IPS Gateway User’s Guide (5/2002) 1-5Getting startedProcessing considerationsNote the considerations in this section before installing and setting up IPSGateway.Media selectionIPS Gateway allows you to map trays (specified by AFP/IPDS resourceswithin the host application) to the physical media available in the printer.The Media Setup tab in IPS Gateway allows you to associate each logicalIPDS (host) tray with a physical media definition in the printer. See “MediaSetup tab” for instructions on defining and mapping media.Spooling versus streaming queueYou can define the IPS Gateway queue as either a spooling queue or astreaming queue. To determine the best setting for your printingenvironment, review the sections below and the “Segmentation” section.Spooling queueA spooling queue completely spools an IPDS job from IPS Gateway to theDocuSP queue before printing begins. This results in a delay between thesubmission of the job and the printing of the first page. The delay may besignificant for large jobs.To help improve processing and print time for large jobs sent to a spooledqueue, IPS Gateway provides the Segmentation option, which segmentslarge jobs into multiple smaller jobs.For normal job processing, job segmentation should be disabled.However, Xerox recommends using job segmentation when using aspooled queue for any job over 500 pages. Although possible within thesoftware setup, segmentation to a streaming queue is not necessarysince pages are printed as soon as they are received.Because only one streaming queue can be active at a given time(depending on your other printing applications), you may elect to run IPSGateway to a spooled queue.Streaming queueA streaming queue prints pages as they are received, which results inminimal delay between the time the job is submitted and when printingbegins.Only one streaming queue can be active in DocuSP at a given time. If anon-IPS Gateway streaming queue is active when IPS Gateway submitsa job to its streaming queue on DocuSP, IPS Gateway stops processingand posts an “IPDS Not Ready” message until the other streaming queuehas completed.Streaming offers a benefit of being more reliable in the area of IPDS jobrecovery. See “IPDS job recovery” for more information.