Would you be able to give me some
information on how the Ethereal trace counts lost packets that are reported in
the summary of a trace? Appreciate your assistance with this.
Catherine Kalke
Systems Engineering - Technology
Development Group
AT&T Wireless Services
work: + 1 425 580-6177
email: catherine.kalke@xxxxxxxxx
From: Boeve, Tim
Sent: Thursday, March 25, 2004
11:32 AM
To: Kalke, Catherine
Subject: RE: packet loss
calculation
No, but this is a good question for the
Ethereal mailing list [ethereal-users@xxxxxxxxxxxx] to see if someone can point
you to an answer.
Tim Boeve
From: Kalke, Catherine
Sent: Thursday, March 25, 2004
11:29 AM
To: Boeve, Tim
Subject: packet loss calculation
Tim,
We are working on the automation of the BAT testing tools which
will allow automated test execution and data collection. I have identified a
list of raw testing data to capture for each test run to allow us to get more
testing data to characterize application and network performance. One item on
the list is packet loss %. If we use Ethereal as the source to calculate this,
then could packet loss include the count of TCP segment retransmission / total
data sent? When I look at the Ethereal trace, I see a number of retransmissions
but when I look at the trace summary, I see 0 packets lost. Do you know how
Ethereal counts packets lost?
Catherine Kalke
Systems Engineering - Technology Development
Group
AT&T Wireless Services
work: + 1 425 580-6177
email: catherine.kalke@xxxxxxxxx