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Hierarchical internetworking model
open-in-new
<p>The Hierarchical internetworking model is a three-layer model for <a href="/facts/Network_design/sHShVQFl">network design</a> first proposed by <a href="/facts/Cisco/ocDgQt6T">Cisco</a> in 1998. The hierarchical design model divides <a href="/facts/Enterprise_network/0KfpheJH">enterprise networks</a> into three layers: core, distribution, and access. </p>