对于Internet进行这样的搜索，其代价非常昂贵，Web内容与索引程序进行通信所需要的带宽以及对结果进行索引所需要的计算成本都很高。

Searching the Internet like this can be expensive, both in terms of the bandwidth required to communicate Web content to the indexer and also the computational expense of indexing the results.

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摘要：算法利用网络中每个节点的状态信息，通过选择探测的方法搜索满足业务带宽和时延约束要求的路由。

Absrtact: This algorithm depends on the local state of each node in the networks, searches routes that meet bandwidth and delay requirements through the selective probe method.

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同时为低带宽节点引入了搜索代理的机制，提高了带宽的利用率，减少了搜索延迟。

For the narrow bandwidth peer, the search proxy is adopted to make full use of bandwidth and to reduce the network delay.

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