Inheritance: DynamicVCPDU
        /// <summary>
        /// Process DVC Data
        /// </summary>
        /// <param name="pdu"></param>
        private void ProcessDataPdu(DataDvcBasePdu pdu)
        {
            if (pdu is DataFirstDvcPdu)
            {
                dataFragmentManager = new DataFragmentManager();
                DataFirstDvcPdu first = (DataFirstDvcPdu)pdu;
                dataFragmentManager.AddFirstData(first.Length, first.Data);
            }
            else if (pdu is DataDvcPdu)
            {
                if (dataFragmentManager == null)
                {
                    // Single data PDU which is not fragmented.
                    if (this.Received != null)
                    {
                        this.Received(pdu.Data, this.ChannelId);
                    }
                    return;
                }
                else
                {
                    // Received a fragment.
                    dataFragmentManager.AppendData(pdu.Data);
                }
            }

            if (dataFragmentManager.Completed)
            {
                if (this.Received != null)
                {
                    this.Received(dataFragmentManager.Data, this.ChannelId);
                }
                dataFragmentManager = null;
            }
        }
 /// <summary>
 /// Process DVC packet, only process Data on this channel
 /// </summary>
 /// <param name="pdu"></param>
 public void ProcessPacket(DataDvcBasePdu pdu)
 {
     if (pdu.ChannelId == this.channelId)
     {
         ProcessDataPdu(pdu as DataDvcBasePdu);
     }
 }