CN101179435A - Method of active push network management event and network management system - Google Patents
Method of active push network management event and network management system Download PDFInfo
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- CN101179435A CN101179435A CNA2007101706657A CN200710170665A CN101179435A CN 101179435 A CN101179435 A CN 101179435A CN A2007101706657 A CNA2007101706657 A CN A2007101706657A CN 200710170665 A CN200710170665 A CN 200710170665A CN 101179435 A CN101179435 A CN 101179435A
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Abstract
The invention proposes a network management system for active pushing network management event. A user interface is set on a client browser and the management event receives the agent and the reverse Ajax client; a Web server is provided with a reverse Ajax server and the management event sends the agent and a network management functional module; the management event is sent through the http connection built between the reverse Ajax client and the reverse Ajax server, the agent is received through the management event and the management event sends the agent so as to manage the sending of the event, thus assuring that various browser clients can receives the specific event notification that the network management functional module sends as early as possible without loss to a great extent and delivering stronger robustness on the premise that the implementation cost of the server is lower.
Description
Technical field
The invention belongs to the network management technology field, specially refer to the method that server active push Admin Events in the network management system is communicated to client.
Background technology
In network management system, each management function module produces or receives the event notification of various relevant management objects through regular meeting.The type of event notification includes, but is not limited to following several:
Object Creation (object creation)
Object deletion (object deletion)
Property value changes (attribute value change)
State changes (state change)
Alarm (alarm)
These announcements in time reflect the change of the management information such as state, attribute of management object.The a plurality of management function modules of associated other can be made corresponding action without interfering with each other, concomitantly after receiving these asynchronous notices, thereby improve the operational efficiency of network management system integral body.NM client for the user presents the current real conditions of management object, should be observed these incidents in real time as the front-end functionality module, and in time refreshes corresponding interface display content according to event notification.On the NM client browser, show network element/network element group topological tree, topological diagram and alarm announcement tabulation, when network element or increase of network element group or deletion, have Object Creation/object deletion announcement and produce＜network element/network element group topological tree in time to adjust the node content that its layering shows; When the alarm status of network element/network element group changes, have alarm announcement and send＜topological diagram the Icon Color of going up corresponding element should in time change.
Yet in the network management system that adopts Browser/Server (browser/server) framework, adopt the http protocol communication between Browser and the Server, with the client that form web page is opened, monitor and receive these Admin Events and announce, certain difficulty is often arranged:
In traditional Web technology, synchronous mode is adopted in http request and response.Customer terminal webpage after each request meets with a response, full page content update all, Web server can not active request send a message to client browser;
In general A JAX (Asynchronous JavaScript+XML) technology, asynchronous mode is adopted in http request and response, can effectively improve user-interaction experience, according to the content of user's the activity local updating page, but still do not allow the passage of Web server active push message to client browser.Yet appearance (Comet: a kind of programming technique along with modern comet technology, use it can be on Web server to client send data and need not be from the request of client), the Comet technology can realize connecting based on the http that keeps for a long time hanging on, update message to the Web client by the Web server propelling movement, thereby employing Comet Technology in Web server also occurred.Blind in this situation, browser sends the http request to server, after setting up http and connecting, just no longer closes or discharges http and connect, and server can utilize this passage, and the form with continual http response initiatively sends a message to browser.But in the webmaster scene of reality, the network environment complexity, especially when browser client lands the remote network management system, setting up so long-time interior http that can not close connects, very difficult, and long connect (long-lived http connection) can bring certain influence to server performance.
This paper has proposed a kind of based on reverse Ajax technology, the active push NM server event notification whole new set of applications pattern to client browser, and it can effectively overcome above-mentioned difficulties, thereby improves the timely responding ability of browser client greatly.
Summary of the invention
Technical problem to be solved by this invention is: server can not active request sends a message to the defective of client browser, the present invention propose a kind of can the active push event message to the network management system of client browser, and method for pushing.
