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CIT228 Chapter 7

CIT228 Wireless Networks Chapter 7 WAN Management And Chapter 8 Site Survey

TermDefinition
active mode A power management state in which the station is continuously awake.
ad hoc traffic indication message (ATIM) window)
adjacent channel interference Each cell is separated from other cells so that no two adjacent cells have the same channel number in order to reduce interference.
captive portal AP An AP that uses a standard Web browser to provide information, give the wireless user the opportunity to agree to a policy, or present valid login credentials.
channel stacking A technology that allows for increased capacity by having more than one SCA operating in an area.
Cloud management Connecting wireless devices together using the Internet in order to remotely manage them.
cochannel interference Reduced throughput caused as a result of all of APs set to the same channel number.
cooperative control A proprietary product in which each AP contains the capabilities of a WLC.
delivery traffic indication message (DTIM) A special TIM sent by an AP that is used when a station in power save mode must receive a frame intended for all stations.
Distributed WLAN architecture A wireless architecture configuration in which multiple APs form a non-centralized network through a wireless connection.
IEEE 802.11e-2005 The IEEE QoS standards.
IEEE 802.1q An IEEE standard for marking VLAN packets.
lightweight mesh AP A mesh AP that is centrally configured and managed through a WLC.
micro-cell architecture A wireless architecture that creates small areas of coverage.
multiple-channel architecture (MCA) A wireless architecture in which more than one channel is used in the wireless network.
power management A technology that allows a WLAN to conserve power.
power save mode A power management state in which the station turns off the wireless network interface card adapter to conserve battery life.
Power Save Multi-Poll (PSMP) An enhanced power management technology that can have either a scheduled or an unscheduled component.
Quality of Service (QoS) Prioritizing different types of frames over a network.
Scheduled PSMP (S-PSMP) An enhanced power management technology in which the AP sends a transmission schedule to one or more stations in a WLAN.
single-channel architecture (SCA) An architecture in which all of the APs use the same channel.
SNMP (Simple Network Management Protocol) A management protocol that provides information such as the number of bytes transmitted and received, the number of frames transmitted and received, the number of errors, and port status.
Spatial Multiplexing Power Save (SMPS) An enhanced power management technology that turns off MIMO radios.
split MAC A division in which lightweight APs only handle the real-time layer functions while MAC functionality is processed by the WLC.
total cost of ownership (TCO) The total cost of owning a product, including acquisition, setup, support, ongoing maintenance, service, and all operating expenses.
traffic indication map (TIM) A list of stations that have buffered unicast frames waiting at the AP.
trunking A single cable is used to support multiple virtual LANs.
Unscheduled Automatic Power Save Delivery (U-APSD) A technology in which whenever the AP sees a frame coming from the station it will immediately releases any frames it has been holding for the station.
virtual local area network (VLAN) A logical grouping of network devices within a larger physical network.
Voice over IP (VoIP) A telephony system that uses Internet Protocol (IP-based)
Wi-Fi Multimedia (WMM) A QoS specification created in 2004 by the Wi-Fi Alliance modeled after a wired network QoS prioritization scheme.
wireless network management system (WNMS) A set of hardware and/or software that can be used to provide unified management of a wireless network.
wireless switch Another name for a WLAN controller.
wireless VLANs A wireless virtual LAN typically used to segment traffic.
WLAN array A proprietary product marketed that contains a WLC that can be directly connected to as many as 16 integrated APs.
WLAN profile A set of specific configurations that can be applied to different wireless stations.
WMM Power-Save (WMM-PS) A technology that is similar to Unscheduled Automatic Power Save Delivery (U-APSD).
automated RF resource management A dynamic self-managing WLAN in which the wireless devices monitor the environment and then automatically adjust power levels or channels to compensate for changes.
bill of materials (BOM) A list of itemized software and/or hardware components that are needed for a new WLAN.
delay The amount of acceptable time that a late packet can arrive and still be used.
jitter The measure of delay between packets.
manual site survey A site survey that requires walking through the area of the WLAN while carrying a wireless client like a laptop or tablet computer.
predictive analysis simulation application Site survey software used in a predictive site survey that allows for building floor plans to be loaded and analyzed.
predictive site survey A site survey that is a virtual survey of the area that uses modeling techniques to design the wireless network.
protocol analyzer Hardware or software that captures packets to decode and analyze its contents.
site survey An in-depth examination and analysis of a WLAN site.
spectrum analyzer A device that scans the RF spectrum to can locate potential sources of interference.
Created by: Leisac