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From: jbvb@FTP.COM (James B. Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: When is a link saturated?
Message-ID: <9101241613.AA19368@ftp.com>
Date: 24 Jan 91 16:13:05 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: jbvb@ftp.com
Organization: The Internet
Lines: 11


    For FTP the data connection can be, (and often?) is, negotiated away from
    the well-known port.  This will make it difficult to give priority to ftp
    data in the general case.
    
There exist FTP servers which won't initiate data connections to clients
unless the client's port is 20 (the well known FTP data port).  Thus, most
Internet-tested implementations can be expected to be identifiable.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901