The present invention proposes a kind of network management system of active push network management event, in the network management system of client browser/NM server framework, in client browser, be provided with user interface and reverse Ajax client, and NM server has Web server, and this Web server is provided with reverse Ajax server and network management function module.
Oppositely the Ajax client runs in the client browser, at regular intervals the cycle, initiatively the reverse Ajax server in Web server sends the http request, connects thereby set up http, this connection is afterwards kept in a period of time and will not be discharged by reverse Ajax server controls.During this period, if the business module in the Web server has incident to send, directly be submitted to reverse Ajax server.Oppositely the Ajax server connects by means of the http that has set up this moment, and incident is sent to reverse Ajax client in the browser, and oppositely the Aiax client drives User Page and refreshes content in the presented event.The retention time that http connects is to after date, and oppositely the Ajax server can be closed and be discharged this connection, the http request that waits next oppositely Ajax client to initiate.In addition, sometimes owing to the network reason, this connection also can be hung up unusually.The http that reverse Ajax client is periodically set up connects, and the passage of active push message is provided for reverse Ajax server.
According to a further aspect in the invention,, in client browser, be provided with Admin Events and receive the agency, in Web server, be provided with Admin Events and send the agency in order to keep stable push channel.Admin Events receives the agency and comprises event object processor 1 and Receive sequence number register, and Admin Events sends the agency and comprises event object processor 2 and sequence number maker.
Described network management function module produces the event notification that will send, submit to Admin Events and send the agency, the event object processor 2 that Admin Events sends among the agency is packaged into object to the packing of the primitive event of input, and by obtaining the sequence number of this incident alternately, and this sequence number is marked in the event object with described sequence number maker.Event object processor 2 is appended to this object at the end of the event queue of nearest transmission then.This formation has the maximum length restriction that can dispose.When new object appends into, and queue length is when reaching maximum, and system will adopt the daily record wire wrap method, delete the oldest transmission event object.Event object processor 2 is submitted to reverse Ajax server to the event object that will send.
The http that described reverse Ajax server by utilizing is current have been set up connects and finishes transfer of data, and incident is pushed to reverse Ajax client in the described client browser.Described reverse Ajax client is the incident that receives, submit to Admin Events and receive the agency, 1 pair of incident of receiving of event object processor that Admin Events receives among the agency unpacks, and obtains primitive event and incident sequence number, and this sequence number is recorded in the current Receive sequence number register.Described Admin Events receives the agency by event object processor 1, and the primitive event of receiving is submitted to the browser client page, refreshes its displaying contents.
Described reverse Ajax server adopts drop policy, handles the incident of being submitted to during the http connection closed; Introduce the Admin Events proxy module simultaneously, unified management is carried out in the propelling movement of event notification, thereby construct incident push channel comparatively reliably based on reverse Ajax technology.Oppositely the Ajax server adopts drop policy, handles the incident of being submitted to during the http connection closed, promptly directly is discarded in the updating message that server end is submitted to during the http connection closed.
As seen, the present invention has proposed a kind of method that can be communicated to the Browser client by server active push Admin Events to employing browser/server (Browser/Server) framework, based on the network management system of Web technology.This method adopts advanced reverse Aiax (Asynchronous JavaScript and XML) technology, and according to the automatic re-transmission that triggers the incident of losing of event notification sequence number, thereby guaranteed effectively client can be promptly and accurately, do not have the Admin Events of losing that receives, improve real-time, interaction and the operational efficiency of NM client.
Description of drawings
Fig. 1 is reverse Ajax technology schematic diagram;
Fig. 2 is the message channel structure chart that Web network management system incident pushes;
Fig. 3 is that the network management function module sends event notification figure;
Fig. 4 is network management event re-transmission figure automatically.
