The Spanning Tree Protocol, or STP, is a network protocol that prevents switching loops in Ethernet networks by creating a loop-free logical topology from a physical topology that might contain loops. It achieves this by electing a single root bridge for each VLAN and then blocking redundant paths. The election of the root bridge is based on a unique identifier called the Bridge ID. The Bridge ID comprises two parts: the bridge priority and the switch's MAC address. A lower Bridge ID is always preferred in the election process. If the priorities are the same, the switch with the numerically lowest MAC address becomes the root bridge. The term 'immediately' in the context of STP refers to t....
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