In order to create VLANs, you must decide how to configure these items: This function is useful to reduce the size of broadcast domains or to allow groups or users to be logically grouped without the need to be physically located in the same place. VLANs are a mechanism to allow network administrators to create logical broadcast domains that can span across a single switch or multiple switches, regardless of physical proximity. Prerequisites RequirementsĬisco recommends that you have knowledge of the information in this section. The sample commands for each section use one Catalyst switch from each configuration section. This document provides basic information on how to create VLANs on Catalyst switches that run Catalyst OS (CatOS) and Cisco IOS® System Software.
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