Reference Guide

Brocade Fabric OS Command Reference 235
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faPwwn
Description
Use this command to create and manage fabric-assigned port world wide names (FA-PPWWNs) for Dynamic
Fabric Provisioning (DFP). A FA-PWWN is a "virtual" port WWN that will bind to a device port and can be later
assigned to a physical device. A FA-PWWN can be either user-generated or automatically assigned by the fabric.
The automatically assigned FA-PWWN is created by default when you enable the feature without explicitly
providing a VPWWN. With FA-PWWNs assigned to FC ports or Access Gateway (AG) ports, you can provision the
ports in advance with zoning configurations, access control, or Ports on Demand assignments, and you can easily
move servers across ports or Access Gateways by way of reassigning the FA-PWWN to another port.
The fapwwn command supports the following management tasks:
• Bind an automatically assigned or a user-assigned FA-PWWN to a switch port.
• Override an automatically assigned FA-PWWN with a user-assigned FA-PWWN.
• Bind an AG port with an automatically assigned or a user-assigned FA-PWWN.
• Delete any existing FA-PWWN bindings.
• Move a FA-PWWN from one port to another port.
• Move a FA-PWWN assigned to an AG port to another AG.
• Display information about configured FA-PWWN bindings.
A single port can be assigned up to two WWNs, one assigned automatically and one assigned by the user. Only
one FA-PWWN can be active at any given time. The user-assigned FA-PWWN takes precedence over the
automatically assigned FA-PWWN. This means, the switch will bind the user-assigned FA-PWWN to the port if
both a user-assigned and an automatically assigned FA-PWWN are available.
FA-PWWN configurations are saved persistently and are preserved even if the feature is disabled on a port, or if
you move the port to a different logical switch. The same configuration will be reapplied on the port once the
feature is enabled or the port is moved back to the switch where you initially created and saved the configuration.
When issued for switch ports, the --show option displays the following information:
Port
Port number
PPWNN
Real PWWN of the device
VPWNN
Currently active FA-PWWN.
The following information is displayed for Access Gateway ports:
AG Port
Access Gateway node WWN followed by a slash and port number
Port
The FC switch port number
Device Port WWN
The real device port WWN displays only if the device is logged into the Access Gateway.
Virtual Port WWN
The FA-PWWN (user-assigned or automatically assigned) created on the FC switch for the
Access Gateway port.