CN117176839B - Remote measurement message transmission method, device, communication equipment and storage medium - Google Patents
Remote measurement message transmission method, device, communication equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides a telemetry message transmission method, a device, communication equipment and a storage medium, comprising the following steps: acquiring a target remote measurement message; acquiring a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data; comparing the first telemetry column data with the second telemetry column data to obtain a difference value between the target telemetry message and the historical telemetry message; and determining whether the target remote measurement message is transmitted or not according to the relation between the difference value and the preset threshold value. According to the embodiment of the application, through differential telemetry information transmission, the beneficial effects of reducing the transmission data volume, improving the transmission efficiency, saving bandwidth resources, improving the data consistency and the like are achieved, the performance and the reliability of a telemetry system are improved, and meanwhile, the cost and the resource consumption of data transmission are reduced.
Description
Technical Field
The present disclosure relates to the field of data processing technologies, and in particular, to a telemetry message transmission method, a device, a communication device, and a storage medium.
Background
In-band network telemetry (In-Band Network Telemetry, INT for short) is a network monitoring technology that can provide real-time, fine-grained monitoring and analysis of data streams In a network. INT allows network devices (e.g., switches, routers) to embed critical information into the data packets during their forwarding, thereby enabling in-depth knowledge and analysis of the network.
INT technology faces some challenges and limitations, firstly, INT needs support and configuration of network devices, not all network devices support INT functions at present, and secondly, INT adds extra metadata fields in data packets, increases the size of the data packets, and possibly has a certain influence on the bandwidth utilization of the network.
In the related art, in order to solve network congestion, the amount of data frequently transmitted is reduced by merging a plurality of data points or data fragments into one data unit, however, such merging operation may result in loss of accuracy of data, because some detailed information may be lost during merging, and data aggregation involves processing and calculating data, which requires additional computing resources and time, particularly in a real-time transmission scenario, the computational complexity of data aggregation and compression may result in increased delay of transmission, thereby affecting real-time performance.
Disclosure of Invention
An embodiment of the present application is directed to a telemetry message transmission method, device, communication equipment and storage medium, so as to solve the technical problem in the prior art that data aggregation results in reduced data precision. The specific technical scheme is as follows:
in a first aspect of the present application, there is first provided a telemetry message transmission method applied to a first switch, where the method includes:
obtaining a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data;
comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
and determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value.
Optionally, the determining whether the target telemetry message is transmitted according to the relationship between the difference value and a preset threshold includes:
And deleting telemetry column data of the target telemetry message and transmitting the telemetry message to a second switch under the condition that the difference value is detected to be smaller than a preset threshold value. .
Optionally, the determining whether the target telemetry message is transmitted according to the relationship between the difference value and a preset threshold includes:
and under the condition that the difference value is detected to be larger than a preset threshold value, updating telemetry column data corresponding to the key value into the storage module, and transmitting the telemetry message to a second switch.
Optionally, the transmitting the telemetry message to the second switch includes:
judging whether the first switch is a reporting node (a telemetry tail node);
and determining whether to transmit to the second switch according to the judging result.
Optionally, the determining whether to transmit to the second switch according to the determination result includes:
if the first switch is a non-reporting node;
adding telemetry field data of the first switch to the target telemetry message to obtain a target additional telemetry message;
and transmitting the target additional telemetry message to a second switch.
Optionally, the determining whether to transmit to the second switch according to the determination result includes:
If the first switch is a reporting node;
uploading additional telemetry data in a target additional telemetry message to a controller and stripping the additional telemetry data from the target additional telemetry message;
and sending the telemetry message to a second server.
Optionally, uploading the additional telemetry information in the target additional telemetry message to the controller includes:
and uploading the additional telemetry data in the target additional telemetry message to a controller so that the controller analyzes and processes the target telemetry message to obtain an analysis result.
Optionally, the uploading the additional telemetry information in the target additional telemetry message to the controller, so that the controller performs analysis processing on the target telemetry message, and the obtaining the analysis result includes:
and sending a target telemetry message to a controller, and if the telemetry field data in the target telemetry message is missing, filling the target telemetry message by the controller according to the telemetry field data corresponding to the historical telemetry message.
Optionally, obtaining the key value of the target telemetry message includes:
splicing according to the 5-tuple in the target remote measurement message to obtain a spliced 5-tuple;
And acquiring the hash value of the spliced 5-tuple as a key value of the target remote measurement message.
Optionally, the key value is used for constructing an index and comparing, and the index is stored in a preset storage module.
Optionally, the 5-tuple includes: source IP address, destination IP address, source port number, destination port number, and protocol type.
