IPP> Re: New IPP Scheme

IPP> Re: New IPP Scheme

IPP> Re: New IPP Scheme

Manros, Carl-Uno B cmanros at cp10.es.xerox.com
Fri Jul 17 13:45:41 EDT 1998


Carl,

I think we should take the text suggested by Keith yesterday.

Carl-Uno

> -----Original Message-----
> From: Carl Kugler [mailto:kugler at us.ibm.com]
> Sent: Friday, July 17, 1998 9:45 AM
> To: cmanros at cp10.es.xerox.com
> Subject: RE: IPP> Re: New IPP Scheme
> 
> 
> True!
> 
> How about this instead:
> 
> IANA has assigned Well Known Port 631 to the default IPP port 
> number.  An IPP
> server listens on port 631 unless explicitly configured to 
> listen on one or
> more ports instead of, or in addition to, port 631.  If the 
> port is empty or
> not given in an "ipp" schemed URL, port 631 is assumed.
> 
>   -Carl
> 
> 
> 
> cmanros at cp10.es.xerox.com on 07/16/98 05:30:00 PM
> Please respond to cmanros at cp10.es.xerox.com
> To: Carl Kugler/Boulder/IBM at ibmus
> cc:
> Subject: RE: IPP> Re: New IPP Scheme
> 
> 
> Carl,
> 
> Your proposal isn't quite right either. An IPP server can 
> also listen to
> several ports e.g port 631 and port 80.
> 
> Carl-Uno
> 
> > -----Original Message-----
> > From: Carl Kugler [mailto:kugler at us.ibm.com]
> > Sent: Thursday, July 16, 1998 2:10 PM
> > To: ipp at pwg.org
> > Subject: RE: IPP> Re: New IPP Scheme
> >
> >
> > --=====================_160811464==_.ALT
> > > Content-Type: text/plain; charset="us-ascii"
> > >
> > > I wrote the sentences that you are asking about.  I tried
> > to pick words that
> > > would be unambiguous.
> > >
> > > The intention is that IPP software must be able to listen
> > on port 631 and
> > > may be able to listen on other ports.
> > > If such software allows an administrator to configure the
> > ports, then such
> > > an adminstrator may be able to have IPP software listen
> > other ports, such as
> > > port 80 and might make it be the only port that the IPP
> > server listens on.
> > > The customer has the right to do what he wants, even if we
> > don't think it is
> > > the wisest choice.
> > >
> > > Bob Herriot
> > >
> >
> > What I find ambiguous, then, are the words "in addition to"
> > and "as well" in these sentences:
> >
> >     "IPP server implementations may support other ports, in
> > addition to this port."
> >
> >     "It is REQUIRED that a printer implementation support
> > HTTP over the IANA assigned Well Known Port 631 (the IPP
> > default port), though a printer implementation may support
> > HTTP over port some other port as well."
> >
> > Maybe it should say:
> >
> >     "It is REQUIRED that a printer implementation support
> > HTTP over the IANA assigned Well Known Port 631 (the IPP
> > default port), though a printer implementation may be
> > configured to listen on some other port instead."
> >
> >     -Carl
> >
> > >
> > > At 10:24 AM 7/16/98 , Carl Kugler wrote:
> > > >Carl:
> > > >>
> > > >> The implementation MUST support port 631 however, mine
> > is administratively
> > > >> set to only OPERATE on port 80.  The code is compliant.
> > > >>
> > > >> Don
> > > >>
> > > >>
> > > >Hmmm... I think we need some clarification in the wording
> > here, because I
> > > think it's ambiguous as it stands.  Here's another quote:
> > "IPP server
> > > implementations MUST offer IPP services using HTTP over the
> > IANA assigned Well
> > > Known Port 631 (the IPP default port). IPP server
> > implementations may support
> > > other ports, in addition to this port."
> > > >
> > > >So you read "suport" and "offer IPP services" to mean "can
> > be configured to
> > > listen on" rather than "is required to listen on"?
> > > >
> > > >    -Carl
> > > >
> > > >>
> > > >>
> > > >> "Carl Kugler" <kugler%us.ibm.com at interlock.lexmark.com>
> > on 07/16/98
> > > >> 12:18:26 PM
> > > >>
> > > >> To:   ipp%pwg.org at interlock.lexmark.com
> > > >> cc:    (bcc: Don Wright)
> > > >> bcc:  Don Wright
> > > >> Subject:  RE: IPP> Re: New IPP Scheme
> > > >>
> > > >>
> > > >>
> > > >>
> > > >> ...
> > > >> > Sorry Larry, but my printer isn't on the default IPP
> > port of 631.  Mine
> > > >> is
> > > >> > on 80 so my URL is exactly right.  Not all
> > implementations MUST be on
> > > >> 631.
> > > >> ...
> > > >> That's not how I read
> > ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO/ipp-pro-980630
> > > >>
> > > >> It says "It is REQUIRED that a printer implementation
> > support HTTP over the
> > > >> IANA assigned Well Known Port 631...".  Therefore, a conforming
> > > >> implementation MUST be on 631, although it might also be
> > on some other port
> > > >> simultaneously.
> > > >>
> > > >> -----
> > > >> Original Message: http://www.findmail.com/list/ipp/?start=4106
> > > >> Start a FREE email list at http://www.FindMail.com/
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > > >
