Description: Uniquely identifies the job on the immediately upstream client, server or device as generated by that client, server or device. The server or device is specified by hrDeviceIndex. For an agent representing a spooling system, this object is the identifier generated by the submitting client and hrDeviceIndex identifies a logical device.

NOTE: Since multiple clients may each generate the same identifier for the job, the xcmJobIdentifierUpstream is not necessarily unique on the server. Client implementers are encouraged to generate client job ids that are unique. In some cases, the xcmJobSourceChannelType may help to disambiguate client job ids.

NOTE: This object in this MIB is a generalization of the corresponding ISO DPA attribute: job-identifier-on-client which is printer-centric.

ISO DPA: Job-identifier-on-client[-upstream] This attribute provides the job-identifier for this job to uniquely identify the job on the client submitting the job, and the value shall be assigned by that client. The client shall supply the value of the job-identifier-on- client[-upstream] attribute at the time that the client submits the job to the server, if such client has its own job-identifier for the job.

NOTE - This attribute is intended for jobs submitted from legacy servers which have their own job-identifier for the job. If a job passes through a chain of servers between the client initiating the job and the output device, the value of the job attribute job-identifier-on-client shall be the value of the job's job-identifier on the immediate upstream server and the

value of the job attribute job-identifier-on-printer[-device] shall be the value of the job's job-identifier on the immediate downstream server or printer.

NOTE - A job has attributes for identifying itself on the current server, on the immediate upstream server (where the job came from), and on the immediate downstream server or printer (where the job went). These attributes are job-identifier [job-identifier-on-system] job-identifier-on-client [job-identifier-upstream] job-identifier-on-printer [job-identifier-downstream] respectively.