CN1547357A - Dynamically constructed network management method - Google Patents
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Abstract
The invention discloses a model and method for a kind of dynamic network management, the model uses the managing function as the function of the managed object, when the managed object is distributed, there generate and arrange the managing functions, it improves the extensibility and dynamic distribution performance of current network managing system effectively. In the invention, the network protocol, the network service and the network application are considered as the network soft device, which uses the same managing method with the hardware device, thus it realizes the integral management of network device, service and application. The invention proposes the correlation between the managing function and the managed object, the dynamic distribution of the managing function, the managing function extension based on register and the dynamic construction of the managing interface, it proposes the system structure including managing centre, middle managing joint, data collecting joint and managing client terminal, and an original model of the network managing system is realized in the Linux and Windows operation system with Java language.
Description
Technical field
The present invention relates to a kind of network management, specifically be meant a kind of integrated management, improve the extensibility and the dynamically deployment property of network management system effectively the network equipment, network service, procotol, network application.
Background technology
Along with the rapid expansion of network size, topology of networks is increasingly sophisticated, and the object of being managed is of a great variety, and quantity is huge, and the deployment of management function is more and more difficult; The various device access network of different vendor, the protocol version that these equipment is supported has suitable difference, in order to protect existing investment, must allow the coexistence of new equipment and existing device, and this makes the network equipment more and more present the various characteristics of isomery; Development along with emerging technologies such as the active net of the intelligent network of field of telecommunications, computer network field and grids, the business of moving on the network and use constantly active development and deployment, how effectively management being implemented in the network application of dynamic change, is to adapt to above-mentioned technical development active demand.The network management of current popular is based on a certain specific webmaster protocol suite such as snmp protocol, the management of its network-oriented equipment, adopt Client, ask/reply or polling mode by acting on behalf of between the Agent (server) on manager Manager (client) and the equipment, realize collection and inquiry the status data of the network equipment.Its basic architecture is by NMS (comprising Manager), Agent, and MIB, SNMP four parts are formed (seeing shown in Figure 1).The defective of legacy network management is clearly, mainly shows as:
1. owing to be centralized management, the manager of network management system (Manager) must become bottleneck;
2. the way to manage of poll is serious to the waste of resources such as the network bandwidth, space, data buffer zone, and real-time is poor, efficient is low;
3. equipment oriented is difficult to adapt to the network of large-scale, isomery, dynamic change and the regulatory requirement of miscellaneous network service and application.
Shortcoming at above-mentioned traditional network management, must propose a kind of can to network and network application implement efficient, flexibly, the new network management model of the management that is easy to expand, solve its implementation, break through the restriction of traditional network management on management mode and management function.
Summary of the invention
The defective that management exists at existing network the present invention proposes the method that a kind of dynamic tectonic network is managed.Dynamically the network management system of structure management method realization can be with the variation development of network architecture, agreement, service and application, dynamically adjust and develop self function, the network equipment and network application are implemented effective integrated management, improved the extensibility and the dynamically deployment property of network management system.
The network management of a kind of dynamic structure of the present invention, this method are carried out the dynamic management of Network Management Function by the device that contains network management system, information bank, the network equipment; Said dynamic management is realized that by dynamic webmaster dynamically webmaster is made of administrative center, intermediate management node, data acquisition node and administrative client, and this dynamic webmaster comprises the following steps:
(a) administrative center by with administrative client, mutual with the intermediate management node, realize that management code is dynamically distributed and management function is dynamically constructed and dynamically construct at the interface and the dynamic expansion of network management system;
(b) the intermediate management node obtains the management information of network of relation state and network software by data acquisition node, realizes one's respective area related management function;
(c) data acquisition node obtains the needed information of management from managed object, and sends information to the intermediate management node;
(d) administrative client is finished submission, download, the operation to the corresponding management agency, by communicating by letter with the execution management code and with administrative center at intermediate management node and data acquisition node deploy, realize management function, the different regulatory requirements according to different user provide the personalized user interface simultaneously.
Described dynamic network management method, its administrative center provides the control to dynamic webmaster.
Described dynamic network management method, its managed object comprise procotol, network service, network application, and the network equipment.