> > > >-----
> > > >Original Message: http://www.findmail.com/list/ipp/?start=4138
> > > >Start a FREE email list at http://www.FindMail.com/
> > > >
> > >
> > > --=====================_160811464==_.ALT
> > > Content-Type: text/html; charset="us-ascii"
> > >
> > > <html>
> > > <font size=3>I wrote the sentences that you are asking
> > about.&nbsp; I
> > > tried to pick words that <br>
> > > would be unambiguous.<br>
> > > <br>
> > > The intention is that IPP software must be able to listen
> > on port 631 and
> > > <br>
> > > may be able to listen on other ports.<br>
> > > If such software allows an administrator to configure the
> > ports, then
> > > such <br>
> > > an adminstrator may be able to have IPP software listen
> > other ports, such
> > > as <br>
> > > port 80 and might make it be the only port that the IPP
> > server listens
> > > on.&nbsp; <br>
> > > The customer has the right to do what he wants, even if we
> > don't think it
> > > is <br>
> > > the wisest choice.<br>
> > > <br>
> > > Bob Herriot<br>
> > > <br>
> > > <br>
> > > At 10:24 AM 7/16/98 , Carl Kugler wrote:<br>
> > > &gt;Carl:<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; The implementation MUST support port 631 however, mine is
> > > administratively<br>
> > > &gt;&gt; set to only OPERATE on port 80.&nbsp; The code is
> > > compliant.<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; Don<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;Hmmm... I think we need some clarification in the 
> wording here,
> > > because I think it's ambiguous as it stands.&nbsp; Here's another
> > > quote:&nbsp; &quot;IPP server implementations MUST offer
> > IPP services
> > > using HTTP over the IANA assigned Well Known Port 631 (the
> > IPP default
> > > port). IPP server implementations may support other ports,
> > in addition to
> > > this port.&quot;<br>
> > > &gt;<br>
> > > &gt;So you read &quot;suport&quot; and &quot;offer IPP
> > services&quot; to
> > > mean &quot;can be configured to listen on&quot; rather 
> than &quot;is
> > > required to listen on&quot;?<br>
> > > &gt;<br>
> > > &gt;&nbsp;&nbsp;&nbsp; -Carl<br>
> > > &gt;<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; &quot;Carl Kugler&quot;
> > > &lt;kugler%us.ibm.com at interlock.lexmark.com&gt; on 07/16/98<br>
> > > &gt;&gt; 12:18:26 PM<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; To:&nbsp;&nbsp; ipp%pwg.org at interlock.lexmark.com<br>
> > > &gt;&gt; cc:&nbsp;&nbsp;&nbsp; (bcc: Don Wright)<br>
> > > &gt;&gt; bcc:&nbsp; Don Wright<br>
> > > &gt;&gt; Subject:&nbsp; RE: IPP&gt; Re: New IPP Scheme<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; ...<br>
> > > &gt;&gt; &gt; Sorry Larry, but my printer isn't on the
> > default IPP port
> > > of 631.&nbsp; Mine<br>
> > > &gt;&gt; is<br>
> > > &gt;&gt; &gt; on 80 so my URL is exactly right.&nbsp; Not all
> > > implementations MUST be on<br>
> > > &gt;&gt; 631.<br>
> > > &gt;&gt; ...<br>
> > > &gt;&gt; That's not how I read
> > > <a
> > href="ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO/ipp-pro-980630"
> > eudora="autourl"><font
> > size=3>ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO/ipp-pro-980630</a><br>
> > > <font size=3>&gt;&gt; <br>
> > > &gt;&gt; It says &quot;It is REQUIRED that a printer 
> implementation
> > > support HTTP over the<br>
> > > &gt;&gt; IANA assigned Well Known Port 631...&quot;.&nbsp;
> > Therefore, a
> > > conforming<br>
> > > &gt;&gt; implementation MUST be on 631, although it might
> > also be on some
> > > other port<br>
> > > &gt;&gt; simultaneously.<br>
> > > &gt;&gt; <br>
> > > &gt;&gt; -----<br>
> > > &gt;&gt; Original Message:
> > > <a href="http://www.findmail.com/list/ipp/?start=4106"
> > eudora="autourl"><font
> > size=3>http://www.findmail.com/list/ipp/?start=4106</a><br>
> > > <font size=3>&gt;&gt; Start a FREE email list at
> > > <a href="http://www.findmail.com/" eudora="autourl"><font
> > size=3>http://www.FindMail.com/</a><br>
> > > <font size=3>&gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;&gt; <br>
> > > &gt;<br>
> > > &gt;<br>
> > > &gt;<br>
> > > &gt;-----<br>
> > > &gt;Original Message:
> > > <a href="http://www.findmail.com/list/ipp/?start=4138"
> > eudora="autourl"><font
> > size=3>http://www.findmail.com/list/ipp/?start=4138</a><br>
> > > <font size=3>&gt;Start a FREE email list at
> > > <a href="http://www.findmail.com/" eudora="autourl"><font
> > size=3>http://www.FindMail.com/</a><br>
> > > <font size=3>&gt; </font><br>
> > > </html>
> > >
> > > --=====================_160811464==_.ALT--
> > >
> > >
> > >
> >
> >
> >
> > -----
> > Original Message: http://www.findmail.com/list/ipp/?start=4144
> > Start a FREE email list at http://www.FindMail.com/
> >
> 
> 
> 
> 



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