Using Port Numbers - HP AA-RTDRB-TE User Manual

In EWS the WWN displays with the switch or director manufacturer's name
before the WWN. The WWN is assigned to the Fibre Channel interface or HBA
installed in devices such as servers or storage devices. Although the device may
also have a node WWN, this WWN is not used for zoning identification.
Note:
This functionality is not available in EWS.
The advantage of identifying a zone member as the WWN of the attached device
is that the identification will not change if fiber cable connections to ports are
rearranged. This is especially important if you are using spare ports. You can
simply move the fiber cable to a spare port from a failed port and still maintain the
zoning configuration.
The disadvantage of identifying a zone member by the WWN is that removal and
replacement of a device HBA or Fibre Channel interface (thereby changing the
device WWN) disrupts zone operation and may incorrectly include or exclude a
device from a zone.

Using Port Numbers

To identify a zone member by port number, use the domain identification number
of the managed product and the port number on that managed product. For
example:
Note:
the switch or director is set to Open Fabric 1.0 mode.
Port numbers can be 0 through n, with n representing the number of ports on the
managed product minus one. When you define a zone member by a port number,
any device attached through that port is included in the zone. A port number that
you assign as a zone member is automatically prefixed with the domain
identification number of the managed product.
The advantage of identifying a zone member by port number is that if the HBA on
an attached device fails, you don't have to identify the member with the WWN of
the replacement HBA.
Embedded Web Server User Guide
Nicknames can be assigned to the WWN using the HAFM Product Manager.
Domain 1, Port 1
Port numbers cannot be used for zone members if the interoperability mode for
Configuring Zones
61