Cisco CCNA Certification Tutorial: Segmenting Your Network

When you get started on your CCNA study on the way to obtain this certification, you are swamped with network device type that you are already familiar, but not quite sure how to use. Let& 39;s look at these network devices and their main purposes.
Hubs and transponders are working on Layer One " Open Society Institute & quot; models, and they have one main goal - the restoration of electrical signal that a transport layer technologies. This helps avoid the resurgence of attenuation, the gradual weakening of the signal. Much as radio signals, electrical signals that travel in a single layer gradually weaken as they travel across wire. Hubs and repeaters " how to create clean & quot; copies signal.
While nodes and repeaters can be useful, they do nothing as far as network segmentation is concerned. The first such device that we face as we move activities " Open Society Institute & quot; model changeover. Operating at Layer 2, switch creates a clash of multiple domains by default each switch port is considered its own domain little collision. If the 12 computers connected to Cisco switch, you have 12 separate clashes domains.
Switches can be used for crushing into smaller networks broadcasting domain, but this is not the default behavior. Virtual network (VLAN) segments of the network configuration into smaller broadcast domains, because broadcast is sent by staying in one VLAN heard only other devices in VLAN.
Routers same work at Layer 3 of the Open Society Institute " & quot; and models on the network segment Several broadcast domains by default. Routers do not expect the broadcast as switches do, which makes a router device only four we discussed today that create multiple domains broadcasts default.
Knowing that each of these devices can and can not do, it is necessary for passing the CCNA and becomes great network administrator. Good luck to you in both of those goals!
Chris Bryant, CCIE 12933, is the owner of the Bryant Advantage (http://www.thebryantadvantage.com), home of free CCNA and CCNP tutorials, The Ultimate CCNA Study Tara, and ultimately CCNP Study packages. For a free copy of his latest e-books, " How pass CCNA " and " How pass CCNP ", visit the web site and download free copies. You can also get FREE CCNA and CCNP exam questions every day! Get certification CCNA newspaper Bryant Advantage!



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