Routing announcement method and routing announcement device

A routing and notification technology, applied in the field of network communication, to avoid traffic interruption and improve reliability

Active Publication Date: 2017-06-20
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a route notification method and device to solve the problem that the reliability of the EVPN network needs to be further improved in the prior art

Method used

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  • Routing announcement method and routing announcement device
  • Routing announcement method and routing announcement device
  • Routing announcement method and routing announcement device

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Embodiment Construction

[0046]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0047] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term ...

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Abstract

The application provides a route announcement method and a route announcement device. The method, which is applied to a VTEP (Virtual Tunnel End Point) in a DR (Distributed Relay) system, comprises the following steps: receiving ARP (Address Resolution Protocol) information synchronized by other VTEPs in the same DR system; generating a first Ethernet virtual private network EVPN second-class route according to the synchronized ARP information, wherein the first EVPN second-class route has a first identifier which is used to show that the first EVPN second-class route is a route generated according to the ARP information synchronized by other VTEPs in the same DR system; and sending the first EVPN second-class route to a BGP route reflector having a border gateway protocol BGP neighbor relationship with the VTEP. Therefore, a VTEP receiving synchronized ARP information can also trigger and report a route, the situation in which traffic interruption is caused due to failure of a link where a single route is located is avoided, and the reliability of the EVPN network is improved.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a route notification method and device. Background technique [0002] EVPN (Ethernet Virtual Private Network, Ethernet Virtual Private Network) is a Layer 2 VPN technology. It uses BGP (Border Gateway Protocol, Border Gateway Protocol) on the control plane to advertise routing information, and uses VXLAN (Virtual eXtensible LAN) on the data plane. , scalable virtual local area network) encapsulation to forward user packets. [0003] The basic EVPN networking architecture mainly includes: VM (Virtual Machine, virtual machine), CE (CustomerEdge, user edge) device and VTEP (VXLAN Tunnel End Point, VXLAN tunnel end point). [0004] At present, in order to improve the reliability of the EVPN network, distributed aggregation technology is usually applied in the EVPN network, such as figure 1 shown. in such as figure 1 In the shown networking, VTEP1 and VTEP2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/707H04L12/709H04L12/703H04L12/741H04L12/46H04L45/24H04L45/243H04L45/28H04L45/74
CPCH04L12/4633H04L12/4641H04L45/24H04L45/245H04L45/28H04L45/74
Inventor 陈岩王伟
Owner NEW H3C TECH CO LTD
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