Performance Settings - NETGEAR RNDP6620-100NAS - ReadyNAS Pro RNDP6620 Business Edition Software Manual

If you want to use the ReadyNAS in a VLAN environment, select the Enable VLAN support
check box, and enter a numeric VLAN ID. This requires a reboot of the ReadyNAS for the
VLAN function to take effect.
WARNING!
Do not enable VLAN support unless you are sure that your clients
also support VLAN. Otherwise, you can lose network access to
the unit, and you might need to reinstall the firmware to disable
the VLAN setting.

Performance Settings

The Enable jumbo frames option allows you to optimize the ReadyNAS for large data
transfers.
Use this option only if your NICs and your gigabit switch support jumbo frames. The
ReadyNAS supports up to a 9000 byte frame size. For optimal performance, a switch
capable of this frame size or larger should be used.
ReadyNAS for Business RAIDiator 4.2.17
Managing Your ReadyNAS System
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