CN1758633A - Method for controlling communication flow of network management system - Google Patents
Method for controlling communication flow of network management system Download PDFInfo
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- CN1758633A CN1758633A CN 200410051823 CN200410051823A CN1758633A CN 1758633 A CN1758633 A CN 1758633A CN 200410051823 CN200410051823 CN 200410051823 CN 200410051823 A CN200410051823 A CN 200410051823A CN 1758633 A CN1758633 A CN 1758633A
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Abstract
A method for controlling communication flow rate in network management system applies multi-grade flow rate control which realizes control of communication message flow rate based on numbers of message and service condition of internal memory. The method can solve problem of system collapse caused by message storm occurred on certain module.
Description
Technical field
The present invention relates to network management system, be specifically related in the network management system concrete business be communicated the method for flow control.
Background technology
Usually, in telecom communication system, often adopt some flow control methods that the data flow is controlled, in case the locking system collapse.In general, control the data flows and can realize by following steps: (1) call request connects, and its key technology is to connect to allow control; (2) in the communication process to the monitoring and the control of flow, key technology is to use parameter control; (3) congested control, key technology are to select cell to abandon and congested indication.Wherein the monitoring of flow can be adopted token bucket algorithm with control, promptly general cell rate algorithm GCRA (GenericCell Rate Algorithm).Its basic principle is: suppose the leakage bucket (corresponding certain flow parameter of the degree of depth of bucket) of a limited capacity, the cell of arrival enters Lou bucket, outputs to network after leaking barrel oozing.This leaks the continuous speed outside seepage (this speed corresponding to certain professional cell rate parameter) of bucket with a bodge of time per unit, and when a cell arrived, its capacity added 1 simultaneously.When the cell arrival rate surpass to be leaked barrel oozing speed, the cell of accumulation can make that bucket is full of with Louing continuously, will over flow drain(OFD) bucket (promptly being dropped) if at this moment also have cell to arrive this cell, and this cell promptly is the cell of breaking a contract.As adopt Dual Leaky Bucket Algorithm, the expression first order to leak bucket and handle PCR (Peak Cell Rate, Peak Cell Rate), bucket treatment S CR (Sustained CellRate, sustained cell rate) is leaked in the second level.During concrete flow control, PCR is necessary, and SCR is optional.
Specifically, UPC (Usage Parameter Control, operation parameter control) function be can pass through, monitoring and restriction scheme set up at user/network interface, to guarantee that the actual flowrate characteristic parameter that networks meets the negotiation value in every network connection.Restriction among the UPC mainly is that the cell that belongs to that part of flow that surmounts the negotiation value is marked at present, represents that the service quality of this part cell can not guarantee, in case congested this class cell that just at first abandons takes place network.The cell that transmits in the real network message often has different priorities and does not indicate, promptly distinguishes by the position of the CLP (Cell Loss Priority, Cell Loss Priority) in the header, and CLP=0 represents that priority is the highest, and the big more expression priority of CLP value is low more.Cell drop policy commonly used has two kinds: EPD (Early Packet Discard gives up packet data package in advance) and PPD (Partial PacketDiscard, part is given up packet data package).
The only common and telecommunications network of this effective network traffic data control device, and in network management system, seldom obtain paying attention to and employing, in network management system, if there is not flow control mechanism, so when the message storm takes place, be easy to assemble a large amount of message in the service end of network management system, these message will be exhausted the resource consumption of whole system to the greatest extent, cause system to be collapsed because lacking enough system resource.Therefore we must effectively control the flow in the system.
At present the method for in network management system message being carried out flow control mainly contains 2 kinds.
A kind of is directly to carry out flow control according to the message bar number that is stored in the buffering area.When the message bar number in the buffering area surpasses a predefine value, abandon the follow-up message that enters this buffer area immediately.This method is fairly simple, realize easily, but this predefine value generally all sets in advance, can not adjust according to the actual conditions of system, lack flexibility, when should not abandoning, abandon message easily, therefore can not effectively control the flow of system.
