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This paper proposes a new survivable algorithm named sub-path protection based on auxiliary virtual topology (SPAVT) to tolerate the single-link failure in WDM optical networks. According to the protection-switching time constraint, SPAVT constructs the virtual topology. Then, it only needs to run one time of routing algorithm to find the feasible virtual route in virtual topology. Simulation results...
One of the goals of P2P file-sharing system is to provide reliable and convenient sharing mechanism for users, so the resources can be gotten more quickly. However, in traditional DHT network, the problem of mismatching between the P2P overlay network and the physical underlying network has not been taken into consideration, which greatly limits the performance in various search or routing techniques...
We present a thorough investigation of four issues with the destination set in IP-level topology measurement. (1) To evaluate the completeness of the destination set, we measured by brute force and found that a half of edges will be missed by the uniform random selection (URS) method which was adopted by well-known CAIDA' skitter. (2) Two potential reasons for edge missing, the short-term routing...
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