How do I create a private VLAN on a Cisco switch?

How do I create a private VLAN on a Cisco switch?

To create a private VLAN, you first create a VLAN, and then configure that VLAN to be a private VLAN.

1. Before You Begin.
2. switch# configure terminal.
3. 4. (
4. Command or Action.
5. Places you into the VLAN configuration submode.
6. Configures the VLAN as either a community, isolated, or primary.
7. (Optional)

What are the private VLAN types?

There are three types of VLAN within a private VLAN:

• Primary VLAN – it forwards the traffic from the promiscuous ports to isolated ports, community ports and other promiscuous ports in the same private VLAN.
• Community VLAN – is a secondary VLAN.
• Isolated VLAN – is a secondary VLAN.

What is Switchport mode private VLAN?

switch(config-if)# switchport mode. private-vlan promiscuous. Configures the port as a promiscuous port for a private VLAN. You can only enable a physical Ethernet port as the promiscuous port.

What is primary VLAN in private VLAN?

Primary and Secondary VLANs in Private VLANs. A private VLAN domain has only one primary VLAN. Each port in a private VLAN domain is a member of the primary VLAN; the primary VLAN is the entire private VLAN domain. Secondary VLANs provide isolation between ports within the same private VLAN domain.

How do I setup a private VLAN?

Step-by-Step Procedure

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:

What is the difference between VLAN and private VLAN?

The main purpose of Private VLAN (PVLAN) is to provide the ability to isolate hosts at Layer 2 instead of Layer 3. By using PVLAN we are splitting that domain into some smaller broadcast domains. In other words we may summarize Private VLAN as ” VLANs in VLAN “.

When would you use a private VLAN?

Private VLANs are used for network segregation when: Moving from a flat network to a segregated network without changing the IP addressing of the hosts. A firewall can replace a router, and then hosts can be slowly moved to their secondary VLAN assignment without changing their IP addresses.

How does a private VLAN work?

Private VLAN, also known as port isolation, is a technique in computer networking where a VLAN contains switch ports that are restricted such that they can only communicate with a given uplink. The restricted ports are called private ports. Each private VLAN typically contains many private ports, and a single uplink.

What is private VLAN edge?

As discussed in the “Protected Ports (PVLAN Edge”) section, the PVLAN feature prevents interhost communications providing port-based security among adjacent ports within a VLAN across one or more switches.