Defining Reusable Business-Level QoS Policies for DiffServ

Beller, A.; Jamhour, Edgard; Pellenz, Marcelo Eduardo

doi:10.1007/978-3-540-30184-4_4

Cited by 8 publications

(8 citation statements)

References 8 publications

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“…Re-usable high level business polices for network management may be modeled based on PCIM, and low-level policies may be based on the DiffServ PIB [14]. Various XMLbased policy provisioning architectures have been proposed to overcome the need to convert XML documents to binary data for exchange between the PDP and PEP, and reconverting to XML for processing at the devices.…”

Section: B Xml-driven Pbnmmentioning

confidence: 99%

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

Ozianyi

Good

Carrilho

et al. 2008

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference

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Policy Based Network Management (PBNM) simplifies the administration and management of communication networks. However due to the wide variety of policy representation forms, interoperability between different entities of PBNM systems becomes a concern. The Common Open Policy Service (COPS), which was standardized for policy control between a Policy Decision Function (PDF) and Policy Enforcement Point (PEP) had considerable shortfalls in efficiency and flexibility -its successor the Diameter protocol exhibits interoperability shortfalls. An XML-based policy provisioning solution presents great modeling capabilities that may overcome these shortfalls. The IP Multimedia Subsystem has adopted PBMN as the mechanism for resource and admission control. This paper reviews an XMLdriven architecture for policy control of DiffServ networks, and explores the incorporation of the proposed architecture into the IMS framework to perform policy control and enforcement. Proof of concept results of the XML-based policy control architecture are presented alongside design requirements for using it as an alternative to Diameter for IMS policy control.

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Section: B Xml-driven Pbnmmentioning

confidence: 99%

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

Ozianyi

Good

Carrilho

et al. 2008

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference

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“…This section will review research work addressing issues relating to policy representation and transportation using XML based technologies. (Beller et al, 2004) propose a framework for defining reusable business-level policies for DiffServ using XML for policy representation. Policies are designed following a modular approach to increase reusability.…”

Section: Related Workmentioning

confidence: 99%

“…In summary, whereas (Beller et al, 2004) and (Clemente et al, 2005) use COPS-PR for policy pro-visioning, we employ NETCONF. We think that this is a step forward because by using an XML-based provisioning protocol coupled with XML policy representations we simplify the internal structure of the PBNM system and reduce development costs.…”

Section: Related Workmentioning

confidence: 99%

Policy-Based Management of Diffserv Using XML Technologies

Carrilho¹,

Ventura²

2007

Proceedings of the Third International Conference on Web Information Systems and Technologies

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A design, implementation, and evaluation of a Policy-based Management framework for DiffServ networks using XML technologies is presented. XML is used for policy representation throughout the entire policy life cycle, as well as in the communication protocol, reducing development costs, while promoting clarity, simplicity, and interoperability. Furthermore, performance evaluation results show that the proposed scheme generates less network traffic than its COPS-PR counterpart when protocol messages are compressed. Moreover, XML messages generate higher processing delays. The added processing overhead caused by compression to XML messages is very small, thus the gains in reduced network traffic generated outweigh the losses in terms of processing delays.

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“…The rules can also comprise time conditions (class "Policy Time Period Condition"). Conditions can be grouped in two ways, represented by the attribute "PolicyRule.ConditionListType":• Disjunctive Normal Form (DNF): the conditions inside the same group are represented by the "AND" operation, and the groups by the "OR" operation; PCIM and PCIMe general structure (BELLER; JAMHOUR;PELLENZ, 2004)…”

mentioning

confidence: 99%

“…The classes are generic enough to represent any type of policies, but the implementation requires some classes specialization, as did (BELLER; JAMHOUR;PELLENZ, 2004) for QoS. In order to support such information, the information model should also model the elements the administrator manipulates to compose the business rules (User, SLA, Class of Service, Application, Servers), and the informationneeded to configure the devices.…”

mentioning

confidence: 99%

Orchestration of energy efficiency capabilities for a sustainable network management

Riekstin¹

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ICT) systems has been growing, implying in high operational costs and consequent increase of carbon emissions. Both in datacenters and telecom infrastructures, the networks represent a significant amount of energy spending. Given that, there is an increased demand for energy efficiency solutions, and several capabilities to save energy have been proposed. However, it is very difficult to orchestrate such energy efficiency capabilities, i.e., coordinate or combine them in the same network, ensuring a conflict-free operation and choosing the best one for a given scenario, ensuring that a capability not suited to the current bandwidth utilization will not be applied and lead to congestion or packet loss. Also, there is no way in the literature to do this taking business directives into account. In this regard, a method able to orchestrate different energy efficiency capabilities is proposed considering the possible combinations and conflicts among them, as well as the best option for a given bandwidth utilization and network characteristics. In the proposed method, the business policies specified in a high-level interface are refined down to the network level in order to bring highlevel directives into the operation, and a Utility Function is used to combine energy efficiency and performance requirements. A Decision Tree able to determine what to do in each scenario is deployed in a Software Defined Network environment. The proposed method was validated with different experiments, testing the Utility Function, checking the extra savings when combining several capabilities, the decision tree interpolation and dynamicity aspects. The orchestration proved to be valid to solve the problem of finding the best combination for a given scenario, achieving additional savings due to the combination, besides ensuring a conflict-free operation.

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Defining Reusable Business-Level QoS Policies for DiffServ

Cited by 8 publications

References 8 publications

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

XML-Driven Framework for Policy-Based QoS Management of IMS Networks

Policy-Based Management of Diffserv Using XML Technologies

Orchestration of energy efficiency capabilities for a sustainable network management

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