Exploiting Routing Redundancy via Structured Peer-to-Peer Overlays

Ben Y. Zhao
Ling Huang
Jeremy Stribling
Anthony D. Joseph
John D. Kubiatowicz

11th IEEE International Conference on Network Protocols (ICNP)

[Full Text in GZIP PS Format, 120KB]
[Full Text in PDF Format, 163KB]

Paper Abstract

Structured peer-to-peer overlays provide a natural infrastructure for resilient routing via efficient fault detection and precomputation of backup paths. These overlays can respond to faults in a few hundred milliseconds by rapidly shifting between alternate routes. In this paper, we present two adaptive mechanisms for structured overlays and illustrate their operation in the context of Tapestry, a fault-resilient overlay from Berkeley. We also describe a transparent, protocol-independent traffic redirection mechanism that tunnels legacy application traffic through overlays. Our measurements of a Tapestry prototype show it to be a highly responsive routing service, effective at circumventing a range of failures while incurring reasonable cost in maintenance bandwidth and additional routing latency.