Fabric Connect Service Types

The Fabric Connect technology delivers Layer 2 and Layer 3 virtualization. These virtualized Layer 2 and Layer 3 instances are referred to as Virtual Service Networks (VSNs). A Service Identifier (I-SID) is used to uniquely distinguish these service instances network-wide, and a User Network Interface (UNI) is the boundary or demarcation point between the “service layer” of traditional networks, that is VLANs and VRFs, and the Fabric Connect “service layer”, that is Layer 2 & Layer 3 VSNs.

Fabric Connect uses the User-Network-Interface (UNI) to denote the capabilities and attributes of the service interfaces. Fabric connect devices support the following UNI types: