Reliable transmission service element RTSE belongs to the ISO application layer protocol, mainly providing a reliable transmission function of batch data, which is primarily: first transforming data into an eight-bit string, then decomposing the data string into multiple fields. Finally, each field is transmitted to the representation layer. An inspection station is built between fields. By representing a layer service, RTSE uses the session layer activity management service to manage the transmission process of the field group. Once the underlying network connection fails, the session type small activity synchronization device provides interrupt and data transfer recovery.
RTSE is mainly used for X.400 information processing service MHS. When the remote operation requires reliable transmission, ROSE can use RTSE to implement this goal. Since it is used in X.400, RTSE is widely used.
Although the transport layer ensures the reliability of the transfer, it is not enough, and the main reasons have the following two points: 1) There is no restore the underlying network fault function in the transfer protocol, resulting in the unable to meet the required service quality QoS requirements. In this case, the bottom layer is lost. 2) Due to historical reasons, MHS is designed to operate on TP0 and does not provide signal errors (including X.25 reset) recovery. In case of X.25 reset or disconnected, TP0 terminates the underlying connection. For more information, please visit the following page: 中文 版: http://www.networkDictionary.com/chinese/protocols/rtse.php English version: http://www.networkDictionary.com/Protocols/rtse.php
