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Reference.org
Path computation element
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<p>In <a href="/facts/Computer_networks/3w5RM99p">computer networks</a>, a path computation element (PCE) is a system component, application, or <a href="/facts/Network_node/LBp2vNcJ">network node</a> that is capable of determining and finding a suitable route for conveying data between a source and a destination. </p>