IPP Mail Archive: Re: IPP> OPS - Ok that the 'any-value' out

Re: IPP> OPS - Ok that the 'any-value' out-of-band value has an attribute value? [URGENT email discussion needed]

From: Michael Sweet (mike@easysw.com)
Date: Tue Mar 14 2000 - 16:31:21 EST

  • Next message: Hastings, Tom N: "RE: IPP> OPS - Ok that the 'any-value' out-of-band value has an attribute value? [URGENT email discussion needed]"

    "Hastings, Tom N" wrote:
    > ...
    > So we want to continue these extensions, we will need to clarify
    > the Model document to indicate that the restriction on sending
    > out-of-band values applies to the out-of-band values defined in this
    > document and that future out-of-band values may be defined for use
    > in requests.

    I think the restriction should apply to the *operations* and not
    the values, since the existing out-of-band values may be of use to
    other extension operations.

    Since all of the current operations in the Model document specify
    actual values for each attribute, they would be covered under the
    "no out-of-band-values" restriction in requests for the "standard"
    operations.

    Also, I think we need to explicitly require that IPP servers and
    clients be able to handle any value tag, even if it is not
    defined in the Model and Protocol documents. Servers and clients
    can throw the unknown values away, but can't error out because
    they don't understand a value that conforms to the IPP attribute
    encoding scheme. 

    -- 
______________________________________________________________________
Michael Sweet, Easy Software Products                  mike@easysw.com
Printing Software for UNIX                       http://www.easysw.com

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