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Ring stacking system path switching method, first and second stacking devices

A technology for stacking devices and stacking systems, applied in the field of communication, can solve the problems of large amount of calculation and consumption of resources, and achieve the effect of ensuring stability and reliability and improving forwarding reliability.

Active Publication Date: 2022-01-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The path switching method of the ring stacking system and the first and second stacking devices provided by the embodiments of the present invention mainly solve the technical problem that when the existing ring stacking system breaks down due to a fault, each stacking device in the stacking system needs to perform topology Calculation results in a large amount of calculation and consumes a lot of resources

Method used

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  • Ring stacking system path switching method, first and second stacking devices
  • Ring stacking system path switching method, first and second stacking devices
  • Ring stacking system path switching method, first and second stacking devices

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Experimental program
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Effect test

Embodiment 1

[0048] The ring-shaped stacking system in this embodiment is composed of multiple stacking devices, and each stacking device is connected to two adjacent stacking devices through its own two ports, for example, see figure 1 The ring-shaped stacking system shown is composed of stacking equipment A, stacking equipment B, stacking equipment C, stacking equipment D, and stacking equipment E. Stacking equipment A communicates with adjacent stacking equipment B and stacking equipment through its own two ports. E connection, other stacking devices are also connected in a similar way to connect to their respective adjacent stacking devices. It should be understood that the number of stacking devices included in the stacking system in this embodiment can be flexibly set according to specific application scenarios, and can be 4, 5, and so on. In this embodiment, the path of each stacking device in the ring stacking system can only be two exits, that is, its own two ports connected to ad...

Embodiment 2

[0065] The ring-shaped stacking system provided in this embodiment is still composed of multiple stacking devices, and each stacking device is connected to two adjacent stacking devices through its own two ports. In this embodiment, the path of each stacking device in the ring stacking system can only be two outlets, that is, its own two ports connected to adjacent stacking devices. In this embodiment, when the ring-shaped stacking system fails, the stacking devices on both sides of the fault point can detect the fault by detecting that the state of their corresponding ports is down or that the stacking system is split. In this embodiment, it is called The first stacking device and the adjacent stacking devices that are directly connected to the stacking device that has detected the fault are referred to as second stacking devices. Therefore, in this embodiment, each stacking device in the ring stacking system may be the first stacking device or the second stacking device at a...

Embodiment 3

[0085] The ring-shaped stacking system provided in this embodiment is still composed of multiple stacking devices, and each stacking device is connected to two adjacent stacking devices through its own two ports. In this embodiment, the path of each stacking device in the ring stacking system can only be two outlets, that is, its own two ports connected to adjacent stacking devices. In this embodiment, when the ring-shaped stacking system fails, the stacking devices on both sides of the fault point can detect the fault by detecting that the state of their corresponding ports is down or that the stacking system is split. In this embodiment, it is called The first stacking device and the adjacent stacking devices that are directly connected to the stacking device that detects the fault are referred to as second stacking devices. Therefore, in this embodiment, each stacking device in the ring stacking system may be the first stacking device or the second stacking device at a cert...

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Abstract

The invention provides a path switching method of an annular stacking system, first and second stacking devices, the annular stacking system is composed of a plurality of stacking devices, and each stacking device is respectively connected to two adjacent stacking devices through two ports; detection The first stacking device that has a ring stack system fault on one of its own ports sends a single-hop switchover packet to its adjacent second stacking device; the second stacking device that receives the one-hop switching Among all the device paths except the device path connected to the first stacking device, the exit of the path is the device path of the port receiving the switching message, and the switching to a new path whose path exit is another port of the second stacking device is Reliable and fast switching of paths including faulty ports can be completed, fast fault convergence of the ring stacking system can be completed without complicated topology calculations, and the CPU of the stacking device will not be rushed during this period, ensuring system stability and reliability .

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for switching paths in a ring stacking system, and first and second stacking devices. Background technique [0002] In switch and PTN (Packet Transport Network) and other product fields, under normal circumstances, when a link failure or equipment failure occurs in the ring stacking system, the ring breaking phenomenon of the ring stacking system will first occur. After this phenomenon occurs, Generally, stacking devices will use a network topology calculation method to calculate each stacking device in the stacking system after the ring is broken. The calculation method is generally the same as the SPF (Shortest Path First) is calculated in a similar manner, and the shortest path from each device to any device in the system is calculated in the system. [0003] However, the topology calculation of each stack device will be involved after the ring is broken. Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/28H04L45/00H04L45/17H04L45/76H04L45/24H04L45/122H04L45/58
CPCH04L45/20H04L45/22H04L45/28H04L45/583
Inventor 林宁
Owner ZTE CORP
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