To access the Internet, companies define a Service Level Agreement (SLA) with Internet Service Providers (ISPs). Nevertheless, the current Internet does not assure Quality of Service (QoS), what points toward the concept of network virtualization and software defined network (SDN) to support the Future Internet. Moreover, the initial parameter defined in the SLA could be insufficient if the tra...

The widespread use of SLA-regulated Cloud services, in which the violation of SLA terms may imply a penalty for the parties, have increased the importance and complexity of systems supporting the SLA lifecycle. Although these systems can be very different from each other, ranging from service monitoring platforms to auto-scaling solutions according to SLAs, they all share the need of having mac...

As the Internet is undergoing substantial changes, there are many demands for the quality of the communication. Differentiated Services was standardized to meet such requirements. Currently, it is assumed that Diffserv is used under static Service Level Agreement (SLA). Under static SLA, the agreement between the service provider and the service subscribers are made as a result of negotiation b...

This work aims at establishing the best practices and processes to define the life cycle of an SLA. For such purpose, the network management practices defined in the TMForum scope (according to the view offered by TOM [01] and eTOM [02]) are used as reference. Such best practices are distributed along the network management layer, in order to define the Network Performance indicators and their ...

Mobile applications and mobile application environment of next generation networks require enhanced quality of service (QoS) to support user’s service level agreement (SLA). This paper presents an adaptation technique at transport layer to minimize the impact of varying and adverse network condition along with security and priority to satisfy the SLA. The paper extends the transport layer funct...

This paper presents about a secure and non-obstructive billing system using the concept THEMIS. The main objective of this system is to provide a full-fledged trusted, billing system tailored from a cloud computing environment. The SLA (Service Level Agreement) sharing is done between user and CSPs (Cloud Service Provider). S-Mon forgery-resistive SLA monitoring mechanism is devised by TPM (Tru...

This paper describes a metamodeling strategy of Service Level Agreements for Digital Video Broadcasting services based on Service Level Agreement Language(SLAng). The purpose of the paper is to provide a detailed analysis of SLAs in this domain and provide a motivation for modeling and automating their management. We also discuss why precise and machine readable SLAs can improve the levels of a...

This paper presents a formal method to optimally choose Service Level Objectives (SLOs) in a Service Level Agreement (SLA) from a business perspective by pondering the cost of the IT infrastructure needed to support the IT services and the losses incurred from service degradations. The method is particularly applicable to business processes that are heavily IT dependent, such as e-commerce.

In the business Grid environment, the business relationship between a customer and a service provider should be clearly defined. The responsibility of each partner can be stated in the so-called Service Level Agreement (SLA). In the context of SLA-based workflows, the business model is an important factor to determine its job-resource-mapping policy. However, this aspect has not been described ...