CN105656705A - Method and device for detecting multicast function of access equipment - Google Patents
Method and device for detecting multicast function of access equipment Download PDFInfo
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- CN105656705A CN105656705A CN201410636922.1A CN201410636922A CN105656705A CN 105656705 A CN105656705 A CN 105656705A CN 201410636922 A CN201410636922 A CN 201410636922A CN 105656705 A CN105656705 A CN 105656705A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L43/00—Arrangements for monitoring or testing data switching networks
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Abstract
The invention provides a method and a device for detecting the multicast function of access equipment. The method comprises: receiving, by a multicast server, a multicast protocol message sent by the access equipment, wherein the multicast protocol message is used for calling a specified port capable of executing a loopback function in the multicast server; carrying out statistics on the multicast message traffic of the specified port; and judging whether the access equipment can execute the multicast function or not according to the statistical result. The method and the device solve the problem that relevant workers need to go to the access equipment for checking when whether the access equipment can normally execute the multicast function or not needs to be checked, improve the efficiency of checking the access equipment, and reduce the expenditure.
Description
Technical field
The present invention relates to the communications field, in particular to detection method and the device of access device multicast functionality.
Background technology
Along with the development of broadband access technology, nearly all place such as apartment house and hotel can be seenSee the business such as live of network convention TV (InternetProtocolTelevision is called for short IPTV).
In the swift and violent expansion of access device, a large amount of access devices all needs checking to use in the process of beginningWhether family can normally carry out the business such as IPTV is live, and access device in correlation technique generally all from local sideFar, near user, also in the time that needs detect access device, relevant engineer need to arrive useNear the manual checking and accepting that carries out a large amount of repetitions with portable computer family, for so big access of quantityEquipment well imagines that its workload is big, need to expend a large amount of manpowers, financial resources for this type of deployment acceptance work.If while occurring that in actual commercial process access device cannot normally access or access abnormal etc. complaint, also needCorrelation engineering teacher goes the relevant information of obtaining access device so that the analysis and solutions of multicast functionality to user place.
For in correlation technique in the time that needs check access device whether can normally carry out multicast functionality, need phaseThe problem that work people in pass checks to access device place in person, not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of detection method and device of access device multicast functionality, so thatSolve less in correlation technique in the time that needs check access device whether can normally carry out multicast functionality, need relevantThe problem that work people checks to access device place in person.
According to an aspect of the present invention, provide a kind of detection method of access device multicast functionality, having comprised:Multicast server receives the multicast protocol message that access device sends, and wherein, described multicast protocol message is for adjustingWith the designated port that can carry out loop fuction in described multicast server; Add up described designated port multicast messageFlow value; Judge according to statistics whether described access device can carry out multicast functionality.
Further, described multicast protocol message comprises that multicast joins message and multicast leave message.
Further, be described multicast while joining message at described multicast protocol message, add up described designated portThe flow value of multicast message comprises: described multicast server receives after joining message of described designated port loopback,Described designated port is joined in default multicast forward table; The described default multicast forward table of foundation is describedDesignated port forwarding multicasting message; Add up the flow value of multicast message described in described designated port.
Further, described multicast protocol message also comprises: multicast inquiry message, and at the described designated port of statisticsBefore the flow value of described multicast message, also comprise: described multicast server periodically sends multicast inquiry messageTo described access device; Described multicast server receives that described access device sends in response to described query messageMulticast joins message, to determine that described access device can normally forward described multicast message.
Further, judge according to statistics whether described access device can be carried out multicast functionality and comprise: sentenceWhether disconnected described flow value is greater than predetermined threshold, and in judged result, when being, described access device can be carried outThe forwarding of multicast message; In judged result, while being no, described access device can not be carried out the forwarding of multicast message.
Further, in the time that described multicast protocol message is described multicast leave message, add up described designated portThe flow value of multicast message comprises: described multicast server receives the multicast leave message that described access device sends,Wherein, described leave message is used to indicate and empties default multicast forward table; After described multicast forward table empties,Interrupt the forwarding of described designated port multicast message; Add up the flow value of the described multicast message of described designated port.
Further, judge according to statistics whether described access device can be carried out multicast functionality and comprise: sentenceWhether disconnected described flow value is less than predetermined threshold, and in judged result, when being, described access device can be carried outThe interruption of described multicast message; In judged result, while being no, described access device can not be carried out described multicastThe interruption of message.
