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<p>forward frames only to the ports involved in the communication. Switches normally have numerous ports, facilitating a star topology for devices, and for cascading additional switches. <a href="page.php?w=Network_bridges">Network bridges</a> are analogous to a two-port switch.<br/>
** Bridges and switches operate at the <a href="page.php?w=data_link_layer">data link layer</a> of the <a href="page.php?w=OSI_model">OSI model</a> and bridge traffic between two or more <a href="page.php?w=Network_segment">network segments</a> to form a single local</p><p>
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