Network

Msndis class

The MSNdis class from the root\wmi namespace calls the MSNdis_CoHardwareStatus and MSNdis_CoDriverVersion classes. On my Windows 7 system it tries to call something else but I get a “Get-WmiObject : Not supported” error. Neither of these classes seems to have much in the way of documentation...

Network Adapter details

In this post -

Testing the network speed

In the last post I showed how to use the MSNdis_LinkSpeed class. Digging into the class information I found a suggestion that the speed returned was in Kbps. The answers didn’t look right especially when they suggested my wireless network was running at 540Mbps!

At bit of...

Network Link Speed

The root\wmi Namespace contains a class that just returns the link speed of your network card. Quick and easy to use function.

function get-linkspeed{            
			

Ping a subnet

I recently needed to find which IP addresses were active on a subnet to track down a printer. Quickest way was to ping them.

function ping-subnet {           ...
			

Ethernet Errors

While we are looking at the MSNdis_Ethernet* classes we should consider these three that pick up potential problems

MSNdis_EthernetReceiveErrorAlignment
MSNdis_EthernetOneTransmitCollision
MSNdis_EthernetMoreTransmitCollisions

If all is well we...

Testing MAC address changes

My recent post on using MSNdis_EthernetCurrentAddress to get the MAC address may have had you saying so what because I can do this

Get-WmiObject -Class Win32_NetworkAdapter -ComputerName "." | select Name, MACAddress

However, there is...

Find the MAC address

One thing that has bugged me for years is having to use the /all parameter with ipconfig to get the MAC address. It also doesn’t work on remote machines. bah humbug.

The MSNdis_EthernetCurrentAddress class in the root\wmi namespace offers a quicker way

				
				
				
				 

				

				   

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				August 1, 2011  6:44 AM


				
Network client
				


				Posted by: Richard Siddaway
				

				 
				Network
Need to test the network client?
  
PS (6) > Get-WmiObject -Class Win32_NetworkClient
  
   
__GENUS          : 2     
__CLASS          : Win32_NetworkClient ...
			


			
				
				
				
				 

				

				   

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				July 29, 2011  3:08 PM


				
Network Adapter speed and duplex
				


				Posted by: Richard Siddaway
				

				 
				Network, PowerShell v2, WMI
One thing that can cause problems on the network is the duplex setting on the network adapter.  If this doesn’t match the switch port then at best you will get performance issues and at worst no connectivity.
  
The speed of the connection can be obtained from Win32_NetworkAdapter...
			

			
				
				
				
				 

				

				   

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