Routing management methods, devices, routers, readable storage media, and software products

CN119520364BActive Publication Date: 2026-05-26CHINA TELECOM CLOUD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA TELECOM CLOUD TECH CO LTD
Filing Date
2024-11-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the white-box Layer 3 switch networking architecture of the SONiC system, there is a problem of packet loss during the BGP route withdrawal process. Existing technologies have a long convergence time and are prone to packet loss.

Method used

When a route cancellation message is detected, a route cancellation message is generated and sent to the neighboring router. A route cancellation timer is started, and the route entry in the local routing table is deleted only after the neighboring router updates its routing table. This ensures that the neighboring router has enough time to process the cancellation message and avoids data packet loss.

Benefits of technology

By optimizing the BGP route cancellation process, network stability and packet transmission quality were improved, achieving zero packet loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a routing management method, apparatus, router, computer-readable storage medium, and computer program product, and pertains to the field of communication technology. The method applied to a first router includes: upon detecting a route cancellation message, generating a relevant route cancellation message; sending the route cancellation message to each neighboring router and starting a route cancellation timer; wherein the neighboring routers are routers that have established a border gateway protocol with the first router; and when the route cancellation timer expires and each neighboring router has updated its relevant neighbor routing table based on the route cancellation message, deleting the route entry associated with the route cancellation message from the first routing table; wherein the first routing table is the routing entry table of the first router. This method is beneficial for improving network stability and data packet transmission quality in BGP large-scale route cancellation scenarios, achieving true zero packet loss.
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