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From: jbvb@FTP.COM (James B. Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Is the Internet usable for wide-area interactive conversations?
Message-ID: <9106191528.AA24776@ftp.com>
Date: 19 Jun 91 15:28:49 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: jbvb@ftp.com
Organization: The Internet
Lines: 11


    .... Keep in mind that an active TCP connection---e.g., a remote login---
    dies the second that the network becomes unreachable. ...

Some implementations (many 4bsd based implementations) actually drop the
connection on an ICMP error, but others keep it in place and continue
retransmitting for quite a while (PC/TCP) or forever (KA9Q).  You get
lousy response time, but you don't lose your type-ahead.

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