Optionally, the splicing according to the 5-tuple in the target telemetry message includes:
splicing the 5-tuple in the target remote measurement message according to a preset sequence, wherein the preset sequence comprises a source IP address, a destination IP address, a source port number and a destination port number to a protocol type.
Optionally, the obtaining the pre-stored history remote measurement message according to the key value includes:
and acquiring a prestored historical remote message from a preset storage module according to the key value, wherein the key value of the historical remote message is the same as the key value of the target remote message.
Optionally, the telemetry field data includes: switch_ id, latency, queue _offset and queue_depth.
Optionally, the comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the historical telemetry message to obtain a difference value between the target telemetry message and the historical telemetry message includes:
Acquiring first telemetry field data of the target telemetry message and second telemetry field data of the history telemetry message;
and comparing the first telemetry field data with the second telemetry field data based on the same telemetry field to obtain a difference value between the first telemetry field data and the second telemetry field data.
Optionally, the obtaining the target telemetry message includes:
receiving a common message sent by a first server, wherein the common message is used for being sent to a second server;
and identifying a target remote measurement message in the common message.
Optionally, the identifying the target telemetry message in the common message includes:
and analyzing the header in the common message or presetting an analysis protocol through the DSCP value to identify a target remote measurement message in the common message.
In yet another aspect of the present application, there is also provided a telemetry message transmission system, including: a first switch and a controller;
the first switch is used for acquiring a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data; comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message; determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value;
The controller is configured to receive additional telemetry information in a target additional telemetry message sent by the first switch when the first switch is a reporting node.
In yet another aspect of the present application, there is further provided a telemetry message transmission apparatus, the apparatus including:
the first acquisition module is used for acquiring a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
the second acquisition module is used for acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data;
the comparison module is used for comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
and the transmission module is used for determining whether the target remote measurement message is transmitted or not according to the relation between the difference value and a preset threshold value.
In yet another aspect of the present application, there is provided a communication device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;
A memory for storing a computer program;
and the processor is used for realizing any one of the telemetry message transmission methods when executing the program stored in the memory.
In yet another aspect of the present application, there is also provided a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform any of the telemetry message transmission methods described above.
In yet another aspect of the implementations of the present application, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform any of the telemetry message transmission methods described above.
According to the telemetry message transmission method, the target telemetry message is obtained, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data; comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message; and determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value. According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved. Therefore, the embodiment of the application realizes the beneficial effects of reducing the transmission data volume, improving the transmission efficiency, saving bandwidth resources, improving the data consistency and the like through the differential telemetry information transmission, is beneficial to improving the performance and the reliability of a telemetry system, and simultaneously reduces the cost and the resource consumption of data transmission.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a flowchart illustrating steps of a telemetry message transmission method according to an embodiment of the present application;
fig. 2 shows a second step flowchart of a telemetry message transmission method provided in an embodiment of the present application;
fig. 3 shows a step flowchart III of a telemetry message transmission method provided in an embodiment of the present application;
fig. 4 is a flowchart illustrating steps of a telemetry message transmission method according to an embodiment of the present application;
fig. 5 shows a device block diagram of a telemetry message transmission device according to an embodiment of the present application;
fig. 6 shows a block diagram of a communication device according to an embodiment of the present application;
fig. 7 shows a schematic topology diagram of a telemetry packet transmission network according to an embodiment of the present application;
fig. 8 shows a schematic diagram of a telemetry message transmission architecture according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of each embodiment of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments may be mutually combined and referred to without contradiction.
It should be noted that, in the embodiment of the present application, referring to fig. 8, fig. 8 shows a schematic diagram of a telemetry message transmission architecture provided in the embodiment of the present application, it can be seen that a server, a switch, and a controller form a telemetry message transmission system in the present application, where PKT in the figure represents a packet, a service message, that is, a general term of all messages sent by a first server to a second server in the present application, that is, a normal message, and the switch may identify a telemetry message in the normal message in some manners, where the telemetry message refers to an in-band network telemetry message, MD represents metadata, and represents a general term of information collected on the switch.
It should be noted that in-band network telemetry performed in the present application is a framework for collecting and reporting network status by a network data plane without intervention of a network control plane, and in the in-band network telemetry architecture, a switching device forwards a data packet carrying telemetry instructions (Telemetry instructions). These telemetry instructions tell the network telemetry enabled network device what network status information should be collected and written as telemetry packets pass through the device.
First, the corresponding server comprises a first server and a second server, wherein the first server is used for sending the general report message, and the second server is used for receiving the general report message.
