The devices on that segment share the bandwidth with each other. A hub allows multiple devices to be connected to the same network segment. Hubs and Switchesīecause of the great demand placed on local area networks, there has been shift from a shared bandwidth network, with hubs and coaxial cable, to a dedicated bandwidth network, with switches. These paragraphs describe some of the key concepts to know about switches. Switches have become much more complex over the last few years because they have gained in popularity and sophistication. One of the prerequisites to troubleshoot any device is to know the rules under which it operates. If you are new to LAN switching, these sections take you through some of the main concepts related to switches. Use Portfast and other commands to fix end-station startup connectivity problemsĬonfigure and troubleshoot multilayer switching ISL trunking on Catalyst 50 family switchesĬonfigure and troubleshoot EtherChannel switch to switch Troubleshoot Ethernet 10/100Mb half/full duplex auto-negotiation Suggestions to troubleshoot general switch The sections in this chapter describe common LAN switch features and solutions to some of the most common LAN switching problems. Refer to Cisco Technical Tips Conventions for more information on document conventions. There are no specific requirements for this document. This document describes common LAN switch features and how to troubleshoot any LAN switching problems.
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