Research Of OSPF Behavior Under Routing Simulator

Router is the spirit of Internet, the correct operation of a specific router counts on the stability of built-in routing protocol. Reliable performance hinges on routing stability, yet the behavior of large operational OSPF networks is not well understood[40][47][48][49]. Much work has been done by researchers in our country, but most of them were concerned about internal protocol operation test, not related with protocol behaviors in large enterprise network. At the same time, the research concerning routing protocol behavior in enterprise network in the rest of the world. As the expanding of the internet, the design and deploy of large scale routing networks requires a deep understanding of all the effects which may arise when some local incidents come into being. More and more complicated layered networks need high efficient and jarless routing protocols as the background mechanism at both developing and application levels. According to this requirement, we developed such a flexible infrastructure to support our research on dynamic and distributed characteristics, especially the traffic of LSAs. Popular network infrastructure which was deployed everywhere has been set up as our test bed. We investigate finer time scale statistical properties of this traffic, including burstiness, periodicity, and synchronization. Utilizing the data gathered by our simulator, we compared the results with our prediction, after that, we investigated the root cause of a specific networking traffic pattern, under various network configuration and policies. The importance of our work is not only analyzing the cause of each traffic pattern, but also providing a beneficial formal method for future research.