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| Oracle Ethernet Switches ### L2 and L3 Deployment Best Practices

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### L2 and L3 VLAN Best Practices

Follow these best practices when configuring the L2 and L3 topology implementations:

- Start the configuration with all ports and the default VLAN shutdown and disable GVRP and GMRP.

  Tip - Dynamic VLAN learning is not a best practice.

- Configure VLANs manually. You must add at least one port to a VLAN before you can assign a VLAN name.

  Tip - In PVRST, set the port or port-channel in access or trunk mode first, then add the port or port-channel manually to assign a name to the VLAN.

- Configure the priority of the default VLAN and external VLAN to a higher value than the default priority 32768.

  Doing so makes the core switch become root even if the default and external VLANs are configured with the default priority in the core switch. Thus, only required traffic and not all core traffic reaches the `ES1-24p-1` and `ES1-24p-2` switches.

##### Related Information

- L2 and L3 Configuration Task Overview

- L2 and L3 Topology

- Adding VLANs

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