Functions/Test-ConnectionAsync.ps1
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function Test-ConnectionAsync { <# .SYNOPSIS Performs a ping test asynchronously .DESCRIPTION Performs a ping test asynchronously .PARAMETER ComputerName List of computers to test connection. Aliased to 'CN', 'Server' .PARAMETER Timeout Timeout in milliseconds. Default 2000 ms. .PARAMETER TimeToLive Sets a time to live on ping request. Default 128. .PARAMETER Fragment Switch that determine if request can be fragmented .PARAMETER BufferSize How large you want the buffer to be. Valid range 32-1500, default of 32. .PARAMETER IncludeSource A switch determining if you want the source computer name to appear in the output .NOTES Inspired by Test-ConnectionAsync by 'Boe Prox' https://gallery.technet.microsoft.com/scriptcenter/Asynchronous-Network-Ping-abdf01aa * fixed logic around processing pipeline * removed $Buffer parameter * added $BufferSize parameter and dynamically create $Buffer from $BufferSize * added $IncludeSource so that source computer would be included in output .OUTPUTS Net.AsyncPingResult .EXAMPLE Test-ConnectionAsync -ComputerName server1,server2 ComputerName IPAddress BufferSize Result ResponseTime ------------ --------- ---------- ------ ------------ server1 192.168.1.31 32 Success 86 server2 192.168.1.41 32 Success 79 Description ----------- Performs asynchronous ping test against listed systems. #> #Requires -Version 3.0 [OutputType('Net.AsyncPingResult')] [CmdletBinding(ConfirmImpact = 'None')] Param ( [parameter(ValueFromPipeline, Position = 0)] [string[]] $ComputerName, [parameter()] [int] $Timeout = 2000, [parameter()] [Alias('Ttl')] [int] $TimeToLive = 128, [parameter()] [switch] $Fragment, [parameter()] [validaterange(32, 1500)] [int] $BufferSize = 32, [parameter()] [switch] $IncludeSource ) begin { Write-Verbose -Message "Starting [$($MyInvocation.Mycommand)]" if ($IncludeSource) { $Source = $env:COMPUTERNAME } $Buffer = New-Object -TypeName System.Collections.ArrayList 1..$BufferSize | ForEach-Object { $null = $Buffer.Add(([byte] [char] 'A')) } $PingOptions = New-Object -TypeName System.Net.NetworkInformation.PingOptions $PingOptions.Ttl = $TimeToLive If (-not $PSBoundParameters.ContainsKey('Fragment')) { $Fragment = $False } $PingOptions.DontFragment = $Fragment $Computerlist = New-Object -TypeName System.Collections.ArrayList } process { foreach ($Computer in $ComputerName) { [void] $Computerlist.Add($Computer) } } end { $Task = foreach ($Computer in $ComputerList) { [pscustomobject] @{ ComputerName = $Computer Task = (New-Object -TypeName System.Net.NetworkInformation.Ping).SendPingAsync($Computer, $Timeout, $Buffer, $PingOptions) } } try { [void][Threading.Tasks.Task]::WaitAll($Task.Task) } catch { Write-Error -Message "Error checking [$Computer]" } $Task | ForEach-Object { if ($_.Task.IsFaulted) { $Result = $_.Task.Exception.InnerException.InnerException.Message $IPAddress = $Null $ResponseTime = $Null } else { $Result = $_.Task.Result.Status $IPAddress = $_.task.Result.Address.ToString() $ResponseTime = $_.task.Result.RoundtripTime } if ($IncludeSource) { $Object = [pscustomobject] @{ Source = $Source ComputerName = $_.ComputerName IPAddress = $IPAddress BufferSize = $BufferSize Result = $Result ResponseTime = $ResponseTime } } else { $Object = [pscustomobject] @{ ComputerName = $_.ComputerName IPAddress = $IPAddress BufferSize = $BufferSize Result = $Result ResponseTime = $ResponseTime } } $Object.pstypenames.insert(0, 'Net.AsyncPingResult') $Object } Write-Verbose -Message "Ending [$($MyInvocation.Mycommand)]" } } |