HP Surestore 6164 Switch - Manual (Page 17)

Using Zoning 17
Broadcast Zone
Only one broadcast zone can exist within a fabric. This zone is named
“broadcast” and is used to specify those nodes that are to receive broadcast
traffic.
This type of zone is hardware enforced; the switch controls data transfer to
a port.
Zone Enforcement
When zoning is disabled, the fabric is in a nonzoning state and devices can
communicate without regard to zone restrictions. When zoning is enabled,
zoning is enforced throughout the fabric and devices can communicate only
within their zones.
A switch can maintain any number of zone configurations; however, only
one zone configuration can be enabled, or enforced, at a time. Because
multiple configurations reside in the switch, you can switch from one
configuration to another as events dictate. For example, you can set up a
pre-specified zone configuration to be enabled at certain times of the day;
or, in the event of a disaster, you can quickly enable a defined configuration
to implement your disaster policy.
Zone configurations can be defined, enabled, or saved.
Defined
This is the complete set of all zone objects that have been defined in the
fabric. When zone objects are defined, the information initially resides on
RAM; this must be saved to ensure that it is saved to Flash memory, and is
not lost during power down or when a new zone configuration is enabled.
Changes replicate to all switches in the fabric whenever the zone
information is changed. However, changes must be saved to Flash memory
to be committed to persistent store (that is, to remain across reboot).