Second, for the switch, which is the core component of the system, is located between the first server and the second server, plays a role of relay for data transmission, is responsible for collection and processing of telemetry data, and transmits its telemetry data to the controller at a designated switch.
It should be noted that, for the switch, referring to fig. 7, a topology diagram of a telemetry message transmission network is shown in fig. 7 by way of example, in this embodiment of the present application, the number of switches is not limited to three in the whole telemetry message transmission process, the number of switches is not particularly limited, and when the first server and the second server perform message transmission, the last switch transmitted to the server may be referred to as a telemetry tail node or a reporting node.
Finally, for the controller, the controller is responsible for receiving and processing telemetry data from the switch. It decodes, analyzes and decides the data, and executes corresponding control operation according to specific business logic.
In addition, the controller can comprise a corresponding visual interface, can monitor the state and performance index of the network equipment in real time, discover and process network faults in time, and perform corresponding configuration and adjustment.
Referring to fig. 1, a first step flowchart of a telemetry message transmission method provided in an embodiment of the present application is shown, where the method may include:
it should be noted that, in the embodiment of the present application, the first switch and the second switch may be the same switch or different switches, depending on whether the current switch (the first switch) is a telemetry tail node or a reporting node.
For ease of understanding the embodiments of the present application by those skilled in the art, the description will be presented with a first switch and a second switch.
Step 101, obtaining a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
the first switch can obtain the common message sent by the first server or other users (user terminals), and the first switch can identify the target telemetry message belonging to in-band network telemetry in the common message.
The target telemetry message includes at least one first telemetry field data, where the telemetry field is a generic term for telemetry information collected on the switch according to actual demands of a user, and in this embodiment, the telemetry field may include switch_ id, latency, queue _offset and queue_depth.
102, acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module, and the history remote measurement message comprises second remote measurement column data;
it should be noted that, the history telemetry message is a message that needs to have the same telemetry field as the target telemetry message, so that a pre-stored history telemetry message needs to be obtained according to some methods, where the history telemetry message is stored in a pre-set storage module, and may be stored in the module when the telemetry field is updated later.
Further, step 102 may include: acquiring a key value of the target remote measurement message; and acquiring a prestored history remote measurement message according to the key value.
The first switch may obtain the key value through the 5-tuple of the target telemetry message.
It should be noted that, in the embodiment of the present application, the 5-tuple is a communication term, and the english name is five-tuple, or 5-tuple may be understood as five element combinations, and generally refers to a session represented by 5 fields, such as source IP (source IP), source port (source port), destination IP (destination IP), destination port (destination port), and 4-layer communication protocol (the layer 4 protocol), where in the embodiment of the present application, the 5-tuple includes: source IP address, destination IP address, source port number, destination port number, and protocol type.
Specifically, the key value is the 5-tuple concatenation of the target remote measurement message, and then the hash value is calculated, so that the hash value characteristics are the same as long as the input strings are the same, and therefore, the key values are the same and represent the same flow.
For example, there are exemplary telemetry message 1, telemetry message 2, where telemetry message 1 and telemetry message 2 are both one type of target telemetry message.
The use of 5 tuples for telemetry message 1 may be expressed as: 192.168.0.1 source IP address, 10.0.0.1 destination IP address, 5001 source port number, 8001 destination port number, and TCP protocol type.
The use of 5 tuples for telemetry message 2 may be expressed as: 192.168.0.2 source IP address, 10.0.0.1 destination IP address, 5002 source port number, 8001 destination port number, and UDP protocol type.
Then performing a hash calculation according to a hash algorithm, such as the SHA-256 algorithm, may result in:
remote measurement of key value of message 1: SHA-256 (192.168.0.1-10.0.1-5001-8001-TCP) =dbecccaba 64a926661e05dc02968315d8ce0735fe4d 62731 d4473ac9c6c720d33;
remote measurement of key value of message 2: SHA-256 (192.168.0.2-10.0.1-5002-8001-UDP) =3c6d8af 418a8bb33d74e8bb4479d93b6821f0f3415b384a2c526b57959ca8c8.
After obtaining the key value of the target telemetry message to be transmitted currently, the switch can take out the telemetry field data of the same 5-tuple recorded before from the storage according to the key value, and then the message corresponding to the telemetry field data is the history telemetry message.
It should be noted that, in addition to the above method for determining the key value of the remote measurement message by means of 5-tuple so as to select the history remote measurement message having the same remote measurement field as the target remote measurement message, the method for obtaining the pre-stored history remote measurement message in the present application may further determine whether the current history remote measurement message is a similar or same message as the target remote measurement message by performing a special mark on the remote measurement field.