Embodiment
Reverse Ajax technology, integrated use browser poll (Polling), Comet server and PiggyBack technology realize that the message from the Web server to the browser pushes, the PiggyBack technology is promptly when server has event message to send to client, earlier the content of message is preserved, client is sent next effectively request by the time, when server provides corresponding response, this message is appended in the response contents, return to the technology of client together.Its principle as shown in Figure 1, oppositely the Ajax client runs in the client browser, cycle at regular intervals, initiatively the reverse Ajax server in Web server sends the http request, thereby setting up http connects, this connection is afterwards kept in a period of time and will not be discharged by reverse Ajax server controls.During this period, if the business module in the Web server has incident to send, directly be submitted to reverse Ajax server.Oppositely the Ajax server connects by means of the http that has set up this moment, and incident is sent to reverse Ajax client in the browser, and oppositely the Ajax client drives User Page and refreshes content in the presented event.The retention time that http connects is to after date, and oppositely the Ajax server can be closed and be discharged this connection, the http request that waits next oppositely Ajax client to initiate.In addition, sometimes owing to the network reason, this connection also can be hung up unusually.The http that reverse Ajax client is periodically set up connects, and the passage of active push message is provided for reverse Ajax server.
Yet the guarantee that this passage is not strict, as shown in fig. 1, at a last http connection closed and next http connects when also success is not set up, the incident that is sent by business module generally is difficult to send to browser client by reverse Ajax server.Certainly oppositely the Ajax server also can get up the whole buffer memorys of incident that submit to this moment, connects up to next http and sets up, and then send.But in the multi-client network management system of reality, when each client can set up next http connects, and is subjected to network condition and self effects of load, and the result can vary.This realization can bring complicated management algorithm and higher realization cost.
In the network management system of the present invention, oppositely the Ajax server adopts drop policy, handles the incident of being submitted to during the http connection closed; Introduce middle-agent's module simultaneously, unified management is carried out in the propelling movement of event notification, thereby construct incident push channel comparatively reliably based on reverse Ajax technology.The structure of this passage as shown in Figure 2, client browser comprises user interface, Admin Events receives agency and reverse Ajax client, described Web server comprises reverse Ajax server, Admin Events sends agency and network management function module.Admin Events receives the agency and comprises event object processor 1 and Receive sequence number register, and Admin Events sends the agency and comprises event object processor 2 and sequence number maker.
The network management function module utilizes the principle of this passage transmission event notification shown in Figure 3:
1, the network management function module produces the event notification that will send, and submits to Admin Events and sends the agency;
2, send among the agency at Admin Events, event object processor 2 is packaged into object to the packing of the primitive events of input, and by obtaining the sequence number of this incident alternately with the sequence number maker, and this sequence number is marked in the event object.Event object processor 2 is appended to this object at the end of the event queue of nearest transmission then.This formation has the maximum length restriction that can dispose.When new object appends into, and queue length is when reaching maximum, and system will adopt the daily record wire wrap method, delete the oldest transmission event object;
3, event object processor 2 is submitted to reverse Ajax server to the event object that will send;
4, oppositely the current http that has set up of Ajax server by utilizing connects and finishes transfer of data, and incident is pushed to reverse Ajax client in the browser;
5, oppositely the Ajax client is submitted to the incident that receives Admin Events and is received the agency;
6, receive among the agency at Admin Events, 1 pair of incident of receiving of event object processor unpacks, and obtains primitive event and incident sequence number, and this sequence number is recorded in the current Receive sequence number register;
7, Admin Events receives the agency by event object processor 1, and the primitive event of receiving is submitted to the browser client page, refreshes its displaying contents.