According to another aspect of the present invention, provide a kind of checkout gear of access device multicast functionality, be positioned atMulticast server, comprising: receiver module, and the multicast protocol message sending for receiving access device, wherein,Described multicast protocol message can be carried out the designated port of loop fuction for calling described multicast server; SystemMeter module, for adding up the flow value of described designated port multicast message; Judge module, for tying according to statisticsFruit judges whether described access device can carry out multicast functionality.
Further, described multicast protocol message comprises that multicast joins message and multicast leave message.
Further, be described multicast while joining message at described multicast protocol message, described statistical module also wrapsDraw together: add unit, for receiving after the joining message of described designated port loopback, described designated port is addedEnter in default multicast forward table; Retransmission unit, for according to described default multicast forward table at described fingerFixed end mouth forwarding multicasting message; The first statistic unit, for adding up the stream of multicast message described in described designated portValue.
Further, described multicast protocol message also comprises: multicast inquiry message, and described statistical module also comprises:Transmitting element, for periodically sending multicast inquiry message to described access device; The first receiving element, forReceive described access device and send and join message in response to the multicast of described query message, to determine that described access establishesFor normally forwarding described multicast message.
Further, described judge module comprises: the first judging unit, and for judging that whether described flow value is largeIn predetermined threshold, in judged result, when being, described access device can be carried out the forwarding of multicast message; ?When judged result is no, described access device can not be carried out the forwarding of multicast message.
Further, in the time that described multicast protocol message is described multicast leave message, described statistical module comprises:The second receiving element, the multicast leave message sending for receiving described access device, wherein, described in leave reportLiterary composition is used to indicate and empties default multicast forward table; Interrupt location, after emptying at described multicast forward table,Interrupt the forwarding of described designated port multicast message; The second statistic unit, for adding up the institute of described designated portState the flow value of multicast message.
Further, described judge module comprises: whether the second judging unit is little for judging described flow valueIn predetermined threshold, in judged result, when being, described access device can be carried out the interruption of described multicast message;In judged result, while being no, described access device can not be carried out the interruption of described multicast message.
By the present invention, adopt multicast server to receive the multicast protocol message that access device sends, wherein, groupBroadcast protocol massages and can carry out the designated port of loop fuction for calling multicast server; Statistics designated portThe flow value of multicast message; Judge according to statistics whether access device can carry out the mode of multicast functionality,Solve in correlation technique in the time that needs check access device whether can normally carry out multicast functionality, needed relevantThe problem that work people checks to access device place in person, has improved the efficiency to access unit check, savesSpending.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part,Schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the detection method flow chart of the access device multicast functionality of the embodiment of the present invention;
Fig. 2 is according to the structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present invention;
Fig. 3 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionOne;
Fig. 4 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionTwo;
Fig. 5 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionThree;
Fig. 6 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionFour;
Fig. 7 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionFive;
Fig. 8 is the signal of protocol massages and multicast data flow trend in the test process of the optional embodiment according to the present inventionFigure.
Detailed description of the invention
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments. It should be noted that, do not rushingIn prominent situation, the feature in embodiment and embodiment in the application can combine mutually.
The detection method that a kind of access device multicast functionality is provided in the present embodiment, Fig. 1 is according to thisThe detection method flow chart of the access device multicast functionality of bright embodiment, as shown in Figure 1, this flow process comprises as followsStep:
Step S102: multicast server receives the multicast protocol message that access device sends;
Wherein, multicast protocol message can be carried out the designated port of loop fuction for calling multicast server;
Step S104: the flow value of statistics designated port multicast message;
Step S106: judge according to statistics whether access device can carry out multicast functionality.
By the present embodiment, adopt multicast server to receive the multicast protocol message that access device sends, wherein,Multicast protocol message can be carried out the designated port of loop fuction for calling multicast server; Statistics designated endsThe flow value of mouth multicast message; Judge according to statistics whether access device can carry out the mode of multicast functionality,Solve in correlation technique in the time that needs check access device whether can normally carry out multicast functionality, needed relevantThe problem that work people checks to access device place in person, has improved the efficiency to access unit check, savesSpending.
Preferably loopback interface of the designated port relating in above-mentioned steps in the present embodiment, and loopback meritCan refer to after calling this loopback interface, loopback interface sends to multicast message the port of access device, thisTime this access device port in connection status, multicast message is by the port loopback of this access device, by upperThe mode of stating simulates loopback interface and receives the multicast protocol message that access device sends, and is used for detecting access deviceWhether packet receiving is normal.
And after above-mentioned test finishes, closing loop fuction is in order not allow the multicast message of upstream device be encircledReturn, thereby cause the impact of first line of a couplet equipment, therefore, after loopback success, need to close loop fuction.