The advantage of the dynamic tectonic network management method of the present invention:
1. can effectively carry out integrated management to the network equipment, network application, service and procotol.By relevant managed object is described according to standard definition, can realize the modes identical with managing network device such as network application, service and procotol are managed; 2. can effectively carry out dynamic expansion to managed object, management function and then management system.By visual interface being provided for keeper, equipment vendors, application developer etc., and utilize the on-the-flier compiler expansion technique of MOS, can make managed object set, managed object acquisition methods etc. expand accordingly, thus expansion management function and management system; 3. can effectively dynamically dispose new management function.Utilize the Active Networks technology, can implement effectively to dispose, to realize the effective management of management system managed object to the Network Management Function of new expansion; 4. support the multiple network way to manage.Dynamically the network managing mode based on Web had both been supported in the network management of structure, also supported the network managing mode of client/server commonly used, also supported the distributed network management mode; 5. two kinds of network management proxy deployment way have been defined.A kind of downloading mode that is based on code, under this mode, passing to what comprise in the message of intermediate management node is the URL address at management code place, the intermediate management node can be according to this URL automatically with this administration agent downloading-running; Another mode is a bag inline code mode, and itself just comprises executable code in the bag; 6. with traditional be compatible based on the snmp management pattern.Traditional snmp management pattern is a kind of special application mode of the network management of dynamic structure.
Description of drawings
Fig. 1 is a legacy network managerial structure schematic diagram.
Fig. 2 is a dynamic tectonic network managerial structure schematic diagram of the present invention.
Fig. 3 is an administrative center of the present invention structural representation.
Fig. 4 is an intermediate management node structure schematic diagram of the present invention.
Fig. 5 is a data acquisition node structural representation of the present invention.
Fig. 6 is an administrative client structural representation of the present invention.
Fig. 7 is the syntax graph of managed object set of the present invention (MOS).
Fig. 8 is that relation mechanism of the present invention is set up schematic diagram.
Fig. 9 is a managed object on-the-flier compiler module diagram of the present invention.
Figure 10 is a session manager schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
In the present invention, managed object is meant the network equipment (referring to provide the hardware device of operation in carrying out network interaction) and network software.The network software is meant procotol, network service and the network application in network.
Dynamic tectonic network management method in the present invention is that the network software is adopted with the same way to manage of the network equipment, thereby realizes integrated management, has effectively improved the extensibility and the dynamically deployment property of network system.
In the present invention, the management function in the dynamic webmaster is proposed to characterize with the form of managed object function.
The network management of a kind of dynamic structure in the present invention, this method are carried out the dynamic management of Network Management Function by the device that contains network management system, information bank, the network equipment; Said dynamic management is realized that by dynamic webmaster dynamically webmaster is made of administrative center, intermediate management node and data acquisition node, and this dynamic webmaster comprises the following steps:
(a) administrative center by with administrative client, mutual with the intermediate management node, realize that management code is dynamically distributed and management function is dynamically constructed and dynamically construct at the interface and the dynamic expansion of network management system;
(b) the intermediate management node obtains the management information of network of relation state and network software by data acquisition node, realizes one's respective area related management function;
(c) data acquisition node obtains the needed information of management from managed object, and sends information to the intermediate management node;
(d) administrative client is finished submission, download, the operation to the corresponding management agency, by communicating by letter with the execution management code and with administrative center at intermediate management node and data acquisition node deploy, realize management function, the different regulatory requirements according to different user provide the personalized user interface simultaneously.
Dynamically the network management of structure is with the function of management function as managed object, dynamically generates and dispose corresponding management functions when managed object is disposed.
In order to realize integrated management to managed object, network management proposed by the invention is regarded network application or service as in the network software, the generation of a kind of network application or service and deployment, be equivalent to a new software access network, network management system can detect the access of new equipment automatically, dynamic structure corresponding management functions, thus realize integrated management to the network equipment and network service, application.
To the function of the managed object in the dynamic structure be described below.
