Ethereal-dev: [Ethereal-dev] TCP 'problem' detection?

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From: Joel Noble <jnoble@xxxxxxxx>
Date: Wed, 11 Sep 2002 16:59:11 -0600

This is a copy of a message I sent to Ethereal-users earlier. As there were no responses there, I am assuming that what I'm looking for isn't in the current feature set. I'm sending the message to the -dev list to see if anyone is working on such features, or could point me in some other direction for them if it's out-of-scope for Ethereal's intended goals.

Thanks.  Here's the original message:

I started using Ethereal yesterday in debugging a strange network situation. Works as well as described: kudos, all!

One thing I was looking for, but did not find: some way where Ethereal can draw my attention to evidence of "problems" in TCP sessions, such as:
 - re-transmissions (maybe excessive re-transmissions)
 - slow responses
 - TCP sessions that don't complete a full start-up handshake

[Also, high levels of collisions could be highlighted]

Years and years ago, I had a brief exposure to a Network General Sniffer, and it's "Expert" mode made these sorts of high-level correlations, if I recall correctly.

I suspect that pulling these correlations together across many packets isn't something Ethereal does today. Are there any projects to add this in (as a plug in?), or anything like it? Am I missing the obvious? Perhaps a different tool already exists that can be used in conjunction with Ethereal?

Thanks again to the project contributors for such a great tool!

Joel Noble
jnoble@xxxxxxxx