H3C Technologies H3C Intelligent Management Center - Manual (Page 749)

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QoS—Quality of Service.
Radio policy—Defines a set of radio parameters.
Radio port—Port where an antenna is installed to send wireless signals. An AP typically has two radio
ports.
Radio type—Wireless protocol used by a radio. WSM supports the following wireless protocols:
802.11a, 802.11b, 802.11g, 802.11bg, 802.11at, 802.11an, 802.11gn, 802.11n (2.4 GHz), 802.11bgn,
802.11n and 802.11n (5 GHz).
RADIUS—Remote Authentication Dial-in User Service, which is a distributed information interaction
protocol that uses a client/server model. It can protect networks against unauthorized access and is
often used in network environments that require both high security and remote user access.
Rate set—Contains a set of supported, mandatory, and disabled rates that are used by the radio
types 802.11a, 802.11b, and 802.11g.
Real-time monitoring—WSM monitors manageable MSM series fat APs, online MSM series and
Comware-based fit APs, and online clients in real time.
Real-time report—Displays the most recent statistics, or displays statistics in a specific time period.
RF—Radio frequency.
Rogue AP—Unauthorized or malicious AP on the network.
Rogue client—Unauthorized or malicious client on the network.
RRM—Radio Resource Management, which manages RRM configurations, RRM calibration groups,
rate sets, MCS sets, and WIDS detection rules.
RRM calibration group—Contains a group of radios for which the channel lifetime and power lifetime
can be changed automatically by calculating the radio channel parameters and powers.RSN—Robust
Security Network, where RSN associations can be established.
RSSI—Radio signal strength indicator.
RTS—Request to Send, the EIA/TIA-232 control signal that requests a data transmission on a
communications line.
Rx Lifecycle—Maximum time period that a fit AP keeps a frame in the cache.
Sample MAC—MAC address of the sampled client for AP-based wireless location.
Sample point—Indicates the wireless signal of a location.
Scale—Specifies the ratio of the background image to the actual length of the building.
Scan channel—A fit AP can scan channels actively or passively. In active scanning, the fit AP
simulates a client to send probe requests to other fit APs. In passive scanning, the fit AP does not send
probe requests.
Security IE—Security Information Element, which is contained in the Beacon and Probe response
frames sent by a fit AP. The security IE includes RSN and WPA.
Short GI—Short guard interval, which guarantees that transmissions do not interfere with each other.
SN—Product serial number of an AP.
SNR—Signal noise ratio.
Spectrum analysis—Analyzes the frequency spectrum of wireless signals.