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5.Troubleshooting Wireless - Coggle Diagram
5.Troubleshooting Wireless
spectrum analysis (2 sl)
Cisco Spectrum Expert
Then connect to remote sensor
can tell us what device , their name and location ausing interference, channel summry, RF power
Need to install the sensor with internal or external antenna
Meraki spectrum analysis
https://documentation.meraki.com/MR/Radio_Settings/Spectrum_Analysis_Overview
RF spectrum
Monitor from cloud dashboard
MetaGeeek Chanalyzer
can detect cochannle and overlapping channel
ekahaul site survey
can use for site survey and post site survey for torubleshooting
can analyze signal strength and SNR, noise, RTT and packet loss
can provide coverage holes, exccessive voip traffic or AP overload
excessive number of statiions per AP
Excessive load on channel
can tell us what device cause interference and their location
cisco cleanair
enable on WLC to provison on AP, can tell interferences
prerequisite
• Local—In this mode, each Cisco CleanAir-enabled access point radio provides air quality and interference
detection reports for the current operating channel only.
• FlexConnect—When a FlexConnect access point is connected to the controller, its Cisco CleanAir
functionality is identical to local mode.
• Monitor—When Cisco CleanAir is enabled in monitor mode, the access point provides air quality and
interference detection reports for all monitored channels.
SE mode
r to display and
analyze detailed spectrum da
l CleanAir system functionality is suspended while the AP is in this
mode, and no clients are served
wiFi Scanning sl
MetaGeek InSSIDEr
Is third parth adapter card
can run on window, MACs
can tell SSID, MAC address, channel data rates and security cochannel interference and congestion
security level wheterh is open or secure, newtowrk range, signal strength
Wifi-Analyzer
base on Android
can view SSId, cahnnel overlap, signal strength
Apple Airport Utility Scanner
built in Apple OS
can tell SSID, RSSI
wirelss config analyzer web site ?
https://cway.cisco.com/wireless-config-analyzer/
cisco online tool that need CCO login to check your WLC config for felxconnect, mobility check
overview sl?
spectrum analysis
can tell us interference issues
packet analysis
MetaGeek Eye P.A
window based
require special AirPcap NX
can tell us control, ,mgmt and data by type and usage
wireshark
AireOS GUI
other WLC OS is AireOS
can tell us active client , rogues AP, interferer, application usage , Top SSID, ping test, event capture
9800 is IOS-XE
client to AP connectivity
client reason code for association failure
can view from WLC monitor menu, in client section
example
5 is AP busy
2 is asoociated but not authorized
https://community.cisco.com/t5/wireless-mobility-documents/802-11-association-status-802-11-deauth-reason-codes/ta-p/3148055
AP power
803.af
15.4 W, after cable loss is 12.95
802.3at
up to 30W
infra Config
NTP
AAA
aaa authorization config command
No needed and it should be enabled by default with AAA authorization command 15
https://community.cisco.com/t5/network-access-control/command-confusion-aaa-authorization-config-commands/td-p/1874200