Once the attack begins, websites can try to trace the sudden flood of traffic back to the source computer and filter it out, but even that's a complex process.

一旦攻击开始，网站可以尝试追踪突发洪水般的流量找到源计算机并对此加以过滤，但这是一个复杂的过程。

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“Throughout the day, we tune workloads that we filter out [from the entire mass of query traffic] for attention,” he says.

“通过一整天时间，我们调优了我们 [从全部的海量查询流量中] 筛选出来以便查看的工作负载，” 他说。

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XML gateways, such as the Vordel XML gateway cloud Edition, filter traffic sent up to cloud platforms, as well as apply policies to the access to the cloud services.

XML网关，比如Vordel XML Gateway Cloud Edition，将过滤上传到云平台的数据流，以及将策略应用到云服务的访问。

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For a start, it is not possible to filter Internet traffic automatically for its country of origin.

ECONOMIST: Finance on the Internet

But many organizations do not feel comfortable having a third party filter all their traffic and do not need the data distribution of a CDN.

FORBES: DDoS: coming to a network near you

The panel of cycling advocates suggested filter systems at traffic lights, priority lanes at roundabouts and for greater private sector involvement, for example getting firms to sponsor cycle lanes or highways.

BBC: Transport Committee