In addition, the application can judge whether the same telemetry field exists in the historical telemetry message and the target telemetry message by adding one telemetry field or setting the existing telemetry field.
Step 103, comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
and then, the switch compares the currently received telemetry field data with the previously recorded data according to the telemetry field data of the same 5-tuple recorded before the key value is fetched from the storage, and judges whether the difference between the currently received telemetry field data and the previously recorded data exceeds a set threshold value or not.
Specifically, telemetry column data is recorded through json format;
{
"dbecccaba64a926661e05dc02968315d8ce0735fe4d6231d4473ac9c6c720d33"：
{
"comment": "telemetry message 1",
"switch_id" : "switch_1",
"latency": 900,
"queue_offset": 1,
"queue_depth": 100
},
"3c96d8af418a8bb33d74e8bb4479d93b6821f0f3415b384a2c526b57959ca8c8"；
{
"comment": "telemetry message 2",
"switch_id" : "switch_1",
"latency": 850,
"queue_offset": 2,
"queue_depth": 100
}
}
it should be noted that, the foregoing is an exemplary telemetry field data record corresponding to telemetry packet 1 and telemetry packet 2, where "dbecccaba64a926661e05dc02968315d8ce0735fe4d 6273 d4473ac9c6c720d33" represents a key value of telemetry packet 1, "3c96d8af418a8bb33d74e 4479d93b6821f0f3415b384a2c526b57959ca8c8" represents a key value of telemetry field 2, it can be seen that the key value can construct an index, in addition, _comment is equivalent to an annotation, switch_id is a current switch id, latency is a timestamp-stamp of a message, queue_offset is a current use condition of an egress queue, and queue_depth is a size of the egress queue.
Then, the history telemetry message is illustratively represented as telemetry message 3, and its corresponding 5-tuple may be represented as telemetry message 3: 192.168.0.1 source IP address, 10.0.0.1 destination IP address, 5001 source port number, 8001 destination port number, and TCP protocol type.
And the corresponding telemetry column data records the telemetry column data through json format:
{
"switch_id" : "switch_1",
"latency": 950,
"queue_offset": 1,
"queue_depth": 10
}
therefore, for the target telemetry message (i.e. telemetry message 1, telemetry message 2) and the history telemetry message (i.e. telemetry message 3), the 5-tuple concatenation of telemetry message 3 is used first, the hash value is calculated as a key value, and since the 5-tuple of telemetry message 3 is identical to the 5-tuple of telemetry message 1, the key value identical to telemetry message 1 is finally calculated, the last telemetry record is obtained, and the difference comparison is performed with the key value.
And 104, determining whether the target telemetry message is transmitted or not according to the relation between the difference value and a preset threshold value.
It should be noted that, in the embodiment of the present application, whether the target telemetry message is transmitted, what the transmission target is, and whether the transmission target needs to be reported to the controller are determined according to the difference value.
Reference is made in particular to the following description.
In addition, in the embodiment of the present application, the preset threshold may be set according to an actual application scenario, specifically, different preset thresholds may be set for each telemetry field, where when the telemetry field is switch_id, the switch_id indicates that the current switch ID is a unique identifier for the switch, so that the telemetry field is reserved no matter how many difference values correspond to the telemetry field.
According to the telemetry message transmission method, the target telemetry message is obtained, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a key value of the target remote measurement message; acquiring a prestored history remote measurement message according to the key value; comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message; and determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value. According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved. Therefore, the embodiment of the application realizes the beneficial effects of reducing the transmission data volume, improving the transmission efficiency, saving bandwidth resources, improving the data consistency and the like through the differential telemetry information transmission, is beneficial to improving the performance and the reliability of a telemetry system, and simultaneously reduces the cost and the resource consumption of data transmission.
Referring to fig. 2, a second step flowchart of a telemetry message transmission method provided in an embodiment of the present application is shown, where the method may include:
step 201, obtaining a target telemetry message, wherein the target telemetry message comprises at least one first telemetry field data;
step 202, a pre-stored history remote measurement message is obtained, wherein the history remote measurement message is stored in a pre-set storage module, and the history remote measurement message comprises second remote measurement column data;
step 203, comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
it should be noted that, in the embodiment of the present application, in the steps 201 to 204, the foregoing discussion refers to the preamble, and will not be discussed here.
And step 204, deleting telemetry field data of the target telemetry message and transmitting the telemetry message to a second switch under the condition that the difference value is detected to be smaller than a preset threshold value.
