Wavelength division multiplexing technology-based metropolitan area network system

A wavelength division multiplexing and network system technology, applied in the field of electricity, can solve the problems of IP metropolitan area network lack of effective protection, waste of optical fiber and pipeline resources, etc., and achieve the effect of improved security and flexible structure

Inactive Publication Date: 2011-01-12
SHANGHAI POSTS & TELECOMM DESIGNING CONSULTING INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide a kind of metropolitan area network system based on wavelength division multiplexing technology, described this metropolitan area network system based on wavelength division multiplexing technology wi

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  • Wavelength division multiplexing technology-based metropolitan area network system
  • Wavelength division multiplexing technology-based metropolitan area network system

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[0026] Example 1:

[0027] Such as figure 1 As shown, a metropolitan area network system based on wavelength division multiplexing technology of the present invention is composed of a wavelength division multiplexing device and an IP metropolitan area network, wherein the wavelength division multiplexing device takes IP as the core and the wavelength division multiplexing The equipment is deployed on the core, backbone, convergence node and access node of the IP metropolitan area network. The router in the IP metropolitan area network is directly connected to the wavelength division multiplexing equipment wavelength, and the router is coupled through the wavelength division multiplexing The device is directly connected to the wavelength division multiplexing fiber.

[0028] Further, 1+1 optical channel protection, two-fiber bidirectional optical channel shared protection ring, two-fiber bidirectional optical multiplex section protection ring and subnet connection protection are ad...

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Abstract

The invention relates to a wavelength division multiplexing technology-based metropolitan area network system, which consists of wavelength division multiplexing equipment and an IP metropolitan area network. The wavelength division multiplexing equipment takes an IP as a core and is distributed in a core, backbones, convergent nodes and access nodes of the IP metropolitan area network. A router in the IP metropolitan area network is directly in wavelength connection with the wavelength division multiplexing equipment. The router is directly connected to a wavelength division multiplexing optical fiber by a wavelength division multiplexing coupler. 1+1 optical channel protection, a two-fiber bidirectional optical channel shared protection ring, a two-fiber bidirectional optical multiplexing section protection ring and subnetwork connection protection are adopted on an optical layer. The 1+1 optical channel protection, 1+1 multiplexing section protection and OTS-based 1+1 line protection are adopted on the optical layer. Subwavelength protection is provided on an electric layer. The wavelength division multiplexing technology-based metropolitan area network system completes service engineering of the network by using an appointed wavelength as bypass or being directly connected on an IP layer.

Description

Technical field: [0001] The invention relates to the field of electricity, in particular to communication technology, in particular to a metropolitan area network system based on wavelength division multiplexing technology. Background technique: [0002] In the prior art, IP MAN, as an extension of the Internet in cities, is an open integrated network platform that can provide services such as voice, image, data, multimedia, IP access, and various value-added and intelligent services. Its network structure is generally: [0003] The backbone layer is based on IP over SDH / ATM or optical fiber direct connection, adopts gigabit or terabit line-speed routers, or large-capacity ATM switches, provides high-speed core switching functions and fast routing processing functions, and meets the complex routing protocol support of the core network , strategy distribution, etc. [0004] The aggregation layer mainly completes service aggregation and IP exchange processing, and is the ter...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L12/56H04Q11/00H04J14/02H04J3/08
Inventor 张芸吴根生王悦唐盛杰郑翚
Owner SHANGHAI POSTS & TELECOMM DESIGNING CONSULTING INST
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