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See anyone have better understanding of this. I am kind of confused. I need some direction. <br />
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Ok what you have are three bridges with redunant links between all three. &nbsp;At this point you have a network loop. &nbsp;In networking the loops are not a good thing to have. &nbsp;Spanning tree looks at this and knows that it needs to block a path so that the loop will no longer exist. &nbsp;In order to do this it needs to elect a root bridge so that there is a place to start. &nbsp; It takes the MAC IDs of the 3 bridges and creates a root bridge by using the lowest number. &nbsp;ONce the root bridge is elected it is pretty easy to figure out what link will be killed to prevent the loop. &nbsp;It kills the link between Bridge C and Bridge B. &nbsp;It did that because Bridge A was elected at the root bridge and all traffic will be routed through there. 
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See anyone have better understanding of this. I am kind of confused. I need some direction.


Ok what you have are three bridges with redunant links between all three.  At this point you have a network loop.  In networking the loops are not a good thing to have.  Spanning tree looks at this and knows that it needs to block a path so that the loop will no longer exist.  In order to do this it needs to elect a root bridge so that there is a place to start.   It takes the MAC IDs of the 3 bridges and creates a root bridge by using the lowest number.  ONce the root bridge is elected it is pretty easy to figure out what link will be killed to prevent the loop.  It kills the link between Bridge C and Bridge B.  It did that because Bridge A was elected at the root bridge and all traffic will be routed through there.

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See anyone have better understanding of this. I am kind of confused. I need some direction. <br />
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<a href="http://www.cisco.com/warp/public/473/spanning_tree1.swf" rel="ugc">http://www.cisco.com/warp/public/473/spanning_tree1.swf</a><br />

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See anyone have better understanding of this. I am kind of confused. I need some direction. 

http://www.cisco.com/warp/public/473/spanning_tree1.swf


Spanning Tree

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.