Configuring WLAN Settings for an SSID Profile

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Configuring WLAN Settings for an SSID Profile

You can configure WLAN settings using the Instant UI or CLI.

In the Instant UI

To configure WLAN settings:

In the Networks tab of the Instant main window, click the New link. The New WLAN window is displayed. The following figure shows the contents of the tab:

Figure 1 WLAN Settings Tab

Enter a name that uniquely identifies a wireless network in the Name (SSID) text box.

Based on the type of network profile, select any of the following options under Primary usage:



Click the Show advanced options link. The advanced options for configuration are displayed. Specify the following parameters as required.

Table 1: WLAN Configuration Parameters

Parameter

Description

Broadcast filtering

Select any of the following values:

All—When set to All, the IAP drops all broadcast and multicast frames except DHCP and ARP.

ARP—When set to ARP, the IAP converts ARP requests to unicast and send frames directly to the associated client.

Disabled— When set to Disabled, all broadcast and multicast traffic is forwarded.

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 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 IAP at every beacon. You can also configure a higher DTIM value for power saving.

Multicast transmission optimization

Select Enabled if you want the 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.

Select Enabled to allow 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.

Specify a value to set a threshold for DMO channel utilization. With DMO, the 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 IAP sends multicast traffic over the wireless link.

Specify the following parameters:

—If the 2.4 GHz band is configured on the 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.

—If the 5 GHz band is configured on the 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.

Specify the zone for the SSID. When the zone is defined in SSID profile and if the same zone is defined on an IAP, the SSID is created on that IAP. For more information on configuring zone details on an IAP, see Configuring Zone Settings on an IAP.

The following constraints apply to the zone configuration:

An IAP can belong to only one zone and only one zone can be configured on an SSID.

If an SSID belongs to a zone, all IAPs in this zone can broadcast this SSID. If no IAP belongs to the zone configured on the SSID, the SSID is not broadcast.

If an SSID does not belong to any zone, all IAPs can broadcast this SSID.

Bandwidth Limits

Under Bandwidth Limits:

—Select this checkbox to specify an aggregate amount of airtime that all clients in this network can use for sending and receiving data. Specify the airtime percentage.

— Select this checkbox to specify an aggregate amount of throughput that each radio is allowed to provide for the connected clients.

and —Specify the downstream and upstream rates within a range of 1 to 65535 Kbps for the SSID users. If the assignment is specific for each user, select the checkbox.

Wi-Fi Multimedia (WMM) traffic management

Configure the following options for WMM traffic management. WMM supports voice, video, best effort, and background access categories. To allocate bandwidth for the following types of traffic, specify a percentage value under Share. To configure DSCP mapping, specify a value under DSCP Mapping.

: For background traffic such as file downloads or print jobs.

— For best effort traffic such as traffic from legacy devices or traffic from applications or devices that do not support QoS.

— For video traffic generated from video streaming.

— For voice traffic generated from the incoming and outgoing voice communication.

For more information on WMM traffic and DSCP mapping, see Wi-Fi Multimedia Traffic Management

Select Enabled to route all DNS requests for the non-corporate domains to OpenDNS on this network.

Select a value to specify the band at which the network transmits radio signals. You can set the band to 2.4 GHz, 5 GHz, or All. The All option is selected by default.

Specify an interval for session timeout in seconds, minutes or hours. If a client session is inactive for the specified duration, the session expires and the users are required to log in again. You can specify a value within the range of 60-86400 seconds or up to 24 hours for a client session. The default value is 1000 seconds.

Select this checkbox if you do not want the SSID (network name) to be visible to users.

Select this checkbox if you want to disable the SSID. On selecting this, the SSID will be disabled, but will not be removed from the network. By default, all SSIDs are enabled.

Select the checkbox if you do not want to SSID profile to use uplink.

Specify the maximum number of clients that can be configured for each BSSID on a WLAN. You can specify a value within the range of 0 to 255. The default value is 64.

Specify a threshold value to limit the number of incoming probe requests. When a client sends a broadcast probe request frame to search for all available SSIDs, this option controls system response for this network profile and ignores probe requests if required. You can specify a Received signal strength indication (RSSI) value within range of 0 to 100 dB.

Click Next to configure VLAN settings. For more information, see Configuring VLAN Settings for a WLAN SSID Profile.

In the CLI

To configure WLAN settings for an SSID profile:

(Instant AP)(config)# wlan ssid-profile <name>

(Instant AP)(SSID Profile <name>)# essid <ESSID-name>

(Instant AP)(SSID Profile <name>)# type {<Employee>|<Voice>| <Guest>}

(Instant AP)(SSID Profile <name>)# broadcast-filter <type>

(Instant AP)(SSID Profile <name>)# dtim-period <number-of-beacons>

(Instant AP)(SSID Profile <name>)# multicast-rate-optimization

(Instant AP)(SSID Profile <name>)# dynamic-multicast-optimization

(Instant AP)(SSID Profile <name>)# dmo-channel-utilization-threshold

(Instant AP)(SSID Profile <name>)# a-max-tx-rate <rate>

(Instant AP)(SSID Profile <name>)# a-min-tx-rate <rate>

(Instant AP)(SSID Profile <name>)# g-max-tx-rate <rate>

(Instant AP)(SSID Profile <name>)# g-min-tx-rate <rate>

(Instant AP)(SSID Profile <name>)# zone <zone>

(Instant AP)(SSID Profile <name>)# bandwidth-limit <limit>

(Instant AP)(SSID Profile <name>)# per-user-bandwidth-limit <limit>

(Instant AP)(SSID Profile <name>)# air-time-limit <limit>

(Instant AP)(SSID Profile <name>)# wmm-background-dscp <dscp>

(Instant AP)(SSID Profile <name>)# wmm-background-share <share>

(Instant AP)(SSID Profile <name>)# wmm-best-effort-dscp <dscp>

(Instant AP)(SSID Profile <name>)# wmm-best-effort-share <share>

(Instant AP)(SSID Profile <name>)# wmm-video-dscp <dscp>

(Instant AP)(SSID Profile <name>)# wmm-video-share <share>

(Instant AP)(SSID Profile <name>)# wmm-voice-dscp <dscp>

(Instant AP)(SSID Profile <name>)# wmm-voice-share <share>

(Instant AP)(SSID Profile <name>)# rf-band {<2.4>|<5.0>|<all>}

(Instant AP)(SSID Profile <name>)# content-filtering

(Instant AP)(SSID Profile <name>)# hide-ssid

(Instant AP)(SSID Profile <name>)# inactivity-timeout <interval>

(Instant AP)(SSID Profile <name>)# work-without-uplink

(Instant AP)(SSID Profile <name>)# local-probe-req-thresh <threshold>

(Instant AP)(SSID Profile <name>)# max-clients-threshold <number-of-clients>

(Instant AP)(SSID Profile <name>)# end

(Instant AP)# commit apply