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Which option states the correct purpose of spanning tree protocol (STP)?
Secure IP configurations
Loop protection
Secure DNS tables
Implicit deny
Thank you, Paul Rubens who said: The Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free topology for any bridged Ethernet local area network. STP was invented by Dr. Radia Perlman, distinguished engineer at Sun Microsystems. Dr. Perlman devised a method by which bridges can obtain Layer 2 routing utopia: redundant and loop-free operation. Think of spanning tree as a tree that the bridge keeps in memory for optimized and fault-tolerant data forwarding. Spanning tree in a nutshell â¢STP provides a means to prevent loops by blocking links in an Ethernet network. Blocked links can be brought in to service if active links fail. â¢The root bridge in a spanning tree is the logical center and sees all traffic on a network. â¢Spanning tree recalculations are performed automatically when the network changes but cause a temporary network outage. â¢Newer protocols, such as TRILL, prevent loops while keeping links that would be blocked by STP in service.
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