Abstract: This paper defined a set of architectural and modeling to send data from stack master equipment to stack slave equipment in regular sequence in a stack system, to achieve graceful restart and non-stop forwarding. A method for batch data synchronization was presented, with the help of message channel detection and sequence number confirmation, it can improve the efficiency and reliability. The running results showed that this architectural and modeling totally satisfied the design requirements of non-stop forwarding.

Key words: real time sync, slave to master, non-stop forwarding, graceful restart, batch sync, real time sync, slave to master, non-stop forwarding, graceful restart