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Method, device and system for graceful restart

A graceful restart and device technology, applied in the field of data communication, can solve problems such as business traffic forwarding, avoid system overhead and risk of flow interruption, and achieve the effect of uninterrupted forwarding

Active Publication Date: 2022-06-28
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides an elegant restart method, device and system, which are used to solve the problem of service flow forwarding after the restart of the MLAG process of any network device in the MLAG domain

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  • Method, device and system for graceful restart
  • Method, device and system for graceful restart

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described here are only a part of the embodiments of the present invention, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The system architecture and business scenarios described in the embodiments of the present invention are for the purpose of illustrating the technical solutions of the embodiments of the present invention more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. The evolution of the architecture and the emergence of new business scenarios, the techn...

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Abstract

The embodiment of the invention discloses a method, device and system for graceful restart, relates to the field of data communication, and realizes uninterrupted forwarding of business traffic. The method includes: after the MLAG process of the local network device is restarted, load the MLAG configuration, and record the initial port state of the LAG port of the local device into a temporary table; send a negotiation message to the peer network device in the MLAG domain to communicate with all The peer network device re-establishes the pairing relationship; the local network device starts a timer, exchanges synchronization messages with the peer network device, calculates the current port status of the LAG port, and updates it to the temporary table ; If the timer expires, the local network device compares the table entry corresponding to the LAG port in the temporary table with the table entry corresponding to the LAG port in the external setting database of the device to determine whether to update the device's A hardware forwarding plane and the external setting database.

Description

technical field [0001] The present invention belongs to the field of data communication, and in particular relates to a method, device and system for graceful restart. Background technique [0002] The Multi-Chassis Link Aggregation Group (MLAG) technology is a cross-device link aggregation technology that virtualizes two physical devices into one device at the aggregation level to achieve cross-device link aggregation. This provides device-level redundant protection and traffic load. In the network topology of MLAG technology, one MLAG domain contains two paired network devices. In this network topology, if the MLAG process restarts on any of the two paired network devices in the MLAG domain, how to implement MLAG? In the process of restarting the process, the uninterrupted forwarding of the service traffic passing through the network device is an urgent problem to be solved. SUMMARY OF THE INVENTION [0003] The present invention provides an elegant restart method, dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0803H04L45/24
CPCH04L41/0803H04L45/245
Inventor 胡雅庆
Owner MAIPU COMM TECH CO LTD
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