Method and related device and communication system for realizing network virtualization

Abstract

A method for realizing network virtualization, a related device and a communication system. Wherein, the method for implementing network virtualization may include: the SDN controller receives a virtual network creation request carrying virtual network topology information; creating a virtual network to respond to the above virtual network creation request; the above SDN controller establishes a device mapping relationship, and the above SDN controller A port mapping relationship is established, the SDN controller assigns a virtual SDN controller to the virtual network; the SDN controller registers the first virtual forwarding device and the second virtual forwarding device with the virtual SDN controller. The technical solutions of the embodiments of the present invention are beneficial to improving the flexibility of service networking, reducing service costs, and shortening the service provisioning cycle.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for realizing network virtualization, a related device and a communication system. Background technique [0002] With the gradual popularization of cloud computing, more and more SME users hope that operators can provide private network services. However, many problems exist in the current virtual private network (VPN, Virtual Private Network). For example, VPN can only provide star topology, full mesh topology or partial full mesh topology, but cannot deploy a virtual network of any topology according to user needs. The VPN configuration is complex and the service provisioning period is long (about 16 days). But now the cloud data center can realize instant application and instant creation, and the opening speed of the VPN cannot match the creation speed of the cloud data center. [0003] Route exchange is implemented between VPN sites through Border Gateway Pr...

AI Technical Summary

Problems solved by technology

For example, VPN can only provide star topology, full mesh topology or partial full mesh topology, but cannot deploy a virtual network of any topology according to user needs

The VPN configuration is complex and the service activation cycle is long (about 16 days)

Now the cloud data center can realize instant application and instant creation, and the opening speed of the VPN cannot match the creation speed of the cloud data center

[0003] Route exchange is implemented between VPN sites through Border Gateway Protocol (BGP, Border Gateway Protocol). BGP route propagation and exchange is limited, and a router supports up to 4096 VPNs, which causes high VPN service costs and makes VPN services expensive. Most small and medium-sized enterprises do not adopt VPN business

[0004] The characteristics of existing VPN solutions in terms of service provisioning period, business networking flexibility and cost are becoming more and more difficult to adapt to diverse customer needs

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