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A EVPN networking system and method for data center multi-fabric scenarios

A data center and scenario technology, applied in the direction of digital transmission system, data exchange network, transmission system, etc., can solve the problem of establishing Layer 2 tunnel that cannot realize routing.

Active Publication Date: 2021-06-11
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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  • A EVPN networking system and method for data center multi-fabric scenarios
  • A EVPN networking system and method for data center multi-fabric scenarios
  • A EVPN networking system and method for data center multi-fabric scenarios

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, the client is the spine device in each fabric, and the s-spine provides the overlay route reflection function for each spine device; The spine device acts as a secondary RR device, and the client is all the leaf devices inside the fabric. The spine device provides the 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 intercommunic...

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 networking system and method for multi-Fabric scenarios in a data center, which belong to the field of SDN and computer networks. There is no need to modify the corresponding configuration of the core device when expanding or replacing the access device. The technical solution adopted is: ① The system includes a role division unit, an underlay routing planning unit and an overlay routing planning unit. The role division unit is used to divide the roles of each device; s ‑spine is the first-level RR device, and the client is the spine device in each fabric, providing overlay route reflection function for each spine; the spine device is the second-level RR device, and the client is all the leaf devices in the fabric, providing leaf Route reflection function; leaf is the access device. ②The steps of the method are as follows: S1. Establish OSPF neighbor relationship; S2. Create and publish a loopback interface; S3. Deploy a first-level RR; S4. Deploy a second-level RR; S5. Deploy an 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 Patents(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