CN111327478A - Network measurement method and device, equipment and storage medium - Google Patents
Network measurement method and device, equipment and storage medium Download PDFInfo
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- CN111327478A CN111327478A CN202010130963.9A CN202010130963A CN111327478A CN 111327478 A CN111327478 A CN 111327478A CN 202010130963 A CN202010130963 A CN 202010130963A CN 111327478 A CN111327478 A CN 111327478A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
Abstract
The application discloses a network measurement method, which comprises the steps of inserting a test field into a data message, then forwarding the data message into a tunnel, receiving the data message and recording various parameter information in the data message when the data message comes out of the tunnel, wherein the parameter information comprises the test field and a timestamp, and the obtained quality condition can be used for performing intelligent service routing and quality of service (QOS) control by acquiring the quality condition of the network according to the parameter information. Because the test field is directly inserted into the data message of the user flow, the data in the data message of any user flow is not changed, the integrity and the safety of the user data can be ensured, meanwhile, the test message and the data message are the same message, the packet-by-packet transmission state evaluation based on the current tunnel can be realized, and the service quality of the user service can be truly reflected.
Description
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a network measurement method.
Background
With the continuous expansion of network scale and the diversified deployment of services, how to effectively acquire network state information is crucial to network operation maintenance and optimization. Network measurement is generally divided into two modes, namely active measurement and passive measurement, wherein the active measurement is to periodically send a probe packet to a target node through a network tool (such as ping, traceroute, probe, etc.) to measure network performance parameters such as delay, jitter, packet loss rate, etc. of a link or a path. Passive measurements record and count traffic information on network links or nodes, such as flow sampling or Deep Packet Inspection (DPI) techniques, by deploying test equipment or probes in the network.
With the increase of customer service requirements, more and more measurement information is needed for network measurement, the measurement frequency is accelerated, and the network measurement cost is also continuously increased. Especially in the SDWAN scene, the quality of a network link is an important index for service scheduling, and how to provide real and accurate network quality perception by using the existing resources becomes very significant. The active detection mode periodically sends detection messages, which only reflect the state of a link to a certain extent, and because the test messages are independent of user service messages, the influence of network quality changes on user services cannot be accurately achieved.
Disclosure of Invention
In view of the above, the present disclosure provides a network measurement method for measuring quality of a network, including:
acquiring a data message entering a tunnel at present;
inserting a test field in the data message;
forwarding the data message containing the test field into a tunnel;
acquiring the data message containing the test field from the tunnel and recording parameter information; wherein the parameter information comprises the test field;
and acquiring the quality condition of the network according to the parameter information.
In one possible implementation, the test field includes:
at least one of a first timestamp, a current message number, a current service flow ID and an application ID;
wherein the first timestamp is: and sending the timestamp of the data message.
In a possible implementation manner, the acquiring the data packet containing the test field from the tunnel and recording the parameter information includes:
recording the second timestamp; wherein the second timestamp is: receiving a timestamp of the data message from the tunnel;
and counting the test field.
In a possible implementation manner, the obtaining the quality condition of the network according to the parameter information includes:
calculating the one-way time delay by using a preset first formula, wherein FS (n) - △ ts (n +1) -ts (n);
wherein fs (n) characterizes one-way latency, △ ts characterizes a difference between two timestamps, ts (n +1) characterizes the second timestamp, and ts (n) characterizes the first timestamp;
calculating the one-way forwarding delay by using a preset second formula of △ FS (n +1) -FS (n);
△ FS represents one-way forwarding time delay;
and performing intelligent service routing and QoS control according to the one-way time delay and the one-way forwarding time delay.
In one possible implementation, inserting a test field in the data packet includes:
and inserting the test field into the tunneling protocol as an option field or inserting the test field into an IP header of the data message as an option field.
In one possible implementation, the counting the test field includes:
acquiring the data message;
obtaining a test field from the data message;
acquiring an application ID or a service flow ID from the test field;
and classifying the data message into a corresponding application ID classification or classifying the message into a corresponding service flow ID classification.
