. Enter the value for IGMP Query Interval for the specified VLAN ID. Valid range is 1-18000 seconds. 2. Click Add to enable IGMP snooping on the specified VLAN. 3. Click Delete to disable IGMP snooping on the specified VLAN. 4. Click Cancel to cancel the configuration on the screen and reset the data on the screen to the latest value of the switch. 5. If you make any configuration changes, click Apply to apply the new settings to the switch. Configuration changes take effect immediately. Configuring IGMP Snooping Queriers IGMP snooping requires that one central switch or router periodically query all end-devices on the network to announce their multicast memberships. This central device is the 'IGMP querier'. The IGMP query responses, known as IGMP reports, keep the switch updated with the current multicast group membership on a port-by-port basis. If the switch does not receive updated membership information in a timely fashion, it will stop forwarding multicasts to the port where the end device is located. These pages enable you to configure and display information on IGMP snooping queriers on the network and, separately, on VLANs. The IGMP Snooping Querier folder contains links to the following features: • "IGMP Snooping Querier Configuration" on page 3-43 • "IGMP Snooping Querier VLAN Configuration" on page 3-44 • "IGMP Snooping Querier VLAN Status" on page 3-45 3-42 v1.0, July 2009 Configuring Switching Information

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GS716Tv2 and GS724Tv3 Software Administration Manual
3-42
Configuring Switching Information
v1.0, July 2009
2.
Click
Add
to enable IGMP snooping on the specified VLAN.
3.
Click
Delete
to disable IGMP snooping on the specified VLAN.
4.
Click
Cancel
to cancel the configuration on the screen and reset the data on the screen to the
latest value of the switch.
5.
If you make any configuration changes, click
Apply
to apply the new settings to the switch.
Configuration changes take effect immediately.
Configuring IGMP Snooping Queriers
IGMP snooping requires that one central switch or router periodically query all end-devices on the
network to announce their multicast memberships. This central device is the 'IGMP querier'. The
IGMP query responses, known as IGMP reports, keep the switch updated with the current
multicast group membership on a port-by-port basis. If the switch does not receive updated
membership information in a timely fashion, it will stop forwarding multicasts to the port where
the end device is located.
These pages enable you to configure and display information on IGMP snooping queriers on the
network and, separately, on VLANs.
The IGMP Snooping Querier folder contains links to the following features:
“IGMP Snooping Querier Configuration” on page
3-43
“IGMP Snooping Querier VLAN Configuration” on page
3-44
“IGMP Snooping Querier VLAN Status” on page
3-45
Maximum Response Time
Enter the amount of time in seconds that a switch will wait after sending
a query on an interface because it did not receive a report for a
particular group in that interface. This value must be less than the IGMP
Query Interval time value. The range is 1 to (Group Membership Interval
-1) seconds. Its value should be greater than the Group Membership
Interval value.
MRouter Timeout
Sets the value for multicast router expiry time of IGMP Snooping for the
specified VLAN ID. The valid range is 0–3600 seconds.
Query Mode
Enable or disable the IGMP Querier Mode for the specified VLAN ID.
Query Interval
Enter the value for IGMP Query Interval for the specified VLAN ID. Valid
range is 1–18000 seconds.
Table
3-24. IGMP Snooping VLAN Configuration Fields (continued)
Field
Description