Differentiated service

About: Differentiated service is a research topic. Over the lifetime, 5539 publications have been published within this topic receiving 105225 citations.

Network function virtualization service chaining

Abstract: Systems and methods for managing a service set in network function virtualization (NVF) are provided. A service set can be defined as an ordered list of services to be applied to packet traffic and assigned to instances of the services in a distributed pool of virtual hosts. Responsive to determining that a first service in the service set is to be transferred from a first host to a second host, other services in the service set can also be identified to be transferred to the second host to maintain quality of service and latency as a packet is processed by the service set.

System and method for managing web services

Abstract: A system for managing a Web service comprises a service managed object associated with the Web service. The service managed object includes an interface configured to represent management features for the service to a manager. The manager can access information regarding the Web service via the interface such as a list of conversations associated with the Web service, and the relationship of the service managed object to other managed objects.

Provision of services in a communication system

Abstract: A method and arrangement for providing services for clients ( 3 ) associated with a data communication network is disclosed for use in a system where the services are provided by at least one external service provider ( 11 - 13 ). In the method offers are signalled from said at least one external service provider to an interface entity ( 2 ) associated with the data network ( 1 ), said offers associating with services provided by said service provider. The offers are processed at the interface entity in order to make a decision regarding the acceptance of the offers. Accepted services are then included into a register of services that are available for the clients. When a client wishes to use a service, a request for the service is signalled to the interface entity. The request is processed by the interface entity to find a matching service from the registered services. If a matching service is found, said service is requested from an external service provider providing said service. The request is communicated to said external service provider based on an appropriate protocol that enables initiation of a service provisioning session. The protocol is preferably such that the session may be initiated without any beforehand defined interfaces between the interface entity and the external service provider.

Network service version management

Abstract: Network service version management techniques are disclosed. Service access information, which is associated with access to a network service by a network service user, may be destined for a particular version of the network service. A determination is made as to whether a different version of the network service is accessible by the network service user. If so, then a further determination is made as to whether to select the different version of the network service to process the service access information. Any inconsistency between versions of the network service, such as different information requirements, can be handled by transforming received service access information. A replay function may also be provided, to have service access information again processed by the same or a different version of a network service. This function may be useful, for example, where a version of a service is rolled back or for debugging.

A Reference Architecture for Multi-Level SLA Management

Abstract: Service-orientation is the core paradigm for organising business interactions and modern IT architectures. At the business level, service industries are becoming the dominating sector in which solutions are flexibly composed out of networked services. At the IT level, the paradigms of Service-Oriented Architecture and cloud computing realise service-orientation for both software and infrastructure services. Service composition across different layers is a major advantage of this paradigm. Service Level Agreements (SLAs) are a common approach to specifying the exact conditions under which services are to be delivered, and thus are a prerequisite for supporting the flexible trading of services. However, typical SLAs are only specified at a single layer and do not provide insight into metrics or parameters at the various lower layers of the service stack. Thus they do not allow service providers to manage their service stack optimally. In this chapter, we present a reference architecture for a multi-level SLA management framework. We discuss fundamental concepts of the framework and detail its main architectural components and interactions.