According to another aspect of the present disclosure, a network measurement apparatus is provided, which includes a data packet obtaining module, a test field inserting module, a tunnel forwarding module, a parameter information recording module, and a network measurement module;
the data message acquisition module is configured to acquire a data message currently entering a tunnel;
the test field insertion module is configured to insert a test field in the data message;
the tunnel forwarding module is configured to forward the data message containing the test field into a tunnel;
the parameter information recording module is configured to acquire the data message containing the test field from the tunnel and record parameter information; wherein the parameter information comprises the test field;
the network measurement module is configured to acquire the quality condition of the network according to the parameter information.
In one possible implementation manner, the network measurement module includes a quality evaluation unit and a service deployment unit;
the quality evaluation unit is configured to calculate the one-way time delay by using a preset first formula, wherein FS (n) - △ ts (n +1) -ts (n);
wherein fs (n) characterizes one-way latency, △ ts characterizes a difference between two timestamps, ts (n +1) characterizes the second timestamp, and ts (n) characterizes the first timestamp;
calculating the one-way forwarding delay by using a preset second formula of △ FS (n +1) -FS (n);
△ FS represents one-way forwarding time delay;
and the service transferring unit is configured to perform intelligent service routing and quality of service (QOS) control according to the one-way time delay and the one-way forwarding time delay.
According to another aspect of the present disclosure, there is provided a network measurement device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the executable instructions to implement any of the methods described above.
According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any of the preceding.
When a data message enters a tunnel, a test field is inserted into the data message, then the data message is forwarded to enter the tunnel, when the data message comes out of the tunnel, the data message is received and various parameter information in the data message is recorded, wherein the parameter information comprises the test field and a timestamp, and the obtained quality condition can be used for performing intelligent service routing and quality of service (QOS) control by acquiring the quality condition of a network according to the parameter information. Because the test field is directly inserted into the data message of the user flow, the data in the data message of any user flow is not changed, the integrity and the safety of the user data can be ensured, meanwhile, the test message and the data message are the same message, the packet-by-packet transmission state evaluation based on the current tunnel can be realized, and the service quality of the user service can be truly reflected.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a flow chart of a network measurement method of an embodiment of the present disclosure;
FIG. 2 illustrates a schematic diagram of a network measurement method of an embodiment of the present disclosure;
fig. 3 shows a test field insertion diagram of a network measurement method of an embodiment of the present disclosure;
FIG. 4 shows a block diagram of a network measurement device of an embodiment of the disclosure;
fig. 5 shows a block diagram of a network measurement device of an embodiment of the disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 shows a flow chart of a network measurement method according to an embodiment of the present disclosure. As shown in fig. 1, the network measurement method includes:
step S100, acquiring a data message entering a tunnel at present, step S200, inserting a test field in the data message, step S300, forwarding the data message containing the test field into the tunnel, and step S400, acquiring the data message containing the test field from the tunnel and recording parameter information; wherein, the parameter information includes a test field, and step S500, the quality condition of the network is obtained according to the parameter information.
When a data message enters a tunnel, a test field is inserted into the data message, then the data message is forwarded to enter the tunnel, when the data message comes out of the tunnel, the data message is received and various parameter information in the data message is recorded, wherein the parameter information comprises the test field and a timestamp, and the obtained quality condition can be used for performing intelligent service routing and quality of service (QOS) control by acquiring the quality condition of a network according to the parameter information. Because the test field is directly inserted into the data message of the user flow, the data in the data message of any user flow is not changed, the integrity and the safety of the user data can be ensured, meanwhile, the test message and the data message are the same message, the packet-by-packet transmission state evaluation based on the current tunnel can be realized, and the service quality of the user service can be truly reflected.
In addition, referring to fig. 2, fig. 2 is a schematic diagram illustrating a network measurement method according to an embodiment of the present disclosure, which provides a method for detecting overlay/underlay network service quality assessment based on real user traffic by inserting a detection field into an outer tunnel endpoint for service application in an overlay network, and may perform intelligent routing scheduling using classification information. Overlay refers to a virtualization technology mode superimposed on a network architecture, and the Overlay realizes the load bearing applied to the network and can realize the network separation of different services/users without modifying the physical network in a large scale. A method for inserting a service quality detection field in an overlay layer extends an option variable in an IP header on the basis of Internet Protcol (RFC 791).
