On Sun, 10 Jun 2001, Zachary Uram wrote:
> what are layer 1 and layer 4 type devices?
Do a search for "OSI model".
http://www.lex-con.com/osimodel.htm
is probably a good link (just did a quick search myself).
This is BASIC knowledge for anyone in networking, very basic. They mention
this in the first few chapters/classes of any major networking book. If
you do not know it, it's time to start studying it. It might not make much
practial use, but it makes for better communicating with others when
you're describing problems.
--
Mikael Abrahamsson email: [EMAIL PROTECTED]
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