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Method and device for switching downlink flow and computer readable storage medium

A computer program and traffic technology, which is applied in the direction of data exchange, electrical components, and transmission systems through path configuration. It can solve problems such as difficulty in guaranteeing service quality, and achieve the effect of easy implementation and fast protection switching.

Pending Publication Date: 2022-04-15
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the CPE, the static route can perform fast rerouting (FRR) fast route switching within 50ms, and the upstream traffic can be immediately resumed and forwarded; however, the recovery process in the downstream direction takes several seconds, and the service quality is difficult to be guaranteed

Method used

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  • Method and device for switching downlink flow and computer readable storage medium
  • Method and device for switching downlink flow and computer readable storage medium
  • Method and device for switching downlink flow and computer readable storage medium

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Embodiment Construction

[0050] The present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0051] In related technologies, it is assumed that there are two WAN ports in the upstream of the CPE, each WAN port is associated with a VNI, and each VNI includes a VxLAN, and an IRB interface (also called BDIF) is enabled on each VNI. Assuming that the active link is the VxLAN associated with VNI X, when the underlying link of the VxLAN fails, BFD will detect the failure, and the CPE and PoP X will sense the failure and perform traffic switching respectively. On the CPE, the static route can perform FRR fast route switching within 50ms, and the upstream traffic can be immediately resumed and forwarded; but in the downstream direction, after PoP X obtains a BFD failure, it needs to withdraw the route corresponding to the IRB interface of the CPE, and transfer it from the PoP through BGP Z is revoked, and then PoP Z switches traffic to PoP Y after BGP converge...

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Abstract

The embodiment of the invention provides a method and device for switching downlink flow and a computer readable storage medium. The method comprises the steps that a first network service providing point (PoP) determines that a first link between the first PoP and client front equipment (CPE) breaks down; and sending the message which is packaged into a segment routing (SRv6) format of the sixth version of the Internet protocol to a second PoP, and sending the finally obtained tunnel packaged message to the CPE through a second link.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, device and computer-readable storage medium for switching downlink traffic. Background technique [0002] The Virtual Extended Local Area Network (VxLAN) is generated in the data center and is used for cross-IP large-scale intercommunication. The client front-end equipment (CPE) and the network service provider (PoP) are connected through a VxLAN tunnel. Two uplink WANs on the CPE Each port carries a VxLAN tunnel, and the virtual network Overlay implements the protection switching scheme by running the Bidirectional Forwarding Detection (BFD) mechanism and static routing. [0003] The current active-standby link switching solution requires the coordination of the CPE and the PoP to achieve simultaneous switching of uplink and downlink traffic. On the CPE, the static route can perform fast rerouting (FRR) fast route switching within 50ms, and the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L45/00H04L45/28H04L43/0811H04L12/46
Inventor 杨锋
Owner CHINA MOBILE COMM LTD RES INST