CN101321095A - Communication system implementing link measurement and its link measuring method - Google Patents
Communication system implementing link measurement and its link measuring method Download PDFInfo
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- CN101321095A CN101321095A CNA2008100685681A CN200810068568A CN101321095A CN 101321095 A CN101321095 A CN 101321095A CN A2008100685681 A CNA2008100685681 A CN A2008100685681A CN 200810068568 A CN200810068568 A CN 200810068568A CN 101321095 A CN101321095 A CN 101321095A
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Abstract
The invention discloses a communication system that realizes link measurement and link measurement method thereof. The link measurement method includes the steps of: configuring a probing message by an access node, parsing the probing message to obtain a piece of single link probing data and report it to a network management back stage or send the probing message to the access node. The access node parses the sent probing message to obtain a piece of double link probing data and report it to a network management back stage; the network management back stage obtains the link state information in real time according to received single link probing data and double link probing data. The measurement method of the invention based on an active measurement technology analyzes inner link quality problem in the signaling message in the system and positions the problem rapidly in the system, which improves problem screening efficiency.
Description
Technical field
The present invention relates to communication system and inner link method of measurement thereof in the IP network.
Background technology
Propelling along with the next generation network construction and the network integration, IP (Internet Protocol, being Internet Protocol) group technology just is used widely in telecommunications network, traditional communication network is IPization progressively, and the contradiction between high availability that connectionless unreliability of IP network itself and telecommunication apparatus require and service quality guarantee becomes the essential problem that solves of IP-based communication system.In order to gather the index of correlation data of reflection link-quality,, must adopt Network Measurement Technologies that communication system is carried out Measurement and analysis as parameters such as connectivity of link, packet loss, time delay and shakes.The most frequently used Measurement and analysis method is exactly the analyzer of connecting to the Net on the switch of network boundary or crucial link at present, adopt network analyzer packet capturing or the packet capturing of mirror image internal media face port to analyze, but along with the capacity of office is increasing, network interface is more and more, the method that this packet capturing is analyzed can not be found link failure rapidly and effectively locate this link problem, particularly network element internal packet capturing, implement also very difficult, such as, if switch that links to each other with interface board and router configuration multi-next-hop, then a session message can be come in from a plurality of ports, measure configuration module and need control a plurality of interface boards, and the message of catching need be converged and deliver to data analysis module by special inner link, so not only take the intercommunication bandwidth, increase system loading, and shine upon a plurality of ports and also may cause the inner exchanging packet loss.
As seen, prior art has yet to be improved and developed.
Summary of the invention
The objective of the invention is to, a kind of communication system and link method of measurement thereof that realizes that link is measured is provided, the link quality monitoring mode is single to overcome in the present IP network, the packet capturing technology realizes difficulty in the network element, is unfavorable for finding rapidly and problem such as navigation system fault.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of link method of measurement, it may further comprise the steps:
A, access node are constructed a probe messages, and send described probe messages to the target acquisition module;
B, described target acquisition module receive described probe messages, resolve described probe messages with obtain an one way link detection data and report the webmaster backstage or the described probe messages of loopback to described access node, described access node is resolved the probe messages of described loopback to obtain two-way link detection data and to report described webmaster backstage;
C, described webmaster backstage obtain link-state information in real time according to the one way link detection data or the two-way link detection data of its reception.
Described link method of measurement, wherein, in the described steps A, signaling processing module or session processing module generate one and measure collocation strategy; Described access node is downloaded described measurement collocation strategy, generates a detection feature heading to construct described probe messages according to described measurement collocation strategy.
Described link method of measurement, wherein, described measurement collocation strategy is that logical links is surveyed or physical link is surveyed to determine according to surveying attribute,
Survey if belong to logical links, then described measurement collocation strategy comprises that the source termination goes into node information and destination signaling processing module information or destination session processing module information;
Survey if belong to physical link, then described measurement collocation strategy comprises that the source brings out port information and destination incoming interface information.
Described link method of measurement, wherein, among the described step C, when described link-state information was fault, the link failure alarm was sent on described webmaster backstage.
Described link method of measurement, wherein, described step B also comprises:
B1, described target acquisition module judge according to the measurement type information in the described probe messages whether it measures type is that one way link is measured;
B2 is if the described probe messages of then described target acquisition module parses is to obtain described one way link detection data;
Otherwise described target acquisition module is stamped it and is received time stamp on described probe messages, gives described access node with described probe messages loopback.
