User's Manual

hwc_apstartup.fm
Configuring the Wireless AP
Configuring Wireless AP settings
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 97
• 802.11b/g/n – Any channel can bond up or down as long as the band edge is
not exceeded.
• 802.11a/n – Bonding pairs are predefined.
Channel bonding is enabled by selecting the Channel Width on the 802.11b/g/n
and 802.11a/n tabs. When selecting Channel Width, the following options are
available:
•20MHz – Channel bonding is not enabled:
• 802.11n clients use the primary channel (20MHz)
• Non-802.11n clients, beacons, and multicasts use the 802.11a/b/g radio
protocols.
•40MHz – Channel bonding is enabled:
• 802.11n clients that support the 40MHz frequency can use 40MHz,
20MHz, or the 802.11a/b/g radio protocols.
• 802.11n clients that do not support the 40MHz frequency can use 20MHz
or the 802.11a/b/g radio protocols.
• Non-802.11n clients, beacons, and multicasts use the 802.11a/b/g radio
protocols.
• If the primary channel allows for both bonding types (up and down), you
can click the channel bond type from the Channel Bonding drop-down
list.
• If the primary channel allows for one of the bonding types (up or down),
the channel bond type is diplayed in the Channel Bonding drop-down
list.
•Auto – Channel bonding is automatically enabled or disabled, switching
between 20MHz and 40MHz , depending on how busy the extension channel
is. If the extension channel is busy above a prescribed threshold percentage,
which is defined in the 40MHz Channel Busy Threshold box, channel
bonding is disabled.
Channel selection — primary and extension
The primary channel of the Wireless 802.11n AP is selected from the Request
New Channel drop-down list. If auto is selected, the ACS feature selects the
primary channel. Depending on the primary channel that is selected, channel
bonding may be allowed: up, down, both, or neither.
Guard interval
The guard intervals ensure that individual transmissions do not interfere with one
another. The Wireless 802.11n AP provides a shorter guard interval that
increases the channel throughput. When a 40MHz channel is used, you can