A network management system DCNMS who dynamically constructs can be expressed as one hexa-atomic group
DCNMS＝{MO，MF，MG，MU，f，g}。Wherein:
MO: the set of managed object is designated as MO={mo
i/ i=1,2 ...; Mo is a managed object, comprises Internet resources such as network service, application, agreement, topology, main frame and other hardware devices;
MF: the dynamically management function of structure set is designated as MF={mf
j/ j=1,2 ...; Mf is the dynamically management function of structure of network management system;
MU: user's set of management system is designated as MU={mu
k/ k=1,2 ...; And represent that with mu (mf) user mu carries out the sequence of operations of management function mf;
MI: the dynamically administration interface of structure set is designated as MI={mi
l/ l=1,2 ...; Mi is the dynamically administration interface of structure of network management system;
F: be between administration interface and leading subscriber and the management function, i.e. MI and MU, a kind of functional relation between the MF.This relation reflected administration interface will along with the difference of leading subscriber, management function and leading subscriber to the execution of management function and dynamic change.Just for MI, MU, MF has:
mi
l＝f(mu
k，mf
j，mu
k(mf
j))
Mi wherein
l∈ MI, mu
k∈ MU, mf
j∈ MF, j, k, l ∈ N.
G: be between management function and the managed object, i.e. a kind of functional relation between MF and the MO.This relation has reflected that Network Management Function will change and dynamic change along with managed object.Just for MF, MO has:
mf
j＝g(mo
i)
Mf wherein
j∈ MF, mo
i∈ MO, i, j ∈ N.
The deployment model of above-mentioned dynamic tectonic network management system can be expressed as four-tuple { AN, EE, AM, a h}.Wherein:
AN: the set of active node is designated as AN={an
i/ i=1,2 ...;
AM: the set of the administration module that can dynamically dispose is designated as AM={am
j/ j=1,2 ...;
EE: the set of administration module execution environment is designated as EE={ee
k/ k=1,2 ...;
H: be the mapping relations in the Active Networks environment, i.e. EE, AN, a kind of mapping relations between the AM.On any active node, all there is its execution environment for any administration module that can dynamically dispose in its expression.
Just for
Have:
ee
k＝h(am
j，an
i)
From the description of above-mentioned model as can be seen: on the one hand, by computing f, administration interface becomes the function of leading subscriber and management function, and administration interface will be carried out the variation and the dynamic structure of management function along with different leading subscribers, has embodied the personalization and the dynamic of administration interface; On the other hand, by computing g, management function becomes the function of managed object, be that management function will dynamically be constructed along with the variation that comprises managed objects such as equipment, application, agreement, the node that the administration module that can dynamically dispose and participate in manages managed object is dynamic expansion along with the renewal of the difference of leading subscriber and managed object, thereby expansion management function dynamically, this has embodied the relevance of management function and managed object and the extensibility of management function.And these characteristics described above are based on all that deployment model realizes, just by computing h, have guaranteed that management function can dispose dynamically, carry out under the support of Active Networks technology.
To be described respectively the component parts in the dynamic structure below.
1, administrative center
Administrative center is top as system, and the support to the management function of whole network management system is provided, and comprises generation, the maintenance and expansion of management code, application model, managed object set, the management of the generation of administration interface and user's registration etc.By mutual with administrative client and intermediate management node, code is dynamically distributed, management function is dynamically constructed, dynamically construct at the interface and the dynamic expansion of system.Administrative center partly is made of management server, code server, application model storehouse, managed object set, interface generator, registration manager etc., as shown in Figure 3.Wherein management server comprises www server, database server etc., for network management system provides infrastructural support.
Code server is used for storage and managenent function code section, to use the management function that generates according to different services and distribute management code to corresponding management node, possesses corresponding security mechanisms, by authentication, digital signature, encryption, based on role's comprehensive means such as control of authority, strengthen the fail safe of code structure, distribution.
The application model storehouse is used for the pattern that storage and managenent is used, application model is the formalized description to application and service, use and to set up corresponding pattern storehouse by analyzing typical network application and management, find wherein regularity and the mechanism of dynamic expansion, realize using dynamically related with management.
Managed object set provides the definition of managed object and description, simultaneously by its produce with manage related.Managed object set adopts the structure of similar MIB, and with the MIB storehouse compatibility of traditional network management, it possesses following contents: to the description of the relevant managed object of procotols such as IP, TCP, UDP, RSVP, ICMP, IGMP; Description to the relevant managed object of hardware device such as from the network topology to the main frame; Description to the relevant managed object of service, incident and system-level application.Generate and the expansion managed object set by dynamic compiling, and realize expansion with the related and system that manages by visit to it.
Interface generator is finished the dynamic structure of subscriber administration interface.Provide content different interfaces at network manager, equipment vendors, application developer and domestic consumer, and along with the dynamic change of application and service generates corresponding administration interface at any time.
