ProSoft Technology RLXIB-IHN-W-E - Manual (Page 72)

RadioLinx Configuration Manager RLXIB-IHN-WC ♦ 802.11n
User Manual Weatherproof Industrial Hotspot
Page 72 of 72 ProSoft Technology, Inc.
July 9, 2012
2.2.9 IGMP / Multicast Configuration
The device can be configured to ensure multicast traffic is sent out as directed
packets over the 802.11 network.
RLXIB-IHN-W radios support IGMP v1 and v2. The default operation of the
RLXIB-IHN-W radios is to have IGMP functionality enabled. Use this page to
specify settings associated with IGMP filtering and snooping.
Unknown multicast addresses can be sent to all ports (flood) or to none (filtered)
by selecting the Multicast Filtering option. You can also specify whether the radio
will generate IGMP queries, and configure the query interval time.
By RFC specification, only one device on a network should generate IGMP
queries. As such, RLXIB-IHW radios will only send a query if another device has
not sent a query within its Query Interval setting, even if Query Generation is
enabled.
Parameter Description
Multicast Filtering Use the dropdown menu to enable or disable Multicast filtering support
on this device. Disabling filtering will cause the radio to flood multicast
packets to all ports.
IGMP Query Generation Use the dropdown menu to enable or disable IGMP query generation
from this device.
IGMP Query Interval Number of seconds between queries (if not pre-emptied by another
devices queries).
Broadcast Threshold This is the number of interested clients (default is 10) for a multicast
group beyond which multicast packets are sent as multiple (3)
broadcasts instead of individually directed packets.
Multicast Stale Timeout Number of queries generated before a device is removed from the
multicast group on this radio if no response is received (default 3). This
is applicable only to dynamically created multicast memberships.
Click
Apply to save your changes.
Click Clear to discard your changes.