Concept Guide

show ap spectrum channel-summary
show ap spectrum channel-summary {ap-name <ap-name>}|{ip-addr <ip-addr>} freq-band 2.4ghz|5ghz
Description
This command displays a summary of the 802.11a or 802.11g channels seen by a spectrum monitor.
Syntax
Parameter Description
ap-name <ap-name>
Name of the spectrum monitor for which you want to view spectrum
information.
ip-addr <ip-addr>
IP address of the spectrum monitor for which you want to view spectrum
information.
freq-band 2.4ghz|5ghz
View information for a specific radio type, either 2.4 GHz or 5 GHz.
Usage Guidelines
This table can display data aggregate data for each channel seen by the spectrum monitor radio, including the
maximum AP power, interference and the signal-to-noise-and-interference Ratio (SNIR).
SNIR is the ratio of signal strength to the combined levels of interference and noise on that channel. This value
is calculated by determining the maximum noise-floor and interference-signal levels, and then calculating how
strong the desired signal is above this maximum.
A hybrid AP on a 20 MHz channel will see 40 MHz Wi-Fi data as non-Wi-Fi data.
Examples
The output of the example below shows information for 802.11a radio channels seen by the spectrum
monitor ap999.
(host)# show ap spectrum channel-summary ap-name ap999 freq-band 5ghz
Channel Summary Table
---------------------
Channel KnownAPs UnknownAPs Util(%) MaxAPSignal(dBm) MaxInterference(dBm) SNIR(dB)
------- -------- ---------- ------- ---------------- -------------------- -------
149 69 0 5 -39 -69 30
153 20 0 100 -42 -60 18
157 56 0 6 -53 -59 6
161 54 0 4 -43 -71 28
165 32 0 3 -27 -70 43
149+ 69 0 100 -39 -60 21
157+ 20 0 6 -43 -59 16
The output of this command includes the following information:
Dell Networking W-Series ArubaOS 6.5.x | Reference Guide show ap spectrum channel-summary | 1282