Registration manager managing users registration and related registration information, and provide extension mechanism at user's level for system.
The workflow of administrative center is roughly as follows:
1. the user is at the administrative client access management server and send application for registration, finish registration by the information interaction between management server, registration manager and the administrative client, download administrative client agency (Agent) program by management server from code server simultaneously;
2. the user is at administrative client login management server, management server produces this user's administration interface according to user's concrete identity by interface generator and presents at administrative client, and agency (Agent) program that downloads to administrative client simultaneously is activated;
3. the user proposes management application request by the Web page to management server at administrative client, and management server obtains to provide for the user management function information of management service by visit managed object set and application model storehouse;
4. management server and administrative client and intermediate management node communication, search the related management function information, directly call correlative code if the management code that this management function is relevant has been present on the management node, download code by code server to the intermediate management node as not existing then by data acquisition program;
5. the intermediate management node will be passed to management server by the management data that management code operation obtains, and by finishing demonstration by interface generator at administrative client after the management servers process, thereby finish management service.
2, intermediate management node
The intermediate management node obtains the management information of network of relation state and application and service on the data acquisition node, realizes that one's respective area related management function also provides the local management interface.Under administrative center indication, the intermediate management node possesses and certain network parameter is set to change the function of network state, realizes the dynamic characteristic and the distribution character of network management system.The structure of intermediate management node as shown in Figure 4, its main member is local node manager and active management other execution environment (active management is acted on behalf of EE), message handling device, active code manager, task manager, local interface generator etc.
Message handling device receives from administrative client or the administrative center message relevant with managed object, according to the type of these message message is passed to active code manager or task manager then.In native system, message mainly is divided into two classes: a class is an event message, and a class is a management code message.
The active code manager receives and handles management code message, comprise storage, the maintenance of download, installation and the management code of management code, possesses corresponding security mechanisms simultaneously, by authentication, digital signature, encryption, based on role's comprehensive means such as control of authority, strengthen the fail safe of links such as code distribution, loading, execution.
Task manager receives, the storage event message, and dependent event is handled.
The relevant information that local interface generator is used according to task manager, active code manager and management generates the administration interface of one's respective area.
Web server is provided with for the dynamic structure of realizing cross-platform management and management function.
The active management other execution environment is that the operation of acting on behalf of for active management specially designs.The intermediate management node adopts the active node technology of Active Networks, and active management is acted on behalf of in the administration agent execution environment that can dynamically be deployed to each active node and moved.The active management agency utilizes the management interface of node operating system and managed object set, realizes the dynamic structure to Network Management Function.Because the existence of active management other execution environment, the user just can develop the administration agent that is fit to oneself according to the needs of management, is deployed to then on the management node, carries out corresponding management functions.Possesses corresponding security mechanisms in the execution environment.
The workflow of intermediate management node is roughly as follows:
1. receiving management client-side management function register and communicate by letter with administrative center and to carry out the inquiry of related management function information;
2. the management code message of sending according to the administrative client that receives is to administrative center's appropriate address download management code, and transmission correlative code or event message;
3. according to the information that obtains from administrative center, by expanding relevant managed object set and managed object acquisition method alternately with administrative center, data acquisition node;
4. communicate by letter with administrative client, data acquisition node to obtain corresponding managed object information and to submit to administrative center;
5. submit the local management interface to according to administrative client or administrative center's instruction.
6. the management code message of sending according to the administrative client that receives is deleted corresponding management code, and sends correlative code or event message, finishes management function.
3, data acquisition node
The managed object set definition that data acquisition node is supported according to equipment, application, service etc. obtains the needed information of management from appointed equipment, application server or administrative client, and sends information to the intermediate management node.The structure of data acquisition node as shown in Figure 5, its main member is acquisition node manager and management interface, wherein
Security manager provides system's corresponding security mechanisms, by authentication, digital signature, encryption, based on role's comprehensive means such as control of authority, strengthens the fail safe of links such as code distribution, loading, execution.
The interface that data acquisition unit provides by managed object set obtains management and uses needed management information.
Managed object set on the data acquisition node can be expanded along with the expansion of managed object set in the administrative center dynamically, and it provides interface for data acquisition unit, and provides storage format for data management system.
Data management system is stored the original management information that collects and relevant processing according to the form of managed object set definition.