Another kind method is to use priority to come flow is controlled.This control method requires message itself to have precedence information, and the message of different priorities is put into different buffering areas, and when the message storm takes place when, the message in the low buffer area of loss priority.Its condition of judging that storm takes place generally just is to use the message bar number to judge.This method is distinguished message, as far as possible from the message of low priority, has guaranteed that significant data generally do not lose easily when abandoning.But it requires message itself can distinguish priority, has increased the complexity of system, and does not innovate abandoning in principle of key, therefore also can't realize the effective control to the flow of system.
Summary of the invention
The invention provides the method for communication flows control in a kind of network management system, under the prerequisite that does not increase system complexity, according to system's actual conditions, realize control flexibly, the system that guarantees as far as possible can not cause system crash because of certain module generation message storm.
In order to realize the object of the invention, adopt multistage flow control, promptly control the communication information flow according to message bar number and internal memory behaviour in service, specifically may further comprise the steps:
Step 1 after the net element communication module receives a piece of news, judges whether the message bar number in the current queue surpasses a predefined value: if do not surpass, then directly into formation; If surpass, then calculate the memory value that this moment, network management system was used;
Step 2, if use internal memory less than predefined alarm internal memory, message is directly into formation, and adjusts the described internal memory operation frequency values that preestablishes;
Step 3 if use internal memory greater than predefined alarm internal memory, but less than critical internal memory, then starts timer one, and monitoring is during timer one, the variation that internal memory uses, and use to change according to internal memory and handle;
Step 4 if use internal memory greater than critical internal memory, then finds and empties issue queue from all message queues.
Comprise in the above-mentioned steps three: if during timer one, used memory value, then from all message queues, found and empty issue queue always greater than the alarm internal memory.
Comprise in the above-mentioned steps three: if during timer one, used internal memory to occur less than the situation of alarming internal memory, message is directly into formation, and timer one is started at when this situation takes place again.
The problems referred to above formation is meant the message queue that committed memory is maximum.
The present invention is with respect to existing method, by adopting multistage flow control, take all factors into consideration the speed of flow control and the efficient of validity and system resource utilization, solved system because certain module generation message storm causes the problem of system crash, the flexibility of increase system, even if complication system also can achieve effective control.
Description of drawings
Fig. 1 network management system communication flows of the present invention control method flow chart.
Embodiment
Describe the present invention in detail with reference to one embodiment of the present of invention and accompanying drawing thereof below.
Fig. 1 is a network management system communication flows control method flow chart of the present invention.
The present invention mainly utilizes message bar number and application program to use internal memory to carry out flow control.Obtain the operation of internal memory operating position and compare elapsed time, therefore use the message bar number to control at first as far as possible, after surpassing the message bar number, controlling according to the internal memory behaviour in service again.
Taking charge of ZXCOMC V2.5 webmaster project with me is example, because wsf wherein, maf, the processing speed of the emf speed that the foreground network element is sent to the background communication program of comparing wants slow, the message that causes the foreground causes overstocked at the net element communication framework, in order not make system under the situation of foreground network element generation message storm, cause the whole system collapse, adopted the inventive method:
Step 101, communication equipment send a message to the net element communication module of server end;
After step 201, net element communication module receive a piece of news, judge whether the message bar number in the current queue surpasses a predefined value (MaxNum+increment, increment is a frequency of obtaining internal memory in order to regulate), if the message bar number does not surpass, then directly into formation; If surpass then the calculating memory value that this moment, network management system was used; Each queue limitations size is about 5M under the present embodiment default situations;
Step 301, when using internal memory usedMemory less than alarm internal memory alarmMemory, expression system resource is also relatively more sufficient, therefore adjusts original predefined value, reduces to obtain the frequency of calculating internal memory, so increment=increment+1000;
Step 401, during less than critical internal memory, start timer one greater than the alarm internal memory as usedMemory, during the monitor timer one in the variation tendency of usedMemory, the initial configuration of timer one is 15 minutes in the present embodiment.If in 15 minutes, this is worth always greater than alarmMemory, and then the message storm has taken place in expression, empties issue queue so immediately; If this section has usedMemory to take place less than the situation of alarmMemory in the period, message is directly into formation so, and continues time of observing and will count again the time when this situation takes place;
Step 501, as usedMemory during greater than critical internal memory limitMemory, from all message queues, find that maximum message queue of committed memory to be emptied, that recovers that internal memory calculates obtains frequency, i.e. increment=0;
Step 601, message are gone into formation.
