Download Network Control and Engineering for QoS, Security and by Abderrahim Benslimane, Omar Moussaoui (auth.), Dominique PDF

By Abderrahim Benslimane, Omar Moussaoui (auth.), Dominique Gaïti, Guy Pujolle, Ahmed Al-Naamany, Hadj Bourdoucen, Lazhar Khriji (eds.)

Service and community services has to be capable of fulfill the calls for for brand new companies, enhance the standard of carrier, lessen the price of community carrier operations and upkeep, keep an eye on functionality and adapt to consumer calls for. those demanding situations are so very important for the way forward for our communique setting that it truly is necessary to examine assorted ways for controlling and optimizing community resources.

Network keep watch over and Engineering for QoS, safety and Mobility II addresses the matter of community keep an eye on and engineering with a spotlight on regulate of caliber of provider, administration of defense, and supervision of mobility. New tendencies in those varied fields also are investigated.

This quantity comprises the lawsuits of the second one overseas convention on community keep an eye on and Engineering (NETCON) for caliber of carrier, safeguard and Mobility, which convened in Oman in October 2003. The convention was once subsidized through the overseas Federation for info Processing (IFIP) and arranged by means of IFIP's operating teams 6.2 on community and Internetwork structure, 6.6 on community administration, and 6.7 on shrewdpermanent Networks.

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Additional info for Network Control and Engineering for QoS, Security and Mobility II: IFIP TC6 / WG6.2 & WG6.7 Second International Conference on Network Control and Engineering for QoS, Security and Mobility (Net-Con 2003) October 13–15, 2003, Muscat, Oman

Sample text

Knowing that only network node Nl which is concerned with that packet, it sends the event back to it, and finally the policy actions are applied on the packet. This is just too clumsy as a conceptual view of a packet Ievel QoS assurance mechanism. Of course, an implementation of Ponder won't do as such if has to handle network Ievel QoS. But, this implies not following the idea of event as we know it from the language definition. Hence, we need to add a new language construct which differentiates this special type of events.

The IETF defined a set of information models to carry up all various aspects of any managed environment. At the top of the hierarchy is the Core Information Model (CIM), which is composed of a small set of classes and associations that establish a conceptual framework for the schema of the rest of the managed environment. Second, comes the Policy Core Information model (PCIM, and recently extended to PCIMe) which tries to define a set of classes and relationships that' provide an extensible means for defining policy control of managed objects [6].

We deduced finally that this notion seems very desirable as a feature in a policy specification language. The rationale behind this concems information that can be carried out by current status information of a system. First, as we cannot imagine that at any moment any element of a network system can be aware of the whole network state, we see events as a clever mechanism to transpoft useful local status information to portions of the system that need it. Second, in order to trigger a policy action we are not only in need to know about the current status of the system but we often need to know about specific evolution pattems that might have happened before and which might bring valuable information to correct policy decisions.

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