
Chapter 11. Cisco initial setup 303
Hard zoning
In hard zoning, the zoning is enforced for each frame sent by an Nx_Port as the
frame enters the switch. This prevents any unauthorized access at all times. The
enforcement is done by the switch hardware at wire speed.
11.1.3 VSAN
A virtual storage area network (VSAN) is a unique feature of the Cisco MDS
9000 series that enables dividing the physical Fibre Channel fabric to virtual SAN
fabrics. Each VSAN is a completely separate SAN fabric, with its own set of
domain IDs, fabric services, zones, namespace, and interoperability mode.
Each port in the switch fabric belongs to exactly one of the VSANs ...