Step 205, when the difference value is detected to be greater than a preset threshold, updating telemetry column data corresponding to the key value to the storage module, and transmitting the telemetry message to a second switch.
It should be noted that, in the embodiment of the present application, after determining the difference value between the target telemetry message and the history telemetry message for the telemetry field, the transmission of the telemetry message is determined according to the size of the difference value.
Specifically, if the difference exceeds the threshold, the switch updates the telemetry field data corresponding to the key to the currently received data, for example, taking the preamble of telemetry message 1 and telemetry message 2 as an example for telemetry message 3, it can be seen that the difference between queue_depth exceeds the preset threshold, and at this time, the telemetry field data recorded in the 5-tuple in the key, that is, the update record, is updated.
If the difference does not exceed the threshold, the first switch will delete the current telemetry field data and transmit it to the next node. Taking telemetry message 3 as an example, if the difference between latency and queue_offset does not reach the threshold, deleting the current telemetry field data and transmitting the current telemetry field data to the next node, for example:
remote measurement message 3
Source IP address 192.168.0.1
Destination IP Address 10.0.0.1
Source Port number 5001
Destination port number 8001
Protocol type TCP
{
"switch_id" : "switch_1",
"queue_depth": 10
}
Further, after determining the relationship between the difference value and the threshold value, it needs to determine whether the switch where the current message is located, i.e. whether the first switch is the last hop switch, i.e. whether it is a telemetry tail node or a reporting node.
Specifically, if the current switch is the last hop, it will send the telemetry data in the message to the controller, and send the telemetry data to the server 2 after stripping the telemetry data from the message.
If the current switch is not the last hop (i.e., not the reporting node), it will add additional switch telemetry to the telemetry message and transmit the entire telemetry message to the next node.
Further, for the difference value being greater than a preset threshold and less than a preset threshold, the transmitting the telemetry message to the second switch includes: judging whether the first switch is a reporting node (a telemetry tail node); and determining whether to transmit to the second switch according to the judging result.
In the first case, that is, the first switch is a non-reporting node, determining whether to transmit to the second switch according to the determination result includes:
adding telemetry field data of the first switch to the target telemetry message to obtain a target additional telemetry message; and transmitting the target additional telemetry message to a second switch.
In the second case, that is, the first switch is the reporting node, determining whether to transmit to the second switch according to the determination result includes:
Uploading additional telemetry data in a target additional telemetry message to a controller and stripping the additional telemetry data from the target additional telemetry message; and sending the telemetry message to a second server.
Further, for the controller, after the controller receives the additional telemetry information reported by the target additional telemetry message, the target telemetry message is further processed.
The uploading of additional telemetry data in the target additional telemetry message to the controller includes:
and uploading the additional telemetry data in the target additional telemetry message to a controller so that the controller analyzes and processes the target telemetry message to obtain an analysis result.
The uploading the additional telemetry information in the target additional telemetry message to the controller so that the controller analyzes and processes the target telemetry message to obtain an analysis result, wherein the analysis result comprises:
and sending a target telemetry message to a controller, and if the telemetry field data in the target telemetry message is missing, filling the target telemetry message by the controller according to the telemetry field data corresponding to the historical telemetry message.
It should be noted that, the controller receives the telemetry message from the switch 3, analyzes the received data, and if a field is missing in the current message, the controller fills the corresponding field with the value of the same 5-tuple in the previous telemetry message, so as to ensure the integrity and consistency of the telemetry message.
That is, in the embodiment of the present application, when the telemetry message is transmitted to the controller, the controller checks the difference between the received message and the previous record, and for the missing field, automatically fills the content using the same 5-tuple in the previous telemetry message.
According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved.
In addition, the embodiment of the application realizes the beneficial effects of reducing the transmission data volume, improving the transmission efficiency, saving bandwidth resources, and improving the data consistency and the like by the differential telemetry information transmission and the automatic filling of the missing telemetry field, thereby being beneficial to improving the performance and the reliability of a telemetry system and simultaneously reducing the cost and the resource consumption of data transmission.
Referring to fig. 3, a step flowchart three of a telemetry message transmission method provided in an embodiment of the present application is shown, where the method may include:
step 301, obtaining a target telemetry message, wherein the target telemetry message includes at least one first telemetry field data.
It should be noted that, the above step 301 is discussed with reference to the foregoing, and is not repeated herein.
Step 302, splicing according to the 5-tuple in the target telemetry message to obtain a spliced 5-tuple;
step 303, obtaining the hash value of the spliced 5-tuple as a key value of the target telemetry message;
the key value is used for constructing an index and comparing, and the index is stored in a preset storage module.
