CN102136946B - Optical network topology graph drawing method and topological subsystem - Google Patents
Optical network topology graph drawing method and topological subsystem Download PDFInfo
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Abstract
The invention belongs to the field of optical communication, and particularly relates to an optical network topology graph drawing method and a method-based topological control subsystem. A comprehensive and multifunctional topology display and drawing technology for an optical fiber communication network is provided, and comprises an inter-node multi-link manual staggering drawing technology and an application layering optical network topology structure. A technology-based topological control defines a basic universal data structure, and can solve the problems of optical network modeling of given industries and given types.
Description
Technical field
The invention belongs to optical communication field, be specifically related to a kind of method for drafting and topological subsystem thereof of optical-fiber network topological diagram.
Background technology
In communication class software environment, network topology and modeling are the bases of data processing, so the demonstration of topological diagram is the problem that first will solve with drawing.But usually draw network and make topological diagram there is the technological layer that interactivity relates to wider, in Software for Design more complicated, require a high expenditure of energy, for a simple algorithm software, workload is too large.Present Domestic not yet has the topological diagram control of stand-alone development provider to use.
Growing along with network technology, may there is the topology of different application aspect in same physical network, it is particularly important that the layering of network seems, as different network layers such as physical layer, logical layer, operation layers, these applications have different topological structures, but may share identical network node, therefore different application layer has interdependence, have identical data structure, how in topology design, with the simplest and high efficiency mode, to consider these relevances and to show is a difficult problem.When network Development is after certain scale, may there is the situation of multilink between node in addition, how in topology is drawn, consider between node pair multilink situation and stagger to show it is another difficult problem that topology design need to solve.
Existing network topology shows Patents, and all based on a certain concrete technology, the patent emphasis that is CN1145311C as publication number is to find current network topology and through the mode of calculating, carries out positional alignment demonstration with certain.What the patent of publication number CN101582793A solved is in large scale network, the problem of node overlapping, and CN1145311C is basically identical, is all to solve node to arrange demonstration problem.Publication number is that the patent of CN101674197A is a kind of topological diagram display process based on convergent-divergent, and scaling is directly proportional to the complexity of optimizing display simulation Drawing Object, and scaling is less, optimizes display simulation Drawing Object complexity lower.Publication number is the patent of CN101217410B, it is a layering display technique based on node, according to the hierarchical relationship of node and level display state, determine the current topological structure that needs demonstration, this invention is the method for simultaneously showing different levels topology, this level refers to the hierarchy of node itself, is not the different application aspect of same physical network.
The present invention is one and comprised many-sided correlation technique of Networks of Fiber Communications Topology display and modeling for Networks of Fiber Communications, comprehensive Topology display and rendering technique, and proposed first between node the multilink rendering technique that manually staggers.What first solve is topological diagram Interactive Rendering, is secondly the layered modeling technology of communication network.Refer to that alternately topology element can edit arbitrarily in drafting, as selected, move, drag, convergent-divergent; Layering refers to the topological relation of the different application aspect of drawing the same network of throwing the net, the network node that this topology shared portion is identical, but Share interlinkage relation not, and in the present invention, this application is respectively physical layer, logical layer, operation layer, clock topological layer; Modeling refers to that network element can be according to the particular case of industry, and the business structure model of system of take is basis, can carry out the associated design of association attributes and relation.
Summary of the invention
First object of the present invention is to provide a kind of topological interaction technique, solves network topology for a long time and draws a difficult problem, mainly comprises following aspect:
(1) node is drawn, and supports additions and deletions, copies, selects, drags, the dynamic interaction function such as convergent-divergent;
(2) drafting of OLE node, utilizes it can draw complex network schematic diagram and the mark of being correlated with;
(3) link is drawn, and supports the functions such as additions and deletions, selection, movement.The interpolation of link and mobile based on node, after node motion, coupled link automated movement, newly-increased link must manually connect two nodes;
(4) multilink parallel drawing between node, multilink can manual alignment position, and link supports that mid-handle drags deformation technology;
Second object of the present invention is to provide a kind of application layer demixing technology of network topology, the application layer here mainly refers to physical layer, logical layer, operation layer and clock topological layer, this hierarchy topology is based on same physical network, have common nodal analysis method, but link model based on different.
The 3rd object of the present invention is to provide Internet resources modeling technique.The all network topology elements that the present invention relates to, comprise that the resources such as node device, physical link, logical links, passage, business have all designed relevant bottom data structure, comprise Resource Properties, incidence relation etc., and this is the basis of Network Topology Design planning.
