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To access the contents, click the chapter and section titles.
Wireless Networking Handbook
Performance MonitoringPerformance monitoring addresses performance of a network during normal operations. You should concentrate on establishing a means to monitor central points of failure and any part of the network reliant on mechanical devices. Central points of failure tend to be components such as servers, network backbone cabling, switches, routers, and access points. The three main types of performance monitoring are as follows:
A network monitoring station identifies data traffic and collects statistics from workstations, servers, and other active network devices. These monitoring stations depend on the implementation of a management protocol, providing communications between the network monitoring stations and the managed devices. As mentioned previously, SNMP is currently the industry standard. Network monitors attach to the network via a network interface card and run in a passive mode, unable to disturb the normal operation of the network. Network monitors usually consist of the following features:
Plan to utilize network management tools that interface with the MIBs residing on the networks active elements. Most wireless LAN vendors, for example, supply a SNMP-based MIB that can be read by most network management software. Lucents WaveLAN comes with a MIB that interfaces with Novells NetWare Management System. For monitoring switches and hubs, you can utilize software sold by the vendor because it will interface best with the MIBs located on the devices; that is, if you are using 3Coms switches and hubs (their network monitoring product), Transcend would be the best choice. Cabletrons SPECTRUMIf your network implementation consists of a variety of vendors, consider using a common network monitoring product such as Cabletrons SPECTRUM. SPECTRUM Version 4.0 has the following features:
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