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CIT228 Chapter 7
CIT228 Wireless Networks Chapter 7 WAN Management And Chapter 8 Site Survey
| Term | Definition |
|---|---|
| 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. |
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