The 5-tuple includes: source IP address, destination IP address, source port number, destination port number, and protocol type.
Specifically, the 5-tuple splicing is to splice the 5-tuple in the target remote measurement message according to a preset sequence, where the preset sequence includes from a source IP address, a destination IP address, a source port number, a destination port number to a protocol type.
It should be noted that, the first switch may obtain the key value through the 5-tuple of the target telemetry message.
In the embodiment of the present application, the 5-tuple is a communication term, and the english name is five-tuple, or 5-tuple may be understood as a combination of five elements, and generally refers to a session represented by 5 fields of source IP (source IP), source port (source port), destination IP (destination IP), destination port (destination port), 4-layer 4 protocol (the layer 4 protocol), and the like, in the embodiment of the present application, the 5-tuple includes: source IP address, destination IP address, source port number, destination port number, and protocol type.
Specifically, the key value is the 5-tuple concatenation of the target remote measurement message, and then the hash value is calculated, so that the hash value characteristics are the same as long as the input strings are the same, and therefore, the key values are the same and represent the same flow.
For example, there are exemplary telemetry message 1, telemetry message 2, where telemetry message 1 and telemetry message 2 are both one type of target telemetry message.
The use of 5 tuples for telemetry message 1 may be expressed as: 192.168.0.1 source IP address, 10.0.0.1 destination IP address, 5001 source port number, 8001 destination port number, and TCP protocol type.
The use of 5 tuples for telemetry message 2 may be expressed as: 192.168.0.2 source IP address, 10.0.0.1 destination IP address, 5002 source port number, 8001 destination port number, and UDP protocol type.
Then performing a hash calculation according to a hash algorithm, such as the SHA-256 algorithm, may result in:
remote measurement of key value of message 1: SHA-256 (192.168.0.1-10.0.1-5001-8001-TCP) =dbecccaba 64a926661e05dc02968315d8ce0735fe4d 62731 d4473ac9c6c720d33;
remote measurement of key value of message 2: SHA-256 (192.168.0.2-10.0.1-5002-8001-UDP) =3c6d8af 418a8bb33d74e8bb4479d93b6821f0f3415b384a2c526b57959ca8c8.
Step 304, obtaining a pre-stored history remote measurement message from a preset storage module according to the key value, wherein the key value of the history remote measurement message is the same as the key value of the target remote measurement message;
step 305, comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
further, step 305 includes: acquiring first telemetry field data of the target telemetry message and second telemetry field data of the history telemetry message; and comparing the first telemetry field data with the second telemetry field data based on the same telemetry field to obtain a difference value between the first telemetry field data and the second telemetry field data.
And step 306, determining whether the target telemetry message is transmitted or not according to the relation between the difference value and a preset threshold value.
It should be noted that, the steps 304-306 are discussed with reference to the foregoing, and are not repeated herein.
According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved.
In addition, the embodiment of the application compares the difference judgment and filtering of the telemetry message, namely when a new telemetry message enters the switch, with the record of the same 5-tuple. If the value difference of the field does not exceed the preset threshold value, the field is removed from the message, only the changed field data is transmitted, and only the telemetry data which is changed by exceeding the threshold value can be ensured to be transmitted, so that the transmission data quantity is greatly reduced.
Referring to fig. 4, a fourth step flowchart of a telemetry message transmission method provided in an embodiment of the present application is shown, where the method may include:
step 401, receiving a common message sent by a first server, wherein the common message is used for sending to a second server;
step 402, identifying a target remote measurement message in the common message;
further, step 402 includes:
and analyzing the header in the common message or presetting an analysis protocol through the DSCP value to identify a target remote measurement message in the common message.
It should be noted that, the first switch may obtain a common message sent by the first server or other users (users), and the first switch may identify a target telemetry message belonging to in-band network telemetry in the common message.
Specifically, the target remote measurement message in the common message may be identified by parsing the header in the common message by using the DSCP value or a preset parsing protocol, which is not specifically limited in this application.
Step 403, obtaining a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module, and the history remote measurement message comprises second remote measurement column data;
step 404, comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
step 405, determining whether the target telemetry message is transmitted according to the relationship between the difference value and a preset threshold.
It should be noted that, the steps 403-405 are discussed with reference to the foregoing, and are not repeated here.
According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved.
In addition, in the embodiment of the application, by identifying the remote measurement message in the common message, the switch can record all information of the remote measurement message, so that the subsequent filtering of the field data which is not required to be transmitted according to the difference judgment strategy can be realized, and the use of bandwidth is reduced.
