PowerShell :: Test-ForPort function - Tests network port for X retires, or until it answers.

Test-ForPort.ps1

function Test-ForPort {
	param (
		[Parameter(Mandatory)]
		[string]$Server,
		[Parameter(Mandatory)]
		[int]$Port,
		[int]$RetryCount = 3,
		[switch]$Quiet
	)

	$answered = $false

	if (!$Quiet) {
		$infoLevel = "Quiet"
	} else {
		$infoLevel = "Detailed"
	}

	while ((!$answered) -and ($RetryCount -gt 0)) {
		$answered = (Test-NetConnection $Server -port $Port).TcpTestSucceeded
		$RetryCount -= 1
	}

	if ($RetryCount -lt 1) {
		if (!$Quiet) {
			Write-Host 'Timed out.'
		}
		return $false
	}

	if (!$Quiet) {
		Write-Host 'Answered.'
	}
	return $true
}