Virtual private network implementation method based on MPLS/OPS

A virtual private network and virtual private network technology, applied in the field of virtual private network and multi-protocol label switching/optical packet switching network, can solve the problem of not fully exploiting the advantages of optical fiber communication technology, scalability limitations, limited communication system capacity, etc. question

Inactive Publication Date: 2010-09-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

In the document [Research on Several Key Technologies in Optical Packet Switching Networks, Ji Wei, Ph.D. The business is limited and the capacity of the communi...

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  • Virtual private network implementation method based on MPLS/OPS
  • Virtual private network implementation method based on MPLS/OPS
  • Virtual private network implementation method based on MPLS/OPS

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Embodiment Construction

[0023] The all-optical processing and identification scheme of the tag signal of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0024] figure 1 Describes the MPLS / OPS network structure, the network is mainly composed of edge nodes and core nodes, edge nodes mainly complete MPLS edge label processing and OPS optical packet generation processing, such as analyzing IP packet headers through edge routers, which combines the functions of switches and traditional routers ; The core node mainly completes MPLS label switching and routing, and OPS optical label identification and update. The network combines the advantages of MPLS and OPS, and has the characteristics of high network resource utilization, balanced node information processing and high flexibility.

[0025] figure 2 It is a two-layer structure model of VPN network based on MPLS / OPS. As the control layer of the network, MPLS's main function is to c...

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Abstract

The invention relates to a virtual private network (VPN) implementation method based on multi-protocol label switching/optical packet switching (MPLS/OPS), combining the multi-protocol label switching (MPLS), the optical packet switching (OPS) and the virtual private network (VPN). The scheme is based on three-layer VPN, and the structure mainly includes a data plane and a control plane. The method is characterized in that a network tunnel protocol encrypts and encapsulates user data into VPN data, the VPN data is packed into optical packet (OPS) by a client edge device (CE) and is transmitted into a core network, the strong function of MPLS is utilized to carry out classifying mapping, and hierarchy label stack structure of MPLS is utilized to erasure old label and write in new label for forwarding in label switching route (LSP) forwarding process. Optical packet OPS dismounting process is realized at an exit border node, so as to obtain VPN data, a receiving terminal utilizes a corresponding key to carry out decryption authentication, thus obtaining the original data and realizing the whole data transmission process.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, in particular to virtual private network (VPN) and multi-protocol label switching / optical packet switching (MPLS / OPS) network technologies. Background technique [0002] In recent years, Internet services based on Internet Protocol (IP), such as distance education, video-on-demand, and high-definition television, have continued to grow, which not only puts forward higher and higher requirements for the bandwidth capacity of existing networks, but also leads to In the telecommunication business, the voice-based circuit switching service is transferred to the data-based packet switching service. The demand for bandwidth caused by data services increases rapidly, thus making the telecom network shift from the network optimized for voice services to the network dominated by IP services. [0003] The multi-protocol label switching (MPLS) technology further strengthens the function...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L29/06H04B10/12H04L45/50
Inventor 张崇富王正算
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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