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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"> <TITLE>RE: PMP> Comments on Printer Port Monitor MIB 1.0 working draft dated March 21, 2005</TITLE> <META content="MSHTML 6.00.2800.1491" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Hi Bill,</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Because the MS tools use the value of 'hrDeviceIndex' to find and display</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>status for each SINGLE port (one print protocol bound to one network or </FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>local hardware </FONT></SPAN><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>interface).</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>There's nothing wrong with having more than one INSTANCE of the Printer</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>MIB (with different high-order 'hrDeviceIndex') displayed on a network system</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>for this purpose.</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Otherwise (using a single common 'hrDeviceIndex') if any port protocol is</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>down, they'll all appear to be down.  The MS tools do NOT inquire of the</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Channel table in the Printer MIB for port-by-port status.  And Mike Fenelon</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>has indicated that that's not changing any time soon.</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Please don't shoot the messenger - this design worked great for outboard</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>external network adaptors - it's admittedly cumbersome for a network printer</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>itself.</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4></FONT></SPAN> </DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>Cheers,</FONT></SPAN></DIV> <DIV><SPAN class=774272618-25032005><FONT face=Arial color=#0000ff size=4>- Ira</FONT></SPAN></DIV> <DIV> </DIV> <P><FONT size=2>Ira McDonald (Musician / Software Architect)<BR>Blue Roof Music / High North Inc<BR>PO Box 221  Grand Marais, MI  49839<BR>phone: +1-906-494-2434<BR>email: imcdonald@sharplabs.com</FONT> </P> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Bergman, Ron [mailto:Ron.Bergman@rpsa.ricoh.com]<BR><B>Sent:</B> Friday, March 25, 2005 12:36 PM<BR><B>To:</B> McDonald, Ira; Adams, Charles A; pmp@pwg.org<BR><B>Subject:</B> RE: PMP> Comments on Printer Port Monitor MIB 1.0 working draft dated March 21, 2005<BR><BR></FONT></DIV> <DIV id=idOWAReplyText74008 dir=ltr> <DIV dir=ltr><FONT face=Arial color=#000000 size=2>Ira,</FONT></DIV> <DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr><FONT face=Arial size=2>I don't understand your response.  If this is true, then this is not</FONT></DIV> <DIV dir=ltr><FONT face=Arial size=2>hrDeviceIndex as used by the printer and must be clearly indicated</FONT></DIV> <DIV dir=ltr><FONT face=Arial size=2>as such and should not be called hrDeviceIndex.</FONT></DIV> <DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr><FONT face=Arial size=2>Why does the index for the table not satisfy this requirement?</FONT></DIV> <DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV> <DIV dir=ltr><FONT face=Arial size=2>    Ron</FONT></DIV> <DIV dir=ltr> <HR tabIndex=-1> </DIV> <DIV dir=ltr><FONT face=Tahoma size=2><B>From:</B> McDonald, Ira [mailto:imcdonald@sharplabs.com]<BR><B>Sent:</B> Fri 3/25/2005 8:14 AM<BR><B>To:</B> Bergman, Ron; McDonald, Ira; Adams, Charles A; pmp@pwg.org<BR><B>Subject:</B> RE: PMP> Comments on Printer Port Monitor MIB 1.0 working draft dated March 21, 2005<BR></FONT><BR></DIV></DIV> <DIV> <P><FONT size=2>Hi Ron,<BR><BR>Going all the way back to the first Microsoft draft and ever since,<BR>it's clear that the MS "port" entry has to have a separate device<BR>index for each port, because the 'hr...' status objects have to be<BR>separate for EACH port. <BR><BR>Remember the main MS model is NOT an embedded printer.  It's either<BR>an external network adaptor or a spooler.  In both of these cases,<BR>only ONE protocol is being exposed fore each "port".<BR><BR>This isn't a new restriction.<BR><BR>In the case of an external network adaptor, each "port" is literally<BR>a different direct-connect printer.<BR><BR>Cheers,<BR>- Ira<BR><BR>Ira McDonald (Musician / Software Architect)<BR>Blue Roof Music / High North Inc<BR>PO Box 221  Grand Marais, MI  49839<BR>phone: +1-906-494-2434<BR>email: imcdonald@sharplabs.com<BR><BR>-----Original Message-----<BR>From: Bergman, Ron [<A href="mailto:Ron.Bergman@rpsa.ricoh.com">mailto:Ron.Bergman@rpsa.ricoh.com</A>]<BR>Sent: Thursday, March 24, 2005 3:03 PM<BR>To: McDonald, Ira; Adams, Charles A; pmp@pwg.org<BR>Subject: RE: PMP> Comments on Printer Port Monitor MIB 1.0 working draft<BR>dated March 21, 2005<BR><BR><BR>Ira,<BR><BR>Regarding your comment:<BR><BR>2. ppmPortHrDeviceIndex - This seems to imply an hrDeviceTable entry is<BR>needed for each port on the system. Is this the expected behavior?<BR>Or is this just the hrDeviceIndex of the printer?<BR>Or is the the hrDeviceIndex for the network card?<BR><BR><ira>  For the Microsoft tool (TCPMon), EACH port (channel) has to<BR>have a separate 'hrDeviceIndex' - this is different than typical<BR>Printer MIB implementations, but it's a Microsoft tool limitation.<BR>Note that Microsoft TCPMon _only_ supports LPR and Raw ports (no<BR>other protocol is supported or contemplated according to co-editor<BR>Mike Fenelon from the Microsoft Longhorn printing team), so this<BR>only means two 'hrDeviceIndex' values at most (for each printer).<BR></ira><BR><BR>I do not recall ever hearing this.  It certainly is not clear from<BR>the MIB text (see below) that this is the case.  If this is true<BR>then it is not really hrDeviceIndex that is indicated but is just<BR>ppmPortIndex.<BR><BR>Also, for the printers I work with there will be a minimum of 10<BR>ports reported.  If IPP is enable, there will be a minimum of 15.<BR>The maximum number will be 192.<BR><BR>        Ron<BR><BR>From the MIB:<BR>ppmPortHrDeviceIndex OBJECT-TYPE<BR>    SYNTAX      Integer32 (0..2147483647)<BR>    MAX-ACCESS  read-only<BR>    STATUS      current<BR>    DESCRIPTION<BR>"The value of 'hrDeviceIndex' in the IETF Host Resources MIB<BR>(RFC 1514/2790), to be used for status queries for this port if<BR>the value of 'ppmPortSnmpStatusQueryEnabled' is 'true'.<BR><BR>If this object is zero, then monitoring applications MUST NOT<BR>attempt status queries for this port in the IETF Host Resources<BR>MIB (RFC 1514/2790) and/or IETF Printer MIB (RFC 1759/3805)."<BR>    REFERENCE<BR>"hrDeviceStatus, hrPrinterStatus, hrPrinterDetectedErrorState i<BR>n IETF Host Resources MIB (RFC 1514/2790).<BR>prtChannelStatus in IETF Printer MIB (RFC 1759/3805)."<BR>    DEFVAL      { 0 }                   -- no host device index<BR>    ::= { ppmPortEntry 7 }<BR><BR></FONT></P></DIV></BODY></HTML>