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The IEEE 802.1D Spanning Tree Protocol resolves the problems of physical loops in a network by establishing one primary path between any two switches in a network. Any duplicate paths are barred from use and become standby or blocked paths until the original path fails, at which point they can be brought into service.
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The switch meets the requirements of the Spanning Tree Protocol (STP) by performing the following functions:
■Creates a single spanning tree from any arrangement of switching or bridging elements.
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■Compensates automatically for the failure, removal, or addition of any device in an active data path.
■Achieves port changes in short time intervals, which establishes a stable active topology quickly with a minimum of network disturbance.
■Uses a minimum amount of communications bandwidth to accomplish the operation of the Spanning Tree Protocol.
■Reconfigures the active topology in a manner that is transparent to stations transmitting and receiving data packets.
■Manages the topology in a consistent and reproducible manner through the use of Spanning Tree Protocol parameters.
