| Description | A unique index value that uniquely identifies a
particular Fabric.
In a Fabric conformant to FC-SW-4, multiple Virtual Fabrics
can operate within one (or more) physical infrastructures,
and this index value is used to uniquely identify a
particular (physical or virtual) Fabric within a physical
infrastructure.
In a Fabric conformant to versions earlier than FC-SW-4,
only a single Fabric could operate within a physical
infrastructure, and thus, the value of this Fabric Index
was defined to always be 1. |