Reference Guide

Dell PowerConnect W-Series ArubaOS 6.1 CLI | Reference Guide show ap spectrum channel-summary | 745
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
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.
Examples
The output of the example below shows information for 802.11a radio channels seen by the spectrum monitor
ap999.
The output of this command includes the following information:
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.
(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
Column Description
Channel An 802.11a or 802.11g radio channel.
Known APs Number of valid APs identified on the radio channel.
UnKnown APs Number of invalid or rogue APs identified on the radio channel.
Channel Util (%) Percentage of the channel currently in use.
Max AP Signal (dBm) Signal strength of the AP that has the maximum signal strength on a channel.