Cisco Aci Overlapping Vlan Pool

In computer networking, an overlapping VLAN pool (OVP) is a configuration in which two or more VLANs share the same identifier (ID). This can be useful in situations where traffic from different VLANs needs to be passed through a single device, such as a router or firewall.

In an 802.1ad-stacked OVP, each VLAN is assigned a unique identifier, but the frames are not tagged. Instead, the identifier is used to determine which VLAN the frame should be forwarded to. Devices that need to pass traffic from multiple VLANs will have their ports configured with the appropriate identifiers. When a frame arrives at a port, the device will look up the identifier in a table to determine which VLAN the frame should be forwarded to.

OVPs can be useful in situations where traffic from different VLANs needs to be passed through a single device, such as a router or firewall. By sharing a single device between multiple VLANs, OVPs can help to reduce costs and simplify network architectures.