The multicast protocol message relating at the present embodiment has multiple, at an optional embodiment of the present embodimentIn can join message and multicast leave message for multicast.
Judge that in the present embodiment mode that whether multicast message can normally arrive access device has multiple, andIn an optional embodiment of the present embodiment, be at multicast protocol message that multicast has adopted while joining message as followsMode, which comprises the steps:
Step S11: multicast server is received after joining message of designated port loopback, designated port is joinedIn default multicast forward table;
Step S12: according to default multicast forward table at designated port forwarding multicasting message;
Step S13: the flow value of statistics designated port multicast message.
Wherein, in the optional embodiment of the present embodiment, can formulate port by statistics multicast messageThe number of each second bag or the mode of wrapping bits number each second are obtained this flow value, it should be noted that above-mentioned systemThe mode of meter flow value is only an optional embodiment of the present embodiment, the present invention is not formed to restriction,Other modes that can count multicast message flow value are also within protection scope of the present invention.
In addition, before above-mentioned steps S13, in order to count correct flow value, at the present embodimentOptional embodiment has adopted following mode to determine that whether access device is also at forwarding multicasting message, which bagDraw together following steps:
Step 21: multicast server periodically sends multicast inquiry message to access device;
Step 22: multicast server receives access device transmission and joins message in response to the multicast of query message,To determine that access device can normal forwarding multicasting message.
In an optional way of example in the present embodiment, can be by following according to the mode of statisticsJudge whether access device can carry out the forwarding of normal multicast message, and which is: whether judge flow valueBe greater than predetermined threshold, in judged result, when being, access device can be carried out the forwarding of multicast message, is sentencingWhen disconnected result is no, access device can not be carried out the forwarding of multicast message. It should be noted that aforesaid wayAlso be only optional embodiment of the present invention mode, the present invention do not formed to restriction.
In another optional embodiment of the present embodiment, provide a kind of and judged whether multicast message can be justNormal mode of interrupting, in this embodiment, multicast protocol message is multicast leave message, therefore, statistics is specifiedThe flow value of port multicast message can be realized in the following manner, and which comprises the following steps:
Step S31: multicast server receives the multicast leave message that access device sends, wherein, leave messageBe used to indicate and empty default multicast forward table;
Step S32: after multicast forward table empties, interrupt the forwarding of designated port multicast message;
Step S33: the flow value of the multicast message of statistics designated port.
In the mode of above-mentioned optional embodiment, judge according to statistics whether access device can normally be carried outThe terminal of multicast message can realize in the following manner: judge whether flow value is less than predetermined threshold, in judgementResult is when being, and access device can be carried out the interruption of multicast message, in judged result while being no, and accessEquipment can not be carried out the interruption of multicast message.
A kind of checkout gear of access device multicast functionality is also provided in the present embodiment, and this device is for realizingAbove-described embodiment and preferred embodiment, carried out repeating no more of explanation. As used below, artThe combination of software and/or the hardware of predetermined function can be realized in language " module ". Although following examples are describedDevice preferably realize with software, but hardware, or the realization of the combination of software and hardware is also possibleAnd conceived.
Fig. 2 is according to the structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present invention, as figureShown in 2, this device comprises: receiver module 22, and the multicast protocol message sending for receiving access device, itsIn, multicast protocol message can be carried out the designated port of loop fuction for calling multicast server; Statistics mouldPiece 24 is of coupled connections with receiver module 24, for adding up the flow value of designated port multicast message; Judge module26 are of coupled connections with statistical module 24, for judging according to statistics whether access device can carry out multicastFunction.
Alternatively, multicast protocol message comprises that multicast joins message and multicast leave message.
Fig. 3 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionOne, as shown in Figure 3, be multicast while joining message at multicast protocol message, statistical module 24 comprises: addUnit 32, for receiving after the joining message of designated port loopback, joins default group by designated portIn broadcasting and transmitting; Retransmission unit 34 with add unit 32 to be of coupled connections, for the multicast forward table according to defaultAt designated port forwarding multicasting message; The first statistic unit 36 is of coupled connections with retransmission unit 34, for statisticsThe flow value of designated port multicast message.
Fig. 4 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionTwo, multicast protocol message also comprises: multicast inquiry message, and as shown in Figure 4, statistical module 24 also comprises:Transmitting element 42 is of coupled connections with retransmission unit 34, for periodically sending multicast inquiry message to access device;The first receiving element 44 is of coupled connections with transmitting element 42, sends in response to inquiry report for receiving access deviceThe multicast of literary composition joins message, to determine that access device can normal forwarding multicasting message.