Specifically, referring to fig. 1, step S100 is executed first, and a data packet currently entering a tunnel is obtained first.
In one possible implementation, the data message may be acquired when the data message enters the tunnel. For example: in the router A, the message entering the router is intercepted, namely the data message is obtained.
It should be noted that the method for obtaining the data message can be implemented by using conventional technical means in the art, and will not be described herein again.
Further, referring to fig. 1, step S200 is performed to insert a test field in the data message.
In one possible implementation, referring to fig. 3, a test field may be inserted in the outer IP header (i.e., the test field is used as an option field), wherein the test field may include a first timestamp (ts1), a current message number (PN1), a current traffic ID (FlowID1), and an application ID (ApplicationID1) if any. For example: a timestamp T1, i.e. a time identifier, is added to the data packet, the current time is recorded, and an application ID (ApplicationID1) corresponding to the packet is added: and ID identification of the microblog data message. Because the test field is directly inserted into the data message of the user flow, the data in the data message of the user flow is not changed, and the integrity and the safety of the user data can be ensured.
It should be noted that the method for inserting the test field is not limited to inserting the test field as an option field into an IP header of the data packet, and the test field may also be inserted into the tunneling protocol as a header of the tunneling protocol or data, that is, into a header (Tunnel header) of the tunneling protocol or a data portion of the tunneling protocol.
Further, referring to fig. 1, step S300 is executed to forward the data packet containing the test field into the tunnel.
In a possible implementation manner, the data packet added with the test field is forwarded to enter the Tunnel, and referring to fig. 2, in the Tunnel 1(Tunnel1), that is, the device that acquires the packet, when the test field is added in the packet, the data packet is forwarded from the Tunnel 1(Tunnel1) to enter the Tunnel 2(Tunnel2), that is, the Internet (Internet). For example, the router a is the Tunnel 1(Tunnel1), and forwards the data packet from the router a into the Tunnel 2(Tunnel2), where the data packet includes UDP forwarding and TCP forwarding.
Further, referring to fig. 1, step S400 is executed to obtain a data packet containing a test field from the tunnel and record parameter information; wherein the parameter information comprises a test field.
In one possible implementation, when a data packet header forwarded from the tunnel is received, the current timestamp (ts2) is recorded, and the test packet field is counted. For example: referring to fig. 2, when receiving the data packet of Tunnel 2(Tunnel2), the routing device B, that is, Tunnel 3(Tunnel3), records the current second timestamp, that is, the current time identifier, and counts the test field. The step of counting the test fields comprises the steps of obtaining a data message, obtaining the test fields from the data message, obtaining an application ID or a service flow ID from the test fields, and classifying the obtained data message into a corresponding application ID classification or classifying the message into a corresponding service flow ID classification.
Further, referring to fig. 1, step S500 is executed to obtain a quality condition of the network according to the parameter information.
In a possible implementation, information in a test field is counted, unidirectional delay and unidirectional forwarding delay are calculated according to different application IDs or flow classification information, a data packet with the same corresponding application ID or a data packet with the same service flow ID is subjected to calculation using a preset first formula, FS (n) △ ts (n +1) -ts (n), and unidirectional delay is calculated, wherein FS (n) represents unidirectional delay, △ ts represents a difference between a first timestamp and a second timestamp, ts (n +1) represents a second timestamp, and ts (n) represents a timestamp of sending the data packet, i.e., the first timestamp, and then, a preset second formula, △ FS (n +1) -qofs (n), is used to calculate unidirectional forwarding delay of two data packets in the same corresponding application ID or in the same service flow ID, wherein △ FS represents unidirectional forwarding delay, service quality control routing is performed according to unidirectional forwarding delay and unidirectional forwarding delay, service quality control routing is controlled, for example, a change of the data packet is performed as a data packet in a first time delay, and if a second time delay is calculated, a second time delay is obtained, a microblog delay is calculated, and a microblog delay is obtained when a microblog delay is received, a microblog control data packet, a microblog delay is received, a microblog data packet, a microblog control algorithm is performed, and a microblog delay is calculated, and a microblog delay is performed, wherein a microblog delay is obtained, and a microblog delay is obtained, if a microblog control algorithm, a microblog delay is performed, a microblog control algorithm, a microblog is performed, a microblog control algorithm, and a microblog is performed, a microblog delay is performed.
