Thanks for the great links.
One of the best things about this list is the sharing of links.
Jim
EA Louie wrote:
> there are TONS of Sniffer resources out there. Unfortunately, many of them
> cost money because there are training courses to teach exactly what you're
> desiring to learn.
>
> Here are a few free (teaser) sites
>
> http://www.decodes.com/index.html
> http://www.networkuptime.com/
>
> BTW, you might try issuing a search in your favorite search engine on
> "Sniffer trace diagnoses" or "network protocol decodes"
>
> More specifically, diagnoses that Sniffer Pro gives are NAI's analysis
> (based on years of decoding traces) of the trace decode(s).
>
> What specifically is the concern with the TTL's, retransmissions, long ack
> times, etc? Do you understand what they are and why they happen, and what
> the effect is of these diagnoses (if any)? If that is your concern, then
> read "Internetworking with TCP/IP volume 1" by Doug Comer. There's lots of
> theory of operation of the TCP/IP stack behind the diagnoses that the
Expert
> spits out. The Sniffer help files help out with that theory a little bit
> too.
>
> Sniffer Pro sets certain threshholds for the Expert Analysis
> interpretations, and sometimes those threshholds are not accurate for your
> network. If you're looking for root cause, you'll have to dig a little
> deeper than just the diagnosis that Sniffer gives you, because once the
> diagnosis is done, the other 90% of the battle is isolating the problem and
> then convincing everyone else that that's where the problem lies based on
> YOUR detailed analysis and testing. And the diagnoses are not necessarily
> an indication that there is a problem in the network - sometimes, it's just
> a network characteristic that users are obliviously happy with and
> non-performance affecting.
>
> ...and everyone used to think that Sniffer traces were such an hard thing
to
> read - I remember back in the "old days" before they gave the Expert
> diagnoses having to decode the conversations - now I've gotten lazy and
> started to trust the Expert! yikes...I'm sounding like an old guy here...
> ;-)
>
> -e-
>
> ----- Original Message -----
> From:
> To:
> Sent: Monday, May 14, 2001 7:59 AM
> Subject: Sniffer Resources [7:4410]
>
> > Okay all you networking pros out there. Does anybody know of any good
> > Network General Sniffer resources? More specifically if I want to look
> > up diagnoses such as TTL's, retransmissions, long ack times etc.?
> >
> > jd
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
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