HP Cisco MDS 9120 Cisco MDS 9000 Family Fabric Manager Configuration Guide - R - Page 446

About NPV Chapter 21 Configuring N Port Virtualization Send documentation comments to [email protected] 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. Figure 21-3 shows the internal FLOGI flows between an NPV core switch and an NPV device. Figure 21-3 Internal FLOGI Flows NPV Core Switch fc 5/10 fwwn fc 1/5 pwwn nwwn NPV Device 184572 Table 21-1 identifies the internal FLOGI parameters that appear in Figure 21-3. Table 21-1 Internal FLOGI Parameters Parameter pWWN nWWN fWWN symbolic port name IP address symbolic node name Derived From The fWWN of the NP port. The VSAN-based sWWN of the NPV device. The fWWN of the F port on the NPV core switch. 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. The IP address of the NPV device. 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. 21-4 Cisco MDS 9000 Family Fabric Manager Configuration Guide OL-17256-03, Cisco MDS NX-OS Release 4.x