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	<title>BRAD HEDLUND .com&#187; dscp</title>
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	<description>Studies in Data Center Networking, Virtualization, Computing</description>
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		<title>DSCP Assured Forwarding PHB</title>
		<link>http://bradhedlund.com/2006/03/22/dscp-assured-forwarding-phb/</link>
		<comments>http://bradhedlund.com/2006/03/22/dscp-assured-forwarding-phb/#comments</comments>
		<pubDate>Wed, 22 Mar 2006 06:36:34 +0000</pubDate>
		<dc:creator>Brad Hedlund</dc:creator>
				<category><![CDATA[QoS]]></category>
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		<description><![CDATA[RFC 2597 defines a group of DSCP settings called &#8220;Assured Forwarding&#8221; Per Hop Behavior (PHB) to be recognized by RFC compliant DSCP routers and switches called DS nodes. The Assured Forwarding PHB class is presented as AF(xy), where x=traffic class, and y=drop precedence. 4 traffic classes, and 3 drop precedences are defined. For example, AF21 [...]]]></description>
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