Switch controller controlled by a link layer protocol and control method thereof

摘要

A switch controller controlled by a Link layer protocol is provided. The controller does not occupy any IP address, and is capable of parsing control frames based on the Link layer protocol. The controller comprises: a reception unit for receiving a packet; a parsing unit for parsing a control frame in the packet and for generating a control signal based on the control frame; a packet buffer for storing the packet; a protocol-processing unit for modifying the control frame based on the control signal; and a transmission unit for transmitting the packet after being processed by the protocol-processing unit.