Method and device for forwarding three-layer data flow in data center site

A data center and data flow technology, applied in the field of network communication, can solve the problems of increasing network traffic, increasing the computing burden of edge devices, and not being able to forward the three-layer data flow in time, so as to reduce network traffic.

Active Publication Date: 2015-04-15
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the above-mentioned solutions of the prior art, the edge devices in each site need to send local gateway information to the edge devices in other remote sites, thereby increasing network traffic, especially when there are many sites; and, by the edge Device management and selection to replace the first-hop gateway increase the computing burden of edge devices
[0011] In addition, when selecting an alternative first-hop gateway, the preset rules are selected randomly or with the highest priority. In this way, the edge device in the site where the selected alternative first-hop gateway is located may not be optimal. The edge device in the site where the first-hop gateway of the alternative first-hop gateway is located is busy, but there are relatively idle edge devices in the site where the first-hop gateway of the unselected remote site is located. The edge device in the site where the alternate first-hop gateway is located forwards to the alternate first-hop gateway. Therefore, on the one hand, the Layer 3 data flow in the local site will not be forwarded in time; on the other hand, the alternate first-hop The data flow forwarding congestion of edge devices in the site where the gateway is located is even more serious

Method used

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  • Method and device for forwarding three-layer data flow in data center site
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  • Method and device for forwarding three-layer data flow in data center site

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] in such as figure 1 The shown EVI network includes multiple data center sites (hereinafter referred to as sites), and Layer 2 network interconnection is realized between each site, and each site includes: an edge device (ED) and a first-hop gateway (GW ), in addition, in the layer-2 interconnection network (in the EVI network, the layer-2 interconnection network is an overlay network), a Server (server) is added, which is used to manage and maintain the site where the edge devices in each site are located At the same time, it also maintains and manages the ping (Packet Internet Groper, Internet packet explorer) delay from each edge device to neighboring edge devices in other sites. In actual implementation, the Server may be an independent device, or may be installed in an existing device, which is not limited in the present invention.

[0040] Based on this network architecture, Embodiment 1 of the present invention provides a method for forwarding layer 3 data stream...

Embodiment 2

[0085] by Figure 4-6 The shown EVI network is taken as an example to illustrate the method in the first embodiment above. In the EVI network, a Server is deployed in the overlapping network.

[0086] Such as Figure 4 As shown in , the edge device ED 1 listens to the FHRP packet of the first-hop gateway GW1 (in Figure 4 Indicated by a solid thick line with an arrow), from which the gateway information of GW1 is obtained, including: the virtual IP address and virtual MAC address of GW1, etc. ED1 discovers the neighbor edge devices ED2 and ED3 in other sites Site2 and Site3 through the ENDP protocol, And establish the EVI Link between ED2 and ED3, and then periodically perform ping operations through the EVI Link between ED2 and ED3 to obtain the ping delay from itself to ED2 and ED3.

[0087] After obtaining the above information for the first time, ED1 can encapsulate the information (including the gateway information of GW1 and the ping delay from ED1 to ED2 and ED3) in ...

Embodiment 3

[0093]For the method in Embodiment 1 above, an edge device to which this method can be applied is provided, and the edge device can be an edge device in any site, that is, the first edge device in Embodiment 1), where the edge device is located The data center site also includes the first first-hop gateway, and this edge device can be applied to the EVI network and VPLS network that realize Layer 2 network interconnection between data center sites.

[0094] Such as Figure 7 As shown, the edge device includes: an acquisition module 101, a sending module 102, a detection module 103, a request module 104 and a receiving module 105, wherein:

[0095] The obtaining module 101 is configured to listen to the FHRP message sent by the first first-hop gateway in the data center site, obtain the gateway information of the first first-hop gateway from the FHRP message, and obtain the information sent by the edge device to other data centers. The ping delay of neighbor edge devices in th...

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Abstract

The invention discloses a method and a device for forwarding three-layer data flow in a data center site. The method comprises the following steps that a server is used for maintaining and managing gateway information of a first jump gateway in the site, which is obtained by each edge device, and ping time delay from self to a neighbor edge device in another site, and when changes occur, updating is performed; and after the first jump gateway fails in the site, the server is requested to replace the information of the first jump gateway by the edge device, an optimal first jump gateway in the site where the edge device is located is selected by the server to be used as a replaced first jump gateway, thereby hosting the three-layer data flow in the site to the replaced first jump gateway. According to the method and the device, the operation burden of the edge device and the network flow are reduced.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and equipment for forwarding three-layer data flow in a data center site. Background technique [0002] In order to achieve high reliability and redundant deployment, and provide better services, most enterprise networks and their data centers or service providers usually deploy multiple data centers in different places to achieve load sharing and high reliability, and implement virtual machine Free migration between data centers. Since the migration process of the virtual machine is transparent to the user, and the IP (Internet Protocol, Internet Protocol) address cannot be changed, it is necessary to implement Layer 2 network interconnection between data centers distributed in different places. Existing Layer 2 network interconnection technologies include: EVI (Ethernet Virtualization Interconnection, Ethernet Virtual Interconnection) and VPLS (Virtual P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/773H04L12/801
Inventor 江帅华魏巍周万
Owner XINHUASAN INFORMATION TECH CO LTD
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