When the http that sets up reverse Ajax connected, reverse Ajax client/server need receive/send the agency to carry out alternately with Admin Events, with detection and the re-transmission automatically of finishing incident " reception is lost ", as shown in Figure 4:
1, oppositely the Ajax client receives the Admin Events sequence number that agents query receives at last from Admin Events before initiating the http connection to server;
2, receive among the agency at Admin Events, event object processor 1 reads the value of current Receive sequence number register, and returns to reverse Ajax client;
3, oppositely the Aiax user end to server sends the http request, comprises sequence of events that client receives at last number in the required parameter;
4, oppositely the request of receiving of Ajax server and set up http and connect after, the notice Admin Events sends the agency.Carry the incident sequence number that http client identification (available http session realizes) and this client receive at last in this notice;
5, send among the agency at Admin Events, the Admin Events sequence number that event object processor 2 usefulness clients are received at last, in the event queue that sends recently, find out it and connect off period, the event object of failing to receive at http:
A), then continue step 6 if having;
B) if in the event queue, the sequence number of last incident equals the incident sequence number that this client is received at last just, shows that then this client received all Admin Events, no longer continues execution in step 6;
C) if the incident sequence number that client is received at last is the invalid numerical value of expression register initial value, show that then this client sets up reverse Ajax for the first time and connect, no longer continue execution in step 6;
D), but not in the serial number range of event queue, illustrate that then client has event object not receive, and can not give re-transmission for change if the incident sequence number that client is received at last is effective numerical value.At this moment, Admin Events sends the agency can send specific inside error messages to client, notifies it to make unusual error handling processing, for example do management information synchronously or prompting make mistakes etc.
6, event object processor 2 utilized client identification during Admin Events sent and acts on behalf of, and these unreceived event objects, sent to this client, finished the automatic re-transmission of webmaster notice incident.The transmission principle is the same.
According to above-mentioned flow process, the network management event method for pushing based on reverse Ajax technology proposed by the invention realizes having stronger robustness under the lower prerequisite of cost at server.Connect no matter whether browser client can be on time, set up http to server termly, whether the http that perhaps set up connects often by abnormal shutdown, and event notification method of the present invention can guarantee to a great extent that each browser client can not have and lose ground, receives the event notification that the network management function module is sent as soon as possible.So this method can be applicable to a plurality of clients and NM server communication, and the application scenario that differs greatly again of network connection state therebetween.
Claims (21)
1. the network management system of an active push network management event, described network management system comprises client browser and NM server, it is characterized in that: described client browser is provided with user interface and reverse Ajax client, and described Web server is provided with reverse Ajax server and network management function module.
2. the network management system of a kind of active push network management event according to claim 1 is characterized in that: client browser also is provided with Admin Events and receives the agency; Web server also is provided with Admin Events and sends the agency.
3. the network management system of a kind of active push network management event according to claim 2, it is characterized in that: described Admin Events receives the agency and comprises event object processor 1 and current Receive sequence number register, and described Admin Events sends the agency and comprises event object processor 2 and sequence number maker.
4. the network management system of a kind of active push network management event according to claim 1, it is characterized in that: described reverse Ajax client, cycle at regular intervals, initiatively send the http request to described reverse Ajax server, thereby setting up http connects, this connection is afterwards kept in a period of time and will not be discharged by reverse Ajax server controls.
5. the network management system of a kind of active push network management event according to claim 1, it is characterized in that: during described http connects foundation, if the network management function module in the Web server has incident to send, by reverse Ajax server by means of this moment the http that set up connect, incident is sent to reverse Ajax client in the browser.
6. according to the network management system of claim 2 or 3 described a kind of active push network management events, it is characterized in that: Admin Events transmission agency announces network management event and handles, be packaged into event object, and generate the incident sequence number and add in the event object, send to described reverse Ajax server together.
7. the network management system of a kind of active push network management event according to claim 6, it is characterized in that: described sequence number maker generates the incident sequence number, and described event object processor 2 is packaged into event object with the network management event announcement incident sequence number corresponding with it.
8. according to the network management system of claim 2 or 3 described a kind of active push network management events, it is characterized in that: Admin Events receives the agency the described event object that client browser receives is resolved, be reduced into the network management event announcement, and write down the incident sequence number of described network management event announcement.