Management interface comprises to relevant managed objects such as equipment, application and to two class interfaces of tension management node.Realization from managed object obtain management information data and with information, the data interaction of tension management node.
The data acquisition node workflow is roughly as follows:
1. obtain the extended method of managed object set and data acquisition with the intermediate management node communication;
2. on-the-flier compiler managed object set and dynamic expansion data acquisition program;
3. obtain corresponding management information alternately with relevant managed object and administrative client;
4. submit to management information to give the intermediate management node, to finish management function.
4, administrative client
Administrative client is automatically downloaded the Management Agent that resides in this locality by the user after registration and the user interface of the personalization that presents for different user is formed.Administrative client by with intermediate management node, data acquisition node and administrative center's interactive maintenance event message and relevant management information, realize management function, provide user interface at different user with different regulatory requirements simultaneously.Structure chart as shown in Figure 6.
The workflow of administrative client is roughly as follows:
1. the user finishes the registration correlated activation at administrative client Access Management Access center, and from administrative center download management Agent to administrative client;
2. the management server at user login management center is opened and own identity and the corresponding administration interface of authority, and Management Agent is activated simultaneously;
When 3. the application that need manage of user and service started, Management Agent sent relevant information to administrative center, and request management center is organized and coordinated association, management function is carried out and the dynamic task such as structure of administration interface;
4. manage function register to the intermediate management node, and send management code message;
5. by with relevant managed object, data acquisition node, intermediate management node and administrative center's communication interaction management information, finish management function.
To be described managed object in the dynamic structure management method and the related of management function below.
Managed object set (MOS)
The relation mechanism of management function and managed object adopts the thought of managed object set MOS (Managed Ob jects Sets).MOS provides the definition of managed object and description, by dynamic compiling generation and diffused mos, and by visit realization and management function related to it.
The formalized description of MOS
The thought of MOS is derived from the management information bank MIB (Management InformationBase) of legacy network management.MOS provides the definition and the description of the managed object (comprising equipment, application and service etc.) that dynamic tectonic network administrative institute is related to, and network management system generates and diffused mos by dynamic compiling, and by the visit to it realize with manage related.The basic managed object that network management system relates to except the define grid management, dynamic expansion interface also by formulating relevant management regulation and providing convenience, make equipment manufacturers and application developer can be at any time in system, add new, by the managed object of standard definition, realize the dynamic structure and the autgmentability of system.
MOS adopts the OO thought of similar SMIng, uses grand reference format with unanimity such as OBJECT-TYPE to define managed object according to the ASN.1 standard of standard, one group of managed object of being correlated with is brought into just formed a MOS file in the module.We portray its basic structure with syntax graph, and form as shown in Figure 7.
The composition of MOS
Managed object set possesses following content at present: to the description of the relevant managed object of procotols such as IP, TCP, UDP, RSVP, ICMP, IGMP, RTP; Description to the relevant managed object of hardware device such as from the network topology to the main frame; Description to the relevant managed object of service, incident and system-level application.Wherein the managed object of relevant managed object description of hardware device and part agreement, application is described the relevant mib file that has loaded existing RFC definition, and made suitable expansion and modification, guaranteed managed object set and MIB compatibility like this based on snmp protocol bunch.
System provides visual interface for the application developer, the application developer can add new managed object description document of using and associated management function module according to consensus standard easily, system can load corresponding module by the on-the-flier compiler to these files in needs, thereby reaches the expansion related with managed object of the management function of new application.
The foundation that managed object is related with management function
The realization of relation mechanism is finished jointly by administrative center, intermediate management node, data acquisition node, administrative client, and the collection of the mutual realization management information by data acquisition node and administrative client, application server and the network equipment.The schematic block diagram that relation mechanism is realized as shown in Figure 8.
Relation mechanism is realized by following step
During the application start 1. managed, the administration agent on the administrative client sends relevant information to administrative center, and request management center is organized and coordinated association, management function is carried out and the dynamic task such as structure of administration interface;
2. after administrative center receives the information that administrative client sends, by mutual with intermediate management node and data acquisition node, the relevant information of acquisition administration agent and managed object set on intermediate management node and data acquisition node, managed object set to the needs expansion is expanded, and download required administration agent, the intermediate management node on the right need be downloaded corresponding administration agent in this schematic diagram;
3. management function information and other relevant informations of notifying administrative client to register;
4. the management node registered to needs of administrative client manages the function information registration, and administrative client need be to the intermediate management node registration on the right in this schematic diagram;
5. the intermediate management node is communicated by letter with data acquisition node, by data acquisition node according to the related object of management function and managed object set equipment, application node acquisition management information to required collection.
