SLA CREATION IN RELATION TO RESOURCE MANAGEMENT
Slavko Sari · 2003
While DiServ architecture solves the scalability problem of QoS provisioning, it fails to be the solution for end-toend provisioning. A combination of IntServ/RSVP signaling with aggregate trac handling mechanisms could solve such deciencies. To obtain quantitative end-to-end guarantees in DiServ architecture, based on trac handling mechanisms with aggregate o ws, some kind of congestion control through negotiation process (in new SLA creation) is necessary. In this paper an ecien t heuristic algorithm for end-to-end congestion control for N quality-of-service levels (service classes) is being developed. The problem is seen as an expansion problem of link capacities in given limits from a common source. QoS routing is in rm correlation with resource reservation process (resource management). If the optimal expansion sequence has any expansion value that exceeds allowed limits (link capacity) a new SLA cannot be accepted or must be redened. K e y w o r d s: quality of service in DiServ networks, constrained-based path selection, end-to-end QoS routing, SLA creation, trac handling mechanisms.