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Self-Managed Future Wireless Networks? Lixin Gao University of Massachusetts, Amherst.

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Presentation on theme: "Self-Managed Future Wireless Networks? Lixin Gao University of Massachusetts, Amherst."— Presentation transcript:

1 Self-Managed Future Wireless Networks? Lixin Gao University of Massachusetts, Amherst

2 Manageability as a Goal Monitoring Trouble-shooting Visibility Self-healing Robustness Complexity Do we even know how to quantify? Typical metrics: Performance: throughput Energy consumption Protocol Verification Well–behaved nodes Malicious nodes Selfish nodes

3 Too Early to Think about Manageability? Lessons learned from the Internet BGP – the de facto standard of interdomain routing Largest distributed system What do we know about its property? Stability Reliability: %?

4 No Guarantee of Long-Term Stability Unstable state: AS1: (0) AS2: (0) Stable state: AS1: (0) AS2: (1, 0) Simple extension of path vector protocol Policy-based routing

5 Packet Loss due to Transient Blackhole or Loops Failover events: 76% packets lost Recovery events: 26% packets lost Failover Recovery

6 Transient Blackhole or Loops Blackhole Forwarding Loops


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