PACKET TRANSMISSION SYSTEM, METHOD AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM OF THE SAME

摘要

A packet transmission system is provided that includes packet switching modules each having a memory unit to store packet flow tables and a control module coupled to the packet switching modules. The control module includes a memory to store computer executable commands and a processor. The process executes the commands to perform the operations outlined below. A flow entry corresponding to a target packet switching module is generated. A residual memory amount of the memory unit of the target packet switching module is determined to be lower than a threshold value. A redirection packet switching module is selected from the other packet switching modules. A redirection flow entry is added to the packet flow tables in the target packet switching module and a processing flow entry is added to the packet flow tables in the redirection packet switching module according to the flow entry.

主权项

1. A packet transmission system comprising:
a plurality of packet switching modules each having a memory unit to store a plurality of packet flow tables; and a control module coupled to the packet switching modules to update the plurality of packet flow tables, wherein the control module comprises a memory to store a plurality of computer executable commands and a processor, and the processor executes the commands to perform operations of:
generating a flow entry corresponding to a target packet switching module of the plurality of packet switching modules;determining that a residual memory amount of the memory unit of the target packet switching module is lower than a threshold value;selecting a redirection packet switching module from the other packet switching modules, wherein the residual memory amount of the memory unit of the redirection packet switching module is not lower than the threshold value; andadding a redirection flow entry to the packet flow tables in the target packet switching module and adding a processing flow entry to the packet flow tables in the redirection packet switching module according to the flow entry. wherein when the target packet switching module receives a packet corresponding to the redirection flow entry, the target packet switching module redirects the packet to the redirection packet switching module according to the redirection flow entry such that the redirection packet switching module processes the packet according to the processing flow entry.