Method for drafting according to a kind of optical-fiber network topological diagram of the present invention, comprising:
(1) draw node: in elected after the equipment of particular type, the optional position left button of clicking the mouse increases a network element device in topological diagram;
(2) draw physical link: after being switched to physical layer view, choose link to draw, left mouse button is drawn straight line between two node devices, represents physical link;
Article one, physical link corresponds to a physics optical cable, and it is physical fiber after launching;
(3) draw service link and service display: after being switched to operation layer view, choose link to draw, left mouse button is drawn straight line between two node devices, represents service link;
Choose a service link, in right mouse button menu, increase a business, represent the business comprising in this service link, in its attribute form, can revise its association attributes, business route can the form with logical links be carried out overstriking and/or painted demonstration to it after calculating in logical view;
(4) rendering logic link and passage are shown: after being switched to logical layer view, choose link to draw, draw straight line, presentation logic link between two node devices with left mouse button;
Choose a logical links, increase a passage in right mouse button menu, represent the passage that this logical links comprises, passway is by can the form with physical link carry out overstriking and/or painted demonstration to it in Physical View after calculating;
(5) drawing clock chain circuit and clock shows: after being switched to Clock view, choose link to draw, between two node devices, left mouse button is drawn straight line, represents clock chain circuit;
The drafting of described node supports additions and deletions, copy, select, drag dynamic interaction function and state with convergent-divergent;
The drafting support target of described node connects and embeds OLE technology, the mark that utilizes this technology can draw complex network schematic diagram and be correlated with;
Additions and deletions, selection and locomotive function are supported in the drafting of described physics, logic, business and clock chain circuit, after node motion, and coupled all link automated movements position.
The present invention also provides a kind of topological subsystem that uses the method for drafting of above-mentioned optical-fiber network topological diagram, comprises
(1) applying hierarchical technology, application layer comprises physical layer, logical layer, operation layer and clock topological layer, and described four kinds of application layers have network topology structure and correlation separately, and described optical-fiber network can carry out free switching between four kinds of application layers;
Routing iinformation that can painted display channel directly perceived in described physical layer;
Routing iinformation that can painted display business directly perceived in described logical layer;
(2) many resources of carrying in link can the staggered demonstration in the mode manually dragging: link can be in launching or merging phase, when link is during in deployed condition, many passage capable of beings that comprise in many business that many optical fiber, the service link wherein comprising in physical link comprises, logical links are clicked with mouse the mode that its mid-handle drags and are carried out staggered displaying.
Wherein, provide particular optical network Resource Modeling Method in a kind of specific industry, it follows following feature:
(1) utilize the raw control of this subsystem architecture substantially can simulate the imitative various optical communication networks of every profession and trade, and set up own network model, can be on this control basis integrated oneself the feature algorithm routine of client, the workload of minimizing network modelling;
(2) all optical-fiber network topology elements, comprise that the resource of node device, physical link, logical links, passage and business has all designed relevant bottom data structure, comprise Resource Properties and incidence relation, form the basis of network modelling;
(3) this topology subsystem is comprised of five large generic modules: topological operational module, link module, node module, channel module and business module; Wherein topological operational module is system call class, is responsible for processing with extraneous interface and all modelling operabilities, and other four generic module is system resource class;
(4) system resource generic module all comprises the three major types public attributes such as title, type and 16 reserved attributes, thereby be applicable to the optical communication network of any industry any type, there is very high versatility, avoid the change due to the data structure that more switching network causes.
The invention has the beneficial effects as follows:
Have that speed is fast, efficiency is high, aesthetic property is good, call simple, compatible strong, complete independence, do not rely on other software.This control does not need the independent configuration-system environment of client, also can be completely integrated among client's software environment, can't see any file of this control in client software finished product.
