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--- spanning_tree_protocol [2024/01/18 13:13] – [Spanning Tree and Portfast] walkeradmin
+++ spanning_tree_protocol [2024/01/18 13:26] (current) – [Introduction] walkeradmin
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 Spanning Tree Protocol essentially stops packet loops (where the same packet transports around your switches constantly) which causes broadcast storms and thus grinds the network to a complete halt.
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+<color #ed1c24>Spanning Tree</color> is a <color #ed1c24>Layer 2</color> Protocol.
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 For what we do with our systems, there are generally two data switches between devices, with a link between them (per VLAN) which looks like this diagram below:
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-{{ :stp_004.png?900 |}}
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-In this example, we can see just a single link from Switch A to Switch B.
+{{ :stp_004.png?700 |}}
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+In this example, we can see just a single link from Switch A to Switch B. This means that there cannot be any Loops, so STP would not be required here (although it is worth remember that STP in some form runs on a Cisco be default).
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+Remember this Statement regarding STP - //**When a switch receives a broadcast message, that switch will forward that message out of every interface on that switch, except the one it was received on.
+**//
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+Having STP running is not going to cause any issues, and in fact as a safety measure is still quite good (who knows who might bridge the switches with a second cable).
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