In addition, in another aspect of the application, there is also provided a telemetry message transmission system, including: a first switch and a controller;
the first switch is used for acquiring a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data; comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message; determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value;
the controller is configured to receive additional telemetry information in a target additional telemetry message sent by the first switch when the first switch is a reporting node.
It should be noted that, specifically, referring to fig. 7, fig. 7 may include a first switch and a controller, and since the first switch is a reporting node and may directly report to the controller, in the first switch, the second switch, and the third switch in the drawing, the first switch is not used as a reporting node in another scenario, but the third switch is used as a schematic diagram of the reporting node.
Referring to fig. 5, fig. 5 shows a telemetry message transmission apparatus provided in an embodiment of the present application, where the apparatus may include:
a first obtaining module 501, configured to obtain a target telemetry message, where the target telemetry message includes at least one first telemetry field data;
a second obtaining module 502, configured to obtain a pre-stored history remote measurement message, where the history remote measurement message is stored in a pre-set storage module, and the history remote measurement message includes second telemetry field data;
a comparison module 503, configured to compare the first telemetry field data of the target telemetry message with the second telemetry field data of the historical telemetry message, so as to obtain a difference value between the target telemetry message and the historical telemetry message;
And a transmission module 504, configured to determine whether the target telemetry message is transmitted according to a relationship between the difference value and a preset threshold.
According to the telemetry message transmission method, the target telemetry message is obtained, wherein the target telemetry message comprises at least one first telemetry column data; acquiring a key value of the target remote measurement message; acquiring a prestored history remote measurement message according to the key value; comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message; and determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value. According to the embodiment of the application, the difference value of the remote measurement messages is obtained through comparison, so that only the remote measurement data which is changed beyond the threshold value can be transmitted, and complete data is not required to be transmitted. This greatly reduces the amount of data transmitted and saves network bandwidth resources. In addition, compared with the method using data aggregation in the related art, the method and the device for data aggregation ensure the consistency of telemetry data by comparing and filling missing columns, and report telemetry messages to a controller, so that the controller can acquire complete telemetry data, the situation of inconsistent or missing data is reduced, and the accuracy and reliability of the data are improved. Therefore, the embodiment of the application realizes the beneficial effects of reducing the transmission data volume, improving the transmission efficiency, saving bandwidth resources, improving the data consistency and the like through the differential telemetry information transmission, is beneficial to improving the performance and the reliability of a telemetry system, and simultaneously reduces the cost and the resource consumption of data transmission.
The embodiment of the present application further provides a communication device, as shown in fig. 6, including a processor 601, a communication interface 602, a memory 603, and a communication bus 604, where the processor 601, the communication interface 602, and the memory 603 perform communication with each other through the communication bus 604,
a memory 603 for storing a computer program;
the processor 601, when executing the program stored in the memory 603, may implement the following steps:
obtaining a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
acquiring a key value of the target remote measurement message;
acquiring a prestored history remote measurement message according to the key value;
comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
and determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value.
The communication bus mentioned by the above terminal may be a peripheral component interconnect standard (PerIPheral Component Interconnect, abbreviated as PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the terminal and other devices.
The memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
In yet another embodiment provided herein, there is also provided a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the telemetry message transmission of any of the above embodiments.
In yet another embodiment provided herein, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform the telemetry message transmission of any of the above embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or third database to another website, computer, server, or third database by a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, third databases, etc. that can be integrated with the available medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. that are within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (19)
1. A method for telemetry message transmission, applied to a first switch, the method comprising:
obtaining a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data;
comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
determining whether the target remote message is transmitted or not according to the relation between the difference value and a preset threshold value;
the telemetry field data includes: switch_ id, latency, queue _offset and queue_depth;
the comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message comprises the following steps:
Acquiring first telemetry field data of the target telemetry message and second telemetry field data of the history telemetry message;
and comparing the first telemetry field data with the second telemetry field data based on the same telemetry field to obtain a difference value between the first telemetry field data and the second telemetry field data.
2. The telemetry message transmission method of claim 1, wherein the obtaining a pre-stored historical telemetry message comprises:
acquiring a key value of the target remote measurement message;
and acquiring a prestored history remote measurement message according to the key value.
3. The telemetry message transmission method of claim 1 wherein the determining whether the target telemetry message is transmitted according to the relationship between the difference value and a preset threshold comprises:
and deleting telemetry column data of the target telemetry message and transmitting the telemetry message to a second switch under the condition that the difference value is detected to be smaller than a preset threshold value.
