Netgear GS110TP GS108T/ GS110TP Smart Switch Software Administration Manual - Page 117

IGMP Snooping Querier, Host Timeout, Maximum Response Time, MRouter Timeout, Query Mode

Page 117 highlights

GS108T and GS110TP Smart Switch Software Administration Manual inadvertent dropping of the other hosts that were connected to the same layer 2 LAN port but were still interested in receiving multicast traffic directed to that group. Also, fast-leave processing is supported only with IGMP version 2 hosts. • Host Timeout. Sets the value for group membership interval of IGMP snooping for the specified VLAN ID. The valid range is (Maximum Response Time + 1) to 3600 seconds. • Maximum Response Time. Enter the amount of time in seconds that a switch will wait after sending a query on the VLAN because it did not receive a report for a particular group in that interface. value. The valid range is 1 to 25 seconds. Its value must be less than the Host Timeout value. • MRouter Timeout. Enter the amount of time that a switch will wait to receive a query on the VLAN before removing it from the list of VLANs with multicast routers attached. Enter a value between 0 and 3600 seconds. The default is 0 seconds, which means there is no expiration. • 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. The valid range is 1-1800 seconds. The default is 60 seconds. 2. Click Cancel to cancel the configuration on the screen and reset the data on the screen to the latest value of the switch. 3. To disable IGMP snooping on a VLAN and remove it from the list, select the check box next to the VLAN ID and click Delete. 4. To modify IGMP snooping settings for a VLAN, select the check box next to the VLAN ID, update the desired values, and click Apply. 5. Click Cancel to cancel the configuration on the screen and reset the data on the screen to the latest value of the switch. IGMP Snooping Querier 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 feature contains links to the following pages: • IGMP Snooping Querier Configuration on page 51 • IGMP Snooping Querier VLAN Configuration on page 52 • IGMP Snooping Querier VLAN Status on page 53 50 | Chapter 3: Configuring Switching Information

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50
|
Chapter 3:
Configuring Switching Information
GS108T and GS110TP Smart Switch Software Administration Manual
inadvertent dropping of the other hosts that were connected to the same layer 2 LAN
port but were still interested in receiving multicast traffic directed to that group. Also,
fast-leave processing is supported only with IGMP version 2 hosts.
Host Timeout
. Sets the value for group membership interval of IGMP snooping for
the specified VLAN ID. The valid range is (Maximum Response Time + 1) to 3600
seconds.
Maximum Response Time
. Enter the amount of time in seconds that a switch will
wait after sending a query on the VLAN because it did not receive a report for a
particular group in that interface. value. The valid range is 1 to 25 seconds. Its value
must be less than the Host Timeout value.
MRouter Timeout
. Enter the amount of time that a switch will wait to receive a query
on the VLAN before removing it from the list of VLANs with multicast routers attached.
Enter a value between 0 and 3600 seconds. The default is 0 seconds, which means
there is no expiration.
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.
The valid range is 1–1800 seconds. The default is 60 seconds.
2.
Click
Cancel
to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
3.
To disable IGMP snooping on a VLAN and remove it from the list, select the check box next
to the VLAN ID and click
Delete
.
4.
To modify IGMP snooping settings for a VLAN, select the check box next to the VLAN ID,
update the desired values, and click
Apply
.
5.
Click
Cancel
to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
IGMP Snooping Querier
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 feature contains links to the following pages:
IGMP Snooping Querier Configuration
on page
51
IGMP Snooping Querier VLAN Configuration
on page
52
IGMP Snooping Querier VLAN Status
on page
53