This paper will be explaining how switches and hubs handle MAC addresses, what additional features

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This paper will be explaining how switches and hubs handle MAC addresses, what additional features are available on switches that are not available on hubs. It will also address how bandwidth can be enhanced through a switch, describes differences in how traffic flow between a switch and a hub. In addition, analyze how switches and hubs play a role in security. According to Hardwood & Bird (2005), hubs connect devices on a twisted-pair network. Hardwood & Bird (2005) stated that a hub does not perform any tasks besides signal regeneration. The function of a hub is to take data from one of the connected devices and forward it to all the other ports on the hub. According to Solomon & Kim (2013), a hub is similar to a repeater. The main…show more content…
Hubs according to Balchunas (2011) provide no intelligent forwarding whatsoever. Hubs are incapable of processing either Layer-2 or Layer-3 information, and thus cannot make decisions based on hardware or logical addressing (Balchunas, 2011, p.3). Thus, hubs will always forward every frame out every port, excluding the port originating the frame. Hubs do not differentiate between frame types, and thus will always forward unicasts, multicasts, and broadcasts out every port but the originating port. According to Hardwood & Bird (2005), switches on the other hand connects devices on a twisted-pair network. A switch forwards data to its destination by using the MAC address embedded in each packet. Like hubs, switches are the connectivity points of an Ethernet network. Hardwood & Bird (2005), stated that devices connect to switches via twisted-pair cabling, one cable for each device. According to Carl (2008) switches are used to connect several terminals without forming a single collision domain. Switches inspects arriving packets’ destination addresses and forwards its only on the right cable. The difference between hubs and switches is in how the devices deal with the data that they receive. Whereas a hub forwards the data it receives to all of the ports on the device, a switch forwards it only to the port that connects to the destination device. It does this by learning the MAC address of the devices attached to it, and then by matching the
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