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From: postel@VENERA.ISI.EDU
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Network Temperature Protocol
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Date: 24 Jul 90 00:48:54 GMT
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Network Working Group                                          J. Postel
Request for Comments: XXXX                                           ISI
                                                               July 1990

                     Temperature Quote Protocol

Status of this Memo

This RFC suggests an Experimental Protocol for the Internet community.
Hosts on the Internet that choose to implement a Temperature Quote
Protocol are encouraged to experiment with this protocol.

Introduction

A useful debugging and measurement tool is a temperature quote
service.  A temperature quote service simply sends a short message
(the temperature) without regard to the input.

TCP Based Temperature Quote Service

One temperature quote service is defined as a connection based
application on TCP.  A server listens for TCP connections on TCP port
16.  Once a connection is established a short message (the
temperature) is sent out the connection (and any data received is
thrown away).  The service closes the connection after sending the
quote.

UDP Based Temperature Quote Service

Another temperature quote service is defined as a datagram based
application on UDP.  A server listens for UDP datagrams on UDP port
16.  When a datagram is received, an answering datagram is sent
containing the temperature (the data in the received datagram is
ignored).

Temperature Syntax and Semantics

The temperature quote is the current temperature at the location of
the server reported in degrees Celsius (or centigrade).

It is transmitted as decimal digits represented as ASCII printing
characters, preceded with a plus or a minus sign.

Examples:

	+22		; a pleasant temperature for people
	-3		; a bit on the cool side