CN104270291A - Content delivery network (CDN) quality monitoring method - Google Patents
Content delivery network (CDN) quality monitoring method Download PDFInfo
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Abstract
The invention relates to a content delivery network (CDN) quality monitoring method. A CDN comprises a data center, a bandwidth provider switch and edge nodes. The method includes the following steps that monitors in the data center carry out packet internet grope (PING) testing on node servers; the monitors in the data center carry out PING testing on the bandwidth provider switch networked with the data center; the monitors in the data center carry out testing on the edge nodes, if the edge nodes are controllable nodes, at least a part of PING testing, downloading rate testing and page Poll testing are carried out, and if the edge nodes are uncontrollable nodes, PING testing is carried out; the controllable nodes are edge nodes, capable of being logged into by a supervisor of the data center through the network and deploying downloading rate testing and page Poll testing, of HTTP website service, and the uncontrollable nodes are edge nodes, incapable of being logged into by the supervisor of the data center through the network or deploying downloading rate testing or page Poll testing, of the HTTP website service.
Description
Technical field
The present invention relates to CDN quality test, relate in particular to the method for CDN quality monitoring.
Background technology
The full name of CDN is Content Delivery Network, i.e. content distributing network.Its objective is by increasing the new network architecture of one deck in existing Internet, the content of website is published to the network " edge " closest to user, make user can obtain required content nearby, solve the situation that Internet network is crowded, improve the response speed of user's access websites.Solve technically due to the slow problem of the network bandwidth is little, user's visit capacity is large, the unequal reason of network point distribution causes user's access websites response speed comprehensively.CDN sets up and covers the distributed network formed on bearer network, by the service node being distributed in zones of different.Source contents to be transferred to the edge closest to user by certain rule by it, makes user can obtain required content nearby, reduces the bandwidth requirement to backbone network, improve the response speed of user's access.Be not difficult to find out from the description of CDN technology, can by the information transmission at remote data center on home server by CDN technology, local user access home server gets final product finishing service.Briefly, it is a total system disposed through tactic that content issues net (CDN), comprise redirected and Content Management 4 important documents of distributed storage, load balancing, network request, and the network flow management (Traffic Management) of Content Management and the overall situation is the core place of CDN.By the judgement of user's close and server load, CDN guarantees that content provides service with a kind of very efficiently request that mode is user.Generally speaking, content service is based on caching server, and also referred to as proxy caching, it is positioned at the edge of network, only has the distant of " jumps " (Single Hop) apart from user.Meanwhile, proxy caching is a transparent mirror picture of content supplier's source server (being usually located at the data center of CDN service provider).Such framework makes CDN service provider can represent their client, i.e. content provider, provides experience as well as possible to end user, and these users can't stand request response time any delay.According to statistics, adopt CDN technology, the access to content amount of 70% ~ 95% of whole Website page can be processed, alleviate the pressure of server, improve performance and the extensibility of website.
Typical CDN is made up of five parts, mainly comprises five parts: source server, node server, GSLB Control Server, network management system, Content Management System.Source server is exactly the data center server at real place, website.Node server is exactly the server being positioned at each cloud point, the copy of the web site contents that in store people frequently access on node server.GSLB Control Server special has highly reliable and equipment that is high redundancy, and its effect is on node server working properly by the traffic transport of source server.GSLB can the source of automatic decision user, effectively ensures that requirements for access to be assigned to from it in logic recently, on the most healthy node server.By the buffer memory of current content or buffer memory how long or be not retained in node server and directly return source server etc. the content that Content Management System provides according to content supplier and target customers, make in advance requirements for access and judging whether.
In order to ensure the normal operation of whole system, each CDN has a network management system.It is responsible for realizing distribution and detects and concentrated alarm, ensures within the very first time, find fault, localizing faults, and monitors in real time the respective services of application layer while monitor network is communicated with.Therefore, network quality test has important effect in CDN operation, it is judge CDN new node network quality (whether such as decision node server or data center exist fault etc.), which region meshed network should cover, and the important tool of monitor node network quality.Simultaneously it at other for network quality service has important effect.
