Configuring Npv; Enabling Npv - Cisco Nexus 5500 Series NX-OS Configuration Manual

Configuring NPV

• Port tracking is not supported in NPV mode.
• Port security is supported on the core switch for devices logged in through the NPV switch. Port security
• Edge switches can connect to multiple core switches. In other words, different NP ports can be connected
• NPV uses a load-balancing algorithm to automatically assign end devices in a VSAN to one of the NP
• If a server interface goes down and then returns to service, the interface is not guaranteed to be assigned
• The server interface is only operational when its assigned NP uplink is operational.
• Servers can be connected to the switch when in NPV mode.
• When initiators and targets are assigned to the same border port (NP or NP-PO), then Cisco Nexus 5000
• Fibre Channel switching is not performed in the edge switch; all traffic is switched in the core switch.
• NPV supports NPIV-capable servers. This capability is called nested NPIV.
• Connecting two Cisco NPV switches together is not supported.
• Only F, NP, and SD ports are supported in NPV mode.
• For an NPV switch which is configured for trunking on any interface, or for a regular switch where the
Configuring NPV

Enabling NPV

When you enable NPV, the system configuration is erased and the switch reboots.
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is enabled on the core switch on a per-interface basis. To enable port security on the core switch for
devices that log in through an NPV switch, you must adhere to the following requirements:
◦ The internal FLOGI must be in the port security database; in this way, the port on the core switch
will allow communications and links.
◦ All the end device pWWNs must also be in the port security database.
to different core switches.
uplinks (in the same VSAN) upon initial login. If there are multiple NP uplinks in the same VSAN, you
cannot assign an end device to a specific NP uplink.
to the same NP uplink.
Series switches in NPIV mode do not support hairpinning.
f port-channel-trunk command is issued to enable the Trunking F Port Channels feature, follow these
configuration guidelines for reserved VSANs and isolated VSAN:
• If the trunk mode is enabled for any of the interfaces, or if the NP port channel is up, the reserved
VSANs range from 3840 to 4078, which are not available for user configuration.
• The Exchange Virtual Fabric Protocol (EVFP) isolated VSAN is 4079, and it is not available for
user configuration.
Configuring N Port Virtualization
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