This control support target connects the technology with embedding OLE, so network node can be any complicated component object, can generate very complicated beautiful network topology, and can carry out network model and show and the schematic diagram drafting marking.The present invention solves that Networks of Fiber Communications topological diagram is drawn and a network modelling difficult problem, utilizes this control can generate the optical communication network figure of any many applications of friendly interface, beautiful support interactive function.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 foundation is of the present invention is that physical layer network topology is drawn schematic diagram;
Fig. 2 foundation is of the present invention is that logical layer network topology is drawn schematic diagram;
Fig. 3 foundation is of the present invention is that operation layer network topology is drawn schematic diagram;
Fig. 4 according to of the present invention be that clock chain circuit topology is drawn schematic diagram, the master clock line in this figure is one way link, standby clock line is unidirectional phantom line segments, main/stand-by clock line adopts the multilink that the walks abreast rendering technique that manually staggers;
Fig. 5 draws schematic diagram according to complicated OLE node topology of the present invention, this figure subnetwork node is Microsoft Visio object, between its Satellite and steel tower, be two parallel links that manually stagger, in the middle of the link of selected state, little black surround handle is that link drags distortion handle; The label character of this figure has adopted ole object; And the technology such as node zooming effect, node subscript effect have been demonstrated;
Fig. 6 draws schematic diagram according to network diagram of the present invention, and this figure has adopted ole object technology, has demonstrated three layers of label technology such as IP layer, SDH layer, WDM layer, shows the relation between three layers;
Fig. 7 is each modular structure relation of topological subsystem and key component attribute and method in the present invention;
Fig. 8 is the method for drafting schematic diagram that manually staggers of multiple parallel link between node in the present invention topology subsystem link module.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing and instantiation, the present invention is described in further detail.The present invention also provides a topological draw control, and this control has encapsulated three above large technical goals, comprising: the topological diagram of complicated support interactive function is drawn code; OLE node is drawn code; The parallel multilink drafting code that manually staggers; Defined the applying hierarchical data structure of physical layer, logical layer, operation layer, clock topological layer; Every class network element has been reserved 16 kinds of Custom Attributes, and defined and other element between the data structure that is mutually related, can be for client, these attributes can customize according to the concrete condition of different industries network.This control architecture model definition different node and link data structures, can effectively reduce software complexity and improve software development efficiency.
This control called after NetTopolDraw.lib, is a WINDOWS static library file, can seamless integration in client software, in client software, can't see any file of this control.Therefore it adopts pure C++ code to write, have that speed is fast, efficiency is high, compatibility is strong, independence advantages of higher, and this control does not need the independent configuration-system environment of client, do not rely on other software.This control encapsulation property is good, call simple, client only need call several interface functions in its software message processing function just can draw the network topology of any complexity, realizes like this dynamic modeling of network topology by the mode of message response, defines System Resource Tree and the property pages of oneself.Client also can generate based on this control the algorithm of oneself, simulation calculation area of optical telecommunication networks particular problem.This control provides the processing scheme of greatly simplifying simplification for optical communication network related platform software, client can be absorbed in energy on algorithm research, avoiding carrying out among the processing procedure of complex network modeling, is the special-purpose modeling control of a Networks of Fiber Communications.This control is applicable to most Networks of Fiber Communications, and integrated master data serializing code, especially for different nodal communitys, when adding logical links, client can add its acquiescence business automatically according to two end node devices concrete conditions, alleviates the workload of customer modeling.
The invention provides a kind of topological subsystem, in order to keep good encapsulation and independence, the principle that this subsystem must be followed is as follows:
(1) system only comprises drafting and display packing, does not comprise any resource file, and all resources are all externally written into and initialization in program, and system only represents external resource file in the mode of call number;
(2) system code adopts MFC class libraries to write, and all classes all need to support serializing;
(3) system resource is the five large classes such as node device, physical link, logical links, passage, business;
(4) every kind of resource has independently data structure and method for drafting thereof;
(5) all resources of system have unique title, do not allow to occur bearing the same name;
(6) there is not database associative operation and data structure thereof in system.
This topological subsystem is comprised of five large generic modules: topological operational module, link module, node module, channel module, business module; as shown in Figure 7; this chart understands relation and the hierarchical structure between these several large generic modules; every generic module all comprises draws part and is related to the large submodule of part two; the part of drawing mainly refers to the mapping operation parts such as modeling or external interface, interrelated relational data structure and the attribute of the main finger print interblock of relation part.Topology operational module is system call class, is responsible for processing with extraneous interface and all modelling operabilities, and other four generic module is system resource class, and all comprises three public attributes such as title, type, 16 reserved attributes.
Provide concrete function separately and the correlation thereof of five large generic modules below:
Topology operational module is drawn and is partly mainly external interface, comprise that response mouse is pressed, discharges, moved and topology element is chosen operation, this operation is also the basic process of network modelling, and the intermediate variable that topology drafting needs, Graphics Mode etc. are deposited all as the attribute of this submodule.Relation is partly deposited all topology elements, and the topology element here mainly refers to the example of other four generic module, and topology element is deposited all with the form of linked list array, a certain item that the transport layer in network stratified structure, operation layer, clock topological layer are this linked list array.
