Paper Info
Title
The structure and management of service level agreements in networks
Abstract
The paper proposes a structure for quality-of-service (QoS)-centered service level agreements (SLA), and a framework for their real-time management in multiservice packet networks. The SLA is structured to be fair to both parties, the service provider and their customer. The SLA considered here are for QoS assured delivery of aggregate bandwidth from ingress to egress nodes; however, the control and signaling is for the more granular flows or calls. A SLA monitoring scheme is presented in which revenue is generated by the admission of flows into the network, and penalty incurred when flows are lost in periods when the service provider is not SLA compliant. In the SLA management scheme proposed, the results of a prior off-line design are used, in conjunction with measurements taken locally at ingress nodes, to classify the loading status of routes. The routing and resource management are based on virtual partitioning and its supporting mechanism of bandwidth protection. The effectiveness of SLA management is measured by the robustness in performance in the presence of substantial diversity in actual traffic conditions. A simulation testbed called D'ARTAGNAN has been built from which we report numerical results for a case study. The results show that the SLA management scheme is robust, fair and efficient over a broad range of traffic conditions
Year
DOI
Venue
2002
10.1109/JSAC.2002.1003036
IEEE Journal on Selected Areas in Communications
Keywords
Field
DocType
digital simulation,packet switching,quality of service,telecommunication congestion control,telecommunication network management,telecommunication network routing,telecommunication traffic,D'ARTAGNAN,QoS,SLA management,SLA monitoring,bandwidth,bandwidth protection,call control,egress nodes,flow admission control,ingress nodes,multiservice packet networks,network management,off-line design,quality-of-service,real-time management,resource management,routing,service level agreements,service provider,signaling,simulation testbed,traffic conditions,virtual partitioning
Resource management,Service level,Computer science,Network packet,Quality of service,Computer network,Testbed,Service provider,Real-time computing,Bandwidth (signal processing),Packet switching
Journal
Volume
Issue
ISSN
20
4
0733-8716
Citations 
PageRank 
References 
55
3.34
10
Authors
3
Name
Order
Citations
PageRank
E. Bouillet1867.41
D. Mitra2201163.33
K. G. Ramakrishnan358798.53