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EVPN networking system and method for multiple Fabric scenes of data center

A technology for data centers and scenarios, applied in digital transmission systems, data exchange networks, transmission systems, etc., can solve problems such as the establishment of Layer 2 tunnels that cannot achieve routing, and achieve good promotion and use value and reduce the effect of impact

Active Publication Date: 2019-11-05
SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution focuses on the interconnection of multiple data centers. Through the establishment of GRE tunnels between the virtual routers of the data centers to realize the intercommunication between multiple data centers, it cannot realize the opening of routes in multi-fabric scenarios, the establishment and weakening of L2 tunnels Impact on core equipment when data center network equipment is changed

Method used

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  • EVPN networking system and method for multiple Fabric scenes of data center
  • EVPN networking system and method for multiple Fabric scenes of data center
  • EVPN networking system and method for multiple Fabric scenes of data center

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The EVPN networking system of the data center multi-Fabric scenario of the present invention, the system includes:

[0042] The role division unit is used to divide the roles of each device; the s-spine is a first-level RR (route reflector) device, and the client is the spine device in each fabric, which provides the overlay route reflection function for each spine; the spine device acts as a secondary Level RR device, the client is all the leaf devices inside the fabric, providing route reflection function for the leaf; the leaf is the access device;

[0043] The underlay routing planning unit is used to announce the loopback port address of the device to realize the intercommunication of the loopback port address;

[0044] The overlay routing planning unit is used to establish an EVPN neighbor relationship using the loopback interface address.

[0045] Wherein, the underlay routing planning unit uses the IGP to realize the intercommunication of the loopback port addr...

Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is that: the underlay routing planning unit adopts BGP to realize intercommunication of the loopback interface address, which is published in BGP through network.

Embodiment 3

[0049] Since the routing protocol of the underlay adopts OSPF, there are certain restrictions on the scale of the data center. Considering the LSDB scale of the protocol itself and the route convergence time, it is recommended to use OSPF to divide areas, or use IS-IS and BGP networking after the entire fabric network device exceeds 300. When the scale is not large, all network devices can be uniformly divided into the OSPF backbone area. The EVPN networking method of the data center multi-Fabric scenario of the present invention is shown in the attached figure 1 As shown, the method steps are as follows:

[0050] S1. Establish OSPF neighbor relationship: the leaf and spine are fully interconnected, the spine and s-spine are fully interconnected, and the leaf-spine-s_spine establishes an OSPF neighbor relationship through the interconnection address. All devices belong to the backbone area Area0, and all devices Use the p2p network type; usually, it is not recommended to use ...

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Abstract

The invention discloses an EVPN (Ethernet Virtual Private Network) networking system and method for multiple Fabric scenes of a data center, and belongs to the field of SDN and computer networks. Thetechnical problem to be solved by the invention is how to realize the intercommunication of the underlay and the overlay and how to modify the corresponding configuration of the core equipment when the access equipment is expanded or replaced by the leaf is solved; according to the technical scheme, the system comprises a role division unit, an underlay route planning unit and an overlay route planning unit, wherein the role division unit is used for dividing roles of all devices; the s-spine is a first-level RR device, the client is a spine device in each fabric, and provides a routing reflection function of overlay for each space; the spine device is used as a secondary RR device, and the client is all leaf devices in the fabric and provides a routing reflection function for leaf; wherein the leaf is access equipment. (2) the method comprises the following steps: S1, establishing an OSPF neighbor relation; s2, creating and publishing a loopback port; s3, deploying a first-level RR; s4, deploying a secondary RR; and S5, deploying the access leaf.

Description

technical field [0001] The present invention relates to the field of SDN and computer network, in particular to an EVPN networking system and method in a data center multi-Fabric scenario. Background technique [0002] Network virtualization is one of the main functions of cloud computing, and it is also one of the points that enterprises pay most attention to in terms of network operation and maintenance. Compared with traditional networks, virtualized networks have obvious advantages in unified management and control of equipment, flexibility and operability of service configuration. At present, the mainstream practice in the industry is that the SDN controller uniformly manages and controls the network devices inside the fabric, and realizes the intercommunication of the large layer 2 through the VxLAN+EVPN networking mode. In the scenario where the SDN controller is connected to the cloud platform, along with the migration of virtual machines and the on-demand launch of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/751H04L12/46H04L45/02
CPCH04L45/02H04L12/4641
Inventor 李政李彦君孙思清
Owner SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD