public function getBiggestPartner($Key)
    {
        if (!isset($this->Data[$Key]["Connections"])) {
            return "";
        }

        $MaxWeight = 0;
        $Result = "";
        foreach ($this->Data[$Key]["Connections"] as $Key => $PeerID) {
            if ($this->Data[$PeerID]["Weight"] > $MaxWeight) {
                $MaxWeight = $this->Data[$PeerID]["Weight"];
                $Result = $PeerID;
            }
        }
        return $Result;
    }