A passive approach to measure one-way delay of Internet TCP packets
Weng Zi-fa · Computer engineering & Software · 2015
NAT will modify the IP protocol and TCP protocol header, and thus it is difficult to effectively check the indentity of the sending packets and receiving packets in a passive way to measure one-way-delay. In this paper, IP protocol and TCP protocol headers of captrued packets which was modified by NAT is modified again, then the entire packet is hashed. The hashed value becomes the id to determine the indentity between sending packets and receiving packets. The algrighm to caculate one-way delay is also improved to support large-scale data by adding technology similar to sliding window. According to this approach, a software is designed and incompleted to measure the one-way delay of the actual network.