Bandwidth Reservation in Overloaded MPLS/DiffServ Networks (CROSBI ID 558999)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Krile, Srećko ; Kos, Mladen ; Peraković, Dragan
engleski
Bandwidth Reservation in Overloaded MPLS/DiffServ Networks
In QoS end-to-end provisioning some bandwidth portions on the link may be reserved for certain traffic classes (and for particular set of users) so the congestion problem of concurrent flows (traversing the network simultaneously) can appear. It means that in overloaded and poorly connected MPLS/DS networks the CR (Constraint-based Routing) becomes insufficient technique. If traffic engineering (TE) is supported with appropriate traffic load control the congestion possibility can be predicted before the utilization of guaranteed service. In that sense the initial (pro-active) routing can be pre-computed much earlier, possible during SLA (Service Level Agreement) negotiation. In the paper a load simulation technique for load balancing control purpose is proposed. It could be a very good solution for congestion avoidance and for better load-balancing purpose where links are running close to capacity. To be acceptable for real application such complicated load control technique needs very effective algorithm. Proposed algorithm was tested on the network with maximum M core routers on the path and detail results are given for N=3 service classes. Further improvement through heuristic approach is made and results are discussed. Some heuristic options show significant complexity savings that is very important for load control in huge networks.
Bandwidth reservation; traffic engineering in DiffServ/MPLS networks; constraint-based routing; congestion avoidance during SLA creation; load balancing control
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Podaci o prilogu
37-45.
2009.
objavljeno
Podaci o matičnoj publikaciji
2009 Networking and Electronic Commerce Conference - NAEC 2009
Bezalel Gavish
Dallas (TX): Graduate School of Management
978-0-9820958-2-9
Podaci o skupu
NAEC 2009 (Networking and Electronic Commerce Conference)
predavanje
06.10.2009-11.10.2009
Riva del Garda, Italija