The management information of using has two classes, and a class is system-level, just can call the information that obtains by registration table or system function, and not needing to use provides; The another kind of application developer of needs provides correlation function and provides interface according to the definition format of standard in application.
Managed object is dynamically compiled detailed
So-called managed object on-the-flier compiler is meant the dynamic support that adds managed object MOS module when network management system is moved.Specifically be exactly when in network, finding the new network equipment and using, just in network management system, increase these equipment and use the MOS module that is realized; When finding that a class network equipment and application no longer exist in network, just from network system, remove support to this kind equipment or the MOS module that application realized.Like this, the MOS module that exists in the network management system for management in this network equipment and use all be absolutely necessary, promptly realized the extensibility of network management system, saved calculating and storage resources valuable in the network management system again.The theory structure of managed object set on-the-flier compiler as shown in Figure 9.
When network management system had just begun to start, dynamically the MOS compiling was what to operate according to following flow process:
1. the MOS master control is at first called the internal data structure management, the data structure that initialization system need be used when operation;
2. the MOS master control is called the MOS file management, obtains the next MOS module information that needs loading, comprises MOS filename and corresponding module name in this information.If the module information that obtains be empty, show that all these MIB modules that should load all successfully load, then forward the to and 6. go on foot;
3. in Module management, check whether loaded this MOS module in the network management system,, then forwarded for the 2. step to, continue the next possible MOS file of compiling if load according to module name; If do not load this MOS module in the network management system as yet, then continue next step operation;
4. according to the file name information that comprises in this MOS module information, call Module compiling management it is compiled.If in the process of compiling, find that this module introduced other the MOS module that does not load as yet in the system, then at first preserve the compiling scene of this module, interrupt compiling to this module.But turn to the module that those front MOS that does not load as yet compilings are interrupted to need therefrom to introduce the text agreement again, managed object, the module of object identifier etc. compiles, after successfully being compiled in the network management system these MOS modules, recover the compiling scene of preservation just now, continue that module of being forced to interrupt the MOS compiling of compiling because lack suitable MOS module in the system;
5. after the MOS module successfully compiled, all managed objects all were kept in the interim memory space of managed object that system creates in initialized process in this MOS module.Next call MOS tree management by the MOS master control, being kept at managed object in the interim memory space according to they object identities separately, as the name word location to or integer sequence, join during MOS sets.At this moment, this MOS module is being compiled in the network management system of success, next forwarded for the 2. step to, continues remaining MOS module of compiling;
6. the MOS compiling is finished.Network management system brings into operation, and begins equipment in the network and application implementation management.
In the process of network management system operation,, then need to rely on dynamic MOS compiling management that these equipment and the MOS module that application realizes are compiled in the network management system dynamically if found the new network equipment and application.Dynamically MOS compiling management is that a daemon thread as network management system moves, every one regular time the gap, whether check has new MOS module to need to load in the network.When finding to have new MOS module to load, necessary on-the-flier compiler parameter at first is set, one of them most important parameter is exactly the position that the MOS file that needs loading is obtained in the MOS file management; Dynamically the MOS master control is called in the MOS compiling then, and beginning is dynamically MOS compiling once.The MOS master control just from top the 2. the step bring into operation, the MOS module information that the different place of operation MOS compiling is exactly this moment by MOS file management acquisition when starting with network management system is the new MOS module that system needs dynamic load.After once dynamically the MOS compiling is finished, just loaded these new MOS modules in network management system, this system just can provide support to the management of these network equipments that increase newly and application.Dynamically dynamic parameter is reset in mib compiling, the more new situation of equipment and application in the continuation monitoring network.
To be described the management method of administration agent in the dynamic structure management method below.
In the network management method of dynamically constructing, normally and efficiently move in order to guarantee administration agent, and they are effectively managed, notions such as session have been proposed.
Define 1 administration agents from disposing, using the whole process of cancelling and be called a session, be designated as SID.Session each time all has a unique ID to identify this session.
