High-Throughput APs

With the implementation of theIEEEInstitute of Electrical and Electronics Engineers.802.11ac802.11ac is a wireless networking standard in the 802.11 family that provides high-throughput WLANs on the 5 GHz band.standard, very-high-throughput can be configured to operate on the 5GHz兆赫。frequencybandBand refers to a specified range of frequencies of electromagnetic radiation.. High-throughput (802.11n802.11n is a wireless networking standard to improve network throughput over the two previous standards, 802.11a and 802.11g. With 802.11n, there will be a significant increase in the maximum raw data rate from 54 Mbps to 600 Mbps with the use of four spatial streams at a channel width of 40 MHz.)可以configured on both the 5GHz兆赫。and 2.4GHz兆赫。frequencybandsBand refers to a specified range of frequencies of electromagnetic radiation.. High-throughput is enabled by default, and can be enabled or disabled in the802.11a802.11a provides specifications for wireless systems. Networks using 802.11a operate at radio frequencies in the 5 GHz band. The specification uses a modulation scheme known as orthogonal frequency-division multiplexing (OFDM) that is especially well suited to use in office settings. The maximum data transfer rate is 54 Mbps.and802.11g802.11g offers transmission over relatively short distances at up to 54 Mbps, compared with the 11 Mbps theoretical maximum of 802.11b standard. 802.11g employs Orthogonal Frequency Division Multiplexing (OFDM), the modulation scheme used in 802.11a, to obtain higher data speed. Computers or terminals set up for 802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g devices can be compatible within a single network.radio profiles. For details, see2.4 GHz and 5 GHz Radio RF Management.

Two different profiles advanced define settings specific to high-throughput APs, thehigh-throughput radioprofile and thehigh-throughput SSIDprofile. Use theHigh-throughput radioprofile to configure your APs to advertise intolerance of 40 Mhz operation (by default, this option is disabled, and 40 Mhz operation is allowed).This profile also allows you to enable theCSD Overridefeature. When you turn on CSD override, CSD is disabled and only one antenna transmits data, even if they are being sent to high-throughput stations. TheHigh-throughput SSIDprofileconfigures the high-throughput SSID settings for 802.11n.

You must create and modify a high-throughput radio or high-throughputSSIDService Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network.profile to change default values for an AP radio, such as activating features not enabled by default, disabling features that are enabled by default, or modifying default values for configuration settings.

Stations are not allowed to use high-throughput withTKIPTemporal Key Integrity Protocol. A part of the WPA encryption standard for wireless networks. TKIP is the next-generation Wired Equivalent Privacy (WEP) that provides per-packet key mixing to address the flaws encountered in the WEP standard.stand-alone encryption, althoughTKIPTemporal Key Integrity Protocol. A part of the WPA encryption standard for wireless networks. TKIP is the next-generation Wired Equivalent Privacy (WEP) that provides per-packet key mixing to address the flaws encountered in the WEP standard.can be provided in mixed-modeBSSIDsBasic Service Set Identifier. The BSSID identifies a particular BSS within an area. In infrastructure BSS networks, the BSSID is the MAC address of the AP. In independent BSS or ad hoc networks, the BSSID is generated randomly.that support high-throughput. High-throughput is disabled on aBSSIDBasic Service Set Identifier. The BSSID identifies a particular BSS within an area. In infrastructure BSS networks, the BSSID is the MAC address of the AP. In independent BSS or ad hoc networks, the BSSID is generated randomly.if the encryption mode is stand-aloneTKIPTemporal Key Integrity Protocol. A part of the WPA encryption standard for wireless networks. TKIP is the next-generation Wired Equivalent Privacy (WEP) that provides per-packet key mixing to address the flaws encountered in the WEP standard.orWEPWired Equivalent Privacy. WEP is a security protocol that is specified in 802.11b and is designed to provide a WLAN with a level of security and privacy comparable to what is usually expected of a wired LAN..

This section describes the following topics:

Configuring Advanced High-Throughput Radio Settings

Configuring Advanced High-Throughput SSID settings