What Is a Private Vlan Cisco

A private VLAN partitions the Ethernet broadcast domain of a VLAN into subdomains, allowing you to isolate the ports on the switch from each other. … All VLANs in a private VLAN domain share the same primary VLAN. The secondary VLAN ID differentiates one subdomain from another.

What is a private VLAN used for?

Private VLANs in hosting operation allows segregation between customers with the following benefits: No need for separate IP subnet for each customer. Using Isolated VLAN, there is no limit on the number of customers. No need to change firewall’s interface configuration to extend the number of configured VLANs.

How do I setup a private VLAN?

  1. Set the VLAN ID for the primary VLAN: …
  2. Set the interfaces and port modes: …
  3. Set the primary VLAN to have no local switching: …
  4. Add the trunk interfaces to the primary VLAN: …
  5. For each secondary VLAN, configure access interfaces: …
  6. For each community VLAN, set the primary VLAN:
Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.

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