Existing network quality test major part is oneself controlled IP storehouse of test, main following several method of testing:
1.PING tests:
PING (Packet Internet Grope), the Internet packets survey meter is a kind of program for test network connection amount.PING sends an ICMP echo request message and also reports whether receive desired ICMP Echo Reply to destination.PING applies the too much time returned, and can be used for getting rid of those all toos slow and can not the dissemination system of effective transmission information.This test is used for by terminal reducing the number distributing website test.The shortcoming of ping testing is that ping testing can only test time delay end to end and packet drop, but in user to access pages process, often also comprise access DNS, set up tcp corresponding and pull time of file, although ping testing can reaction Link State end to end to a certain degree, this test can not test out allly contains the time.
2. downloading rate test
Download and refer to the mode of being removed swap data between computer by http or File Transfer Protocol, transmission speed between them is measurement one the most direct the most a kind of test mode of network quality situation end to end, and this test mode is also a kind of mode the most frequently used in CDN test.Due to this test need to depend on tested end be can control and stable server end itself, can be uncontrollable so just highly depend on tested end.Such as, if tested to as if the logical computer of a Daepori, and externally do not provide Telnet and software download etc. for the authority of network test, so just cannot carry out downloading rate test to this object.
3. page poll tests
The opening speed of website just refers to the total time shown completely to Website page from click website, and page Poll test is exactly analog subscriber from sending accession page request to the test finally receiving pagefile content and take time, this test is the test of the properest user side, and institute's time spent period searches the DNS time, the TCP that connects needs time, data receipt time and presentative time.But similar with downloading rate test mode, page Poll test is also that to depend on tested end be can control and stable server end itself, can be uncontrollable so just highly depend on tested end.
Existing network quality test is general because the IP storehouse of coverage test is more at random, means of testing single and depend on oneself can control tested object IP address (such as downloading rate test and the page poll test just need tested to like controlled), if do not have the strange overlay area of the server of oneself just cannot launch to test accurately at one.What test is all the IP address of external client simultaneously, and the network condition therefore closer to this end of CDN node exists monitoring blind spot.Cause Test coverage face so limited, the situation that test accuracy is not high.
In addition, existing CDN test all directly can only see final test result, the time delay that such as device A is tested to equipment B and packet loss, downloading rate and poll page institute's time spent.In fact, often through multiple switch or many network paths between A to B, the test result merely from A to B, the communication can only understanding A to B goes wrong, and but decision problem cannot appear at which concrete link.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of CDN quality control method, and it can provide layering monitoring capacity.
The present invention be solve the problems of the technologies described above the technical scheme adopted be propose a kind of content distributing network quality control method, this content distributing network comprises data center, bandwidth provider switch and fringe node, and the method comprises the following steps: the monitoring equipment in this data center inside carries out PING (Packet Internet Grope) test to the node server of this data center; The bandwidth provider switch of networking from monitoring equipment pair and this data center of this data center inside carries out ping testing; Test from the monitoring equipment edge node of this data center inside, if wherein this fringe node is controllable node, then carry out ping testing, downloading rate test and page Poll test at least part of, if this fringe node is uncontrollable node, then carry out ping testing; Wherein controllable node is can be disposed by network entry the fringe node of HTTP website service that downloading rate test and page Poll test by the supervisor of data center, and uncontrollable node is can not by the supervisor of data center by network entry or the fringe node of HTTP website service can not disposing downloading rate test and page Poll test.
In one embodiment of this invention, after ping testing is carried out to the server of this data center, also comprise and the time delay of test acquisition and packet loss are compared with one group of first reference value, whether normal to determine the switch that tested node server or node server connect.
In one embodiment of this invention, after carrying out ping testing to the bandwidth provider switch of networking with this data center, whether the packet loss also comprised test obtains compares with one second reference value, normal to determine this bandwidth provider switch.
In one embodiment of this invention, ping testing is carried out to the bandwidth provider switch of networking with this data center, comprises and one or more interconnect port of this bandwidth provider switch are tested.
In one embodiment of this invention, this fringe node be server, personal computer, panel computer, smart mobile phone, switch and router one of them.
In one embodiment of this invention, testing to each controllable node the result drawn comprises following part or all of: time delay, packet loss, mdev variance yields and downloading rate value.
In one embodiment of this invention, the result drawn is tested to each controllable node and comprise time delay and packet loss.
In one embodiment of this invention, said method also comprises and obtains uncontrollable node as follows: obtain public IP storehouse, region; This public IP storehouse is sorted out; The test machine of diverse geographic location tests common objective IP; By the test result of the different test machine of comparison, find out stable public jumping; Public jumping is referred to one belong in the stable IP storehouse in this IP geographical position, operator, region.
