Nic driver configuration, Configuring nic driver options, Advisory: powershell behavior – Dell Emulex Family of Adapters User Manual

Page 589

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Emulex Drivers for Windows User Manual

P010077-01A Rev. A

3. Configuration

NIC Driver Configuration

589

NIC Driver Configuration

Notes:

TOE is supported and enabled by default.

TOE is not supported on LPe16202 CFAs and OCe14000-series adapters.

Configuring NIC Driver Options

The Windows Server NIC driver supports configurable driver options through the

Advanced Property page in Windows Device Manager. For information on how to

configure the options through the Advanced Property page, see “Modifying Advanced

Properties” on page 607.
For more information on NIC driver options, see “Network Driver Performance

Tuning” on page 652.
You can also set configurable driver options using Microsoft PowerShell on Windows

Server 2012. Refer to the documentation that accompanies the Windows Server 2012

operating system for more information on using PowerShell.
See Table 3-3 on page 592 for a list of NIC driver options.

Advisory: PowerShell Behavior

Issues with Capabilities Reported by Standard PowerShell Commands
(Get-NetAdapter)

Driver parameter default registry values are initially populated from the driver

installation INF file. Thereafter, the registry is written to only if the default settings are

explicitly overridden. PowerShell uses these registry values to report capabilities with

the result that the registry values may not always reflect what is supported in the

current configuration.
The default settings can be modified through the Driver Properties page, standard

PowerShell commands, and utilities like occfg (for more information on occfg, see

“Using OCCFG for Windows NIC Driver Options” on page 613).
Standard PowerShell (Get-NetAdapter*) commands behave in the following manner:

If the feature is currently enabled, the driver reports its current capabilities.

PowerShell reports all of the feature capabilities based on what the driver

indicates. These are guaranteed to be what the NIC supports in the current

configuration.

If the feature is not enabled, the driver does not report any current capabilities.

At that point, PowerShell searches the registry for keys related to the feature

and reports their values. These are either the default values (INF) or the last

configured user values (if overwritten by the user). Default values are only

intended as maximum upper bounds; they are not guaranteed resources

supported in every configuration.

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