D-Link DWL-2600AP User Manual - Vlan Configuration
Configuring IGMP Snooping
D-Link
Unified Wired and Wireless Access System
Oct. 2015
Page 216
D-Link UWS User Manual
VLAN Configuration
Use the IGMP Snooping VLAN Configuration page to configure IGMP snooping settings for VLANs on the
system.
To access the IGMP Snooping VLAN Configuration page, click
LAN > L2 Features
> IGMP Snooping > VLAN
Configuration
in the navigation tree.
Figure 121: IGMP Snooping VLAN Configuration
Table 105: IGMP Snooping VLAN Configuration Fields
Field
Description
VLAN ID
From the drop-down menu, select the VLAN ID of the VLAN to modify, or
select New Entry to configure settings for a VLAN that does not have IGMP
Snooping enabled.
Admin Mode
Enable is the only available option from the drop-down menu. To disable the
IGMP snooping admin mode on the VLAN, select the VLAN from the VLAN ID
field and click
Delete
.
Fast Leave Admin Mode
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 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.
Group Membership Interval
The Group Membership Interval time is the amount of time in seconds that a
switch waits for a report from a particular group on a particular interface
before deleting the interface from the entry. This value must be greater than
the IGMPv3 Maximum Response time value. The range is 2 to 3600 seconds.
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 Group Membership Interval
time value. The range is 1 to 25 seconds.