The object that loads that definition 2 utilizes the code definition of administration agent to form is called the administration agent object, is recorded as SOSID.
The administration agent execution environment is undertaken by session the management of administration agent, and it comprises the foundation of session, management functions such as maintenance and dismounting.
Session manager is the core component of whole active management other execution environment, and it is responsible for the management of session, i.e. the foundation of session, maintenance and dismounting.The structure of session manager as shown in figure 10.
This parts reception of MADP receiver is transmitted the MADP that comes from ANEP (Active Networks tunneling) the agreement grader on the active node and is wrapped, and it is transmitted to the MADP grader.
These parts of MADP grader are at first finished the analysis of MADP agreement.According to the result of MADP protocal analysis, the information of session management information storehouse (SMIB) and the result of safety certification, different MADP bags is forwarded to different places then.
The session management request that this parts receiving management of session management information server (SMIS) agency sends realizes the management of session, comprising the requests such as foundation, inquiry and dismounting of session.
These parts of session management information storehouse (SMIB) are used for depositing the relevant information of each session.This information comprises information such as session id, session settling time, session teardown time and session status.
These parts of administration agent target cache (MAOC) are used for the storage management agents object.When this node need use certain administration agent, can at first in the administration agent target cache, search, if exist, just can at first from buffer memory, obtain, and needn't download from the management code server, this has improved the deployment speed of administration agent effectively, has saved the network bandwidth.
These parts of administration agent loader (MAL) are realized the loading of administration agent, with the administration agent object-instantiated, and move this example.
To be described the dynamic construction method of administration interface in the dynamic structure management method below.
The dynamic structure of administration interface mainly comprises two aspects: the dynamic structure of interface form, the i.e. dynamic generation at interface; The dynamic structure of interface content, what promptly interface information showed dynamically updates and personalization.
The method that system adopts database and configuration file to combine realizes the dynamic structure of administration interface form.With respect to configuration file, adopt the database technology fail safe stronger, manage that standard, function are also more powerful more; Adopt the method for configuration file then more convenient flexibly conversely.Administrative center is primarily aimed at user's difference and dynamically constructs administration interface, and the interface has relative stability, also needs more strong functions support, so its interface generates the main database technology that adopts; The intermediate management node is primarily aimed at the different application of different user execution and dynamically constructs administration interface, change relative complex, adopt the method for configuration file can better realize its dynamic characteristic, the security mechanism that the node of intermediate management simultaneously adopts can effectively be improved the fail safe to the configuration file operation.
When new management function is dynamically disposed, the relevant information that corresponding management is used is registered to the local node manager of intermediate management node and the management server of administrative center, the local node manager of intermediate management node is made amendment by the configuration file that local interface is generated parameter, realizes the dynamic structure of management application interface content; The management server of administrative center is realized the dynamic structure of management system interface content by the database median surface being generated the related amendments of parameter.Simultaneously, system provides different interface content display strategies according to different user and different management function.
The local node manager of intermediate management node is that Applet by a TreeView realizes to the dynamic structure of management application interface, and TreeView realizes according to a configuration file when generating administrative directory, configuration file is made up of many records, and wherein the formal definition of each bar record is as follows
NodeID，ParentID，Laryer，IsExpand，IsLeaf，Disp，Icon，Urlhref，FrameName，Audio
The NodeID node identification;
ParentID father node sign;
The Layer node be positioned at which the layer, ground floor be designated 1;
Whether the IsExpand node launches (1-launches, and 0-does not launch);
Whether IsLeaf is leaf node (1 is not, the 0th);
Disp node literal explicit identification;
The Icon node icon shows, ignores with "-" expression;
Urlhref clicks the URL address that this node shows, ignores with "-" expression;
FrameName represents that the content of Urlhref is presented at that Frame the inside, ignores with "-" expression;
The sound that shows when Audio clicks this node is ignored with "-" expression.
In the local node manager of intermediate management node, local interface generator is utilized the information in message handling device and the task manager, dynamically generates the configuration file of TreeView, like this, dynamically constructs with regard to having realized administration interface very easily.
The management server of administrative center is to realize by the operation to a TreeView table in the database to the dynamic structure at management system interface.The implication of each field of TreeView is as follows
The NODEID node ID is represented this node location, level;
TITLE node literal explicit identification;
Urlhref clicks the URL address that this node shows;
The ICONNAME node icon shows.