Described link method of measurement, wherein, described one way link detection data comprises link unilaterally connected and One Way Delay data, described two-way link detection data comprises diconnected and path round-trip delay data.
Described link method of measurement, wherein, described step B also comprises: if described access node does not receive the probe messages of described loopback in the time when one is scheduled to, the two-way link measurement data that then reports the webmaster backstage is that link is unreachable.
A kind of communication system that realizes that link is measured, it comprises:
One signaling processing module or session processing module, it is used for receiving and resolving a link detection message to obtain an one way link detection data, and perhaps the described link detection message of loopback is to the access node that sends described link detection message;
One access node, it is used to send described link detection message to described signaling processing module or session processing module, and resolves link detection message by described signaling processing module or the loopback of session processing module to obtain two-way link detection data;
One webmaster backstage, its be used to receive the one way link detection data that reports by described signaling processing module or session processing module or the two-way link probe messages that reports by described access node with Link State in this communication system of real-time acquisition.
Described communication system wherein, is provided with the time stamp have when being used for the described signaling processing module of mark or session processing module and receiving described link detection message in the link detection message of described loopback.
Described communication system, wherein, described link detection message comprises the measurement type information, described measurement type information is used for the mark one way link and surveys type or two-way link detection type.
Communication system provided by the invention and link method of measurement thereof, based on the active measuring technique logical links of physical link in the network element and Business Stream correspondence is carried out quality monitoring and early warning, avoided implementing the interior packet capturing of network element of comparison difficulty, and reached the purpose that link is measured, because the characteristic of active measurement of the present invention and access node distributed measurement, the inside expense of whole communication system is also very little.
Description of drawings
Fig. 1 is the schematic diagram of a net element communication system architecture of the embodiment of the invention;
Fig. 2 is that the network element system inner link of Fig. 1 is measured schematic flow sheet.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 has provided the inside of a network element 100 and has formed structure, and this network element 100 is a communication system, and it is made up of a plurality of access nodes, a plurality of signaling processing module and a plurality of session processing module that connect external network.Described a plurality of access node is respectively access node 1 and access node 2, and described a plurality of signaling processing modules are respectively signaling processing module 1 and signaling processing module 2, and described a plurality of session processing modules are respectively session processing module 1 and session processing module 2.
Each access node can have a plurality of outside ports, is connected with external network communication respectively, be responsible for receiving outside message, and other processing modules in the extremely described network element 100 of the described message of classification transmission.Particularly, each access node is forwarded to described a plurality of signaling processing module to carry out protocol processes with signaling message, and each access node is forwarded to described a plurality of session processing module to carry out encoding and decoding speech or Data Stream Processing with session medium bread literary composition.
Described network element 100 also has a webmaster backstage, and it disposes the relation that communicates to connect between each access node and each signaling processing module, each session processing module.Certainly, each access node can also be set up communication with corresponding signaling processing module or session processing module by the Signalling exchange mode.In the present embodiment, set up between access node 1 and the session processing module 1 and communicate by letter, i.e. the session data stream of setting up on the session processing module 1 all will be by access node 1 access external network.Be appreciated that and set up a logical links between access node 1 and the session processing module 1.
Be appreciated that each access node has a plurality of internal transmit pories, described logical links can corresponding many physical links.
Preferably, this network element 100 also has at least one network exchange module, and each access node and corresponding signaling processing module or corresponding session processing module realize communicating to connect by described network exchange module.
Below in conjunction with Fig. 2, the described network element 100 that describing the embodiment of the invention in detail provides carries out the method that link is measured, and it may further comprise the steps:
A, described signaling processing module 1 or session processing module 1 generate measures collocation strategy;
Particularly, after S301, signaling processing module 1 starts, if with other signaling end points between dispose static the connection, generate the measurement collocation strategy according to this static state link information;
Described signaling end point is the Signalling exchange object, can for access node of its Signalling exchange etc.
After S302, session processing module start,, delete its corresponding collocation strategy item for the session of removing for the synchronous measurement collocation strategy item that generates a correspondence of each newly-built session;
Described measurement collocation strategy comprises the measurement type, surveys attribute (logical links is surveyed or physical link is surveyed), the transport layer information of services addresses and user's join dependency.
