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A method and device for maintaining a forwarding entry

A forwarding table entry and unified technology, applied in the field of network communication, can solve problems such as service traffic cannot be forwarded normally, and achieve the effect of improving network reliability and avoiding interruption

Active Publication Date: 2020-03-06
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a forwarding table item maintenance method and device to solve the problem in the prior art that some service traffic cannot be forwarded normally due to a link failure between one of the VTEP devices in the distributed aggregation group and the remote VTEP device

Method used

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  • A method and device for maintaining a forwarding entry
  • A method and device for maintaining a forwarding entry
  • A method and device for maintaining a forwarding entry

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0030] See image 3 , is a schematic flowchart of a method for maintaining a forwarding entry provided in an embodiment of the present invention, wherein the method for maintaining a forwarding entry can be applied to a MLAG networking running the EVPN protocol, and the MLAG networking includes multiple VTEP devices, and remote VTEP devices connected to multiple VTEP devices in the distributed aggregation, such as image 3 As shown, the forwarding entry maintenance method may include:

[0031] It should be noted that, in this...

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Abstract

The present invention provides a method and device for maintaining forwarding entries. The method includes: when receiving an EVPN route synchronized by a VTEP device in a distributed aggregation group, and the EVPN route carries a preset identifier, saving the EVPN route; wherein, the preset identifier is used to indicate that the EVPN route is a route for the same MAC address that is not synchronized for the first time in the same distributed aggregation group; when the link between itself and the target VTEP device in the distributed aggregation group When the path fails, the corresponding forwarding entry is maintained according to the saved EVPN route carrying the preset identifier. The application of the embodiment of the present invention can avoid the interruption of related service traffic caused by the link failure between the VTEP equipment in the distributed aggregation group and the remote VTEP equipment, and improve the reliability of the networking.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and device for maintaining forwarding entries. Background technique [0002] VXLAN (Virtual Extensible Local Area Network, scalable virtual local area network) is based on IP (Internet Protocol, Internet Protocol) network, using "MAC (Media Access Control, Media Access Control) in UDP (User Datagram Protocol, User Datagram Protocol) "Layer 2 VPN (Virtual Private Network, Virtual Private Network) technology in encapsulation form. Based on the existing service provider or enterprise IP network, VXLAN can provide Layer 2 interconnection for dispersed physical sites and provide service isolation for different tenants. [0003] At present, in order to improve the reliability of the VXLAN network, the concept of distributed aggregation is proposed to figure 1 The network shown is an example. Device A has 2 physical ports added to 1 aggregation port, and the oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/741H04L12/46H04L45/28H04L45/74
CPCH04L45/28H04L45/74H04L12/4641H04L12/4633
Inventor 唐成黄李伟
Owner NEW H3C TECH CO LTD
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