- Written by Christian Geddings
- Posted on August 17, 2023
- Updated on August 17, 2023
- 1393 Views
A DMF fabric is made up of groups of switches, known as islands, that are connected over the data plane. There are no data plane connections between switches in different islands. When Push-Per-Filter forwarding is enabled, monitored traffic is forwarded within an island using the VLAN ID associated with a Filter Interface. These VLAN IDs are configurable. Previously, the only recommended configuration was for these VLAN IDs to be globally unique.