CN101808007A - Method for acquiring real-time performance data by network manager - Google Patents
Method for acquiring real-time performance data by network manager Download PDFInfo
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Abstract
The invention discloses a method for acquiring real-time performance data by a network manager. The method comprises the following steps that: network element equipment actively acquires and calculates real-time performance data according to a time point per se and caches the acquired and calculated real-time performance data according to the time point; and the network manager controls the acquisition activity of the real-time performance data on the network element equipment through the configuration of a real-time performance acquisition task and queries the real-time performance data of the equipment through an identifier and a time point sequence number of the real-time performance acquisition task. The method solves the problem that a certain difference exists between the real-time performance data and the actual situation in a conventional real-time performance acquisition method, improves the accuracy of the real-time performance data acquired by the network manager, and reduces the loss of the real-time performance data because the access of the network manager to a managed system is overtime.
Description
Technical field
The present invention relates to network management, be specifically related to the method for acquiring real-time performance data by network manager.
Background technology
Network management system normally is made up of webmaster and the network element device managed thereof, by the NMP interactive maintenance information of agreement, as snmp protocol, finishes various management functions between the two.ISO has defined five big basic functions of network management in ISO/IEC 7498-4 document, and is widely accepted.This five big basic function is: (1) fault management (fault management), (2) accounting management (accountingmanagement), (3) configuration management (configuration management), (4) performance management (performance management) and (5) safety management (security management).
Wherein performance management is had important function in assessment by aspects such as the operation conditions of guard system and operational efficiency.By to analyze from the performance data of being collected by guard system with relatively, can understand current by the running status of guard system, in time discover the abnormal conditions that occur when being moved by guard system, discovery is by the operating bottleneck of guard system, prediction is by the operation trend of guard system, take appropriate measures and solve or prevent the fault that may occur thereby help administrative staff, perhaps by reconfiguring by the resource in the guard system to keep by the runnability of guard system.So accurately and reliably whether the performance data that network management system is collected, and will have influence on administrative staff's analysis, judge, and the validity of the measure of taking.
The particular content of performance management function comprises: the management of the collection of the collection of real-time performance data and management, History Performance Data and management, performance threshold, the analysis of performance data and visual report etc.In the webmaster practice, what History Performance Data reflected is long-term performance data situation of change, will preserve the above time of some months usually.The common History Performance Data that 15 minutes intervals are arranged, and 24 hours History Performance Datas at interval.Because its time interval is long, is generally used for the long-term monitoring of systematic function, trend analysis.And real-time performance data reflections is in a short time performance data situation of change, and particularly current performance data situation does not need to preserve for a long time.The common time interval has 10 seconds, and 20 seconds, 30 seconds etc.Compare with the historical performance management, the reflection that real-time performance management more can be meticulous is by the situation of change of the performance data of guard system in a period of time recently.
The common methods of real-time performance monitoring is, the network management system that network management system realizes based on the mode of poll is to by the collection of the real-time performance data of guard system, be network management system at a certain time interval, send by the query requests of correlated performance data in the guard system.Need the real-time performance parameter (such as speed etc.) of calculating mean value for some, network management system is by the difference of the original performance data that twice collects before and after calculating, and obtains divided by the time interval between twice collection.After obtaining these real-time performance data, network management system is with the patterned mode real-time performance curve that draws.
There is following problem in this mode:
1, can cause the losing of performance data of a poll time point of network management system, thereby cause two poll time points (this and next time) can't calculate by the performance parameter that the original performance data are calculated.
2: large-scale by guard system for some complexity, network management system is with certain polling interval, to the query requests of being sent performance data by guard system.And handle and reply time request each time by the processing delay of guard system collecting performance data and network delay, have nothing in common with each other.Especially, for some by multistage managed object form by guard system, its subordinate's managed object itself can not be calculated and the handling property data, calculate and handle in higher level's object and collect in the mode of poll by higher level's managed object, in general, be difficult to be consistent between the poll time point of the poll time point of guard system self and network management system, therefore be easy to cause network management system collection and the performance data of calculating, bigger error occurred with actual conditions.For example, network management system in twice adjacent data collection activity of network management system, might obtain identical performance number to the same performance parameter of same managed object.Thereby make the calculating of the performance number of similar speed one class, very big error occurs.
Cause the basic reason of these problems to be 1: the acquisition time point of real-time performance data is that the poll time point by network management system decides.And the poll time point of network management system is that network management system produces at random, is difficult to synchronous by the poll collection activity of guard system inside, thereby causes the inaccurate of original performance data.2: network management system is initiated at random to the collection activity of real-time performance data, and webmaster is based on the original performance data that obtain, by calculating the value of other performance parameter.Thereby the performance parameter value that causes these to calculate is inaccurate.
