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Data message transmission methods and devices

A technology of data message and transmission method, which is applied in the field of communication, and can solve problems such as data message cannot be transmitted normally, flow interruption, and data message cannot be sent to host 1, etc., so as to improve user service experience, realize access, and avoid interruption Effect

Active Publication Date: 2019-03-01
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if host 1 is a silent host, that is, after host 1 goes online, it does not send gratuitous ARP packets, then distributed gateway 1 cannot learn the forwarding table entries of host 1, and distributed gateway 2 cannot learn the forwarding table of host 1 either. In this way, for the data packet sent by host 2 to host 1, the data packet cannot be sent to host 1, resulting in the failure of normal transmission of the data packet and interruption of traffic

Method used

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  • Data message transmission methods and devices
  • Data message transmission methods and devices

Examples

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Embodiment Construction

[0061] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the 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 "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0062] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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Abstract

The invention provides data message transmission methods and devices. The method comprises the steps of receiving a data message sent by a first host, wherein a destination IP address of the data message is an IP address of a second host; sending an ARP (Address Resolution Protocol) request message to a second distributed gateway according to at least one first egress interface indicated by a network segment route if a host route matching with the destination IP address does not exist in a local route table and the network segment route matching with a network segment to which the destinationIP address belongs exists; generating the host route in the local route table if a first route message which is sent by the second distributed gateway and comprises the destination IP address is received, wherein the host route comprises the destination IP address and a second egress interface; and sending the data message to the second host though utilization of the host route. Through application of the technical scheme provided by the invention, the data message can be transmitted normally, and a silent host can be accessed.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data message transmission method and device. Background technique [0002] EVPN (Ethernet Virtual Private Network, Ethernet virtual private network) is a two-layer VPN (Virtual Private Network, virtual private network) technology, and the control plane can use MP-BGP (MultiProtocol Border Gateway Protocol, multi-protocol border gateway protocol) To advertise routing information, and the data plane can use VXLAN (Virtual eXtensible Local Area Network, extensible virtual local area network) to encapsulate data packets. In an EVPN network, when the physical sites of tenants are scattered in different locations, based on the existing service provider network or enterprise IP network, Layer 2 interconnection can be provided for the same network segment of the same tenant, and different The network segment provides Layer 3 interconnection. [0003] Further, the advant...

Claims

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Application Information

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IPC IPC(8): H04L12/733H04L12/741H04L12/46H04L29/12H04L45/122H04L45/74
CPCH04L12/4633H04L45/20H04L45/74H04L45/745H04L61/103
Inventor 唐成黄李伟
Owner NEW H3C TECH CO LTD
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