StorageTek StorageNet 4000 - Manual (Page 18)

ZONING Components
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Zone Members
Zone members may be specified using one of the following notations:
• Node World Wide Name
• Port World Wide Name
• Physical Fabric port number
Physical Fabric port numbers are specified as a pair of decimal numbers s,p, where:
• s - is the switch number (domain ID)
• p - is the switch port number
For example, 2,12 specifies port 12 on switch number 2. When a zone member is specified by
a physical Fabric port number, any and all devices connected to that port are in the zone. If this
port is an arbitrated loop, all loop devices are in the zone.
World Wide Names are specified as an eight hex number separated by colons. For example
10:00:00:60:69:00:00:8a. ZONING has no field knowledge within a World Wide Name. The
eight bytes are simply compared with the Node and Port Names presented by a device in a
login frame (FLOGI or PLOGI). When a zone member is specified by Node Name, all ports
on that device are in the zone. When a zone member is specified by Port Name, only that
single device port is in the zone.
The type of zone members used to define a zone may be mixed and matched. For example, a
zone defined with the following members 2,12; 2,14; 10:00:00:60:69:00:00:8a would contain
whatever devices are connected to switch 2, ports 12 and 14, and the device with either Node
Name or Port Name of 10:00:00:60:69:00:00:8a whichever port in the Fabric it is connected
to.
Zone Aliases
Zone aliases simplify repetitive port numbers entries or World Wide Names. A zone alias is a
C-style name for one or more port numbers or World Wide Names. For example, the name
host could be used as an alias for 10:00:00:60:69:00:00:8a.
Zone Configurations
A zone configuration is a set of zones. At any one time, zoning may be disabled or one zone
configuration may be in effect. When a zone configuration is in effect, all zones that are
members of that configuration are in effect. You select which zone configuration is currently in
effect.
The set of zone configurations defined in a Fabric, may not be the same as the configuration
that is currently in effect. It may also not be the same as the configurations saved in the
switch’s flash memory.