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Message forwarding method and device

A technology of message forwarding and data message, applied in the field of network communication, can solve problems such as waste of resources

Active Publication Date: 2019-09-06
北京华三通信技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to implement the application of a layer-2 firewall in EVPN, it is necessary to add an additional transit device between the layer-2 firewall device and the VTEP device connected to the layer-2 firewall device, wasting resources

Method used

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  • Message forwarding method and device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] This application optimizes the existing way of implementing Layer 2 firewall application in EVPN, for details, please refer to figure 1 The flow shown:

[0041] see figure 1 , figure 1 Flow chart of the method provided for this application. This process is applied to the first VTEP device in the EVPN, and the first VTEP device is connected to the layer-2 firewall device through the first interface. It should be noted that the names of the first VTEP device and the first interface here are just for convenience of description, and are not used for limitation.

[0042] Such as figure 1 As shown, the process may include the following steps:

[0043]Step 101, the first VTEP device sends the specified IP address to the second VTEP device in a route notification message.

[0044] Here, the second VTEP device generally refers to a VTEP device other than the first VTEP device, which is named for convenience of description and not for limitation.

[0045] In one example, t...

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Abstract

This application provides a message forwarding method and device. In this application, no matter whether the first VTEP device receives a data packet from a local VM or a data packet from a local VM of another VTEP device, it will forward the received data packet to the Layer 2 firewall device for secondary Layer-2 firewall processing realizes the application of layer-2 firewall in EVPN without additional equipment.

Description

technical field [0001] The present application relates to network communication technology, in particular to a message forwarding method and device. Background technique [0002] Ethernet Virtual Private Network (EVPN: Ethernet Virtual Private Network) is a Layer 2 Virtual Private Network (VPN: Virtual Private Network) technology. Currently, when EVPN is connected to a Layer 2 firewall device, because the Layer 2 firewall device does not have an IP address, even if EVPN is connected to the Layer 2 firewall device, the application of the Layer 2 firewall in EVPN cannot be implemented according to the EVPN protocol. [0003] In order to implement the application of the Layer 2 firewall in EVPN, the current common method is: add a device (called a transit device) between the Layer 2 firewall device and the VTEP device connected to the Layer 2 firewall device, and the transit device notifies this The IP address of the device, and configure policy routing (PBR: Policy Based Rout...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/721H04L12/741H04L29/06H04L45/74
CPCH04L45/66H04L45/74H04L63/0236H04L63/0272
Inventor 唐成黄李伟
Owner 北京华三通信技术有限公司