NetBouncer: Active Device and Link Failure Localization in Data Center Networks


Cheng Tan, NYU; Ze Jin, Cornell University; Chuanxiong Guo, Bytedance; Tianrong Zhang, Microsoft; Haitao Wu, Google; Karl Deng, Dongming Bi, and Dong Xiang, Microsoft


The availability of data center services is jeopardized by various network incidents. One of the biggest challenges for network incident handling is to accurately localize the failures, among millions of servers and tens of thousands of network devices. In this paper, we propose NetBouncer, a failure localization system that leverages the IP-in-IP technique to actively probe paths in a data center network. NetBouncer provides a complete failure localization framework which is capable of detecting both device and link failures. It further introduces an algorithm for high accuracy link failure inference that is resilient to real-world data inconsistency by integrating both our troubleshooting domain knowledge and machine learning techniques. NetBouncer has been deployed in Microsoft Azure’s data centers for three years. And in practice, it produced no false positives and only a few false negatives so far.

NSDI '19 Open Access Sponsored by NetApp

Open Access Media

USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.

Presentation Video