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Upper layer protocol

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This is an old revision of this page, as edited by Kbrose (talk | contribs) at 18:12, 29 October 2008 (ULP not a commonly recognized abbreviation). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

In computer networking, the term upper layer protocol refers to a more abstract protocol when performing encapsulation, in particular it is often used to describe the protocols above the network layer.

It contrasts with lower layer protocol which refers to a more specific protocol.

In the Internet Protocol Suite, IP is the lower layer protocol for UDP and TCP; likewise UDP and TCP are upper layer protocols for IP.

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