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RSTP state machine scheduling method and RSTP state machine scheduling system

A state machine and state technology, applied in the field of communication, can solve problems such as state abnormality, RSTP protocol operation disorder, and long convergence time, so as to avoid state abnormality, shorten convergence time, and reduce operation disorder

Active Publication Date: 2020-08-11
CETC AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] The technical problem to be solved by the present invention is that in the prior art, running the RSTP protocol may have problems such as disordered operation, abnormal state, and too long convergence time. The purpose is to provide a method and system for scheduling an RSTP state machine to solve the above problems

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  • RSTP state machine scheduling method and RSTP state machine scheduling system

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Embodiment

[0076] Such as figure 1 Shown, the method for a kind of RSTP state machine scheduling of the present invention comprises the following steps:

[0077] S1: divide the sub-state machine into three sets according to the sending and receiving function of the sub-state machine in the RSTP state machine and the state that affects the reception of the message: set A, set B and set C;

[0078] Among them, set A is a sub-state machine that will directly affect the received message; set B is a sub-state machine that does not directly affect the received message; set C is a sub-state machine that sends a message;

[0079] S2: Run the sub-state machines in set A;

[0080] S3: After the sub-state machines in set A are finished running, run the sub-state machines in set B;

[0081] S4: After the sub-state machines in the set B are completed, run the sub-state machines in the set C.

[0082] During the implementation of this embodiment, the running order of the sub-state machines is deter...

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Abstract

The invention discloses an RSTP state machine scheduling method. The method comprises the following steps: S1, dividing sub-state machines into a set A, a set B and a set C, wherein the set A is a sub-state machine which can directly generate influence when receiving the message, the set B is a sub-state machine which does not directly influence the received message, and the set C is a sub-state machine for sending a message; S2, operating the sub-state machines in the set A; S3, after the sub-state machines in the set A are operated, operating the sub-state machines in the set B; S4, after the sub-state machines in the set B are operated, operating the sub-state machines in the set C. According to the RSTP state machine scheduling method and system provided by the invention, the state machines of RSTP state machines are divided into three sets, and the operation sequence of the sets is set, so the operation disorder of the RSTP state machines in the operation process can be reduced, the state abnormality is avoided, and the convergence time is shortened.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and system for scheduling an RSTP state machine. Background technique [0002] The RSTP protocol (Rapid Spanning Tree Protocol) is the rapid spanning tree protocol. The rapid spanning tree protocol can quickly remove the loop in the network and avoid the storm in the network. It is widely used in various network scenarios, and the realization of RSTP The core of the protocol is the rapid spanning tree state machine (Rapid Spanning Treestate machines) in the protocol, but the complexity of the rapid spanning tree state machine is relatively high. It is composed of nine sub-state machines. Its main functions and abbreviated names in the following are as follows : [0003] Port Receive state machine [0004] The port receiving state machine, hereinafter abbreviated as prsm, is used for preliminary parsing of the received BPDU message. [0005] Port Protocol Migrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/753H04L12/937
CPCH04L45/48H04L49/253
Inventor 刘凯晋良银
Owner CETC AVIONICS
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