(The configuration BPDU includes the following main information to realize spanning tree calculation of root bridge ID (RootID), root path cost (RootPathCost), designated bridge ID (DesignatedBridgeID), designated port ID (DesignatedPortID), and each port of each device is initially generated based on its own The configuration information of the root bridge (RootBridge) is sent to the outside. After the network converges, the root bridge sends configuration BPDUs. This document includes the following attachments:
Spanning Tree Protocol.pdf
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