Topic
Differentiated service
About: Differentiated service is a research topic. Over the lifetime, 5539 publications have been published within this topic receiving 105225 citations.
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Patent•
10 Sep 2014TL;DR: In this paper, a system and method for placing inline services having multiple instances in a service provider network is presented, where service chaining policy requirements, the number of service instances, etc. are used as input, services and their multiple instances are placed within the network such that an overall network metric is optimized for all subscriber data flows.
Abstract: A system and method for placing inline services having multiple instances in a service provider network. In one implementation, a topology of the service provider network and services to be placed therein are defined. Using service chaining policy requirements, the number of service instances, etc. as input, services and their multiple instances are placed within the network such that an overall network metric is optimized for all subscriber data flows. The implementation uses softwared defined networks (SDN) and OpenFlow.
35 citations
21 Dec 2010
TL;DR: An aggregation model is formally defined to enable the automation of hierarchical aggregation of Service Level Agreements and leads to the discovery of various aggregation patterns in context with service composition and business collaboration.
Abstract: IT-based Service Markets require an enabling infrastructure to support Service Value Chains and service choreographies resulting from service composition scenarios. This will result into novel business models where services compose together hierarchically in a producer-consumer manner to form service chains of added value. Service Level Agreements (SLAs) are defined at various levels in such a hierarchy to ensure the expected quality of service for different stakeholders. Automation of service composition directly implies the aggregation of their corresponding SLAs. Aggregation of hierarchical SLAs leads to cross-enterprize business networks such as Virtual Enterprize Organizations (VEO), Extended Enterprizes and Value Networks. During the hierarchical aggregation of SLAs, certain SLA information pertaining to different stakeholders is meant to be restricted and can be only partially revealed to a subset of their business partners. Based on our notions of SLA Choreography and SLA-Views, we formally define an aggregation model to enable the automation of hierarchical aggregation of Service Level Agreements. The aggregation model leads to the discovery of various aggregation patterns in context with service composition and business collaboration.
35 citations
TL;DR: Traditional reference service is re-conceptualized as a composite of five distinct but inter-related services: directional and general information, technical assistance, information lookups for the client, research consultation, and instruction.
35 citations
TL;DR: A supporting distributed architecture in terms of functionality and components is described, which enables the integration of the IN architecture and the Internet and proves that the use of distributed platforms, open APIs, and object-oriented techniques are enabling factors in achieving full interoperability between heterogeneous networks and terminals.
35 citations
Patent•
31 Jan 2003
TL;DR: In this paper, a method of selecting a suitable service for the delivery of a communication across an integrated network is disclosed, where a computer programmed to act as a purchasing agent with data indicating the desirability of stability in the network service (that data representing the price the user is prepared to pay for stability) is enabled.
Abstract: A method of selecting a suitable service for the delivery of a communication across an integrated network is disclosed. Before now, users had to select the service that best suited their needs at the time of each delivery. By providing a computer programmed to act as a purchasing agent with data indicating the desirability of stability in the network service (that data representing the price the user is prepared to pay for stability) an automatic selection of the service to be provided to the communication is enabled. An embodiment is described in which different degrees of stability are given to different content file deliveries in dependence on the importance attached to the recipient by a content provider. The invention could equally be used to provide an appropriate services for many different types of network traffic.
35 citations