The download area data simply indicates the download speed of your internet
connection.The more higher value you see,you get best download speed.
Where on the otherhand if you see low value somewhere 1 to 2 mbps,its simply worst download speed.
The upload value is the uploading speed of your ISP.Normally if you compare the
upload speed with download speed,it is always little bit lower than download
speed.Upload speed is very important for your daily task like back up file,
sending large attachment etc.The higher value indicates faster upload.
Ping is the major parameters to measure server reponse performance.The more
quick ping generates,you get better connection.It is a basic test to
recognize how fast your server response from otherside.The lower value is
expected between 40ms to 30 ms.
Jitter tells how stable your internet connection.Its shows fluctuations of the
ping value in milliseconds.The lower is better,the higher value indicates
worst connection stability.