Distributed method and system for implementing link aggregation control protocol (LACP) standard state machines

摘要

The present invention provides a distributed method for implementing Link Aggregation Control Protocol (LACP) standard state machines, wherein the method includes: after receiving a message, a physical port transmits it to a receive machine; the receive machine, a periodic transmission machine, a multiplexer (MUX) machine, and a transmit machine are triggered to operate in turn; the selection logic on a master controller is triggered to operate, and the processing of the message is completed according to the physical link selection state of the selection logic on the master controller; wherein, the receive machine, periodic transmission machine, MUX machine, and transmit machine operate on the link card at which the physical port is located, and the selection logic operates on the master controller.

主权项

1. A method for implementing Link Aggregation Control Protocol (LACP) standard state machines in a distributed system which is divided as a Management Processor (MP), a Routing Processor (RP) and a Network Processor (NP) according to functions, comprising:
after receiving a message at a physical port on a NP of a plurality of NPs, directly transmitting the message to a receive state machine without delivering to an RP - active on which a selection state machine operates; triggering the receive state machine, a periodic state machine, a multiplexer (MUX) state machine, and a sending state machine to operate in turn, wherein all of the receive state machine, the periodic state machine, the MUX state machine, and the sending state machine operate on the NP, these four state machines operate taking each physical link as a unit and they only need to operate on the NP at which the physical link is located; if there is a change in state machine data of at least one of the four state machines on the NP before and after the state machine operates, then synchronizing the changed state machine data of the state machine to the RP—active on which the selection state machine operates, and then triggering the selection state machine on the RP—active to operate and completing processing of the message according to a physical link selection state of the selection state machine on the RP—active; so as to reduce the number of the message deliveries between the NP and the RP—active since the five state machines are distributed in a way that the receive state machine, the periodic state machine, the MUX state machine and the sending state machine operate on the NP and the selection state machine operates on the RP—active.