Fig. 5 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionThree, as shown in Figure 5, judge module 26 comprises: the first judging unit 52, and for judging that whether flow value is largeIn predetermined threshold, in judged result, when being, access device can be carried out the forwarding of multicast message; In judgementWhen result is no, access device can not be carried out the forwarding of multicast message.
Fig. 6 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionFour, as shown in Figure 6, in the time that multicast protocol message is multicast leave message, statistical module 24 also comprises: theTwo receiving elements 62, the multicast leave message sending for receiving access device, wherein, leave message is used forInstruction empties default multicast forward table; Interrupt location 64 and the second receiving element 64 are of coupled connections, forAfter multicast forward table empties, interrupt the forwarding of designated port multicast message; The second statistic unit 66 and terminal listUnit 64 is of coupled connections, for adding up the flow value of multicast message of designated port.
Fig. 7 is according to the optional structured flowchart of the checkout gear of the access device multicast functionality of the embodiment of the present inventionFive, as shown in Figure 7, judge module 26 also comprises: the second judging unit 72, and for whether judging flow valueBe less than predetermined threshold, in judged result, when being, access device can be carried out the interruption of multicast message; SentencingWhen disconnected result is no, access device can not be carried out the interruption of multicast message.
For better the present invention will be described, be illustrated below in conjunction with this optional enforcement.
The object of this optional embodiment is to provide the method for the long-range examination of a kind of multicast. Wherein, multicast is long-range testsAttest function in the method for receiving comprises multicast protocol report: the report that joins message, leave message leave, inquiryThe test of message query, multicast forward table write hardware case and the whether actual user of arrival of group business streamThe test of port. Its objective is for judging that multicast service self-inspection whether normal and in engineering application judges.
And the method for the long-range examination of above-mentioned multicast comprises following two aspects: the 1) normal process of multicast protocol reportAnd forward; 2) flux of multicast normal replication and interruption.
For above-mentioned two aspects, the long-range Acceptance Test function realizing method of multicast comprises following components:
Step S41: the transmission joining message;
Step S42: judge whether multicast data flow normally arrives user's method;
Step S43: the prerequisite that judges multicast service by traffic monitoring;
Step S44: the transmission of leave message;
Step S45: judge the method whether multicast data flow ends;
Step S46: the transmission of query message.
In order to understand better the optional embodiment of the present invention, optional to the present invention below in conjunction with accompanying drawing and routine modeMode is described in detail.
Fig. 8 is the signal of protocol massages and multicast data flow trend in the test process of the optional embodiment according to the present inventionFigure, represents multicast Media Stream trend at arrow as virtual in Fig. 8, and solid arrow represents report, leave, queryMessage trend, in conjunction with Fig. 8, the long-range Acceptance Test function realizing method of the multicast of the optional example of the present invention comprises:
Step S1: the transmission joining message;
Wherein, multicast module structure report message, by the MUX interface of giving out a contract for a project, delivers to carrying message,Call carrying loopback interface, open loop fuction, it is (passable that message is mail to the user side that will test by loopback interfaceBe single port, also can test multiple ports), call after this loopback interface the port that at this moment will testCan report link setup be link-up, message will be at user side loopback, simulates port receive client and send out with thisThe report bag sending, for checking that whether line card packet receiving is normal; In order not allow the multicast data flow of drawing by loopback,Thereby cause the impact to first line of a couplet equipment, after unlatching loop fuction returns successfully, report message loopback becomesMerit, should close loop fuction immediately.
If opened multicast enable, when multicast module is received after the report message of this loopback, then willReport message is delivered to imgp module normal process (mainly multicast forward table being write to chip); If multicastThrough (transparent transmission), exchanges away toward the source port of configuration.
Multicast server is received after the report of network element, multicast data flow is guided to the network element that will test, and network element is according to groupBroadcast and transmit (VLAN, MAC, PORT), after copying, exchange to corresponding user's receiving port.
Step S2: judge whether multicast data flow normally arrives user;
Wherein, in the optional embodiment of the present invention, can utilize and be similar to video-monitor module multicast is lookedFrequently flow monitoring judges that whether multicast data flow is normal. Because video-monitor can be at exchange chip upper inlet placeAdd up certain multicast, for example: according to the number pps wrapping the each second of multicast MAC or multicast channel IP streamOr each second wrap bits and count bps, open after this flux of multicast monitoring or statistical function, this multicast data flow can be byExchange to user's side, also just do not have before next sending out leave message and enable after loopback interface, this multicast data flowThe risk that loopback gets on. At this moment the flux of multicast counting on (pps/bps) is reported to webmaster by SNMP.
