[zeromq-dev] "MAY NOT" in RFCs

Robert Kern robert.kern at gmail.com
Fri Jan 13 13:08:39 CET 2012

On 1/13/12 12:01 PM, Robert Kern wrote:
> The Titanic Service Protocol has this line: "Implementations MAY NOT use status
> codes that are not defined here:".
>     http://rfc.zeromq.org/spec:9
> However, "MAY NOT" is not one of the key words defined in RFC 2119:
>     http://tools.ietf.org/html/rfc2119
> Did the author intend this to be "MUST NOT" or "SHOULD NOT"?

There are also a couple of uses of "MAY NOT" in http://rfc.zeromq.org/spec:11

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco

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