HP Cisco MDS 9120 Cisco MDS 9000 Family CLI Configuration Guide, Release 3.x ( - Page 373

Chapter 13 Configuring N Port Virtualization About NPV Send documentation comments to [email protected] Figure 13-3 Internal FLOGI Flows NPV Core Switch fc 5/10 fwwn fc 1/5 pwwn nwwn NPV Device 184572 Table 13-1 identifies the internal FLOGI parameters that appear in Figure 13-3. Table 13-1 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 simply read "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 (hence, 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 Chapter 4, "On-Demand Port Activation Licensing." NPV Traffic Management Before Cisco MDS SAN-OS release 3.3(1a), NPV supported automatic selection of external links. When a server interface is brought up, an external interface with the minimum load is selected from the available links. There is no manual selection on the server interfaces using the external links. Also, when OL-16184-01, Cisco MDS SAN-OS Release 3.x Cisco MDS 9000 Family CLI Configuration Guide 13-5