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Traffic engineering and an economical provisioning of bandwidth is crucial for network providers in times of high competition in broadband access networks. We investigate the efficiency of caching as an option to shorten end-to-end paths and delays while at the same time reducing traffic loads. The portion of HTTP based distribution of cacheable content on the Internet is increasing in recent time...
According to different priority based services, IEEE 802.16e WiMAX standard classifies packets as UGS, RTPS, eRTPS, nRTPS, BE. The standard treats all packets generated while browsing the internet as delay tolerant packets and classifies them as Best Effort (BE) packets. This includes BE packets generated while browsing secure websites. However, secure transactions are governed by time constraints...
The availability of the Internet at the click of a mouse brings with it a host of new problems. Although the World Wide Web was first started by physicists at CERN to enable collation and exchange of data, today, it is used for a wide range of applications. The requirements on bandwidth for each of the applications is also varied. An Internet Service Provider must ensure satisfaction across the entire...
Web Portal functions as a single point of access to information on the World Wide Web (WWW). The Web portal always contacts portalpsilas gateway for the information flow that causes network traffic over the Internet. Moreover it provides real time/dynamic access to the stored information, but not access to the real time information. This inherit functionality of Web portal limits its role for the...
The demand for Internet content rose dramatically. Servers became more and more powerful and the bandwidth of end user connections and backbones grew constantly. Nevertheless users often experience poor performance when they access Web sites or download files. Reasons for such problems are often performance problems which occur directly on the servers (e.g. poor performance of server-side applications...
Web caching has been recognized as an effective scheme to alleviate the service bottleneck and reduce the network traffic, thereby minimizing the user access latency on the Internet. Increased number of subscribers and massive amount of Web content have caused an augment in the access network load of network service providers (NSP). To address this problem, Web cache system has been developed to enhance...
Service overlay networks (SONs) have recently been proposed to support various value-added services including multicast, resilient routing, QoS support, and DoS resistant communication in the Internet. Access control plays an important role for various SON applications yet most SON proposals do not consider access control or assume that it is a pre-existing service. The lack of a proper access control...
This paper proposes a novel functional classification scheme to understand and analyze web robot traffic. The scheme is rooted in the recognition that the crawling behavior of a robot on a site is primarily governed byits intended purpose or functionality. We apply the classification rules to analyze web server access logs from the University of Connecticut School of Engineering domain. The analysis...
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