public override PacketData GetBytes(IHeader header, PacketData packetData)
 {
     var ospfLlsDataBlockHeader = (OspfLlsDataBlockHeader)header;
     var currentData = new List<byte>();
     currentData.AddRange(new byte[]
                          {
                              0, 0
                          });
     var size = (ushort)(packetData.Data.Count + 4);
     packetData.AddProperty("OspfLlsDataBlockHeaderSize", size);
     currentData.AddRange(GetBytes((ushort)(size / 4)));
     byte[] crc = Checksum.GetCrc(currentData.ToArray());
     currentData[0] = 0xff;
     currentData[1] = 0xf6;
     //foreach (var ospfLlsDataBlockTlv in OspfLlsDataBlockHeader.OspfLlsDataBlockTlv)
     //{
     //    var subData = new List<byte>();
     //    Controller.GetSingletonHandler("OSPFLLSDATABLOCKTLV").GetBytes(ospfLlsDataBlockTlv, subData);
     //    currentData.AddRange(subData);
     //}
     currentData.AddRange(packetData.Data);
     return packetData.UpdateData(currentData);
 }