Category > ProgrammingPosted 29 Dec 2017My Price10.00
NETW360 Week 7 iLab
I am having difficulty with this lab, I need it done by Sunday 12/13/15. Thank you :)Â
NETW360 Week 7 iLabTroubleshootng Common WLAN ProblemsFour WLAN troubleshooTng scenarios are presented in this lab. Students are expected to pracTce a typical troubleshooTng process: understanding the problem, idenTfying possible causes, verifying the causes, and recommending soluTons.When troubleshooTng, there are various ways of categorizing potenTal WLAN problems. One could look at them as connecTvity and throughput issues: First, a wireless device needs to be connected, and next, it requires an acceptable level of throughput. One could also look at them from the perspecTves of wireless clients, access points, and wired network segments. For instance, a wireless client that doesn’t support the appropriate authenTcaTon protocol won’t be able to connect to a Wi-Fi network. An access point whose network cable is overly stretched or loose could cause intermi±ent connecTon issues. If an authenTcaTon server malfuncTons, a wireless client could lose connecTon shortly a²er its iniTal associaTon.WLAN spectrum analyzers and packet sni³ers are two types of widely-used troubleshooTng tools. ´hey support an array of funcTons, such as passive monitoring, acTve tesTng, and traµc analysis.Below are some examples of common problems related to WLANs.1.RF interferenceis associated to the majority of WLAN problems. In theory, any device that operates on the ISM and UNII bands could potenTally interfere with WLAN transmissions. ´hese devices include, but are not limited to, microwave ovens, wireless video cameras, wireless game consoles, cordless phones, and baby monitors. RF interference could either be narrow-band or all-band. An access point can shi² to operate on a di³erent channel to avoid narrow-band interference, but it really cannot avoid all-band interference, for example, from older Bluetooth devices.2.Co-channel interferenceoccurs when mulTple access points in close proximity operate on the same channel. ´hese access points may or may not share the same network or ownership. Such interference could go undetected if the network bandwidth uTlizaTon is low or no real-Tme applicaTons present on the network.3.Coverage holesrefer to parts of a WLAN coverage area where the actual throughput is muchless than expected or there is no connecTvity. Even with a proper iniTal site survey, a WLAN coverage area could change due to new physical obstacles, replacement access points, and di³erent antennas.4.´he hidden nodeproblem occurs when two wireless clients on the same network cannot detect each other’s transmission. ´his renders the MAC layer contenTon avoidance Page 1of 4