Correctness of Sampling Bias on Internet Router-Level Topology

Based on the data samples authorized by CAIDA, we analyze the Internet router-level topology. By extracting several features of network property, we found obvious disparity distinction between the comparing results measured by single monitor point and multiple monitor points respectively, which approves that the sampling bias caused by single monitor point take primary effect on the Internet topology. The comparison of specific nodes´ degree and its distribution after complement has been performed, and the link distribution between cores give the fitting formula to correct the sampling bias.