Method for establishing SSH connection, relevant equipment and system

A forwarding device and reconnection technology, applied in the computer field, can solve the problems of low efficiency and long time consumption

Active Publication Date: 2017-07-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the existing technology is that when the SSH connection between the master controller and the forwarding device is disconnected, the standby controller of the forwarding device needs to conduct SSH negotiation

Method used

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  • Method for establishing SSH connection, relevant equipment and system
  • Method for establishing SSH connection, relevant equipment and system
  • Method for establishing SSH connection, relevant equipment and system

Examples

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Embodiment Construction

[0110] The technical scheme of the present invention will be clearly described below in conjunction with the accompanying drawings, first through figure 2 To describe in detail how to perform SSH negotiation when establishing an SSH connection between the controller (which can be the primary controller or the standby controller) and the forwarding device in the embodiment of the present invention, and then pass Figure 3-7 Describe how the present invention simplifies the SSH negotiation process to improve the efficiency of establishing a new SSH connection between the standby controller and the forwarding device after the SSH connection between the master controller and the forwarding device is disconnected.

[0111] See figure 2 , figure 2 It is a schematic diagram of the process of establishing an SSH connection through SSH negotiation between the controller and the forwarding device. The detailed description of the process is as follows:

[0112] Step 1: version negot...

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PUM

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Abstract

Disclosed are a method for establishing a secure shell (SSH) connection, relevant equipment and a system. A main controller receives a forwarding equipment identifier and a standby controller identifier sent by a cluster controller, and the cluster controller is used for managing controllers in a cluster; the main controller negotiates, through an SSH, with forwarding equipment indicated by the forwarding equipment identifier to obtain negotiation parameters, and establishes an SSH connection with the forwarding equipment on the basis of the negotiation parameters; and the main controller sends the negotiation parameters to a standby controller indicated by the standby controller identifier, the negotiation parameters being used for enabling the standby controller to establish a new SSH connection with the forwarding equipment after the SSH connection established between the main controller and the forwarding equipment is broken. The present invention can improve the efficiency of establishing a new SSH connection between forwarding equipment and a standby controller after an SSH connection between the forwarding equipment and a main controller is broken.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a method for establishing a secure shell protocol (English: SecureShell, SSH) connection, related equipment and a system. Background technique [0002] Software-defined networking (English: software-defined networking, SDN) is a new type of network. Its core is to divide the underlying network into a control layer and a forwarding layer. The controller of the control layer configures services for the forwarding devices of the forwarding layer (such as VLAN configuration Wait). In SDN, if the controller software fails, the communication link between the controller and the forwarding device fails, or the data center where the controller is located is powered off, the pre-established SSH connection between the forwarding device and the controller is disconnected. , the service of the forwarding device cannot be configured. [0003] In order to solve the above problems, t...

Claims

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/0668
Inventor 孙大宇常欣雷歆
Owner HUAWEI TECH CO LTD
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