Re: ping command question

2004-06-21 Thread Bill Moran
adrian kok [EMAIL PROTECTED] wrote:
 Hi all
 
 Do you know why the command ping in unix and window
 is different?

Yes.

 I start from one ISP to ping other ISP
 
 1/ If the following result from window, it is good or
 not?
 lost = 7 within 3 thousand packets

No, that's not good.  There's no reason to be losing any
packets, unless there's a network problems.

However, depending on who those two ISPs are and how far
away from each other, that may be acceptable.

 2/ how do I kow the average ms is good or not?

Is it fast enough?

 3/ Which one (unix or window) is best for testing?

The Unix one.  Last I checked, the windows one rounded off
the RTTs, thus making it inaccurate for testing.

 Thank you very much for your advice
 
 Reply from 66.49.4.148: bytes=32 time=99ms TTL=57
 Reply from 66.49.4.148: bytes=32 time=109ms TTL=57
 Reply from 66.49.4.148: bytes=32 time=100ms TTL=57
 Reply from 66.49.4.148: bytes=32 time=95ms TTL=57
 
 Ping statistics for 66.49.4.148:
 Packets: Sent = 3534, Received = 3527, Lost = 7
 (0% loss),
 Approximate round trip times in milli-seconds:
 Minimum = 89ms, Maximum =  640ms, Average =  102ms
 Control-C

It seems like you've got a LOT of variation.  Either your sharing that net
connection with a lot of other services, or you've got problems.

-- 
Bill Moran
Potential Technologies
http://www.potentialtech.com
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Re: ping command question

2004-06-21 Thread Kirk Strauser
On Sunday 2004-06-20 07:56 pm, adrian kok wrote:

 I start from one ISP to ping other ISP

That's *probably* the answer.  The machine returning those pings may not be 
the one you think.  For instance, if one of the machines is behind a NAT 
gateway, then the gateway may be returning the pings and not the host you 
think you're pinging.
-- 
Kirk Strauser
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