PMP Mail Archive: RE: PMP> Comments on Printer Port Monitor

RE: PMP> Comments on Printer Port Monitor MIB 1.0 working draft dated March 21, 2005

From: Bergman, Ron (Ron.Bergman@rpsa.ricoh.com)
Date: Thu Mar 24 2005 - 15:03:22 EST

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    Ira,

    Regarding your comment:

    2. ppmPortHrDeviceIndex - This seems to imply an hrDeviceTable entry is
    needed for each port on the system. Is this the expected behavior?
    Or is this just the hrDeviceIndex of the printer?
    Or is the the hrDeviceIndex for the network card?

    <ira> For the Microsoft tool (TCPMon), EACH port (channel) has to
    have a separate 'hrDeviceIndex' - this is different than typical
    Printer MIB implementations, but it's a Microsoft tool limitation.
    Note that Microsoft TCPMon _only_ supports LPR and Raw ports (no
    other protocol is supported or contemplated according to co-editor
    Mike Fenelon from the Microsoft Longhorn printing team), so this
    only means two 'hrDeviceIndex' values at most (for each printer).
    </ira>

    I do not recall ever hearing this. It certainly is not clear from
    the MIB text (see below) that this is the case. If this is true
    then it is not really hrDeviceIndex that is indicated but is just
    ppmPortIndex.

    Also, for the printers I work with there will be a minimum of 10
    ports reported. If IPP is enable, there will be a minimum of 15.
    The maximum number will be 192.

            Ron

    From the MIB:
    ppmPortHrDeviceIndex OBJECT-TYPE
        SYNTAX Integer32 (0..2147483647)
        MAX-ACCESS read-only
        STATUS current
        DESCRIPTION
    "The value of 'hrDeviceIndex' in the IETF Host Resources MIB
    (RFC 1514/2790), to be used for status queries for this port if
    the value of 'ppmPortSnmpStatusQueryEnabled' is 'true'.

    If this object is zero, then monitoring applications MUST NOT
    attempt status queries for this port in the IETF Host Resources
    MIB (RFC 1514/2790) and/or IETF Printer MIB (RFC 1759/3805)."
        REFERENCE
    "hrDeviceStatus, hrPrinterStatus, hrPrinterDetectedErrorState i
    n IETF Host Resources MIB (RFC 1514/2790).
    prtChannelStatus in IETF Printer MIB (RFC 1759/3805)."
        DEFVAL { 0 } -- no host device index
        ::= { ppmPortEntry 7 }



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