Microsoft violates Mean Value Theorem

[InfoSec News <isn () c4i org>]

---------- Forwarded message ----------
Date: Mon, 13 May 2002 11:12:25 -0700
From: glen mccready <gkm () petting-zoo net>
To: 0xdeadbeef () petting-zoo net
Subject: Microsoft violates Mean Value Theorem
Resent-Date: Mon, 13 May 2002 11:12:38 -0700 (PDT)
Resent-From: 0xdeadbeef () petting-zoo net


Forwarded-by: Nev Dull <nev () sleepycat com>
From: Greg Rose <ggr () qualcomm com>

While investigating a VPN problem, I ran "ping" from a Windows2000 box
across a lossy link which crosses the Pacific Ocean 4 times to get the
response back to me.

Ping statistics for xx.xx.xx.xx:
     Packets: Sent = 120, Received = 99, Lost = 21 (17% loss),
Approximate round trip times in milli-seconds:
     Minimum = 550ms, Maximum =  691ms, Average =  468ms

So, the average time for those packets is significantly less than the 
minimum time, eh? They've clearly divided the total time for successful 
replies by the number of total packets *sent*, not *received*. Smart, huh? 
It certainly looks like that Windows ping command is much more efficient 
than the competition!

Greg.

Greg Rose                                       INTERNET: ggr () qualcomm com
Qualcomm Australia          VOICE:  +61-2-9817 4188   FAX: +61-2-9817 5199
Level 3, 230 Victoria Road,                http://people.qualcomm.com/ggr/
Gladesville NSW 2111    232B EC8F 44C6 C853 D68F  E107 E6BF CD2F 1081 A37C



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