In the present embodiment, when the message storm took place, which formation had problem just to handle which formation.When storm took place, selecting the maximum formation of committed memory was issue queue, can certainly select to take one or more in the formation of more internal memory, and it is handled, and other formations are unaffected.
Also increase timed task step 102 in the embodiment of the invention, promptly regularly checked the internal memory behaviour in service of network management system.When using internal memory to surpass limitMemory, abandon the message in the formation of committed memory maximum immediately.This is in order to prevent that the message in might formation from also not reaching maxNum, still
Because certain application has and causes taking suddenly a large amount of internal memories unusually, anti-locking system further worsens and the measure taked.
Application in practice proves; by adopting communication flows control method of the present invention; system can control the size of message that the foreground network element sends effectively; guarantee the normal operation of backstage under the situation that receives net element information as much as possible, protect whole background system can not cause system crash because of the message storm on foreground.Simultaneously because the requirement difference of background system different business, control for concrete message traffic requires also different, this technology provides configuration mode flexibly, each application can customize concrete control strategy according to the oneself requirement difference, has also satisfied application demand in flow control.
Claims (5)
1, a kind of method of network management system communication flows control is characterized in that: realize multistage flow control according to message bar number and internal memory behaviour in service.
2, the method for network management system communication flows control according to claim 1 is characterized in that, specifically comprises the steps:
Step 1 after the net element communication module receives a piece of news, judges whether the message bar number in the current queue surpasses a predefined value: if do not surpass, then directly into formation; If surpass, then calculate the memory value that this moment, network management system was used;
Step 2, if use internal memory less than predefined alarm internal memory, message is directly into formation, and adjusts the described internal memory operation frequency values that preestablishes;
Step 3 if use internal memory greater than predefined alarm internal memory, but less than critical internal memory, then starts timer one, and the monitoring variation that internal memory uses during timer one, and uses variation to handle according to internal memory;
Step 4 if use internal memory greater than critical internal memory, then finds and empties issue queue from all message queues.
3, the method for network management system communication flows control according to claim 2 is characterized in that, comprises in the described step 3:
If during timer one, used memory value always greater than the alarm internal memory, then from all message queues, find and empty issue queue.
4, the method for network management system communication flows control according to claim 2 is characterized in that, comprises in the described step 3:
If during timer one, used internal memory to occur less than the situation of alarming internal memory, message is directly into formation, and timer one is started at when this situation takes place again.
5, according to the method for claim 2 or 3 described network management system communication flows controls, it is characterized in that described issue queue is meant the message queue that committed memory is maximum.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100518233A CN100550861C (en) | 2004-10-10 | 2004-10-10 | A kind of method of network management system communication flows control |
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| CNB2004100518233A CN100550861C (en) | 2004-10-10 | 2004-10-10 | A kind of method of network management system communication flows control |
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| CN1758633A true CN1758633A (en) | 2006-04-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457779A (en) * | 2013-09-10 | 2013-12-18 | 杭州华三通信技术有限公司 | Method and device for path switching according to memory alarms |
| CN103729313A (en) * | 2012-10-11 | 2014-04-16 | 苏州捷泰科信息技术有限公司 | Method and device for controlling input and output flow of SSD cache |
| CN111787362A (en) * | 2020-06-18 | 2020-10-16 | 北京字节跳动网络技术有限公司 | Message processing method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099940B (en) * | 2014-05-05 | 2020-08-04 | 中兴通讯股份有限公司 | Queue management method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729313A (en) * | 2012-10-11 | 2014-04-16 | 苏州捷泰科信息技术有限公司 | Method and device for controlling input and output flow of SSD cache |
| CN103729313B (en) * | 2012-10-11 | 2016-08-17 | 苏州傲科创信息技术有限公司 | The iostream amount control method of SSD caching and device |
| CN103457779A (en) * | 2013-09-10 | 2013-12-18 | 杭州华三通信技术有限公司 | Method and device for path switching according to memory alarms |
| CN111787362A (en) * | 2020-06-18 | 2020-10-16 | 北京字节跳动网络技术有限公司 | Message processing method and device |
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| CN100550861C (en) | 2009-10-14 |
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