The present invention is owing to adopting above technical scheme, make it compared with prior art, there is following remarkable advantage: the present invention is except monitoring fringe node, also newly-increased monitor data center Intranet environmental quality, control and measuring bandwidth provider core switch end are to the network quality situation of node switch end, occurring that the situation that network quality declines can be got rid of in layering, the fastest orientation problem point by such layering monitoring.Further, of the present invention except by monitoring controllable node except, also monitor uncontrollable node, by analysis monitoring result reach monitoring exist monitoring blind spot region.
Accompanying drawing explanation
Above summary of the invention of the present invention and embodiment below can be better understood when reading by reference to the accompanying drawings.It should be noted that, accompanying drawing is only as the example of claimed invention.In the accompanying drawings, identical Reference numeral represents same or similar element.
Fig. 1 illustrates the typical network topology framework of the one of data center in CDN.
Fig. 2 illustrates the exemplary topology framework of CDN.
Fig. 3 illustrates the layering monitoring flow process of one embodiment of the invention.
Fig. 4 illustrates the fringe node monitoring flow process of one embodiment of the invention.
Fig. 5 illustrates the method for supervising flow process of one embodiment of the invention.
Embodiment
Below detailed features of the present invention and advantage is described in a specific embodiment in detail, its content is enough to make any those skilled in the art understand technology contents of the present invention and implement according to this, and specification, claim and the accompanying drawing disclosed by this specification, those skilled in the art can understand the object and advantage that the present invention is correlated with easily.
Fig. 1 illustrates the typical network topology framework of the one of data center.There is in the network topology framework of this data center 100 core switch 101 (such as switch A).The switch 120 (such as ISP switch) that this core switch 101 and service provider provide is interconnected by one or more (shown in figure 3) link.Core switch 101 can connect one or more second line of a couplet switch 102 (such as switch b).It is interconnected with core switch 101 that node server 103 (such as high-speed cache A, high-speed cache B) in CDN directly or can pass through second line of a couplet switch 102.Meanwhile, this framework also comprises at least one monitoring equipment 104, for monitor network quality.
Fig. 2 illustrates the exemplary topology framework of CDN.Shown in figure 2, what the periphery of data center 100 connected is many fringe nodes 140.Fringe node 140 is positioned at outside data center 100, can by being connected to the network equipment of data center.For example, fringe node can be server, personal computer, panel computer, smart mobile phone, switch, router etc.
As a rule, between the switch 120 that the data interaction of network can occur in the core switch 101 of data center, second line of a couplet switch 102, node server 103, service provider provide and fringe node 140, thus need the quality of the link testing these equipment composition.
But known test is all directly see test result, the time delay tested to B as device A and packet loss, downloading rate and poll page institute's time spent.But decision problem cannot appear at which process according to test result.For this reason, according to embodiments of the invention, provide the method for carrying out zonal testing according to test environment.Specifically, the link of equipment room each in CDN is decomposed further, comprise link between switch 120 that data center's inner link, data center and service provider provide and the data center link to fringe node.Use the monitoring equipment 104 being positioned at data center inside to carry out quality test to each layer link, the quality of each layer link can be understood respectively.
Further, due in fringe node, controlled number of nodes is very limited, and in order to improve coverage rate and the accuracy of test, embodiments of the invention introduce uncontrollable node.Wherein controllable node is can be disposed the fringe node of HTTP website service of downloading rate test and page Poll test by the supervisor of data center by network entry, uncontrollable node is neither by the supervisor of data center by network entry, can not dispose the fringe node of the HTTP website service of downloading rate test and page Poll test.
Fig. 3 illustrates the layering monitoring flow process of one embodiment of the invention.Shown in figure 3, flow process divides three layers to monitor.The monitored object of three supervisory layers is obtained, such as switch, node server and fringe node in step 301.In pending data such as step 302 grade, once receive data, namely according to circumstances carry out each layer monitoring.
If receive ground floor data, then carry out data center's internal control in step 303, this is ground floor monitoring.Specifically, the heart 100 inside selects a monitoring equipment 104 to monitor in the data, and monitored object can comprise switch gateway ip address and all node server IP addresses.Here, test mode can be ping testing, comprises the time delay of test monitoring object, the packet loss of monitored object.If after step 304 obtains data, final step 309 can be entered and draws test result.
For test result, can compare with one group of first reference value, whether normal to determine the switch that tested node server or server connect.For example, one group of first reference value is defined, time delay 2ms, packet loss 0%.As long as packet loss be greater than 0% or time delay be greater than 2ms and meet any one condition, then think that data center inside exists network problem.