It should be noted that the basis for service scheduling may include delay inequality, but is not limited to delay inequality, and other determination basis may be added, and the other determination basis may use a conventional technical means in the art, and is not described herein again.
In addition, in the process of forwarding the data packet, the time of the passed device or path must be kept synchronous, wherein the time synchronization mode may adopt an NTP mode.
It should be noted that, although the network measurement method is described above by taking the above steps as an example, those skilled in the art will understand that the disclosure should not be limited thereto. In fact, the user can flexibly set the network measurement method according to personal preference and/or actual application scene, as long as the required functions are achieved.
Therefore, when the data message enters the tunnel, the test field is inserted into the data message, then the data message is forwarded to the tunnel, when the data message comes out of the tunnel, the data message is received and various parameter information in the data message is recorded, wherein the parameter information comprises the test field and the timestamp, the quality condition of the network is obtained according to the parameter information, and the obtained quality condition can be used for performing intelligent service selection and quality of service (QOS) control. Because the test field is directly inserted into the data message of the user flow, the data in the data message of any user flow is not changed, the integrity and the safety of the user data can be ensured, meanwhile, the test message and the data message are the same message, the packet-by-packet transmission state evaluation based on the current tunnel can be realized, and the service quality of the user service can be truly reflected.
Further, according to another aspect of the present disclosure, a network measurement apparatus 100 is also provided. Since the working principle of the network measurement apparatus 100 according to the embodiment of the present disclosure is the same as or similar to that of the network measurement method according to the embodiment of the present disclosure, repeated descriptions are omitted. Referring to fig. 4, the network measurement apparatus 100 of the present disclosure includes a data packet obtaining module 110, a test field inserting module 120, a tunnel forwarding module 130, a parameter information recording module 140, and a network measurement module 150;
a data packet obtaining module 110, configured to obtain a data packet currently entering a tunnel;
a test field insertion module 120 configured to insert a test field in the data message;
a tunnel forwarding module 130 configured to forward the data packet containing the test field into a tunnel;
a parameter information recording module 140 configured to obtain a data packet containing a test field from the tunnel and record parameter information; wherein the parameter information comprises a test field;
and the network measurement module 150 is configured to acquire the quality condition of the network according to the parameter information.
Further, in a possible implementation manner, the network measurement module includes a quality evaluation unit and a service deployment unit;
a quality evaluation unit configured to calculate a one-way time delay using a preset first formula fs (n) ═ △ ts ═ ts (n +1) -ts (n);
wherein fs (n) characterizes one-way latency, △ ts characterizes the difference between two timestamps, ts (n +1) characterizes the second timestamp, and ts (n) characterizes the first timestamp;
calculating the one-way forwarding delay by using a preset second formula of △ FS (n +1) -FS (n);
△ FS represents one-way forwarding time delay;
and the service transferring unit is configured to perform intelligent service routing and QoS control according to the one-way delay and the one-way forwarding delay.
Still further, according to another aspect of the present disclosure, there is also provided a network measurement device 200. Referring to fig. 5, the network measurement device 200 of the embodiment of the present disclosure includes a processor 210 and a memory 220 for storing instructions executable by the processor 210. Wherein the processor 210 is configured to implement any of the foregoing network measurement methods when executing the executable instructions.
