Add a Wireless Interface (requires Level 10 permission)

1. Provide a name for the wireless interface.
2. In the Interface Description box, type the text description of the wireless interface. The description can be up to 256 alphanumeric characters long and contain spaces (for example, Lobby AP  interface 1). By default, the description is ieee80211-ap_id-index_ID.
3. In the Administrative Status drop-down list, select whether the interface is to be used:
   • Up--Enable the interface
   • Down--Disable the interface
   • Testing--AP is undergoing testing
4. In the Channel drop-down list, select the channel number for the wireless interface to use.

   The channel numbers that display are dependent on the RF Band Selection and the regulatory domain for each country; for example, in the United States 802.11b shows channels 1 through 11 and 802.11a shows channels 36, 40, 44, etc. Two access points can belong to the same virtual AP only if they are on the same channel. Thus, two neighboring access points on different channels cannot perform seamless handoff (0 ms).

5. Short preambles are more efficient on the air, but not all clients support them. If you enable short preambles, do not select both antennas in the Antenna Selection. In the Short Preamble list, select whether to enable use of short preambles:
   • On
   • Off
6. In the RF Band Selection list, select the RF Band this interface uses (selections are based on the AP model and radio cards installed); for example, 802.11an.
7. In the Antenna Selection list, select which antenna side the access point uses:
   • Left antenna
   • Right antenna
   • Both antennas
   • AP300 option TBD
   You can select one access point antenna to transmit left or right. If you select both antennas, the system picks the antenna with the strongest signal. You cannot enable short preambles and select both antennas.

8. AP radios operate at their maximum power level by default. High power level increases the signal strength of the frames received by the client stations, allowing a client station to decode frames at a higher rate and increasing the coverage area. This causes minimal interference because Virtual Cell technology moves clients to a better AP without re-association. For a very few cases, we recommend that you reduce the power level on APs due to co-channel-interference. Check with Support first to make sure your issue really is due to co-channel-interference. To change transmit power, change the value in the Transmit Power High (dBm) field. The maximum level depends on the country code and the RF band in use.

   • Valid range for an 802.11a  radio:  5 to 23—36 dBm (for US)
   • Valid range for an 802.11bg radio:  4 to 30 dBm (for US)
   • Valid range for an 802.11n radio: There is no valid range explicitly for 802.11n radio; use the same values as 802.11a or 802.11bg radio.

9. In the AP Mode list, select whether the radio for the interface is in Normal Mode (servicing clients) or Scanning Mode (monitoring for Rogue APs).

10. Protection Mechanism is no longer used in version 4.1.
11. Protection Mode is no longer used in version 4.1. 
12. In the Channel Width list, select:
    • 20 MHz
    • 40MHz Extension Channel Above
    • 40MHz Extension Channel Below
13. In the MIMO Mode list, select: 
    • 2x2 if you are using either AP1000 or AP300 with an 802.3af PoE 
    • 3x3 if you are using AP300 with a high-powered PoE or DC power
14. 802.11n only mode is for AP300/AP1000s with N capability. Select:
    • On: support only 802.11n
    • Off: (default) support 802.11an or 802.1bgn
15. Virtual Cell Mode enables Virtual Cell for AP300. Note that you also must set the ESS profile to Virtual Cell on and Virtual Port. Note that you cannot mix Virtual Cell and non Virtual Cell ESSIDs on the same AP300 radio. AP1000 radios always have Virtual Cell enabled.
    • On: enables per-station Virtual Cell on AP300
    • Off: (default) disables per-station Virtual Cell on AP300
16. Click OK to update the wireless interface table.