Path: utzoo!censor!geac!alias!mark
From: mark@alias.UUCP (Mark Andrews)
Newsgroups: comp.protocols.tcp-ip
Subject: Question about telnet RFC
Keywords: telnet
Message-ID: <662@alias.UUCP>
Date: 1 Dec 89 22:21:33 GMT
Distribution: na
Organization: Alias Research Inc., Toronto, ON Canada
Lines: 25

I am reading over RFC854, the telnet protocol specification and have come
upon a confusing paragraph. This excerpt is from from section 3b of
GENERAL CONSIDERATIONS:

      b. If a party receives what appears to be a request to enter some
      mode it is already in, the request should not be acknowledged.
      This non-response is essential to prevent endless loops in the
      negotiation.  It is required that a response be sent to requests
      for a change of mode -- even if the mode is not changed.

The last sentence seems to contradict the remainder of the paragaph. The 1st
line says "If the requested mode is already present, do not send an
acknowledgement", but the last sentence says "an acknowledgement should be
sent EVEN if the mode is not changed".

Could someone explain this ambiguity??


------------------------------------------------------------------------------
	Mark Andrews
	Systems Programmer,
	Alias Research,
	Toronto, Canada
Phone:	(416)-362-9181
UUCP:	mark%alias@csri.utoronto.ca OR alias!mark@csri.utoronto.ca


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