If receive second layer data, then carry out data center in step 305 and hold bandwidth provider switch end to monitor, this is second layer monitoring.Specifically, the heart 100 inside selects a monitoring equipment 104 to monitor in the data; Determine the one or more IP of monitoring addresses (being generally devices interconnect IP address) of bandwidth provider switch end; Then this IP address is tested.Here, test mode can be ping testing, comprises the packet loss of test monitoring object.If after step 306 obtains data, final step 309 can be entered and draws test result.
For test result, can compare with one second reference value, whether normal to determine this bandwidth provider switch.For example, an accuracy threshold is defined, packet loss 0%.If test result is greater than threshold value packet loss 0%, then think that monitored object has network problem.
If receive third layer data, then carry out the monitoring of data center's end-to-edge node in step 307, this is third layer monitoring.Specifically, can a monitoring equipment 104 be selected to monitor in the heart 100 inside in the data, monitored object comprises controllable node and uncontrollable node.If after step 308 obtains data, final step 309 can be entered and draws test result.
For test result, can compare with standard value, to determine that whether monitored object is normal.For example, define a standard value, same to region (such as a province or city, lower same) is with the downloading rate 1M/s of operator, time delay 60ms.These two parameter values are threshold value, are greater than 60ms and meet any one condition, all think that monitored object brings out existing network network Quality Down as long as downloading rate is less than 1Mbps or time delay.
As mentioned before, the monitored object (at this fringe node) of third layer monitoring comprises controllable node and uncontrollable node.Fig. 4 illustrates the fringe node monitoring flow process of one embodiment of the invention.Shown in figure 4, in step 401, obtain the test I P address of controllable node and uncontrollable node.At this, controllable node is generally the node server in other data centers beyond the data center of monitoring equipment place.This kind of server 103 to have a significantly feature, is controllable, and can dispose downloading rate test, page poll tests and ping testing.Uncontrollable node is generally by obtaining a stable covering IP storehouse and obtaining.This kind of uncontrollable node, owing to controlling, so can only provide the most basic ping testing, namely enablely provides download and page poll test to be also a kind ofly be considered as unstable test source.
After step 402 waits until data, namely can enter step 403, start to test controlled and uncontrollable node.Controllable node can be carried out ping testing, downloading rate test and page poll and test, tester can select according to demand one of them or whole.Such as, by test datas such as download file record downloading rates.Uncontrollable node can draw the test data such as time delay, packet loss by ping testing.If after step 404 obtains data, final step 405 can be entered and draws test result.
For example, an accuracy threshold is defined, with the downloading rate 1M/s of region with operator, time delay 60ms, these two parameter values are threshold value, are greater than 60ms and meet any one condition, all think that the residing data center of monitoring occurs that network quality declines as long as downloading rate is less than 1Mbps or time delay.
In one embodiment of this invention, the acquisition methods of uncontrollable object is roughly as follows: the public ip storehouse obtaining large regions; The IP storehouse obtained is sorted out according to certain refinement standard; The test machine of diverse geographic location tests common objective IP; By the different test machine test result of comparison, find out stable public jumping; Public jumping is referred to new belonging in the stable ip storehouse in this ip geographical position, operator, region.
Fig. 5 illustrates the method for supervising flow process of one embodiment of the invention.Shown in figure 5, conclude aforementioned description, the method for supervising of one embodiment of the invention comprises the following steps:
Step 501, the monitoring equipment of interior portion carries out ping testing to the server of this data center in the data;
Step 502, the bandwidth provider switch of networking from monitoring equipment pair and the data center of data center inside carries out ping testing;
Step 503, test from the monitoring equipment edge node of this data center inside, if wherein fringe node is controllable node, then carry out ping testing, downloading rate test and page Poll test at least part of, if fringe node is uncontrollable node, then carry out ping testing.
Exemplify the example of actual test below.
One, the monitoring of data center switchboard internal soundness
Known monitoring mode cannot monitor switch internal network quality, and such as server load is high, net card failure, netting twine loosen the internal network quality caused.
As Fig. 2, if monitor time delay, the packet drop of all servers (as 103) in notebook data center 100 times on monitoring equipment 104 in real time, the network condition of switch inside just can be known.Can by defining a standard delay value and standard packet loss weighs inner network condition.
