分组交换的形成--由用户数据和分组头组成。 分组头包含--逻辑信道号，分组的序号和其他控制信息-Formation of packet switching- from the user data and packet header component. Packet header contains- logical channel number, serial number and other sub-control information

实现报文交换，可以目录到队列，队列到队列，队列到目录，目录到目录的数据交换，这种实现方式可以灵活配置。-Implementation of packet switching, can directory to the queue, the queue to a queue, the queue to the directory, directory to the directory data exchange, this implementation can flexible configura

晶晶封包改车，改车，改宝石，装备，入库，(Seamless packet switching)