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Method for solving single-port loop of RSTP protocol

A single-port, loop technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems affecting the use of network broadband, and achieve the effect of maintaining compatibility

Active Publication Date: 2020-07-28
CETC AVIONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problem that the simple network equipment in the airborne ring network forms a network loop and generates a large number of network storm messages, thereby affecting the broadband use of the entire network, the present invention proposes a method for solving the RSTP protocol single-port loop , while ensuring that the method provided by the invention is fully compatible and interoperable with the standard RSTP

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  • Method for solving single-port loop of RSTP protocol
  • Method for solving single-port loop of RSTP protocol

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Embodiment 1

[0027] This embodiment proposes a method for solving the single-port loop of the RSTP protocol.

[0028] The principle of the method of this embodiment is: when the standard RSTP protocol is running, after receiving the BPDU message, the priority in the message will be compared with the priority of the port in the PortInformation state machine, and processed according to the result of the comparison , when appearing as figure 1 When the port is in a loop, the BPDU sent by the port and the BPDU sent by other devices will be received due to the loop, but these BPDUs will not change the role status of the port, so that the network will be affected Influenced by the network storm, the following steps will adopt different processing methods for receiving BPDU messages sent by the port according to the different port roles, so as to solve the loop under the port.

[0029] Specifically, such as figure 2 As shown, the method of the present embodiment includes the following steps: ...

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Abstract

The invention discloses a method for solving a single-port loop of an RSTP protocol, and the method comprises the steps: S1, enabling a standard RSTP protocol to operate, and receiving a BPDU message;S2, enabling the port to detect whether the received BPDU message is a BPDU message sent by the port or not, if yes, executing the S3, and if not, entering standard processing logic of the RSTP; andS3, adopting different processing modes for the received BPDU messages sent by the port according to different port roles so as to solve the problem of the single-port loop. According to the invention, the problem of a network loop after the equipment which cannot operate the RSTP is accessed to a certain port of the equipment which operates the RSTP after ring networking can be solved.

Description

technical field [0001] The invention relates to the technical field of airborne network security, in particular to a method for solving the RSTP protocol single-port loop. Background technique [0002] There can be as many as hundreds of airborne devices on an aircraft, and they communicate with each other through Ethernet. In the airborne environment, it is necessary to reduce the amount of cables used as much as possible, reduce the flight weight, and at the same time require the network to have redundant link protection. Therefore, the way of using ring networking is widely used in airborne networking. However, Ethernet switches (also known as bridges) require that there be no loops in the network, otherwise network storms will occur and the entire network will be interrupted and unavailable. The most widely used method for loop dynamic detection and loop removal in the network is IEEE 802.1D 2004 version RSTP protocol. [0003] In the airborne network, the RSTP protoc...

Claims

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Application Information

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IPC IPC(8): H04L12/705H04L29/06H04L45/18
CPCH04L45/18H04L65/65
Inventor 赵羚钧向柯
Owner CETC AVIONICS