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IP resilience within an autonomous system: current approaches, challenges, and future directions

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3 Author(s)
Rai, S. ; California Univ., Davis, CA, USA ; Mukherjee, B. ; Deshpande, O.

Network survivability is gaining increasing attention from the Internet research community. The ubiquity of IP services has fueled increasing interest in ensuring their dependability, by making IP networks more disruption-tolerant. After providing a brief overview of how routing is accomplished in the Internet, this article reviews how the protocols react to failures or changes in network state within an autonomous system. The problems associated with current restoration schemes, with respect to newer and more stringent requirements posed by emerging services such as voice over IP, are identified. We present an overview of the schemes proposed to ameliorate fault recovery and critique their contributions. We also outline future research directions for improving IP resilience.

Published in:

Communications Magazine, IEEE  (Volume:43 ,  Issue: 10 )