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PowerShell – Get Current Link Speed of a Remote System

Today I found myself troubleshooting an issue in a remote site and needing to find out what the client’s link speed is.  Easy information to get I said, I’ll just RDP to the box and look!  Well, a user was currently logged into the machine so no luck there (unless I really felt like being mean…).  So off to the internet I went to see just were I could pull this information from.  Luckily, the Performance Counters contain a whole lot of data that just so happen to be useful in this particular scenario.

The WMI Class Win32_PerfRawData_Tcpip_NetworkInterface has an abundant amount of information about the different network adapters in a system and their current state.  And even better, PowerShell will let you remotely connect to another machine and grab this data!  So, a simple one-liner later and I have a easy to read table that spits out the network adapter name and current link speed of that adapter!

Here it is (don’t forget to change the Computer Name):

Get-WmiObject -class Win32_PerfRawData_Tcpip_NetworkInterface -ComputerName Localhost | Format-Table Name,@{label="LinkSpeed(MB)";Expression={$_.CurrentBandwidth/1000000 -as [int]}}

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