health/Server/Test-SdnEncapOverhead.ps1
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# Copyright (c) Microsoft Corporation. # Licensed under the MIT License. function Test-SdnEncapOverhead { <# .SYNOPSIS Retrieves the VMSwitch across servers in the dataplane to confirm that the network interfaces support EncapOverhead or JumboPackets and that the settings are configured as expected .PARAMETER ComputerName Type the NetBIOS name, an IP address, or a fully qualified domain name of one or more remote computers. .PARAMETER Credential Specifies a user account that has permission to perform this action. The default is the current user. #> [CmdletBinding()] param ( [Parameter(Mandatory = $false)] [System.String[]]$ComputerName = $global:SdnDiagnostics.EnvironmentInfo.Server, [Parameter(Mandatory = $false)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential = [System.Management.Automation.PSCredential]::Empty ) [int]$encapOverheadExpectedValue = 160 [int]$jumboPacketExpectedValue = 1674 # this is default 1514 MTU + 160 encap overhead try { "Validating the network interfaces across the SDN dataplane support Encap Overhead or Jumbo Packets" | Trace-Output if($null -eq $ComputerName){ throw New-Object System.NullReferenceException("Please specify ComputerName parameter or execute Get-SdnInfrastructureInfo to populate environment details") } # if Credential parameter not defined, check to see if global cache is populated if(!$PSBoundParameters.ContainsKey('Credential')){ if($Global:SdnDiagnostics.Credential){ $Credential = $Global:SdnDiagnostics.Credential } } $arrayList = [System.Collections.ArrayList]::new() $status = 'Success' $encapOverheadResults = Invoke-PSRemoteCommand -ComputerName $ComputerName -Credential $Credential -Scriptblock {Get-SdnNetAdapterEncapOverheadConfig} if($null -eq $encapOverheadResults){ throw New-Object System.NullReferenceException("No encap overhead results found") } foreach($object in ($encapOverheadResults | Group-Object -Property PSComputerName)){ foreach($interface in $object.Group){ "[{0}] {1}" -f $object.Name, ($interface | Out-String -Width 4096) | Trace-Output -Level:Verbose if($interface.EncapOverheadEnabled -eq $false -or $interface.EncapOverheadValue -lt $encapOverheadExpectedValue){ "EncapOverhead settings for {0} on {1} are disabled or not configured correctly" -f $interface.NetworkInterface, $object.Name | Trace-Output -Level:Warning if($interface.JumboPacketEnabled -eq $false -or $interface.JumboPacketValue -lt $jumboPacketExpectedValue){ "JumboPacket settings for {0} on {1} are disabled or not configured correctly" -f $interface.NetworkInterface, $object.Name | Trace-Output -Level:Warning $status = 'Failure' $interface | Add-Member -NotePropertyName "ComputerName" -NotePropertyValue $object.Name [void]$arrayList.Add($interface) } } } } return [PSCustomObject]@{ Status = $status Properties = $arrayList } } catch { "{0}`n{1}" -f $_.Exception, $_.ScriptStackTrace | Trace-Output -Level:Error } } |