Internal FLOGI Parameters

When an NP port comes up, the NPV device first logs itself in to the NPV core switch and sends a FLOGI request that includes the following parameters:

• The fWWN (fabric port WWN) of the NP port used as the pWWN in the internal login.
• The VSAN-based sWWN (switch WWN) of the NPV device used as nWWN (node WWN) in the internal FLOGI.

After completing its FLOGI request, the NPV device registers itself with the fabric name server using the following additional parameters:

• Switch name and interface name (for example, fc1/4) of the NP port is embedded in the symbolic port name in the name server registration of the NPV device itself.
• The IP address of the NPV device is registered as the IP address in the name server registration of the NPV device.

Note     The BB_SCN of internal FLOGIs on NP ports is always set to zero. The BB_SCN is supported at the F-port of the NPV device.

Table 11-1 identifies the internal FLOGI parameters .

Table 11-1 Internal FLOGI Parameters  

Parameter	Derived From
pWWN	The fWWN of the NP port.
nWWN	The VSAN-based sWWN of the NPV device.
fWWN	The fWWN of the F port on the NPV core switch.
symbolic port name	The switch name and NP port interface string. Note     If there is no switch name available, then the output will display “switch.” For example, switch: fc1/5.
IP address	The IP address of the NPV device.
symbolic node name	The NPV switch name.

Although fWWN-based zoning is supported for NPV devices, it is not recommended because:

• Zoning is not enforced at the NPV device (rather, it is enforced on the NPV core switch).
• Multiple devices behind an NPV device log in via the same F port on the core (they use same fWWN and cannot be separated into different zones).
• The same device might log in using different fWWNs on the core switch (depending on the NPV link it uses) and may need to be zoned using different fWWNs.

---

Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.