Such as monitoring equipment 104 to the time delay of high-speed cache A be 0.58ms, packet loss is 0%; Monitoring equipment 104 to the time delay of high-speed cache B be 3.75ms, packet loss is 1%.
Definition Intranet standard delay value is 2ms, and standard packet loss is 0%.Following situation can be had by the time delay of test Intranet machine:
1. monitoring equipment tests other servers, the situation of the time delay packet loss that occurs being above standard through three monitoring period part machines, then this server just can be judged to be problematic machine, and people can be allowed by the mode of reporting to the police to be that to investigate be that what reason causes.
2. monitoring equipment tests other servers, the situation of the time delay packet loss that all occurs being above standard through three monitoring period Servers-alls, then can judge it is the problem of monitoring machine, same warning out allows people for going investigation.
3. monitoring equipment tests other servers, presents the situation of the time delay packet loss that is above standard through three monitoring period part machines, in conjunction with the machine position gone wrong as all under same cascaded switches.Whether occur running high or uneven situation in conjunction with this switch simultaneously, think further investigation problem.
Two. link-quality monitoring between data center's core switch to bandwidth provider switch
As shown in Figure 1, the switch 120 of data center's core switch 101 and bandwidth provider is interconnected, if wherein link fails is as circuit loosens, single-link load too high, single-link interruption etc. all will cause network quality to be deteriorated consequence.If ensureing in the Intranet environment no problem situation within oneself switch, by going every bar upper level link situation of test core switch 101 just can the Timeliness coverage interconnect problem fault that causes from monitoring equipment 104.
For example, the switch 120 that data center's core switch 101 and operator provide has three interconnection lines, the Internet address of opposite end respectively: 192.168.1.1,192.168.1.2,192.168.1.3.
1. monitor machine and test interconnect port A, the situation of the time delay packet loss that all occurs being above standard through three monitoring periods, then judge that interconnect port A has problem, people can be allowed to be that to investigate be that what reason causes by the mode of warning.
2. the same, whether the interconnect port that can test out other equally by such method has problem.
As shown in Figure 1, in the IP storehouse, place of a data center, there is N (N is positive integer) individual IP.The method of current supervisory control system monitoring is that the downloading rate value of the data center testing place, this IP storehouse is to judge the network quality situation of this data center, if one's respective area with the data center of operator little or non-existent time, the monitoring of this data center will have problems.
Three. data center is to the quality-monitoring in IP storehouse, one's respective area
If the target of monitoring is not only confined to one's respective area CDN data center, but expand the IP address in IP storehouse, one's respective area to, just can accurately monitor notebook data center to live network quality more comprehensively.Concrete grammar is as follows:
1. test the IP address in the IP storehouse at place, notebook data center 100 from the monitoring equipment 104 of data center 100, test can comprise ping testing and downloading rate test, page poll test.
2., if IP address oneself data center, carry out ping testing, downloading rate is tested, page poll tests, otherwise just can only carry out ping testing.
3. test needs the result that draws to be packet loss, time delay and mdev variance yields, if having downloading rate value also need obtain.
The standard value of 4 values drawn and definition compares the network condition weighing this point.
Four. fringe node expands monitoring
Have one to contain certain domain test IP storehouse at present, IP number of addresses is N number of, and wherein only have an IP address to be IPA, this IP is a station server of data center, and the test of being partial to this time is exactly:
1. downloading rate test
[root@11011951～]#wget?http://IPA:80/lvs.lxdns.net/test.rar-O/dev/null
--2014-07-1110:04:20--http://IPA:80/lvs.lxdns.net/test.rar
Connecting?to?IPA:80...connected.
HTTP?request?sent,awaiting?response...200OK
Length:2097152(2.0M)[application/octet-stream]
Saving?to:`/dev/null'
100％[＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝>]2,097,1524.20M/s?in?0.5s
2. page poll tests
[root@11011951～]#pollurl?http://IPA:80/testcdn.htm；head-n?10pollUrl.temp
0
HTTP/1.0200OK
Content-Type:text/html
ETag:"2044265364"
Accept-Ranges:bytes
Last-Modified:Fri,06May?201107:59:23GMT
Content-Length:8
Connection:close
Date:Fri,11Jul?201402:04:27GMT
Server:WS?CDN?Server
These tests be all good at reaction test end intuitively to tested end access quality condition how.
