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I am trying to use this powershell command to connect to my switch to back up the configuration. &quot;Save-NetworkSwitchConfiguration&quot; &nbsp;I have an avaya 4548 pwr switch. 
I am supposed to create a cimsession first but I get an error. &nbsp; any Ideas how I can get this to work. 
PS H:\&gt; new-cimsession -computername 192.28.192.254 
 
I get this error message 
 
new-cimsession : The WinRM client cannot process the request. Default authentication may be used with an IP address under the following conditions: the transport is HTTPS or the destination 
the TrustedHosts list, and explicit credentials are provided. Use winrm.cmd to configure TrustedHosts. Note that computers in the TrustedHosts list might not be authenticated. For more info 
on how to set TrustedHosts run the following command: winrm help config. 
At line:1 char:1 
+ new-cimsession -computername 192.28.192.254 
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
&nbsp; &nbsp; + CategoryInfo &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: ConnectionError: (:) [New-CimSession], CimException 
&nbsp; &nbsp; + FullyQualifiedErrorId : HRESULT 0x803381bb,Microsoft.Management.Infrastructure.CimCmdlets.NewCimSessionCommand 
&nbsp; &nbsp; + PSComputerName &nbsp; &nbsp; &nbsp; &nbsp;: 192.28.192.254
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I am trying to use this powershell command to connect to my switch to back up the configuration. "Save-NetworkSwitchConfiguration"  I have an avaya 4548 pwr switch. 
I am supposed to create a cimsession first but I get an error.   any Ideas how I can get this to work.
PS H:\> new-cimsession -computername 192.28.192.254

I get this error message

new-cimsession : The WinRM client cannot process the request. Default authentication may be used with an IP address under the following conditions: the transport is HTTPS or the destination
the TrustedHosts list, and explicit credentials are provided. Use winrm.cmd to configure TrustedHosts. Note that computers in the TrustedHosts list might not be authenticated. For more info
on how to set TrustedHosts run the following command: winrm help config.
At line:1 char:1
+ new-cimsession -computername 192.28.192.254
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ConnectionError: (:) [New-CimSession], CimException
    + FullyQualifiedErrorId : HRESULT 0x803381bb,Microsoft.Management.Infrastructure.CimCmdlets.NewCimSessionCommand
    + PSComputerName        : 192.28.192.254

Save-NetworkSwitchConfiguration powershell

Windows PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language built on the .NET Framework. PowerShell provides full access to the Component Object Model (COM) and Windows Management Instrumentation (WMI), enabling administrators to perform administrative tasks on both local and remote Windows systems as well as WS-Management and Common Information Model (CIM) enabling management of remote Linux systems and network devices.