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摘要: Several applications, such as peer-to-peer (P2P), content distribution and realtime services rely on selection mechanisms in order to select the peer or server from which to request the service. Examples of such services are: file sharing, media streaming and voice gateways.Application-layer selection algorithms do not typically take into account network-layer topology information; either that information is unavailable to them, or when such information is available (eg, from BGP Looking Glass servers), it does not include sufficient information about the local topology in the neighbourhood of the application client (s). Therefore, most applications today make their selection decisions based on performance measurements (combined with some amount of random selection) and largely ignore network layer routing. It has been demonstrated that by keeping the traffic local (eg, within the same Autonomous System) both …