nanog mailing list archives

Re: Network Riddle


From: Chris Rapier <rapier () psc edu>
Date: Fri, 29 Jun 2001 10:51:20 -0400



For all practical purposes, the server is the process that is listening
for incoming connections, while the client is the process that is issuing
active opens to a server. There's no requirement for stable port numbers,
and the roles are often flip-flopped around from their traditional
interpretations (FTP-DATA, H.323, games, etc).

Yes, there is no absolute requirement but in terms of real world
applications this is how most of them seem to act. I am not trying to
take into account every variable or possiblity, only those that roughly
approximate observed traffic.


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