Configure the root bridge for the switch using the Spanning Tree Protocol

Lab name: Use the Spanning Tree Protocol to configure the root bridge for the switch

Tutorial topology:

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Tutorial steps:

1) configure the first layer-3 switch as the root bridge of vlan1 and the secondary Bridge of vlan2.

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2) configure the second layer-3 switch as the secondary Bridge of vlan1 and the root bridge of vlan2.

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3) Configure vlan2 for two L2 switches respectively.

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4) view the spanning-tree information of the switch (take the first layer-3 switch as an example)

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Summary: configure the first layer-3 switch as the secondary Bridge of the vlan1 root bridge vlan2, and the second switch as the secondary Bridge of vlan1. The purpose is: two three-layer switches are responsible for different VLANs to achieve load balancing. Secondly, when one of the Root bridges fails, the other three-layer switch will change from the secondary bridge to the root bridge, redundancy is achieved