Netgear GS516TP Software Administration Manual - Page 83

IGMP Snooping VLAN Configuration

Page 83 highlights

GS516TP Gigabit Smart Switches Field Description Description The text description of this Multicast table entry. Possible values are Management Configured, Network Configured, and Network Assisted. Interface The list of interfaces that are designated for forwarding (Fwd) and filtering (Flt) for the associated address. Click CLEAR to clear one or all of the IGMP Snooping entries. IGMP Snooping VLAN Configuration Use the IGMP Snooping VLAN Configuration screen to configure IGMP snooping settings for VLANs on the system.  To configure IGMP snooping settings for VLANs: 1. Select Switching > Multicast > IGMP Snooping > IGMP Snooping VLAN Configuration. 2. Select the VLAN ID and configure the IGMP Snooping values: • Fast Leave Admin Mode. Enable or disable the IGMP snooping fast leave mode for the specified VLAN ID. Enabling fast-leave allows the switch to immediately remove the Layer 2 LAN interface from its forwarding table entry upon receiving an IGMP leave message for that Multicast group without first sending out MAC-based general queries to the interface. You should enable fast leave admin mode only on VLANs where only one host is connected to each Layer 2 LAN port. This mode prevents the 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. The value for group membership interval of IGMP snooping for the specified VLAN ID. This value is calculated as follows: (Query Interval * 2) + Maximum Response Time. • Maximum Response Time. Enter the amount of time in seconds that a switch waits after sending a query on the VLAN because it did not receive a report for a particular group in that interface. The valid range is 5-20 seconds. This value must be less than the Host Timeout value. • MRouter Timeout. The amount of time that a switch waits to receive a query on the VLAN before removing it from the list of VLANs with multicast routers attached. This value is calculated as follows: Query Interval * 2. • 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 30-1800 seconds. The default is 60 seconds. 3. Click APPLY to send the updated configuration to the switch. Configuration changes take place immediately. 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. 83

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83
GS516TP Gigabit Smart Switches
Click
CLEAR
to clear one or all of the IGMP Snooping entries.
IGMP Snooping VLAN Configuration
Use the IGMP Snooping VLAN Configuration screen to configure IGMP snooping settings for
VLANs on the system.
To configure IGMP snooping settings for VLANs:
1.
Select
Switching > Multicast > IGMP Snooping > IGMP Snooping VLAN Configuration
.
2.
Select the VLAN ID and configure the IGMP Snooping values:
Fast Leave Admin Mode
. Enable or disable the IGMP snooping fast leave mode for
the specified VLAN ID. Enabling fast-leave allows the switch to immediately remove
the Layer 2 LAN interface from its forwarding table entry upon receiving an IGMP
leave message for that Multicast group without first sending out MAC-based general
queries to the interface. You should enable fast leave admin mode only on VLANs
where only one host is connected to each Layer 2 LAN port. This mode prevents the
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
. The value for group membership interval of IGMP snooping for the
specified VLAN ID. This value is calculated as follows: (Query Interval * 2) +
Maximum Response Time.
Maximum Response Time
. Enter the amount of time in seconds that a switch waits
after sending a query on the VLAN because it did not receive a report for a particular
group in that interface. The valid range is 5–20 seconds. This value must be less than
the Host Timeout value.
MRouter Timeout
. The amount of time that a switch waits to receive a query on the
VLAN before removing it from the list of VLANs with multicast routers attached. This
value is calculated as follows: Query Interval * 2.
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 30–1800 seconds. The default is 60 seconds.
3.
Click
APPLY
to send the updated configuration to the switch.
Configuration changes take place immediately.
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
.
Description
The text description of this Multicast table entry. Possible values are
Management Configured, Network Configured, and Network Assisted.
Interface
The list of interfaces that are designated for forwarding (Fwd) and filtering
(Flt) for the associated address.
Field
Description