It should be noted that: if inundation stream sees whether chip has pair unknown multicast to flow the merit of falling to dropCan, 9806/F822 has this function at present. Otherwise can affect the statistics of monitored flux of multicast.
Due to after report sends successfully, loopback interface disable, at this moment tested port is in link-downState, in the statistical information under this port, comprises that the statistics of multicast (agreement, media data) may be added up notArrive.
Step S3: the prerequisite that judges multicast service by traffic monitoring;
Wherein, this prerequisite comprises following two aspects:
In A, webmaster, first obtain the situation of network element Multicast configuration, for incongruent configuration, directly return to mistake.So-called multicast configures normally, comprises: multicast vlan, and source-port, receive-port, whether groupCorrectly configure.
B, as the multicast channel of simulation test, sending out before report, can remove user's point of this channelBroadcast situation, and because video-monitor terminates in exchange chip the multicast data flow that will monitor, can be toward usingFamily port sends, and the situation that can have influence on other ports here and watch this multicast channel, so as simulation testMulticast channel, can not have other users to watch.
Step S4: the transmission of leave message;
Wherein, leave message is left in multicast module structure, by the MUX interface of giving out a contract for a project, message is delivered to and is heldCarry, call carrying loopback interface, the message of structure is mail to the user side that will test, message will be at user's end ringReturn, analog port receives that client sends leave bag, after unlatching loop fuction returns successfully, i.e. and leaveAfter message sends successfully, should close immediately loop fuction, if opened multicast enable, through MUX module,Directly deliver to multicast module and process (remove multicast forwarding list item, stop multicast data flow and be forwarded to the registered permanent residence), asFruit imgpthrough, exchanges away toward the source port of configuration.
Receive for multicast server after the leave message of network element, interrupt multicast data flow.
Step S5: judge whether multicast data flow ends;
The same with the processing mode that joins message, as long as the data that the multicast channel of monitoring is come out are passed to webmaster.
Step S6: the transmission of query message;
Wherein, the query message sending for multicast server, after exchange chip bag, delivers to multicast mouldPiece, at this moment, in order to respond this query report, does not allow multicast data flow interrupt, and in multicast module, will be similar to proxyThe report report of response query in pattern situation, is not forwarded to this query report to use the registered permanent residence. To what receiveGeneral query or special query bag, the multicast group of this emulation all will be done corresponding response.
Below the explanation of the multicast protocol message to relating in this optional example:
A: the obtaining of source IP in IP head in multicast protocol message;
Source IP in the IP head of multicast protocol message fills in, and can adopt IP that DHCP obtains as imgpSource IP; Also can IP of static configuration as the source IP of imgp. Selectable on webmastering software.In MAP platform, can utilize existing DHCP module to obtain source IP.
B: the source MAC in multicast protocol message in Ethernet header obtains;
Source MAC in the Ethernet header of multicast protocol message fills in, and can take the MAC in MAC pond,Also can adopt a MAC of random generation, or with being with interior MAC.
The method of simulating multicast by the telemanagement of above-mentioned optional embodiment, effectively improves access device and testsReceive the efficiency solving with fault, all operations and result demonstration all complete long-range, are not only conducive to improve workMake efficiency, also contribute to assist engineer to carry out the checking and accepting of the correlation functions such as multicast.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this areaArt personnel, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, instituteDo any amendment, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a detection method for access device multicast functionality, is characterized in that, comprising:
Multicast server receives the multicast protocol message that access device sends, wherein, and described multicast protocol reportThe designated port of loop fuction can be carried out in literary composition for calling described multicast server;
Add up the flow value of described designated port multicast message;
Judge according to statistics whether described access device can carry out multicast functionality.
2. method according to claim 1, is characterized in that, described multicast protocol message comprises that multicast addsMessage and multicast leave message.
3. method according to claim 2, is characterized in that, is described multicast at described multicast protocol messageWhile joining message, the flow value of adding up described designated port multicast message comprises:
Described multicast server is received after joining message of described designated port loopback, by described designated portJoin in default multicast forward table;
The described default multicast forward table of foundation is at described designated port forwarding multicasting message;
Add up the flow value of multicast message described in described designated port.
