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We propose a memory and CPU usage prediction model for application-layer multicast networks. The predicted values are used in the distribution of end-hosts to overlay-hosts. Such a distribution enables us to limit the maximum resource consumption for a given node, leading to an efficient utilization of overlay-hosts and, finally, to an increased overall performance of the system. The model parameters...
The Next-Generation Network (NGN) has Application Network Interfaces (ANIs) by which 3rd party application services are easily created. For session-control ANI (for example, ldquomakeCallSessionldquo of the Parlay-X), Application Server (AS) functions process a call using three SIP methods (REFER method, 3rd Party Call Control (3PCC) method, Media Bridge method). We propose a SIP method escalation...
Internet line speeds are expected to reach 100 Gbps in a few years. To match these line rates, a single router line card needs to forward more than 150 million packets per second. This requires a corresponding amount of longest prefix match operations. Furthermore, the increased use of IPv6 requires core routers to perform the longest prefix match on several hundred thousand prefixes varying in length...
Network streaming data are the network traffic records coming from high-speed network links. They arrive continually and their volumes are huge. The key to analysis of network streaming data is to design a smaller yet well organized data subset to glean the most important information for quickly answering a specific type of query. In this paper, we propose a threshold sampling algorithm for network...
A novel autonomic area reconfiguration mechanism is proposed that complements hierarchical QoSR protocols in wireless access networks. The proposed mechanism revises the border between adjacent areas based on handover rates and on resource consumption in terms of bandwidth and user population. Its objectives are concentrated on reducing the overhead related with frequent inter-area handovers as well...
Carrier networks are gradually adopting a network model that consists of MPLS-capable routers and OXCs interconnected by high bandwidth WDM links for transporting IP and Ethernet traffic. A control plane can be used to deliver dynamic circuit provisioning in the transport layer, as well as bandwidth provisioning and traffic engineering in higher layers. Globalization drives the quest for end-to-end...
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