Programmable data plane architecture, flow table updating method and switch

• Main Authors: TANG KAIFEI, GUO YIWEI, JIA TIEZHEN, FENG ZHIFENG, LIU ZEYING
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a programmable data plane architecture, a flow table updating method and a switch, and the method comprises the steps: when a received data packet meets a triggering condition, a first matching operation unit generates a packet-in message based on the data packet, and directly transmits the packet-in message to a programmable inverse parser through a direct transmission channel; after being subjected to inverse analysis processing by the programmable inverse analyzer, the data are uploaded to a control plane through an uploading channel; and after a Packet-out message issued by the control plane is received, the first matching operation unit and the second matching operation unit update the flow table item based on the Packet-out message. 本发明提供一种可编程数据平面架构、流表更新方法及交换机，所述方法当接收的数据包满足触发条件时，第一匹配操作单元基于所述数据包生成packet-in消息，并将所述packet-in消息通过直传通道直传至可编程逆解析器，经可编程逆解析器逆解析处理后通过上传通道上传至控制平面；当接收到控制平面下发的Packet-out消息后，第一匹配操作单元和第二匹配操作单元基于Packet-out消息更新流表项。