9. the network management system of a kind of active push network management event according to claim 8, it is characterized in that: 1 pair of event object that receives of described event object processor is resolved, and described serial number register writes down the incident sequence number of described event object.
10. the method for an active push network management event, in the network management system of client browser/NM server framework, described client browser is provided with user interface, Admin Events receives agency and reverse Ajax client, Web server in the described NM server is provided with reverse Ajax server, Admin Events sends agency and network management function module, it is characterized in that, may further comprise the steps:
Step 1, described reverse Ajax client run in the client browser, cycle at regular intervals, initiatively the reverse Ajax server in Web server sends the http request, thereby setting up http connects, this connection is afterwards kept in a period of time and will not be discharged by reverse Ajax server controls;
Step 2, described http connect set up during, if the network management function module in the Web server has incident to send, connect by means of the http that has set up this moment by reverse Ajax server, incident is sent to reverse Ajax client in the browser;
Step 3, described reverse Ajax client driving User Page refresh the content in the presented event.
11. the method for a kind of active push network management event according to claim 10 is characterized in that: described step 2 also comprises step:
Described network management function module produces the event notification that will send, and submits to Admin Events and sends the agency, and Admin Events sends the agency described event notification packing is packaged into event object;
Described Admin Events sends the sequence number that the agency generates a described event notification of correspondence, and this sequence number is marked in the described event object;
Described Admin Events sends the agency described event object is sent to described reverse Ajax server.
12. the method for a kind of active push network management event according to claim 11 is characterized in that: described Admin Events sends the end that the agency is appended to described event object the event queue of nearest transmission.
13. the method for a kind of active push network management event according to claim 11 is characterized in that: described formation has the maximum length restriction that can dispose.
14. the method for a kind of active push network management event according to claim 11 is characterized in that: adopt the daily record wire wrap method, delete the oldest transmission event object.
15. the method for a kind of active push network management event according to claim 10 is characterized in that: described step 3 also comprises step:
Oppositely the Ajax client is submitted to the incident that receives Admin Events and is received the agency;
Described Admin Events receives the agency event object of receiving is unpacked, and obtains primitive event and incident sequence number, and writes down described incident sequence number;
Described Admin Events receives the agency primitive event that parses is submitted to the browser client page, refreshes its displaying contents.
16. the method according to claim 11 or 15 described a kind of active push network management events is characterized in that: described reverse Ajax client sends the http request to reverse Ajax server, comprises sequence of events that client receives at last number in the required parameter.
17. the method for a kind of active push network management event according to claim 16, it is characterized in that: oppositely the request of receiving of Ajax server and set up http and connect after, the incident sequence number notice Admin Events that http client identification and described client are received at last sends the agency.
18. the method for a kind of active push network management event according to claim 16, it is characterized in that: Admin Events sends the Admin Events sequence number that the agency receives at last with client, in the event queue that sends recently, find out it and connect off period, the event object of failing to receive at http.
19. the method for a kind of active push network management event according to claim 16, it is characterized in that: described Admin Events sends the agency and utilizes client identification, described unreceived event object, send to this client, finish the automatic re-transmission of webmaster notice incident.
20. the method for a kind of active push network management event according to claim 16, it is characterized in that: for what fail to receive, and can not give the event object of re-transmission for change, Admin Events sends the agency and sends specific inside error messages to client, notifies it to make unusual error handling processing.
21. the method according to each described a kind of active push network management event among the claim 10-20 is characterized in that: described reverse Ajax server adopts drop policy, handles the incident of being submitted to during the http connection closed.
