Concept Guide

Parameter Description
Broadcast filtering Select any of the following values:
l All—When set to All, the W-IAP drops all broadcast and multicast frames except DHCP
and ARP, IGMP group queries, and IPv6 neighbor discovery protocols.
l ARP—When set to ARP, the W-IAP drops all broadcast and multicast frames except
DHCP and ARP, IGMP group queries, and IPv6 neighbor discovery protocols and
additionally converts ARP requests to unicast and send frames directly to the
associated client.
l Disabled— When set to Disabled, all broadcast and multicast traffic is forwarded to
the wireless interfaces.
DTIM interval The DTIM interval indicates the delivery traffic indication message (DTIM) period in
beacons, which can be configured for every WLAN SSIDprofile. The DTIMinterval
determines how often the W-IAP should deliver the buffered broadcast and multicast
frames to associated clients in the powersave mode. The default value is 1, which means
the client checks for buffered data on the W-IAP at every beacon. You can also configure a
higher DTIM value for power saving.
Multicast
transmission
optimization
Select Enabled if you want the W-IAP to select the optimal rate for sending broadcast and
multicast frames based on the lowest of unicast rates across all associated clients. When
this option is enabled, multicast traffic can be sent at up to 24 Mbps. The default rate for
sending frames for 2.4 GHz is 1 Mbps and 5.0 GHz is 6 Mbps. This option is disabled by
default.
Dynamic multicast
optimization
Select Enabled to allow W-IAP to convert multicast streams into unicast streams over the
wireless link. Enabling Dynamic Multicast Optimization (DMO) enhances the quality and
reliability of streaming video, while preserving the bandwidth available to the non-video
clients.
NOTE: When you enable DMO on multicast SSID profiles, ensure that the DMO feature is
enabled on all SSIDs configured in the same VLAN.
DMO channel
utilization threshold
Specify a value to set a threshold for DMO channel utilization. With DMO, the W-IAP
converts multicast streams into unicast streams as long as the channel utilization does not
exceed this threshold. The default value is 90% and the maximum threshold value is 100%.
When the threshold is reached or exceeds the maximum value, the W-IAP sends multicast
traffic over the wireless link.
Transmit Rates Specify the following parameters:
l 2.4 GHz—If the 2.4 GHz band is configured on the W-IAP, specify the minimum and
maximum transmission rate. The default value for minimum transmission rate is 1
Mbps and maximum transmission rate is 54 Mbps.
l 5 GHz—If the 5 GHz band is configured on the W-IAP, specify the minimum and
maximum transmission rate. The default value for minimum transmission rate is 6
Mbps and maximum transmission rate is 54 Mbps.
Zone Specify the zone for the SSID. When the zone is defined in SSID profile and if the same
zone is defined on a W-IAP, the SSID is created on that W-IAP. For more information on
configuring zone details, see Configuring Zone Settings on a W-IAP on page 88.
Table 20: WLAN Configuration Parameters
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