TY - GEN
T1 - Sharing end-user negative symptoms for improving overlay network dependability
AU - Tang, Yongning
AU - Al-Shaer, Ehab
PY - 2009
Y1 - 2009
N2 - The dependability of overlay services rely on the overlay network's capabilities to effectively diagnose and recover faults (e.g., link failures, overlay node outages). However, overlay applications bring to overlay fault diagnosis new challenges, which include large-scale deployment, inaccessible underlying network information, dynamic symptomfault causality relationship, and multi-layer complexity. In this paper, we develop an evidential overlay fault diagnosis framework (called DigOver) to tackle these challenges. Firstly, the DigOver identifies a set of potential faulty components based on shared end-user observed negative symptoms. Then, each potential faulty component is evaluated to quantify its fault likelihood and the corresponding evaluation uncertainty. Finally, the DigOver dynamically constructs a plausible fault graph to locate the root causes of end-user observed negative symptoms.
AB - The dependability of overlay services rely on the overlay network's capabilities to effectively diagnose and recover faults (e.g., link failures, overlay node outages). However, overlay applications bring to overlay fault diagnosis new challenges, which include large-scale deployment, inaccessible underlying network information, dynamic symptomfault causality relationship, and multi-layer complexity. In this paper, we develop an evidential overlay fault diagnosis framework (called DigOver) to tackle these challenges. Firstly, the DigOver identifies a set of potential faulty components based on shared end-user observed negative symptoms. Then, each potential faulty component is evaluated to quantify its fault likelihood and the corresponding evaluation uncertainty. Finally, the DigOver dynamically constructs a plausible fault graph to locate the root causes of end-user observed negative symptoms.
UR - http://www.scopus.com/inward/record.url?scp=70450032462&partnerID=8YFLogxK
U2 - 10.1109/DSN.2009.5270328
DO - 10.1109/DSN.2009.5270328
M3 - Conference contribution
AN - SCOPUS:70450032462
SN - 9781424444212
T3 - Proceedings of the International Conference on Dependable Systems and Networks
SP - 275
EP - 284
BT - Proceedings of the 2009 IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2009
T2 - 2009 IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2009
Y2 - 29 June 2009 through 2 July 2009
ER -