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JackDinn

Ping () @error

8 posts in this topic

Im looking to gather packet loss, i dont really want to use StdoutRead of @ComSpec

So im looking at the @error return of the standard Ping() but have a couple of questions.

if i Ping() some random addy like Ping("shshlsghwlgrhr") it dont return @error = 3 "Bad destination" why ?

also can i assume that a packet loss will set the @error = 4 ?

thx.


Thx all,Jack Dinn.

 

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#2 ·  Posted (edited)

Hi JackDinn,

what result do you get when you ping "shshlsghwlgrhr"? Some ISP have the (bad/stupid) habbit that they try to catch a wrong spelled domain and redirect to a navigation page.

If you experience a packet loss, it would be an erro 1 or 2.

Edited by Hannes123

Regards,Hannes[spoiler]If you can't convince them, confuse them![/spoiler]

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hmm, all a bit odd

1 = Host is offline

2 = Host is unreachable

3 = Bad destination

4 = Other errors

so whats the difference between @error 1 and 2 ?

whats @error 3 and 4 for ?

in fact i cant see what any off these errors mean.

i shall just have to use what i was using before i updated my AI version , if i get an @error i count it as a packetloss. i have to assume the URL the user is pinging to is correct.

something like this :-

ping 3 times to URL ; make sure the url is correct and the server is responding

if any of the Pings return a reasonable (<1000ms) return then

For $x= 1 to 100

Pause for flood protection 30ish ms

Ping url

if @error=1 or @error=2 then $packetloss+=1

next

Packetloss = $packetloss & "%"

I would have done it with the console but its so slow at sending multiple pings Ping bbc.co.uk -n 100 , i cant figure out why or how to speed it up.


Thx all,Jack Dinn.

 

JD's Auto Internet Speed Tester

JD's Clip Catch (With Screen Shot Helper)

Projects :- AutoIt - My projects

My software never has bugs. It just develops random features. :-D

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Hi JackDinn,

hmm, all a bit odd

1 = Host is offline

2 = Host is unreachable

3 = Bad destination

4 = Other errors

so whats the difference between @error 1 and 2 ?

whats @error 3 and 4 for ?

1 could be "offline" or package loss

2 could be sth like "your own network connection is down"

3 could be a wrong hostname or a malformatted IP address

4 ???

i shall just have to use what i was using before i updated my AI version , if i get an @error i count it as a packetloss. i have to assume the URL the user is pinging to is correct.

there's the _TCPIpToName function (maybe new in 3.3) you can use to verify if your DNS returns a valid information.

:unsure:


Regards,Hannes[spoiler]If you can't convince them, confuse them![/spoiler]

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#5 ·  Posted (edited)

o right i shall have a look at _TCPIpToName,

I suppose what i really want to know is exactly which error a lost packet does return. Are you saying thee that a packet loss will always return error ==1 and will never return any of the others ?

wouldn't mind simulating packet loss (just to test with) but after looking into it it looks complicated and mainly described for linux anyhow.

Cheers.

Edited by JackDinn

Thx all,Jack Dinn.

 

JD's Auto Internet Speed Tester

JD's Clip Catch (With Screen Shot Helper)

Projects :- AutoIt - My projects

My software never has bugs. It just develops random features. :-D

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Ah well I would need to test it too,

all I know is that you have sometimes different messages if you do a ping from the command line.

E.g. "Host not found", "Timeout" or "destination unreachable".

If you boot a windows PC/Server and do a "ping server -t" whilst it boots you'll receive "timeouts" and "unreachable" error messages. :unsure:


Regards,Hannes[spoiler]If you can't convince them, confuse them![/spoiler]

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I think that this page might help tell you what the different returns might mean


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hmm, so please correct me if im wrong but it looks like a packet lost can cause any of the errors 1, 2 or 3 if im only checking for packetloss in both directions (not checking for which way the packet was lost).

thx for the reading material , i must get and learn networking properly some time !!


Thx all,Jack Dinn.

 

JD's Auto Internet Speed Tester

JD's Clip Catch (With Screen Shot Helper)

Projects :- AutoIt - My projects

My software never has bugs. It just develops random features. :-D

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