Described measurement type is that one way link is surveyed or two-way link is surveyed;
Survey if belong to logical links, then described measurement collocation strategy comprises that also the source termination goes into node information and destination signaling processing module information or destination session processing module information.
Survey if belong to physical link, then described measurement collocation strategy comprises that also the source brings out port information and destination incoming interface information.
B, described access node 1 are downloaded described measurement collocation strategy, generate a detection feature heading according to described measurement collocation strategy;
Particularly, S303, described access node 1 starts the back and downloads it from described signaling processing module 1 and session processing module 1 and measure collocation strategy, and maintenance and collocation strategy are synchronous.
Here, access node 1 is set up related with signaling processing module 1, session processing module 1 respectively or is established a communications link.
S304, described access node 1 generate the feature heading of surveying according to described collocation strategy, and the feature message comprises IP layer information and transport layer information;
Described feature message is indifferent to the upper-layer service data;
C, described access node 1 send probe messages to object module according to probe messages of described detection feature heading structure;
Particularly, S305, described access node 1 receive one and measure instruction, and the select target detecting module navigates to the characteristic of correspondence heading, constructs described probe messages.
Described probe messages comprises that probe messages sign, probe messages sequence number and source end send time stamp; The source end promptly is the source end that sends probe messages, promptly described access node 1.
Described target acquisition module is the module as the detection of a target, can be signaling processing module or session processing module.
S306, access node initiate initiatively to measure promptly to send probe messages to the target acquisition module;
Described measurement instruction can be for regularly measuring or measuring in real time.
It is probe messages that described probe messages sign is used to indicate this message.Described probe messages sign also comprises the measurement type.
D, target acquisition module receive described probe messages, and the record detection data also reports to the webmaster backstage;
Particularly, S307, target acquisition module receive probe messages; Particularly, target acquisition module is separated probe messages according to described probe messages sign.
S308, target acquisition module judge whether its measurement type is unidirectional measurement:
If, then carry out S309, promptly note the one way link detection data; Described detection data comprises data such as link unilaterally connected and One Way Delay.
If not, promptly described measurement type is a bidirectional measurement, then carries out S310, S311 and S312 successively:
S310, target acquisition module are stamped destination and are received time stamp on described probe messages, give described access node 1 with this probe messages loopback; Be appreciated that among the step S310 that the target acquisition module is not done upper-layer service to described probe messages and handled, directly stamp described destination and receive time stamp.Be appreciated that described access node 1 goes into node for the source termination.
S311, described access node 1 receive the probe messages of loopback;
If access node 1 is received the probe messages of loopback in timing, think and survey successfully, otherwise failure reports this link of webmaster backstage unreachable;
S312, described access node 1 are resolved probe messages information, and record two-way link detection data, i.e. detection data such as diconnected and path round-trip delay;
After S309 or after the S312, carry out S313, be about to detection data and report the webmaster backstage;
The real-time monitoring link status of detection data that E, webmaster backstage basis report is also warned link failure.
S314, webmaster backstage receive the detection data that reports, and all controlled link states in the network element are monitored in real time, and the link failure that takes place is carried out early warning.
The link method of measurement of the embodiment of the invention, use initiatively to measure and realize the network link status measurement, it also can be applicable to supervise the link of measuring between the different network systems, as long as have session or transport layer relation between two network nodes, the logical link state of bearer service between it measured with regard to realizing.
In the link method of measurement of the embodiment of the invention, realize measurement with the form of probe messages to link-quality, this method, be actually internally and parse key message in the signaling and media stream message, whether have serious packet loss as link, port that session is used and sequence number etc. make things convenient for analyzing communication internal system link-quality problem, and rapid orientation problem when going wrong in communication system inside, improve investigation problem efficient.
Be appreciated that the link method of measurement that the embodiment of the invention provides has following advantage:
At first, use initiatively metering system measurement communication link quality, the data traffic of introducing is very little, the huge overhead of having avoided inner packet capturing to bring;
Secondly, use distributed detection mode, intrasystem module can not increase tangible load because carrying out link detection, can not produce interference to Business Processing;
Once more, select internal physical link or logical links to measure, support static state is connected the appointment measurement of regularly measuring with to the session channel (promptly dynamically being connected) of dynamic creation according to measuring collocation strategy;
At last, the source module and the object module that send probe messages can report to measurement result the webmaster backstage, by the state variation of the crucial link of webmaster backstage centralized monitor, potential link problem are carried out early warning, the real-time early warning link-quality worsens, and is convenient to the user and analyzes and investigate fault timely.