4. method according to claim 3, is characterized in that, described multicast protocol message also comprises: multicastQuery message, before the flow value of multicast message described in the described designated port of statistics, also comprises:
Described multicast server periodically sends multicast inquiry message to described access device;
Described multicast server receives described access device transmission and adds in response to the multicast of described query messageEnter message, to determine that described access device can normally forward described multicast message.
5. method according to claim 1, is characterized in that, judges described access device according to statisticsWhether can carry out multicast functionality comprises:
Judge whether described flow value is greater than predetermined threshold, in judged result, when being, described access is establishedThe standby forwarding that can carry out multicast message;
In judged result, while being no, described access device can not be carried out the forwarding of multicast message.
6. method according to claim 2, is characterized in that, is described multicast at described multicast protocol messageWhen leave message, the flow value of adding up described designated port multicast message comprises:
Described multicast server receives the multicast leave message that described access device sends, wherein, described fromOpening message is used to indicate and empties default multicast forward table;
After described multicast forward table empties, interrupt the forwarding of described designated port multicast message;
Add up the flow value of the described multicast message of described designated port.
7. method according to claim 6, is characterized in that, judges described access device according to statisticsWhether can carry out multicast functionality comprises:
Judge whether described flow value is less than predetermined threshold, in judged result, when being, described access is establishedThe standby interruption that can carry out described multicast message;
In judged result, while being no, described access device can not be carried out the interruption of described multicast message.
8. a checkout gear for access device multicast functionality, is applied to multicast server, it is characterized in that, comprising:
Receiver module, the multicast protocol message sending for receiving access device, wherein, described multicast is assistedView message can be carried out the designated port of loop fuction for calling described multicast server;
Statistical module, for adding up the flow value of described designated port multicast message;
Judge module, for judging according to statistics whether described access device can carry out multicast functionality.
9. device according to claim 8, is characterized in that, described multicast protocol message comprises that multicast addsMessage and multicast leave message.
10. device according to claim 9, is characterized in that, is described multicast at described multicast protocol messageWhile joining message, described statistical module also comprises:
Add unit, for receiving after the joining message of described designated port loopback, by described designated endsMouth joins in default multicast forward table;
Retransmission unit, for according to described default multicast forward table at described designated port forwarding multicasting reportLiterary composition;
The first statistic unit, for adding up the flow value of multicast message described in described designated port.
11. devices according to claim 10, is characterized in that, described multicast protocol message also comprises: groupBroadcast query message, described statistical module also comprises:
Transmitting element, for periodically sending multicast inquiry message to described access device;
The first receiving element, sends the multicast in response to described query message for receiving described access deviceJoin message, to determine that described access device can normally forward described multicast message.
12. devices according to claim 8, is characterized in that, described judge module comprises:
The first judging unit, for judging that whether described flow value is greater than predetermined threshold, in judged result isWhile being, described access device can be carried out the forwarding of multicast message; In judged result while being no, instituteState access device and can not carry out the forwarding of multicast message.
13. devices according to claim 9, is characterized in that, are described multicast at described multicast protocol messageWhen leave message, described statistical module comprises:
The second receiving element, the multicast leave message sending for receiving described access device, wherein, instituteStating leave message is used to indicate and empties default multicast forward table;
Interrupt location, after emptying at described multicast forward table, interrupts described designated port multicast messageForwarding;
The second statistic unit, for adding up the flow value of described multicast message of described designated port.
14. devices according to claim 13, is characterized in that, described judge module comprises:
The second judging unit, for judging that whether described flow value is less than predetermined threshold, in judged result isWhile being, described access device can be carried out the interruption of described multicast message; In judged result while being no,Described access device can not be carried out the interruption of described multicast message.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636922.1A CN105656705A (en) | 2014-11-12 | 2014-11-12 | Method and device for detecting multicast function of access equipment |
| PCT/CN2015/072930 WO2016074366A1 (en) | 2014-11-12 | 2015-02-12 | Method and device for testing multicast function of access device |
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| CN201410636922.1A CN105656705A (en) | 2014-11-12 | 2014-11-12 | Method and device for detecting multicast function of access equipment |
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| CN (1) | CN105656705A (en) |
| WO (1) | WO2016074366A1 (en) |
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| CN102355507B (en) * | 2011-09-29 | 2014-05-14 | 南京国电南自轨道交通工程有限公司 | Serial communication interface with functions of self-detection and conflict detection |
| CN102984035A (en) * | 2013-01-04 | 2013-03-20 | 盛科网络（苏州）有限公司 | Loopback test method and system of packet loss probability of network data |
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