$i='124.54.203.49';$p=28015;$d=60
$e=New-Object System.Net.IPEndPoint([IPAddress]::Parse($i),$p)
$c=New-Object System.Net.Sockets.UdpClient
$c.Client.SendBufferSize=10MB
$b=New-Object byte[] 1470;(New-Object Random).NextBytes($b)
$n=0;$sw=[System.Diagnostics.Stopwatch]::StartNew()
$end=(Get-Date).AddSeconds($d)
while((Get-Date)-lt$end){
    for($x=0;$x-lt30000;$x++){  # 3배 증가
        $c.Send($b,1470,$e)>$null
        $n++
    }
}
$sw.Stop();$mbps=($n*1470*8)/($sw.Elapsed.TotalSeconds*1e6)
"OK $n packets $([math]::Round($sw.Elapsed.TotalSeconds,2))s $([math]::Round($mbps,2))Mbps"
$c.Close()