Summary of the invention
Technical problem to be solved by this invention is the problem that is had certain error by the real-time performance data of guard system and actual conditions that solves that network management system collects.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention provides a kind of method of acquiring real-time performance data by network manager, may further comprise the steps:
A10, network element device start the sequence number counter of himself when starting, this sequence number counter generates sampling sequence number continuously according to the sample frequency of network element device self;
Real-time acquisition tasks is created or deleted to A20, webmaster on network element device, comprise the webmaster sign in this real-time acquisition tasks, gather duration, acquisition interval, acquisition target, acquisition parameter and task status;
A30, network element device distribute a task identification and feed back to webmaster for each real-time acquisition tasks;
A40, webmaster send real-time acquisition tasks status command according to task identification, and this real-time acquisition tasks status command is for starting or stoping;
A50, the real-time acquisition tasks status command that receives when network element device are when starting, the performance data of this network element device is gathered in real time in beginning, and the results of property that calculates with the performance data that collected, according to this performance data, the current sampling sequence number in the sequence number counter and corresponding absolute time are stored in the metadata cache in the network element device; The real-time acquisition tasks status command that receives when network element device stops to gather in real time the performance data of this network element device when stopping;
A60, webmaster are known the performance data of network element device by querying command.
In the said method, steps A 60 may further comprise the steps:
A601, webmaster issue query statement at a real-time performance acquisition tasks to network element device, comprise webmaster sign, real-time performance acquisition tasks sign and the current inquiry sampled point of webmaster markers sequence number in this query statement, wherein for initial query, the current inquiry sampled point of webmaster markers sequence number=0;
A602, network element device are received the set that returns to all properties parameter acquisition result of this real-time performance acquisition tasks of webmaster behind the query statement, and this performance parameter collection result comprises current sequence number, current absolute time and current performance parameter;
A603: last sampling sequence number that webmaster returns when inquiring about so that equipment is last continues to send query statement as the current inquiry sampled point of webmaster markers sequence number;
A604: network element device returns the performance parameter set of all sampling sequence numbers greater than the current inquiry sampled point of webmaster markers sequence number, if not greater than the performance parameter set of the current inquiry sampled point of webmaster markers sequence number, then return null set;
A605, webmaster be according to its enquiry frequency, the repeating step A603 that does not stop, and the repeating step A604 that network element device does not stop stops or deleting up to a real-time performance acquisition tasks.
The present invention, the time point collection of self is initiatively pressed in employing by network element device, calculate the real-time performance data, and by time point cache collection and the real-time performance data that calculate, webmaster is controlled the collection activity of real-time performance data on the network element device and the sign by the real-time performance acquisition tasks and time point sequence number by configuration real-time performance acquisition tasks and is come real-time performance data on the query facility, solved the problem that there are certain error in real-time performance data and actual conditions in the existing real-time performance acquisition method, improved the accuracy of the real-time performance data that webmaster collects, reduced webmaster simultaneously because of visit losing by the overtime real-time performance data that cause of guard system.
Description of drawings
Fig. 1 is the flow process of the real-time performance data on the webmaster inquiry network element device.
Embodiment
The method of acquiring real-time performance data by network manager provided by the invention may further comprise the steps:
A10, network element device start the sequence number counter of himself when starting, this sequence number counter generates continuous sequence number according to the sample frequency of network element device self;
Network element device be provided with one independently module unify to safeguard the sampling sequence number of different sample frequencys wherein have a minimum sample frequency to be called the crude sampling frequency.Whether exist real-time performance acquisition tasks and this task whether to start irrelevant in the maintenance of sampling sequence number and the network element device, as long as network element device starts, the sampling sequence number maintenance activity promptly begins, be equivalent to network element device certainly as the relative time coordinate that oneself marks based on sampling sequence number, when each acquisition tasks is used the collection sequence number at needs, only need from this module, reach just passable.
When a plurality of acquisition tasks are present on the network element device, and the sampling period difference of each acquisition tasks, when the state of acquisition tasks upgrades for the sequence number counter generation of startup and this acquisition tasks, promptly trigger a collection activity of this acquisition tasks, for this collection activity obtains the real-time performance data and adds timestamp, promptly add the current sampling sequence number and the corresponding absolute time of this sequence number counter.
Real-time acquisition tasks is created or deleted to A20, webmaster on network element device, create and need the performance parameter of gathering on the object that comprises webmaster sign, acquisition tasks duration, acquisition interval, task status, collection in the instruction of real-time acquisition tasks and each acquisition target, acquisition target is meant the card on the equipment, the managed object of port and so on, the parameter that needs to gather is meant the performance parameter that the needs on the managed object are handled, as the upstream rate on the port object (po), parameters such as downstream rate.
