# Ping help

1. Nov 26, 2012

### biferi

I am just playing with the Ping command and would like some help understanding it.

I used Ping on Google and 4 Packets of 32 Bytes of Data went out and came back.
And the TTL for eatch Packet was like this

TTL = 30 ms
TTL = 31 ms
TTL = 30 ms
TTL = 29 ms

Now I know that this is how long each Packet took to go and come back.
And it should stay under 50 ms. and anything over something is wrong.

But how do ppeople findout how far away the server is from just Pinging it?

I know 1,000 ms = 1 SEC. so if my Pakets took 31 ms to get to and come back from google does this mean the server is how many MIN. away it is?

2. Nov 26, 2012

### phinds

I doubt there is any strict correlation between the ping number and the distance to the server. It will depend on how many nodes the signal goes through to get there and back and how fast they are.

Also, "should stay under 50ms" is a decent rule of thumb, BUT ... there are many sites that are run off of shared servers, sometimes heavily shared servers, that will rarely give you better than, say, 100ms response time, so it is NOT just a matter of the signal getting there and back, there is also the processing time of the server and that can be slowed down by its load, having nothing to do with the rest of the signal transmission time.

3. Nov 26, 2012

### biferi

Thanks for getting back to me.

But I do want to know google gave me a TTL of 30ms 31ms 3ms 29ms they are all very very low.

so this tells me they all came back fast and had no prablems.

Is there any way to ajust the Size of each Packet from 32 Bytes to whatever you want?

4. Nov 26, 2012