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Implementing Cisco Networking Solutions by Harpreet Singh

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Configuring layer 2 protocols

Let's consider a sample topology, as shown in the following figure, to show a sample configuration for the layer 2 features on the switch. In the sample topology shown in the figure, there are three switches, each having 24 ports. Four ports on each switch are in VLAN 10, and four ports on each switch are in VLAN 20, as defined by the legend in the figure. The remaining ports on each switch are in the default VLAN 1, and we will not use these ports. The switches interconnect with each other and form a STP loop that needs to be broken, and we will run PVST on the switches. Also, we will restrict the interconnect links or trunk links to carry only VLANs 10 and 20. The interconnect between Switch-A and Switch-B ...

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