CN202495941U

CN202495941U - Composite optical cable network system

Info

Publication number: CN202495941U
Application number: CN2012201293129U
Authority: CN
Inventors: 任卫东; 林亦雷; 赵海; 张小越
Original assignee: Shanghai Electric Power Corp; Shanghai Jiulong Electric Power Technology Co Ltd
Current assignee: Shanghai Electric Power Corp; Shanghai Jiulong Electric Power Technology Co Ltd
Priority date: 2012-03-30
Filing date: 2012-03-30
Publication date: 2012-10-17
Anticipated expiration: 2022-03-30

Abstract

The utility model relates to a composite optical cable network system, which comprises a backbone layer mechanism, a convergence layer mechanism and an access layer mechanism. The entry layer structure is the optical cable for accessing end users. Compared with the prior art, the utility model has fewer network nodes and a relatively stable network structure, which can avoid the large span of the access transmission layer caused by the direct entry of the access point into the core layer, the complex networking, difficult management and the difficulty of the main optical fiber Consumption is serious and other problems, and it can also access users quickly and flexibly.

Description

A kind of composite cable network system

Technical field

The utility model relates to a kind of network system, especially relates to a kind of composite cable network system.

Background technology

Though existing optical cable technology has obtained significant progress; But generally all be that requirement ' point-to-point ' according to each operator is laid, do not have the planning thinking of own construction network, make that the optical cable on the road all is ' crisscross '; Lack level; And same route is laid the special optical cable of a plurality of operators, makes cable resource not share, and the fibre core utilance is extremely low.We can say that present cable network construction all is the dedicated network of building for operator, be difficult to utilize its recreation more to overcharge benefit, caused the very big wasting of resources.

Newly-increased optical fiber charter business amount also is to glide year by year, and structure is single, and return rate is not high, and adding all is the special optical cable for operator's construction, makes fibre core can not give full play to economic benefit.Also have optical cable to insert engineering demand though operator is annual at present; But from this trust amount in several years, the trend that all tapers off, and also decrement constantly increases; For example: the optical cable construction trust amount that moves in 2006 reduced 26.3% than 2005, and reduced 39% than 2006 in 2007.Neither one is efficient, flexibly in this and the prior art, and the network that can satisfy operator's needs more fast is closely related.

The utility model content

The purpose of the utility model is exactly to provide a kind of network configuration relatively stable in order to overcome the defective that above-mentioned prior art exists, composite cable network system that can fast and flexible ground access user.

The purpose of the utility model can realize through following technical scheme:

A kind of composite cable network system; This network system comprises backbone layer mechanism, convergence-level mechanism and Access Layer mechanism; Described backbone layer structure is the backbone node of the interconnected state of circle; Described convergence-level mechanism is made up of the transformer station that inserts the backbone layer structure, and described Access Layer structure is for inserting end user's optical cable.

Described backbone node is provided with six.

Per eight transformer stations constitute a convergence-level unit, and each transformer station connects with the grid network form, has two transformer stations to be connected with the backbone layer structure in each convergence-level unit.

Described optical cable extends to the end user with tree-shaped, ring network form.

Compared with prior art, the utlity model has following advantage:

(1) the core transport layer is mainly by miscellaneous service core processing node (data center; Switching center etc.) interconnected formation; Be responsible for the transmission of big capacity repeat circuit between core node, and long-distance transmission node, with the interconnection of other networks, be local core of transmitting net.Network node quantity is less, network configuration is relatively stable, but the Network capacity is big, circuit allocation is frequent, therefore structure, the security reliability of network is had relatively high expectations;

(2) converge transport layer and mainly constitute, be responsible for converging and dredging in certain zone, require to have powerful service dispatching ability by aggregation node and core node interconnection.Through the construction of convergence-level, can avoid owing to access point is big directly into the access transport layer span that core layer causes, networking is complicated problem such as manageability and trunk optical fiber consumption is not serious;

(3) insert transport layer and mainly be made up of service node (like POP point, some big customers) and the aggregation node interconnection that business is comparatively concentrated, the business of being responsible for each Service Access point transmits.Access layer equipment will have multi-service transfer capability and good network extended capability, so that fast and flexible ground inserts the user.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.

Embodiment

A kind of composite cable network system, its structure is as shown in Figure 1, and this network system comprises backbone layer mechanism 1, convergence-level mechanism 2 and Access Layer mechanism 3; Backbone layer structure 1 is the backbone node of complete interconnected state; Be provided with six altogether, convergence-level mechanism 2 is made up of the transformer station that inserts the backbone layer structure, and per eight transformer stations constitute a convergence-level unit 21; Each transformer station connects with the grid network form; Have two transformer stations to be connected with backbone layer structure 1 in each convergence-level unit 21, Access Layer structure 3 is for inserting end user's optical cable, and optical cable extends to the end user with tree-shaped, ring network form.

The mesh network structure can realize the most perfect network coverage, and can offer the best network survivability and professional reliability guarantee, through a large amount of circuitous paths are provided, has improved network and professional reliability greatly.Ring network and mesh network are two kinds of important networking modes of core transport layer, are coexistence and complementary relationship.At the networking initial stage, when traffic carrying capacity and network node did not reach a certain amount of, looped network was a kind of selection of the best, and when the development along with network and business, when traffic carrying capacity and network node quantity reached a certain amount of, looped network can develop to grid network gradually.

Claims

1. composite cable network system; It is characterized in that; This network system comprises backbone layer mechanism, convergence-level mechanism and Access Layer mechanism; Described backbone layer structure is the backbone node of complete interconnected state, and described convergence-level mechanism is made up of the transformer station that inserts the backbone layer structure, and described Access Layer structure is for inserting end user's optical cable.

2. a kind of composite cable network system according to claim 1 is characterized in that described backbone node is provided with six.

3. a kind of composite cable network system according to claim 1 is characterized in that, per eight transformer stations constitute a convergence-level unit, and each transformer station connects with the grid network form, has two transformer stations to be connected with the backbone layer structure in each convergence-level unit.

4. a kind of composite cable network system according to claim 1 is characterized in that described optical cable extends to the end user with tree-shaped, ring network form.