I want to send some data around the circumference of the earth from my computer and back to my computer. How do you suppose I can accomplish this?
I tried searching for something online to handle this, but I was unable to find anything!
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As far as I'm aware, it's not possible to do because there is no way for you to specify which path the packet will take. Even if that were possible, it may be hard to determine which is the right path.
The internet routing protocols are designed to always take the shortest (or least cost) route. So sending a packet to yourself is going to be very short.
But, since the aim of your experiment is to determine how long it would take to travel around the globe you could try to locate a server that is close to the opposite side of the world from where you are that can be pinged. Then, double the result and it will be give you an approximate time.
By the way, the answer you get back may very well be quite meaningless. Those numbers can change as routes change, traffic flows build up and so forth. So you may get a number that is double what you had before when you run the test later in the day.
One server that I know of that is about 1/3 of the way on the other side of the globe is one my company has. If I ping that I get
So If I multiply that by 3 I get ~756ms.
Again, it's fairly useless information because the largest link delay may be introduced between you and your internet service provider. Some ADSL can have up 100ms ping, and it's only going across town.
Just ran the test again and I got an average of 167ms to travel approximately 1/3 of the globe. Multiplying by 3 I get 501ms.
Based on your comment, to see how long it would take...
According to the laws of physics, thats the minimum time it would take, if it were a straight shot... which it isnt.