DISTRIBUTED SYSTEMS LAB 31

Connection management based on Quality of Service (QoS) offers opportunities for better resource allocation in networks providing service classes. "Negotiation " describes the process of cooperatively configuring application and network resources for an application's use. Complex and long-running applications can reduce the inefficiencies of static allocations by splitting resource use into "eras " bounded by renegotiation of QoS parameters. Renegotiation can be driven by either the application or the network in order to best match application and network dynamics. A key element in this process is a translation between differing perspectives on QoS maintained by applications and network service provision. We model translation with an entity called a "broker". Comment