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 Cisco protected port?
The protected port is a feature on Cisco Catalyst Switches that you can use to prevent interfaces from communicating with each other.
What does Switchport protected do?
Switchport Protected is a command you can apply on a per-interface basis. The way it works, is if two interfaces are marked protected, they are unable to speak to each other. Here is a picture: In the picture above, both hostA and hostB are connected to the same switch, and in the same VLAN.
What is private VLAN in 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 protected port?
The protected ports feature is a safety measure that prevents ports from forwarding traffic to each other, even if they are on the same VLAN. Each port is designated as either protected or unprotected. By default, all ports are unprotected.
What is protected VLAN?
The protected ports feature is a safety measure that prevents ports from forwarding traffic to each other, even if they are on the same VLAN. By default, all ports are unprotected.
How do I create a private VLAN on a Cisco switch?
First, you define the port as a promiscuous port and then you configure the mapping between a secondary VLAN and the primary VLAN.
- Before You Begin. Ensure that the private VLAN feature is enabled.
- switch# configure terminal.
- switch(config-if)# switchport private-vlan mapping {primary-vlan-id} {secondary-vlan-list | add.
What is black hole VLAN?
It is a a vlan that is unused where you put unused ports in or hosts that you dont want to be on the network.
What is port protected?