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Random Early Detection (RED) algorithm, a framework of active queue management (AQM), has been proposed in order to improve the performance of congestion routers due to the increased use of Internet. But, the basic problem of a lag between congestion's occurrence and its remedy remained. To overcome this problem of RED, Explicit Congestion Notification (ECN) proposed by the IETF that allows end-to-end...
Parallel transmission is one of the popular techniques to realize huge bandwidth between two network nodes. However, in parallel transmission, many packet order inversions will be occurred when the delay difference among the routes is large, and TCP throughput will be drastically decreased under such a circumstance. In this paper, a TCP over SCTP (Stream Control Transmission Protocol) parallel transmission...
In order to solve the problems that the process of the evolution is only in one step and the investment in network is so costly when the network in nowadays evolutes to NGN(Next Generation Networking), this paper has get a deep research about the soft switch, media gateway control protocol, access gateway and media server and such kind of technology and then submit a kind of design methodology, through...
IPv6 is the key technology of the next generation Internet, this paper analyses the strategies for managing the transition from IPv4 to IPv6, designs the campus network transition scheme based on IPv6 automatic tunnel technology, and verifies the feasibility that IPv4 network can access IPv6 network through IPv6 automatic tunnel technology by the experiment.
Identifying weak points of network systems and protecting them (before attackers or hackers detect and use our data to attack our systems) are regarded as essential security methods, especially on the LAN system which uses ARP protocol with holes enabling hackers to conduct ARP spoof and sniff packets on the LAN systems. Regarding Web sites with membership systems such as e-commerce Web sites and...
Many today TCP modules are derived from the BSD implementation which handles packet loss as signal of congestion. While in the wireless networks, the non-congestive packet losses can be frequent and shall be handled differently. In this paper we apply the visualized IP-based network simulator (VINS) to study the differences between packet losses due to congestion and that due to link disruption, and...
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