By the dynamic structure that on-the-fly modifies and visit realization management system interface to the TreeView table.
Claims (9)
1, a kind of network management of dynamic structure, this method are carried out the dynamic management of Network Management Function by the device that contains network management system, information bank, the network equipment; Said dynamic management is realized that by dynamic webmaster dynamically webmaster is made of administrative center, intermediate management node, data acquisition node and administrative client, and this dynamic webmaster comprises the following steps:
(a) administrative center by with administrative client, mutual with the intermediate management node, realize that management code is dynamically distributed and management function is dynamically constructed and dynamically construct at the interface and the dynamic expansion of network management system;
(b) the intermediate management node obtains the management information of network of relation state and network software by data acquisition node, realizes one's respective area related management function;
(c) data acquisition node obtains the needed information of management from managed object, and sends information to the intermediate management node;
(d) administrative client is finished submission, download, the operation to the corresponding management agency, by communicating by letter with the execution management code and with administrative center at intermediate management node and data acquisition node deploy, realize management function, the different regulatory requirements according to different user provide the personalized user interface simultaneously.
2, dynamic network management method according to claim 1, it is characterized in that: administrative center provides the control to dynamic webmaster.
3, dynamic network management method according to claim 1 is characterized in that: said managed object comprises procotol, network service, network application, and the network equipment.
4, dynamic network management method according to claim 1 is characterized in that: said Network Management Function is the function of managed object set, its expression-form: DCNMS={MO, and MF, MG, MU, f, g}, wherein,
MO: the set of managed object is designated as MO={mo
i/ i=1,2 ...; Mo is a managed object;
MF: the dynamically management function of structure set is designated as MF={mf
j/ j=1,2 ...; Mf is the dynamically management function of structure of network management system;
MU: user's set of management system is designated as MU={mu
k/ k=1,2 ...; And represent that with mu (mf) user mu carries out the sequence of operations of management function mf;
MI: the dynamically administration interface of structure set is designated as MI={mi
l/ l=1,2 ...; Mi is the dynamically administration interface of structure of network management system;
F: be between administration interface and leading subscriber and the management function, i.e. MI and MU, a kind of functional relation between the MF;
G: be between management function and the managed object, i.e. a kind of functional relation between MF and the MO.
5, dynamic network management method according to claim 1 is characterized in that: said management code occurs with active management agency's form, when managed object is disposed, downloads on the corresponding management node, activates and carries out, and starts corresponding management functions.
6, dynamic network management method according to claim 4 is characterized in that: said active management agency's management is to adopt session technology.
7, dynamic network management method according to claim 1 is characterized in that: among the managed object set MOS that said managed object is abstract, be mapped to standard definition.
8, dynamic network management method according to claim 7, it is characterized in that: the relation mechanism of management function and managed object set adopts managed object set MOS, MOS provides the definition of managed object and description, by dynamic compiling generation and diffused mos, and by visit realization and management function related to it.
9, dynamic network management method according to claim 1 is characterized in that: the method that administration interface adopts configuration file to combine with database realizes its dynamic structural property.
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| CN100426756C (en) * | 2006-10-13 | 2008-10-15 | 华为技术有限公司 | Network management system for integrative supervision and management of application software system and host resource |
| CN1750482B (en) * | 2005-11-07 | 2011-07-20 | 烽火通信科技股份有限公司 | Managing device and its method for centrally and uniformly managing device |
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| JP2001034556A (en) * | 1999-07-26 | 2001-02-09 | Nippon Telegr & Teleph Corp <Ntt> | Dynamic network managing method |
| US6529515B1 (en) * | 1999-09-30 | 2003-03-04 | Lucent Technologies, Inc. | Method and apparatus for efficient network management using an active network mechanism |
| CN1442800A (en) * | 2002-03-05 | 2003-09-17 | 友讯科技股份有限公司 | Dynamic SNMF network equipment |
| CN1317849C (en) * | 2002-03-30 | 2007-05-23 | 中兴通讯股份有限公司 | Network management system and method |
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| CN101399708B (en) * | 2007-09-28 | 2012-04-04 | 华为技术有限公司 | Method and device for establishing network performance model |
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| CN102142980A (en) * | 2010-10-27 | 2011-08-03 | 华为技术有限公司 | Method and gateway for remotely managing sensor network topology |
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