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	<title>大概是个博客 &#187; 流量控制</title>
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	<item>
		<title>关于BWM的下载流量控制</title>
		<link>http://dagai.net/archives/13</link>
		<comments>http://dagai.net/archives/13#comments</comments>
		<pubDate>Tue, 30 Oct 2007 08:41:11 +0000</pubDate>
		<dc:creator>Dagai</dc:creator>
				<category><![CDATA[ISA Server]]></category>
		<category><![CDATA[BWM]]></category>
		<category><![CDATA[SoftPerfect Bandwidth Manager]]></category>
		<category><![CDATA[流量控制]]></category>

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		<description><![CDATA[详情请见《SoftPerfect Bandwidth Manager（BWM）使用指南》（http://www.isacn.org/info/info.php?sessid=&#38;infoid=297）
其实很简单，见下图

当内部用户在下载时，数据流如图所示是从外网流向BWM主机再流向内部... ]]></description>
			<content:encoded><![CDATA[<p>详情请见《SoftPerfect Bandwidth Manager（BWM）使用指南》（http://www.isacn.org/info/info.php?sessid=&amp;infoid=297）</p>
<p>其实很简单，见下图<br />
<img SRC="http://dagai.net/wp-content/uploads/2007/10/bwm.jpg" /><br />
当内部用户在下载时，数据流如图所示是从外网流向BWM主机再流向内部用户的，要控制内部用户的流量，当然是离内部用户越近越好，所以要以内网网卡为参照，这时候数据流相对内网卡来说是out，这样就很简单了，源为any，目标为内部用户IP，动作为out</p>
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