CN116232710B - Log message sending and transmitting method and system for network flow acquisition equipment - Google Patents
Log message sending and transmitting method and system for network flow acquisition equipment Download PDFInfo
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- CN116232710B CN116232710B CN202310128799.1A CN202310128799A CN116232710B CN 116232710 B CN116232710 B CN 116232710B CN 202310128799 A CN202310128799 A CN 202310128799A CN 116232710 B CN116232710 B CN 116232710B
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 238000000547 structure data Methods 0.000 claims description 50
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000005538 encapsulation Methods 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1425—Traffic logging, e.g. anomaly detection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention discloses a method and a system for sending and transmitting log information of network flow acquisition equipment. The method for sending the log message of the network flow acquisition equipment comprises the following steps: acquiring log information of network traffic, and packaging the log information into an STLV structure message packet; and if the length of the message packet is smaller than the maximum data packet size, packaging the message packet into an MTP message block, and transmitting the MTP message block after adding the universal message header. The method supports the aggregation and transmission of the log messages, and improves the transmission efficiency of the log messages of the transmitting end.
Description
Technical Field
The invention belongs to the technical field of network flow analysis, and particularly relates to a method and a system for sending and transmitting log messages of network flow acquisition equipment.
Background
With the advancement of digital transformation process, IT infrastructure, mobile internet and other technologies develop and change, and the network scale becomes more and more complex. The network traffic is deeply analyzed and is valued by all parties. For example, a network operator needs to deploy a flow acquisition device at a key node of the network to detect and analyze network flow, support the operator to develop service differentiation, charging diversity and marketing refinement work, and provide value-added service for clients; the IT department of the enterprise needs to deploy flow acquisition equipment at key nodes of the network, acquire key performance indexes of the network and the service, and provide high-efficiency support for network operation and maintenance; under the big background of network attack organization, network security faces more serious challenges, and related regulatory authorities need to deploy flow acquisition devices at network key nodes for protecting network space security and protecting people from illegal attack.
Under the current technical architecture, network traffic collection equipment (such as DPI equipment) is deployed at a network key node, traffic on a link is collected and identified, and log information (including metadata such as statistical data, traffic characteristics and key content fields) is sent to service analysis equipment, but the following problems exist: in the technical field of network traffic analysis, the sending of log messages lacks a unified standard, and the incompatibility of a message interface between acquisition equipment and service analysis equipment often occurs.
Disclosure of Invention
The invention aims to: aiming at the problems in the prior art, the invention provides a method for sending the log message of the network flow acquisition equipment, which supports the aggregation and the sending of the log message and improves the sending efficiency of the log message of a sending end.
The technical scheme is as follows: the invention discloses a method for sending log information of network flow acquisition equipment, which comprises the following steps:
acquiring log information of network traffic, and packaging the log information into an STLV structure message packet;
and if the length of the message packet is smaller than the maximum data packet size, packaging the message packet into an MTP message block, and transmitting the MTP message block after adding the universal message header.
Further, the STLV structure includes one STLV structure header 100 and at least one STLV structure data section 200;
the STLV structure header 100 includes a log type 101, a log version number 102;
the STLV structure data section 200 includes a structure identification code 201, a structure data end identification code 202, a structure type identification code 203, a structure data length 204, and structure data 205.
Further, the MTP message block includes an MTP message header 300 and MTP message data 400;
the MTP message header comprises an MTP message identification code (301), an MTP message block total length (302), an MTP message block serial number (303) and an MTP message block end identification code (304);
the MTP message data (400) is an STLV structured message packet.
Further, the maximum packet size is the difference between the value of the maximum transmission unit and the length of the MTP message header (300).
Further, the generic message header includes an MTP version number.
Further, the method further comprises the following steps:
if the length of the message packet is greater than the maximum data packet size, slicing the message packet, wherein the length of each sliced message sub-packet is smaller than the maximum data packet size;
the segmented message sub-packets are packaged into MTP message blocks, the MTP message identification codes (301) in each MTP message block are the same, the MTP message block serial numbers (303) are increased progressively according to the sequence of the message sub-packets in the message packet before segmentation, the MTP message block end identification codes (304) in the MTP message block corresponding to the last message sub-packet are 'end', and the MTP message block end identification codes (304) in the MTP message blocks corresponding to the rest message sub-packets are 'not end'.
On the other hand, the invention also discloses a system for realizing the method for sending the log message of the network flow acquisition equipment, which comprises the following steps:
the network flow log information acquisition module is used for acquiring log information of the network flow;
the STLV structure encapsulation module is used for encapsulating the acquired network traffic log information into an STLV structure message packet;
the MTP message encapsulation module is used for encapsulating the message packet formed by the STLV structure into an MTP message block;
and the message sending module is used for adding the general message header to the MTP message block and then sending the MTP message block.
On the other hand, the invention also discloses a method for transmitting the log message of the network flow acquisition equipment, wherein the log message is transmitted by adopting the method for transmitting the log message of the network flow acquisition equipment, and the method further comprises the following steps:
analyzing MTP message blocks from received data;
analyzing a message packet consisting of an STLV structure from the analyzed MTP message block;
and analyzing the network traffic log information from the message packet.
