The present invention relates to an information processing system, such as a print system, to which a plurality of external devices, such as a photocopier, a scanner, or a MFP , are connected through network, and in particular relates to a line concentrator and an external device, both of which carry out arbitration of jobs among the plurality of external devices, {HEAD ~ an information processing system} including the line concentrator and {TAIL ~ the external device}, and a management method of the information processing system 
The present invention relates to an information processing system , such as a print system , to which a plurality of external devices , such as a photocopier , a scanner , or a MFP , are connected through network , and in particular relates to a line concentrator and an external device , both of which carry out arbitration of jobs among the plurality of external devices , { HEAD ~ an information processing system } including the line concentrator and { TAIL ~ the external device } , and a management method of the information processing system
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