A30, network element device distribute a task identification and feed back to webmaster for each real-time acquisition tasks, comprise the command execution state in the feedback information, when the order return state be should comprise that also webmaster identifies and the network element device task identification successfully the time.
A40, webmaster send real-time acquisition tasks status command according to task identification, and this instruction comprises webmaster sign, network element device task identification and command code, and described command code is for starting or stoping; Network element device return command executing state.
A50, the real-time acquisition tasks status command that receives when network element device are when starting, the performance data of this network element device is gathered in real time in beginning, and the results of property that calculates with the performance data that collected, according to this performance data, the current sampling sequence number in the sequence number counter and corresponding absolute time are stored in the metadata cache in the network element device; The real-time acquisition tasks status command that receives when network element device stops to gather in real time the performance data of this network element device when stopping.
A60, webmaster are known the performance data of network element device by querying command.
Fig. 1 is the flow process of the real-time performance data on the webmaster inquiry network element device, when inquiring about, the parameter that webmaster issues comprises webmaster sign, network element device real-time performance acquisition tasks sign and sampled point markers sequence number, return the sampled point performance parameter of sampling sequence number when network element device is replied, that is to say in the information of returning it to be the information of a plurality of sampled points greater than sampled point markers sequence number.Below in conjunction with Fig. 1 steps A 60 is described in detail.
As shown in Figure 1, steps A 60 may further comprise the steps:
A601, webmaster issue query statement at a real-time performance acquisition tasks to network element device, comprise webmaster sign, real-time performance acquisition tasks sign and the current inquiry sampled point of webmaster markers sequence number in this query statement, for initial query at this real-time acquisition tasks, the current inquiry sampled point of webmaster markers sequence number=0 wherein.Reason be when a real-time performance acquisition tasks after the webmaster side starts, webmaster is when carrying out initial inquiry at certain task, webmaster does not also know how many current sequence numbers of real-time performance data present on the network element device is, therefore arranging the sampled point markers sequence number that this moment, webmaster issued is 0.
A602, network element device are received the set that returns to all properties parameter acquisition result of this real-time performance acquisition tasks of webmaster behind the query statement, and this performance parameter collection result comprises current sequence number, current absolute time and current performance parameter;
A603: last sampling sequence number that webmaster returns with network element device continues to send query statement as the current inquiry sampled point of webmaster markers sequence number;
A604: network element device returns the performance parameter set of all sampling sequence numbers greater than sampled point markers sequence number, if not greater than the performance parameter set of sampled point markers sequence number, then return null set;
A605, webmaster be according to its enquiry frequency, the repeating step A603 that does not stop, and the repeating step A604 that network element device does not stop stops or deleting up to a real-time performance acquisition tasks;
In sum, the method for network management system real-time performance provided by the invention data acquisition comprises following components:
(1) webmaster is by setting up the collection activity of the real-time performance data of network element device to network element device configuration real-time performance acquisition tasks.
Network element device is prepared the needed real-time performance data of webmaster according to the real-time performance acquisition tasks of network management configuration.The real-time performance acquisition tasks comprises information such as duration, acquisition interval, acquisition target, acquisition parameter.Duration has determined the life period length of this task on network element device, surpasses this time length, and network element device can be with this task deletion, to avoid useless task long-term existence in network element device.Acquisition interval has been specified the network element device collection and has been calculated the periodic intervals of real-time performance data, and network element device gathers or calculate the real-time performance data that task therewith is associated at interval by this.Acquisition interval in the real-time performance acquisition tasks is the integral multiple of the basic sample frequency of network element device.Acquisition target is the managed object that needs to gather the real-time performance data.Acquisition parameter is to need the performance parameter of being gathered on the managed object.
Webmaster can be created the real-time performance acquisition tasks on network element device, and the state of control real-time performance acquisition tasks, and this state is for starting or stoping, and webmaster can be deleted the real-time performance acquisition tasks that it is created simultaneously.Network element device is that each real-time performance acquisition tasks is distributed a task identification, and webmaster comes task on the managed network element equipment by this task identification.When the real-time performance acquisition tasks started, network element device was responsible for preparing the real-time performance data of this task appointment, and can accept the inquiry of the real-time performance data of webmaster.When the real-time performance acquisition tasks stopped, network element device was no longer accepted the querying command to the real-time performance data of this acquisition tasks.When the real-time performance acquisition tasks was deleted, network element device was no longer supported all controls and the querying command of webmaster at this acquisition tasks.