Here, it should be noted that the number of the processors 210 may be one or more. Meanwhile, in the network measurement device 200 of the embodiment of the present disclosure, an input device 230 and an output device 240 may also be included. The processor 210, the memory 220, the input device 230, and the output device 240 may be connected via a bus, or may be connected via other methods, which is not limited in detail herein.
The memory 220, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and various modules, such as: the network measurement method of the embodiment of the present disclosure corresponds to a program or a module. The processor 210 executes various functional applications and data processing of the network measurement device 200 by executing software programs or modules stored in the memory 220.
The input device 230 may be used to receive an input number or signal. Wherein the signal may be a key signal generated in connection with user settings and function control of the device/terminal/server. The output device 240 may include a display device such as a display screen.
According to another aspect of the present disclosure, there is also provided a non-transitory computer readable storage medium having stored thereon computer program instructions, which when executed by the processor 210, implement the network measurement method of any of the foregoing.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A network measurement method for measuring quality of a network, comprising:
acquiring a data message entering a tunnel at present;
inserting a test field in the data message;
forwarding the data message containing the test field into a tunnel;
acquiring the data message containing the test field from the tunnel and recording parameter information; wherein the parameter information comprises the test field;
and acquiring the quality condition of the network according to the parameter information.
2. The method of claim 1, wherein the test field comprises:
at least one of a first timestamp, a current message number, a current service flow ID and an application ID;
wherein the first timestamp is: and sending the timestamp of the data message.
3. The method of claim 1, wherein the obtaining the data packet containing the test field from the tunnel and recording parameter information comprises:
recording the second timestamp; wherein the second timestamp is: receiving a timestamp of the data message from the tunnel;
and counting the test field.
4. The method of claim 1, wherein obtaining the quality condition of the network according to the parameter information comprises:
calculating the one-way time delay by using a preset first formula, wherein FS (n) - △ ts (n +1) -ts (n);
wherein fs (n) characterizes one-way latency, △ ts characterizes a difference between two timestamps, ts (n +1) characterizes the second timestamp, and ts (n) characterizes the first timestamp;
calculating the one-way forwarding delay by using a preset second formula of △ FS (n +1) -FS (n);
△ FS represents one-way forwarding time delay;
and performing intelligent service routing and QoS control according to the one-way time delay and the one-way forwarding time delay.
5. The method of claim 1, wherein inserting a test field in the data packet comprises:
and inserting the test field into the tunneling protocol as an option field or inserting the test field into an IP header of the data message as an option field.
6. The method of claim 3, wherein counting the test fields comprises:
acquiring the data message;
obtaining a test field from the data message;
acquiring an application ID or a service flow ID from the test field;
and classifying the data message into a corresponding application ID classification or classifying the message into a corresponding service flow ID classification.
7. A network measuring device is characterized by comprising a data message acquisition module, a test field insertion module, a tunnel forwarding module, a parameter information recording module and a network measuring module;
the data message acquisition module is configured to acquire a data message currently entering a tunnel;
the test field insertion module is configured to insert a test field in the data message;
the tunnel forwarding module is configured to forward the data message containing the test field into a tunnel;
the parameter information recording module is configured to acquire the data message containing the test field from the tunnel and record parameter information; wherein the parameter information comprises the test field;
the network measurement module is configured to acquire the quality condition of the network according to the parameter information.
8. The apparatus of claim 7, wherein the network measurement module comprises a quality assessment unit and a traffic coordination unit;
the quality evaluation unit is configured to calculate the one-way time delay by using a preset first formula, wherein FS (n) - △ ts (n +1) -ts (n);
wherein fs (n) characterizes one-way latency, △ ts characterizes a difference between two timestamps, ts (n +1) characterizes the second timestamp, and ts (n) characterizes the first timestamp;
calculating the one-way forwarding delay by using a preset second formula of △ FS (n +1) -FS (n);
△ FS represents one-way forwarding time delay;
and the service transferring unit is configured to perform intelligent service routing and quality of service (QOS) control according to the one-way time delay and the one-way forwarding time delay.
9. A network measurement device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to carry out the method of any one of claims 1 to 6 when executing the executable instructions.
10. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any of claims 1 to 6.
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