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BGP measurement is important for monitoring and understanding the Internet anomalies. Most of the previous works on BGP measurement rely on aggregated statistics from BGP monitors, e.g., total updates. However, BGP events may have quite limited visibility. Therefore, merely investigating aggregated data may lead to misunderstanding Internet instability, e.g., overestimating the impact of monitor-local...
Measuring the instability of IP prefixes in BGP is critical for network operation and management. In particular, identifying and investigating the most active prefixes assist in detecting, analyzing, and understanding network problems. The traditional metric to assess the activeness of a prefix is the quantity of BGP update. However, this metric may be strongly affected by monitor-local events: the...
The Internet global routing tables have been expanding at a dramatic and increasing rate. In this paper, we propose the next hop of strict partial order to construct and aggregate the Nexthop-Selectable FIB (NSFIB). We control the path stretch caused by NSFIB aggregation by setting an upper limit number of next hops. According to our simulation, our aggregation algorithms shrink the FIB to 5–15%,...
In this study, we bring the haptic technology into the system and realize “play catch” in a 3D virtual environment by PHANToM haptic device in order to represent making statements in turns. In this system, subjects can express their emotions by changing the ball's color and radius, as well as its speed. We conduct four types of observational comparison experiments to verify the effect that the haptic...
This paper analyses completely the general network models and network structure patterns currently and discusses their characteristics and implementation approaches. The paper also summarizes similarities and differences of these network models and their merits and disadvantages. Based on the above research, the paper puts forward the thought of system design for test system based on network .The...
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