If but IPB is not the server of oneself, and just one can the IP of ping testing.At this time just go to weigh network quality with time delay and packet loss
3.PING tests
[root@11011951～]#ping-fc?100IPB
PING?IPB(IPB)56(84)bytes?of?data.
..
---111.206.217.15ping?statistics---
100packets?transmitted,98received,2％packet?loss,time?1338ms
rtt?min/avg/max/mdev＝22.706/29.328/41.211/3.073ms,pipe?4,ipg/ewma13.517/28.441ms
Draw a threshold value through a large amount of test, if time delay within 60ms or packet loss within 1%, all can meet instructions for use.So just can make up the shortcoming can not removed to test downloading rate or page poll because of not being the server that can control and test, equally can go by ping testing the network quality obtaining overlay area, if the IP address of controllable node and uncontrollable node is contained in the test I P storehouse of an overlay area, can go in conjunction with two kinds of test results the network quality judging the overall situation, accomplish at utmost to judge network quality accurately.
In sum, embodiments of the invention are except monitoring fringe node, also newly-increased monitor data center Intranet environmental quality, control and measuring IDC bandwidth provider core switch end are to the network quality situation of node switch end, occurring that the situation that network quality declines can be got rid of in layering, the fastest orientation problem point by such layering monitoring.Further, embodiments of the invention except being monitored except speed by the file of download controllable node, then add the IP storehouse that monitored object region is not disposed in monitoring, reach monitoring there is the region monitoring blind spot by analysis monitoring result.By above method, embodiments of the invention finally improve monitoring coverage rate greatly, realize monitoring refinement layering, quick position fault point.Use between the internal data center that the method for the above embodiment of the present invention is adapted at CDN, accuracy availability to ensure that the method.
Although the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, change or the replacement of various equivalence also can be made when not departing from spirit of the present invention, therefore, as long as all will drop in the scope of claims of the application the change of above-described embodiment, modification in spirit of the present invention.
Claims (8)
1. a content distributing network quality control method, this content distributing network comprises data center, bandwidth provider switch and fringe node, and the method comprises the following steps:
Monitoring equipment in this data center inside carries out PING (Packet Internet Grope) test to the node server of this data center;
The bandwidth provider switch of networking from monitoring equipment pair and this data center of this data center inside carries out ping testing;
Test from the monitoring equipment edge node of this data center inside, if wherein this fringe node is controllable node, then carry out ping testing, downloading rate test and page Poll test at least part of, if this fringe node is uncontrollable node, then carry out ping testing;
Wherein controllable node is can be disposed by network entry the fringe node of HTTP website service that downloading rate test and page Poll test by the supervisor of data center, and uncontrollable node is can not by the supervisor of data center by network entry or the fringe node of HTTP website service can not disposing downloading rate test and page Poll test.
2. content distributing network quality control method as claimed in claim 1, is characterized in that,
After ping testing is carried out to the server of this data center, also comprise and the time delay of test acquisition and packet loss are compared with one group of first reference value, whether normal to determine the switch that tested node server or node server connect.
3. content distributing network quality control method as claimed in claim 1, is characterized in that,
After carrying out ping testing to the bandwidth provider switch of networking with this data center, whether the packet loss also comprised test obtains compares with one second reference value, normal to determine this bandwidth provider switch.
4. content distributing network quality control method as claimed in claim 1, is characterized in that, carries out ping testing, comprise and testing one or more interconnect port of this bandwidth provider switch the bandwidth provider switch of networking with this data center.
5. content distributing network quality control method as claimed in claim 1, is characterized in that, this fringe node be server, personal computer, panel computer, smart mobile phone, switch and router one of them.
6. content distributing network quality control method as claimed in claim 1, is characterized in that, tests the result drawn and comprises following part or all of: time delay, packet loss, mdev variance yields and downloading rate value to each controllable node.
7. content distributing network quality control method as claimed in claim 1, is characterized in that, test the result drawn comprise time delay and packet loss to each controllable node.
8. content distributing network quality control method as claimed in claim 1, is characterized in that, also comprise and obtain uncontrollable node as follows:
Obtain public IP storehouse, region;
This public IP storehouse is sorted out;
The test machine of diverse geographic location tests common objective IP;
By the test result of the different test machine of comparison, find out stable public jumping;
Public jumping is referred to one belong in the stable IP storehouse in this IP geographical position, operator, region.
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| CN107181644A (en) * | 2017-06-16 | 2017-09-19 | 北京小度信息科技有限公司 | For the method and apparatus for the network performance for monitoring network application |
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