Y. Richard Yang

P4P: Provider Portal for Applications

By: 
Haiyong Xie, Y. Richard Yang, Arvind Krishnamurthy, Yanbin Grace Liu, and Abraham Silberschatz
Appears in: 
CCR October 2008

As peer-to-peer (P2P) emerges as a major paradigm for scalable network application design, it also exposes significant new challenges in achieving efficient and fair utilization of Internet network resources. Being largely network-oblivious, many P2P applications may lead to inefficient network resource usage and/or low application performance. In this paper, we propose a simple architecture called P4P to allow for more effective cooperative traffic control between applications and network providers.

Shadow Configuration as a Network Management Primitive

By: 
Richard Alimi, Ye Wang, and Y. Richard Yang
Appears in: 
CCR October 2008

Configurations for today’s IP networks are becoming increasingly complex. As a result, configuration management is becoming a major cost factor for network providers and configuration errors are becoming a major cause of network disruptions. In this paper, we present and evaluate the novel idea of shadow configurations. Shadow configurations allow configuration evaluation before deployment and thus can reduce potential network disruptions. We demonstrate using real implementation that shadow configurations can be implemented with low overhead.

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