This module external interface operation and function thereof are as shown in table 1:
Table 1
| External interface operation | Function introduction |
| Left mouse button is pressed | Increase, choose topology element newly |
| Left mouse button is moved | Drag view, movement or convergent-divergent topology element |
| Left mouse button discharges | Physics, logic, business or clock chain circuit are completed |
| Select topology element | Topology element is in choosing drafting state |
This module Graphics Mode and function thereof are as shown in table 2:
Table 2
| Current Graphics Mode | Function introduction |
| Drag pattern | Drag topological view |
| Operator scheme | Selection, convergent-divergent, mobile topology element |
| Physical link | Add physical link, corresponding to transport layer |
| Logical links | Add logical links, corresponding to logical layer |
| Service link | Add service link, corresponding to operation layer |
| Clock chain circuit | Add clock chain circuit, corresponding clock topology |
| Node device | Add node device |
| Service channel | Add service channel |
This module topology element linked list array specifically stores content and map network layering is as shown in table 3:
Table 3
| Topology element linked list array | Map network layer |
| [0] node link | Share for each layer |
| [1] physical link | Physical layer topology |
| [2] logical links | Logical layer topology |
| [3] service link | Operation layer topology |
| [4] clock chain circuit | Clock topology |
As shown in table 3, in this module, defined the four large application layer taxonomic structures such as physical layer, logical layer, operation layer, clock topological layer, difference is effect as shown in Figure 1 to 4, and application layer can also can automatically switch as required in computational process in manual switchover.
Link module is drawn and is partly encapsulated drafting and the rendering attribute related data structures thereof of link self; operation comprises that multilink parallel drawing, deformation, selection, movement etc., rendering attribute comprise single-direction and dual-direction sign, protective emblem, angle, main body rectangle, shape sign, position rectangle etc.Be related to the passage array that part attribute comprises two ends node device, comprises, relational operation comprises route sign, loop sign etc.
The main attribute of a relation of link module and feature list thereof are as shown in table 4:
Table 4
This module multilink parallel drawing technology that manually staggers, as shown in Figure 8, be that an one way link from lower-left to upper right is drawn, this link has 3 operating grips, two end points that handle 1, handle 2 are link, and handle 3 is in link centre, for link is manually adjusted handle, with this handle of mouse drag, can make link automatically produce deformation, the drafting of the link on two node devices in common can being staggered like this, thus avoid multilink overlapping phenomenon that it is hard to tell.
In the present invention, all drawing elements all show its position and size in the mode of rectangle frame, and the conventional method that link is drawn is for to draw a line from its rectangle frame lower left corner, position to the upper right corner.In order to draw parallel link, link of the present invention also has an interior rectangle frame except position outer rectangular frame, interior rectangle frame is the main body rectangle frame of link, be responsible for the drafting of link major part, outer rectangle frame be mainly responsible for to be drawn the deformation part that both link ends is put its main body, therefore link method for drafting is line successively in the following order:
The outer rectangle frame lower left corner → interior rectangle frame lower left corner → interior rectangle frame upper right corner → outer rectangle frame upper right corner
In Fig. 8, offset distance d is that link is dragged the vertical range that departs from its linear position, and when offset distance is zero, link is by the straight line that is a standard, and this is the drafting mode of most of links, and when having multilink between node, its offset distance is by different.If there are two parallel links, an offset distance can be dragged as just, another offset distance drags as negative, draws out two perfect broken line links just so very attractive in appearancely, as master/backup clock link in dual link, Fig. 4 between Fig. 5 Satellite and steel tower is drawn.
The node module part of drawing encapsulates the operations such as the drafting of node device and selection, convergent-divergent, deformation, its drawing attribute mainly contains figure grade, whole story node label, shape etc., is related to that part attribute comprises that the link chained list, the node that are connected with node comprise the large class of passage chained list two.The design principle of this module is when node motion or convergent-divergent, and coupled all links all need to carry out corresponding movement or adjustment.
The main attribute of a relation of node module and function thereof are as shown in table 5:
Table 5
| Node module attribute of a relation | Function introduction |
| Link chained list | The all links that are connected with node |
| Passage chained list | The branch road that node comprises and line channel |
For envoy's dot pattern is more vivid and changeableization of type, the present invention supports the drafting of special OLE node, as the notebook in Fig. 4, steel tower, satellite node, and the arrow in Fig. 6, network layer frame and mark word thereof.OLE node is drawn and is adopted the OLE of Microsoft inline object technology, can embed the more complicated network nodes attractive in appearance such as VISIO object, equation editing.
Channel module is drawn and is partly encapsulated route demonstration and the blanking of passage, is related to that part attribute data is mainly passage standby usage route chained list and its business chained list comprising, and the carrying person of passage logical links is its another important property in addition.
The main attribute of a relation of channel module and function thereof are as shown in table 6:
Table 6
| Channel module attribute of a relation | Function introduction |
| Bearing link | The logical links of bearer path |
| Route chained list | The standby usage route chained list of passage self |
The business module part of not drawing, is related to the part packaging industry body property related data structure of attending to the basic or the fundamental, and mainly refers to carrying person---the passage of business.
