5 - 278 WiNG 5.6 Access Point System Reference Guide
Figure 5-180
Device Overrides - Network - IGMP Snooping Screen
6. Set the following parameters to configure
General IGMP Snooping
values.
7. Set the following for
IGMP Querier
configuration:
Enable IGMP Snooping
Select the box to enable IGMP Snooping on the access point. This feature is enabled by
default.
Forward Unknown
Multicast Packets
Select this option to enable the access point to forward multicast packets from
unregistered multicast groups. If disabled, the
Unknown Multicast Forward
feature is
also disabled for the selected VLANs. This is enabled by default.
Enable IGMP Querier
Select this option to enable IGMP querier. IGMP snoop querier is used to keep host
memberships alive. It is primarily used in a network where there is a multicast streaming
server and hosts subscribed to the server and no IGMP querier present. The controller can
perform the IGMP querier role. An IGMP querier sends out periodic IGMP query packets.
Interested hosts reply with an IGMP report packet. IGMP snooping is only conducted on
wireless radios. IGMP multicast packets are flooded on wired ports. IGMP multicast
packet are not flooded on the wired port. IGMP membership is also learnt on it and only
if present, then forwarded on that port. An AP71xx model access point can also be an
IGMP querier.
IGMP Version
Use the spinner control to set the IGMP version compatibility to one of IGMP version 1,2
or 3. The default IGMP version is 3.
IGMP Query Interval
Sets the IGMP query interval. This parameter will be used only when the querier
functionality is enabled. Define an interval value in
Seconds
(1 - 18,000),
Minutes
(1 - 300)
or
Hours
(1 - 5) up to maximum of 5 hours. The default value is 60 seconds.
IGMP Robustness
Variable
Sets the IGMP robustness variable. The robustness variable is a way of indicating how
susceptible the subnet is to lost packets. IGMP can recover from robustness variable
minus 1 lost IGMP packets. Define a robustness variable from 1 - 7. The default
robustness value is 2.
Summary of Contents for WiNG 5.6
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