In sum, the link method of measurement of the embodiment of the invention, based on the active measuring technique link in the network element is managed and monitors, compare with additive method, it is little to have the intercommunication bandwidth occupancy, do not increase advantages such as internal module system loading, simultaneously can be according to measuring collocation strategy customization link detection mode flexibly, can both well support the connection of static configuration and the session channel of dynamic creation, has extensive applicability, real-time monitoring to the chaining key line state can help the manager to find potential link-quality problem rapidly, increases the reliability of the network equipment.
Concrete enforcement part in the above specification, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1, a kind of link method of measurement, it may further comprise the steps:
A, access node are constructed a probe messages, and send described probe messages to the target acquisition module;
B, described target acquisition module receive described probe messages, resolve described probe messages with obtain an one way link detection data and report the webmaster backstage or the described probe messages of loopback to described access node, described access node is resolved the probe messages of described loopback to obtain two-way link detection data and to report described webmaster backstage;
C, described webmaster backstage obtain link-state information in real time according to the one way link detection data or the two-way link detection data of its reception.
2, link method of measurement as claimed in claim 1, it is characterized in that, in the described steps A, signaling processing module or session processing module generate one and measure collocation strategy, described access node is downloaded described measurement collocation strategy, generates a detection feature heading to construct described probe messages according to described measurement collocation strategy.
3, link method of measurement as claimed in claim 2 is characterized in that, described measurement collocation strategy is that logical links is surveyed or physical link is surveyed to determine according to surveying attribute;
Survey if belong to logical links, then described measurement collocation strategy comprises that the source termination goes into node information and destination signaling processing module information or destination session processing module information;
Survey if belong to physical link, then described measurement collocation strategy comprises that the source brings out port information and destination incoming interface information.
4, link method of measurement as claimed in claim 1 is characterized in that, among the described step C, when described link-state information was fault, the link failure alarm was sent on described webmaster backstage.
5, link method of measurement as claimed in claim 1 is characterized in that, described step B also comprises:
B1, described target acquisition module judge according to the measurement type information in the described probe messages whether it measures type is that one way link is measured;
B2 is if the described probe messages of then described target acquisition module parses is to obtain described one way link detection data; Otherwise described target acquisition module is stamped it and is received time stamp on described probe messages, and gives described access node with described probe messages loopback.
6, as claim 1 or 5 described link method of measurement, it is characterized in that described one way link detection data comprises link unilaterally connected and One Way Delay data, described two-way link detection data comprises the connective and link round-trip delay data of link bidirectional.
7, as claim 1 or 5 described link method of measurement, it is characterized in that, described step B also comprises: if described access node does not receive the probe messages of described loopback in a scheduled time, the two-way link detection data that then reports the webmaster backstage is that link is unreachable.
8, a kind of communication system that realizes that link is measured, it comprises:
One signaling processing module or session processing module, it is used for receiving and resolving a link detection message to obtain an one way link detection data, and perhaps the described link detection message of loopback is to the access node that sends described link detection message;
One access node, it is used to send described link detection message to described signaling processing module or session processing module, and resolves link detection message by described signaling processing module or the loopback of session processing module to obtain two-way link detection data;
One webmaster backstage, its be used to receive the one way link detection data that reports by described signaling processing module or session processing module or the two-way link probe messages that reports by described access node with Link State in this communication system of real-time acquisition.
9, communication system as claimed in claim 8 is characterized in that, the time stamp have when being used for the described signaling processing module of mark or session processing module and receiving described link detection message is set in the link detection message of described loopback.
10, communication system as claimed in claim 8 is characterized in that, described link detection message comprises the measurement type information, and described measurement type information is used for the mark one way link and surveys type or two-way link detection type.
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| CN106952657A (en) * | 2016-01-06 | 2017-07-14 | 中国移动通信集团公司 | A kind of speech quality detection method and device |
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| CN117880055A (en) * | 2024-03-12 | 2024-04-12 | 灵长智能科技(杭州)有限公司 | Network fault diagnosis method, device, equipment and medium based on transmission layer index |
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