AirO is intended for technical and not-too-technical owners of Wi-Fi capable Android devices. It displays the health of the Wi-Fi (“Local Area”) connection, and measures the characteristics of a “Wide Area” connection to a server deeper in the network. It can be used to answer questions like:
• What’s wrong with my Wi-Fi today?
• How strong is my Wi-Fi signal?
• Is there evidence of wireless interference?
• Is the problem in the Wi-Fi connection, or out on the Internet (or corporate network)?
• Is the overall connection to the data center good enough to run my corporate apps?

For an admin guide, including instructions on setting up your Aruba network so mDNS (AirGroup) automatically configures target addresses for AirWave and iPerf servers (allowing the app as downloaded to work on different networks without user interverntion) see the Air Observer Admin Guide hosted on the Aruba Airheads Community web page http://community.arubanetworks.com/t5/Aruba-Apps/New-Admin-Guide-for-the-AirO-Air-Observer-app/td-p/229749 (or go to community.arubanetworks.com and search for "AirO").

The top “Wi-Fi and Local Area Network” section of the screen displays three measurements that show the health of the Wi-Fi connection:

• Signal Strength or RSSI in dBm
We measure signal strength first because if it’s poor, there is no chance of getting a good connection. The remedy, in simple terms, is to get closer to the access point.

• Link Speed.
The usual cause of low link speeds is poor signal strength. But sometimes, even when signal strength is good, interference on the air from Wi-Fi and non-Wi-Fi sources reduces link speeds.

• Ping. This is the familiar ICMP echo test to the network’s default gateway.
A low link speed will often cause long ping times. If link speeds are good but pings slow, it may be a long way to the default gateway over a narrow broadband connection.

The lower section of the screen displays results from tests between the device and a server computer, usually in the corporate data center or on the Internet. The address of this server is chosen from a number configured in ‘settings' – but once chosen, only one server address is used for these tests.

• Ping. There is a ping measurement to this server. It is the same ping test as above, but because this one goes farther it will normally (but not always) take longer. Again, 20msec would be fast and 500 msec would be slow.
Some networks may block ICMP (ping) traffic. In this case, the Wide Area Network ping test will always fail, but normal (e.g. Web) traffic may pass.

• Speedtest. The next tests are ‘speedtests’. For this, we use the iPerf function (iPerf v2). In a corporate context, this should be an iPerf server instance set up somewhere in the core of the network, probably a data center. Because it is a (TCP) throughput test, the figures here will never be more than about 50% of the ‘link speed’ figure for the Wi-Fi connection. The iPerf client in the app is configured to run in bidirectional mode, first an upstream test then downstream.

愛郎是用於Wi-Fi的能力Android設備的技術和不太技術擁有者。它顯示了Wi-Fi（“本地”）連接的健康狀況，並測量了“廣域”連接到服務器在網絡中更深的特點。它可以用來回答這樣的問題：
•有什麼毛病我今天的無線網絡？
•如何強是我的Wi-Fi信號？
•是否有無線干擾的證據？
•是否在Wi-Fi連接問題，或在互聯網（或企業網絡）上的？
•是將數據中心的不夠好，我運行的應用程序的企業的整體連接？

對於管理員指南，其中包括如何設置你的阿魯巴網絡，這樣的mDNS（AirGroup）指令自動配置了AirWave和iperf的服務器的目標地址（如允許下載到工作在不同的網絡，而無需用戶interverntion應用程序）的空中觀察管理指南託管在看阿魯巴Airheads社區網頁http://community.arubanetworks.com/t5/Aruba-Apps/New-Admin-Guide-for-the-AirO-Air-Observer-app/td-p/229749 （或去community.arubanetworks.com並搜索“愛郎”）。
 
頂部的“Wi-Fi無線和局域網”屏幕部分顯示三次測量，顯示了Wi-Fi連接的健康：

•信號以dBm強度RSSI或
我們首先測量信號強度，因為如果它是可憐的，就沒有機會得到一個很好的連接。補救措施，簡單來說，是更接近接入點。
 
•鏈接速度。
低鏈路速度通常的原因是信號強度較差。但有時，甚至當信號強度良好，在從Wi-Fi和非Wi-Fi的源氣的干擾降低連接速度。
 
•平。這是大家熟悉的ICMP echo測試到網絡的默認網關。
低鏈路速度往往會導致長平次。如果鏈接速度是好的，但坪慢，這可能是一個漫長的過程，在一個窄的寬帶連接的默認網關。
 
屏幕顯示的下段從設備和服務器計算機之間的測試結果，通常在公司數據中心或在互聯網上。該服務器的地址選擇從多個配置的“設置” - 但一旦選擇了，只有一個服務器地址被用於這些測試。

•平。有一個平測量到該服務器。這是相同的ping測試上面，而是因為這一次越走越遠，將通常（但並不總是）需要更長的時間。再次，20毫秒將是快速和500毫秒將是緩慢的。
有些網絡可能會阻止ICMP（平）交通。在這種情況下，廣域網Ping測試總是會失敗，但正常的（如網絡）流量可能會通過。
 
•SPEEDTEST。接下來的測試是“speedtests”。對於這一點，我們使用的iperf函數（的iperf V2）。在企業方面，這應該是建立在某處網絡的核心，可能是數據中心的iperf的服務器實例。因為它是一個（TCP）吞吐量測試，該數字在這裡絕不會超過50％的“鏈接速度”數字的Wi-Fi連接的。所述的iperf客戶在該應用被配置成在雙向模式下運行，則第一上游測試的下游。