4. The telemetry message transmission method of claim 1 wherein the determining whether the target telemetry message is transmitted according to the relationship between the difference value and a preset threshold comprises:
And under the condition that the difference value is detected to be larger than a preset threshold value, updating telemetry column data corresponding to the key value to the storage module, and transmitting the telemetry message to a second switch.
5. The telemetry message transmission method of claim 3 or 4 wherein transmitting the telemetry message to a second switch comprises:
judging whether the first switch is a reporting node or not;
and determining whether to transmit to the second switch according to the judging result.
6. The telemetry message transmission method of claim 5, wherein determining whether to transmit to the second switch based on the determination result comprises:
if the first switch is a non-reporting node;
adding telemetry field data of the first switch to the target telemetry message to obtain a target additional telemetry message;
and transmitting the target additional telemetry message to a second switch.
7. The telemetry message transmission method of claim 5, wherein determining whether to transmit to the second switch based on the determination result comprises:
if the first switch is a reporting node;
uploading additional telemetry data in a target additional telemetry message to a controller and stripping the additional telemetry data from the target additional telemetry message;
And sending the telemetry message to a second server.
8. The telemetry message transmission method of claim 7, wherein uploading additional telemetry data in the target additional telemetry message to the controller comprises:
and uploading the additional telemetry data in the target additional telemetry message to a controller so that the controller analyzes and processes the target telemetry message to obtain an analysis result.
9. The telemetry message transmission method of claim 7, wherein uploading additional telemetry data in the target additional telemetry message to a controller to enable the controller to analyze the target telemetry message, and obtaining an analysis result includes:
and sending a target telemetry message to a controller, and if the telemetry field data in the target telemetry message is missing, filling the target telemetry message by the controller according to the telemetry field data corresponding to the historical telemetry message.
10. The telemetry message transmission method of claim 2 wherein obtaining the key value of the target telemetry message comprises:
splicing according to the 5-tuple in the target remote measurement message to obtain a spliced 5-tuple;
And acquiring the hash value of the spliced 5-tuple as a key value of the target remote measurement message.
11. The method of claim 10, wherein the key is used to construct an index and compare, and the index is stored in a preset storage module.
12. The telemetry message transmission method of claim 10, wherein the 5-tuple comprises: source IP address, destination IP address, source port number, destination port number, and protocol type.
13. The telemetry message transmission method of claim 12 wherein the concatenating according to the 5-tuple in the target telemetry message comprises:
splicing the 5-tuple in the target remote measurement message according to a preset sequence, wherein the preset sequence comprises a source IP address, a destination IP address, a source port number and a destination port number to a protocol type.
14. The telemetry message transmission method of claim 2, wherein the obtaining the pre-stored historical telemetry message according to the key value comprises:
and acquiring a prestored historical remote message from a preset storage module according to the key value, wherein the key value of the historical remote message is the same as the key value of the target remote message.
15. The telemetry message transmission method of claim 1 wherein the obtaining the target telemetry message comprises:
receiving a common message sent by a first server, wherein the common message is used for being sent to a second server;
and identifying a target remote measurement message in the common message.
16. The telemetry message transmission method of claim 15, wherein the identifying the target telemetry message in the normal message comprises:
and analyzing the header in the common message or presetting an analysis protocol through the DSCP value to identify a target remote measurement message in the common message.
17. A telemetry message transmission apparatus for use with a first switch, the apparatus comprising:
the first acquisition module is used for acquiring a target telemetry message, wherein the target telemetry message comprises at least one first telemetry column data;
the second acquisition module is used for acquiring a pre-stored history remote measurement message, wherein the history remote measurement message is stored in a pre-set storage module and comprises second remote measurement column data;
the comparison module is used for comparing the first telemetry column data of the target telemetry message with the second telemetry column data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message;
The transmission module is used for determining whether the target remote measurement message is transmitted or not according to the relation between the difference value and a preset threshold value;
the telemetry field data includes: switch_ id, latency, queue _offset and queue_depth;
the comparing the first telemetry field data of the target telemetry message with the second telemetry field data of the history telemetry message to obtain a difference value between the target telemetry message and the history telemetry message comprises the following steps:
acquiring first telemetry field data of the target telemetry message and second telemetry field data of the history telemetry message;
and comparing the first telemetry field data with the second telemetry field data based on the same telemetry field to obtain a difference value between the first telemetry field data and the second telemetry field data.
18. A communication device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor;
the processor is configured to read a program in the memory to implement the telemetry message transmission method according to any one of claims 1 to 16.
19. A readable storage medium storing a program which when executed by a processor implements a telemetry message transmission method according to any one of claims 1 to 16.
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