寻求可替代Unix工具Ethtool的Windows以太网自动协商工具及对应命令行实现方案

Hey there! Let's break down how to replicate that Unix ethtool script's functionality on Windows—since Windows doesn't have a direct drop-in replacement for ethtool, we'll use built-in tools to get the job done.

First, the two go-to built-in tools for managing Ethernet interface settings on Windows are:

• netsh: The classic command-line utility that works in both Command Prompt and PowerShell. It's been around forever and handles most basic network config tasks.
• PowerShell Cmdlets: Get-NetAdapter and Set-NetAdapterAdvancedProperty are more modern, granular tools that make it easier to target specific adapters and properties.

Replicating Your Unix Script's Behavior #

Your original script loops through all network interfaces, turns on autonegotiation for each, and prints a confirmation message. Here's how to do this in Windows:

Option 1: Command Prompt (CMD) Script #

CMD doesn't handle interface loops as smoothly as Unix shells, but we can hack together a working script with netsh and a for loop:

@echo off
setlocal enabledelayedexpansion

:: Loop through all Ethernet interfaces (skip non-physical/loopback adapters)
for /f "tokens=2 delims=:" %%i in ('netsh interface show interface ^| findstr /i "ethernet"') do (
    :: Trim leading whitespace from the interface name
    set "iface=%%i"
    set "iface=!iface:~1!"
    echo Turning on autonegotiation for !iface!
    :: Enable link-level autonegotiation (speed/duplex)
    netsh interface set interface "!iface!" autonegotiate=enabled
    :: If you also need to enable IP autoconfiguration (DHCP), add this line:
    :: netsh interface ipv4 set interface "!iface!" autoconfiguration=enabled
)
endlocal

Heads up: The exact property name might vary depending on your network adapter's driver. If autonegotiate=enabled doesn't work, check your adapter's advanced properties in Control Panel to find the correct parameter name, then adjust the netsh command accordingly.

Option 2: PowerShell Script (More Reliable) #

PowerShell is way better at handling network adapters, so this is the recommended approach:

# Grab all physical Ethernet adapters (skips loopback and virtual adapters)
$ethernetAdapters = Get-NetAdapter | Where-Object { $_.PhysicalMediaType -eq "802.3" }

foreach ($adapter in $ethernetAdapters) {
    Write-Host "Enabling autonegotiation on $($adapter.Name)"
    # Turn on link-level autonegotiation (speed/duplex)
    Set-NetAdapterAdvancedProperty -Name $adapter.Name -DisplayName "Auto Negotiation" -DisplayValue "Enabled"
    # If you need to enable DHCP for IP config, uncomment this line:
    # Set-NetIPInterface -InterfaceAlias $adapter.Name -Dhcp Enabled
}

Pro tip: If "Auto Negotiation" isn't the right display name for your adapter, run Get-NetAdapterAdvancedProperty -Name $adapter.Name to list all available properties for your hardware, then use the correct name from that output.

Important Notes #

• Run as Admin: Both scripts need to be executed with Administrator privileges—otherwise, you'll hit access denied errors when trying to modify interface settings.
• Adapter Compatibility: Some older network adapters might not support autonegotiation, or might use a different property name (like "Speed & Duplex" set to "Auto"). Always double-check your adapter's specific settings if the commands don't work.

内容的提问来源于stack exchange，提问作者sanjanaraju_inde