Chapter 7 Configuring N Port Virtualization

Information About N Port Virtualization

Figure 7-4shows the internal FLOGI flows between an NPV core switch and an NPV device.

Figure 7-4 Internal FLOGI Flows

NPV Core Switch

fc 5/10

fwwn

fc 1/5

pwwn

nwwn NPV Device

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Table 7-1identifies the internal FLOGI parameters that appear in Figure 7-4.

Table 7-1

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.

Default Port Numbers

Port numbers on NPV-enabled switches will vary depending on the switch model. For details about port numbers for NPV-eligible switches, see the Cisco NX-OS Family Licensing Guide.

 

Cisco MDS 9000 Family NX-OS Interfaces Configuration Guide

7-6

OL-29284-01, Release 6.x

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Cisco Systems DSC9148D8G48PK9 manual Default Port Numbers, Parameter Derived From, Internal Flogi Parameters