(2) network element device carries out the collection and the buffer memory activity of real-time performance data based on the time series of self.
Real-time performance data collection cycle on the network element device triggers by network element device self decision rather than according to the poll collection activity of webmaster temporarily, and the real-time performance data of network element device are calculated by network element device, and the row cache of going forward side by side is for the webmaster inquiry.
All performance parameter values are all calculated by network element device, its objective is to avoid webmaster error to occur owing to a variety of causes when calculating.Simultaneously, network element device is according to self-ability, be that each performance parameter in 1 real-time performance acquisition tasks is preserved the 1 collection sample to a plurality of history, and gather sample for each and stamp timestamp based on sampling sequence number and absolute time, the purpose of this practice is the fault tolerant mechanism that provides limited, so that can when certain inquiry can't obtain the real-time performance data because of a variety of causes, can when subsequent query, can obtain the data that do not obtain last time simultaneously at webmaster.
Webmaster is according to the task identification of a real-time performance acquisition tasks, and the sequence number of real-time performance data comes the real-time performance data on the periodic queries network element device, and the real-time performance curve that draws in view of the above.
During the initial query of the webmaster pair real-time performance data that are associated with a real-time performance task, do not know on the current network equipment sequence number situation of the real-time performance data that task therewith is associated at this moment because of webmaster, agreement issues sequence number 0, current up-to-date real-time performance data and the sequence number that are associated of task therewith on the network element device answering net element device, webmaster has obtained current sampling sequence number from the replying of network element device, in subsequent query, webmaster is inquired about as parameter with this sampling sequence number, and network element device returns all real-time performance data that are associated with this task greater than this sampling sequence number.Polling interval on the webmaster is its refreshing frequency, and promptly webmaster reads the time interval of the real-time performance data on the network element device.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (2)
1. the method for acquiring real-time performance data by network manager is characterized in that may further comprise the steps:
A10, network element device start the sequence number counter of himself when starting, this sequence number counter generates sampling sequence number continuously according to the sample frequency of network element device self;
Real-time acquisition tasks is created or deleted to A20, webmaster on network element device, comprise the webmaster sign in this real-time acquisition tasks, gather duration, acquisition interval, acquisition target, acquisition parameter and task status;
A30, network element device distribute a task identification and feed back to webmaster for each real-time acquisition tasks;
A40, webmaster send real-time acquisition tasks status command according to task identification, and this real-time acquisition tasks status command is for starting or stoping;
A50, the real-time acquisition tasks status command that receives when network element device are when starting, the performance data of this network element device is gathered in real time in beginning, and the results of property that calculates with the performance data that collected, according to this performance data, the current sampling sequence number in the sequence number counter and corresponding absolute time are stored in the metadata cache in the network element device; The real-time acquisition tasks status command that receives when network element device stops to gather in real time the performance data of this network element device when stopping;
A60, webmaster are known the performance data of network element device by querying command.
2. the method for acquiring real-time performance data by network manager as claimed in claim 1 is characterized in that steps A 60 may further comprise the steps:
A601, webmaster issue query statement at a real-time performance acquisition tasks to network element device, comprise webmaster sign, real-time performance acquisition tasks sign and the current inquiry sampled point of webmaster markers sequence number in this query statement, for initial query, the current inquiry sampled point of webmaster markers sequence number=0;
A602, network element device are received the set that returns to all properties parameter acquisition result of this real-time performance acquisition tasks of webmaster behind the query statement, and this performance parameter collection result comprises current sequence number, current absolute time and current performance parameter;
A603: last sampling sequence number that webmaster returns when inquiring about so that equipment is last continues to send query statement as the current inquiry sampled point of webmaster markers sequence number;
A604: network element device returns the performance parameter set of all sampling sequence numbers greater than the current inquiry sampled point of webmaster markers sequence number, if not greater than the performance parameter set of the current inquiry sampled point of webmaster markers sequence number, then return null set;
A605, webmaster be according to its enquiry frequency, the repeating step A603 that does not stop, and the repeating step A604 that network element device does not stop stops or deleting up to a real-time performance acquisition tasks.
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| CN103957125A (en) * | 2014-05-08 | 2014-07-30 | 南京信息职业技术学院 | Method for collecting and displaying real-time performance parameters of network devices |
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| CN104639353A (en) * | 2013-11-12 | 2015-05-20 | 中兴通讯股份有限公司 | Performance data collection method and server used for telecommunication network management system and server |
| CN105357060A (en) * | 2015-12-09 | 2016-02-24 | 瑞斯康达科技发展股份有限公司 | Method, device and system for obtaining network equipment performance data |
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