公开(公告)号：WO2023064113A1

公开(公告)日：2023-04-20

申请号：PCT/US2022/045235

申请日：2022-09-29

Applicant: PENSANDO SYSTEMS INC.

Inventor： KAMISETTY, Sarat ,  BANDARU, Bharat, Kumar ,  DODDAPANENI, Krishna

IPC: H04L49/354 ,  H04L49/25 ,  H04W28/14 ,  H04L47/10 ,  H04L47/36 ,  H04W28/02

Abstract: A network appliance or smart switch can include service devices as well as a switching device such as those used in high-speed switches having limited processing ability and are stateless with respect to sessions. Service devices can provide stateful and complex processing. A first exposed port of a switching device can receive network packets and can determine which network packets the service devices are to process to produce processed network packets. A network packet can be sent to a service device in a redirected packet. A processed network packet can be received from a service device in a reinjected packet that is used to recover a port identifier of the first exposed port. The port identifier can be used to determine a network destination of the processed network packet. The processed network packet can be sent from a second exposed port of the switching device toward the network destination.