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.
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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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