According to specific exemplary embodiment, invention has been described herein.It will be apparent under not departing from the scope of the present invention, carrying out to one skilled in the art suitable replacement or revise.Exemplary embodiment is only illustrative, rather than the restriction to scope of the present invention, and scope of the present invention is defined by appended claim.
Claims (3)
1. a method for drafting for optical-fiber network topological diagram, is characterized in that comprising:
(1) draw node: in elected after the equipment of particular type, the optional position left button of clicking the mouse increases a network element device in topological diagram;
(2) draw physical link: after being switched to physical layer view, choose link to draw, left mouse button is drawn straight line between two node devices, represents physical link;
Article one, physical link corresponds to a physical fiber, and it is carried time slot or wavelength information after launching;
(3) draw service link and service display: after being switched to operation layer view, choose link to draw, left mouse button is drawn straight line between two node devices, represents service link;
Choose a service link, in right mouse button menu, increase a business, represent the business comprising in this service link, in its attribute form, can revise its association attributes, business route can the form with logical links be carried out overstriking and/or painted demonstration to it after calculating in logical view;
(4) rendering logic link and passage are shown: after being switched to logical layer view, choose link to draw, draw straight line, presentation logic link between two node devices with left mouse button;
Choose a logical links, increase a passage in right mouse button menu, represent the passage that this logical links comprises, passway is by can the form with physical link carry out overstriking and/or painted demonstration to it in Physical View after calculating;
(5) drawing clock chain circuit and clock shows: after being switched to Clock view, choose link to draw, between two node devices, left mouse button is drawn straight line, represents clock chain circuit;
The drafting of described node supports additions and deletions, copy, select, drag dynamic interaction function and state with convergent-divergent;
The drafting support target of described node connects and embeds OLE technology, the mark that utilizes this technology can draw complex network schematic diagram and be correlated with;
Additions and deletions, selection and locomotive function are supported in the drafting of described physics, logic, business and clock chain circuit, after node motion, and coupled all link automated movements position.
2. right to use requires a topological subsystem for the method for drafting of the optical-fiber network topological diagram described in 1, it is characterized in that:
Described topological subsystem is comprised of this five generic module of topological operational module, link module, node module, channel module and business module; Every generic module all comprises draws part and is related to the large submodule of part two; Physical layer, logical layer, operation layer, four kinds of application layer taxonomic structures of clock topological layer in described topological operational module, have been defined;
(1) applying hierarchical technology, described four kinds of application layers have network topology structure and correlation separately, and described optical-fiber network can carry out free switching between four kinds of application layers;
Routing iinformation that can painted display channel directly perceived in described physical layer;
Routing iinformation that can painted display business directly perceived in described logical layer;
(2) many resources of carrying in link can the staggered demonstration in the mode manually dragging: link can be in launching or merging phase, when link is during in deployed condition, many passage capable of beings that comprise in many business that many optical fiber, the service link wherein comprising in physical link comprises, logical links are clicked with mouse the mode that its mid-handle drags and are carried out staggered displaying.
3. topological subsystem as claimed in claim 2, is characterized in that providing particular optical network Resource Modeling Method in a kind of specific industry, and it follows following feature:
(1) utilize the various optical communication networks of control analog simulation every profession and trade of this subsystem architecture, and set up own network model, can be on this control basis integrated oneself the feature algorithm routine of client, the workload of minimizing network modelling;
(2) all optical-fiber network topology elements, comprise that the resource of node device, physical link, logical links, passage and business has all designed relevant bottom data structure, comprise Resource Properties and incidence relation, form the basis of network modelling;
(3) described topological operational module is system call class, is responsible for processing with extraneous interface and all modelling operabilities, and described link module, node module, channel module and business module are system resource class;
(4) system resource generic module all comprises title, type and 16 reserved attribute three major types public attributes, thereby be applicable to the optical communication network of any industry any type, there is very high versatility, avoid the change due to the data structure that more switching network causes.
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| CN101222352A (en) * | 2007-01-11 | 2008-07-16 | 中兴通讯股份有限公司 | Topological diagram indication method in telecommunication network guard system |
| CN101217410A (en) * | 2008-01-07 | 2008-07-09 | 杭州华三通信技术有限公司 | A network topological structure exhibition method and device |
| CN101916320A (en) * | 2010-09-03 | 2010-12-15 | 烽火通信科技股份有限公司 | Method for graphically representing network topological objects and network topological object relationships in network planning |
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