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| CN101883086A (en) * | 2010-03-15 | 2010-11-10 | 浪潮集团山东通用软件有限公司 | Method for realizing Comet function under ASP.NET environment |
| CN101997893A (en) * | 2009-08-12 | 2011-03-30 | 浙江省公众信息产业有限公司 | System and method for graphically positioning and editing alarm information |
| CN102035880A (en) * | 2010-11-02 | 2011-04-27 | 中兴通讯股份有限公司 | Method and device for maintaining connection |
| CN102035893A (en) * | 2010-12-23 | 2011-04-27 | 中国农业银行股份有限公司 | Method and system for pushing data actively by server |
| CN102333128A (en) * | 2011-10-31 | 2012-01-25 | 河南省电力公司计量中心 | Active transmission method for real-time Web data |
| CN102523109A (en) * | 2011-12-08 | 2012-06-27 | 杭州华三通信技术有限公司 | Resource state updating method, management client ends, and server |
| CN102571834A (en) * | 2010-12-15 | 2012-07-11 | 金华六度信息科技有限公司 | WEB instant messaging system based on server push technology, and method |
| CN104007955A (en) * | 2013-02-26 | 2014-08-27 | 中国石油化工股份有限公司 | Method for reading drilling data upon adding |
| CN104601698A (en) * | 2015-01-15 | 2015-05-06 | 福建天晴数码有限公司 | Browser based communication method and system |
| CN105095358A (en) * | 2015-06-24 | 2015-11-25 | 北京京东尚科信息技术有限公司 | Method and system for acquiring database operation logs |
| CN103780603B (en) * | 2013-12-31 | 2016-10-19 | 电子科技大学 | Lightweight method for pushing in application |
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| CN2847710Y (en) * | 2005-05-19 | 2006-12-13 | 黄宁宁 | Local network mode fault warning system and interface module for said system |
| CN100407644C (en) * | 2005-05-25 | 2008-07-30 | 中兴通讯股份有限公司 | Method for displaying real-time data in web network management system |
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- 2007-11-22 CN CN2007101706657A patent/CN101179435B/en not_active Expired - Fee Related
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| CN101997893A (en) * | 2009-08-12 | 2011-03-30 | 浙江省公众信息产业有限公司 | System and method for graphically positioning and editing alarm information |
| CN101883086A (en) * | 2010-03-15 | 2010-11-10 | 浪潮集团山东通用软件有限公司 | Method for realizing Comet function under ASP.NET environment |
| CN101883086B (en) * | 2010-03-15 | 2013-01-02 | 浪潮集团山东通用软件有限公司 | Method for realizing Comet function under ASP.NET environment |
| CN102035880A (en) * | 2010-11-02 | 2011-04-27 | 中兴通讯股份有限公司 | Method and device for maintaining connection |
| CN102035880B (en) * | 2010-11-02 | 2014-04-30 | 中兴通讯股份有限公司 | Method and device for maintaining connection |
| CN102571834A (en) * | 2010-12-15 | 2012-07-11 | 金华六度信息科技有限公司 | WEB instant messaging system based on server push technology, and method |
| CN102035893A (en) * | 2010-12-23 | 2011-04-27 | 中国农业银行股份有限公司 | Method and system for pushing data actively by server |
| CN102333128A (en) * | 2011-10-31 | 2012-01-25 | 河南省电力公司计量中心 | Active transmission method for real-time Web data |
| CN102523109A (en) * | 2011-12-08 | 2012-06-27 | 杭州华三通信技术有限公司 | Resource state updating method, management client ends, and server |
| CN104007955A (en) * | 2013-02-26 | 2014-08-27 | 中国石油化工股份有限公司 | Method for reading drilling data upon adding |
| CN103780603B (en) * | 2013-12-31 | 2016-10-19 | 电子科技大学 | Lightweight method for pushing in application |
| CN104601698A (en) * | 2015-01-15 | 2015-05-06 | 福建天晴数码有限公司 | Browser based communication method and system |
| CN105095358A (en) * | 2015-06-24 | 2015-11-25 | 北京京东尚科信息技术有限公司 | Method and system for acquiring database operation logs |
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| CN101179435B (en) | 2011-01-19 |
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