On the other hand, the invention also discloses a system for realizing the method for transmitting the log message of the network flow acquisition equipment, which comprises a sending system and a receiving system, wherein the sending system is the system for sending the log message of the network flow acquisition equipment, and the receiving system comprises:
the message receiving module is used for analyzing MTP message blocks from the received data;
the MPT message block analysis module is used for analyzing a message packet consisting of an STLV structure from the MTP message block;
and the STLV structure analysis module is used for analyzing the network flow log information from the message packet.
The beneficial effects are that: the method and the system for sending and transmitting the log message of the network flow acquisition equipment disclosed by the invention have the following beneficial effects:
1. the method for sending the log message of the network traffic acquisition equipment disclosed by the invention supports the aggregation and the sending of the log message, and improves the sending efficiency of the log message of the sending end; simultaneously supporting log message slicing, and sending the current acquired log message slicing to a receiving end when the resource of the sending end is insufficient;
2. supporting a log message to bear a multi-structure, and describing network traffic log messages from a multi-dimensional view (such as stream statistics information, network access behavior information and the like); support the fragmentation of the very long log message, for example, can extract and send in time to the very long log message sender, reorganize it by the receiver, lighten the buffer pressure of sender;
3. adopting a STLV (Strcut TLV) structure to package log information, and supporting the user to custom expand the structure and the structural members; has important significance for promoting the technical development of the network traffic analysis field.
Drawings
FIG. 1 is a flow chart of a method for sending log messages of a network traffic acquisition device disclosed by the invention;
fig. 2 is a schematic composition diagram of the STLV structure;
FIG. 3 is a schematic diagram of the composition of an MTP message block;
FIG. 4 is a schematic diagram of a transmit data format;
FIG. 5 is a schematic diagram of a data format transmitted after fragmentation;
fig. 6 is a schematic diagram of a log message sending system of a network traffic collection device according to the present invention;
FIG. 7 is a flow chart of a method for transmitting log messages of a network traffic acquisition device according to the present invention;
fig. 8 is a schematic diagram of a log message transmission system of a network traffic collection device according to the present invention.
Detailed Description
The invention is further elucidated below in connection with the drawings and the detailed description.
Example 1
The embodiment discloses a method for sending log information of network traffic acquisition equipment, as shown in fig. 1, comprising the following steps:
step 1, acquiring log information of network traffic, and packaging the log information into an STLV structure message packet;
in the present invention, the STLV structure includes one STLV structure header 100 and at least one STLV structure data section 200, as shown in fig. 2. The STLV structure header 100 includes a log type 101, a log version number 102; in this embodiment, the length of the log type 101 and the log version number 102 is 8bits, and in addition, in order to facilitate the late expansion, the present embodiment adds a 16bits reserved bit 103 to the STLV structure header 100. The STLV structure data section 200 includes a structure identification code 201, a structure data end identification code 202, a structure type identification code 203, a structure data length 204, and structure data 205. In this embodiment, the structure identification code 201 is 16bits, the structure data end identification code 202 is 1bit, the structure type identification code 203 is 15bits, the structure data length 204 is 32bits, and the structure data 205 is the log information of the user program.
Assuming that the network traffic of a certain user is to be counted, the acquired user log information comprises traffic statistics of video, pictures and texts, and the packaged STLV structure message packet comprises three STLV structure data parts, wherein the values of the structure identification codes 201 in the three STLV structure data parts are the same, and the log information of the same user is indicated; the structure type identification codes 203 are respectively type codes of videos, pictures and texts so as to distinguish different types of traffic; the structure data end identification code 202 in the first two STLV structure data sections are both "0", indicating that the data is not ended, and thereafter there is data, and the structure data end identification code 202 in the last STLV structure data section is "1", indicating that the data is ended; the value of the structure data length 204 is the length of the structure data 205 in the STLV structure data section, and information on video, picture, text traffic statistics in log information is stored in the structure data 205.
Step 2, if the length of the message packet is smaller than the maximum data packet size, the message packet is packaged into an MTP message block, and the MTP message block is sent after a universal message header is added;
in the present invention, the MTP message block includes an MTP message header 300 and MTP message data 400; as shown in fig. 3. The MTP message header includes an MTP message identification code 301, an MTP message block total length 302, an MTP message block sequence number 303, and an MTP message block end identification code 304. In this embodiment, the MTP message identifier 301 is 64bits, which is a global unique identifier; the total length 302 of the MTP message block and the length of the MTP message block sequence number 303 are both 16bits, and the MTP message block end identification code 304 is 1bit. In addition, to facilitate late expansion, the present embodiment adds a 31bits reserved bit 305 to the MTP message header 300, which also enables 4 byte alignment of the MTP message header 300.
The MTP message data 400 is the STLV structure message packet encapsulated in step 1.
In this embodiment, the maximum packet size is the difference between the value of the maximum transmission unit MTU and the length of the MTP message header.
The generic message header includes an MTP version number. The transmission data format after adding the Common Header is shown in fig. 4. In this embodiment, the MTP version number is 8bits data, and in addition, for later expansion, a reserved bit of 24bits is added, so that the universal message header can be aligned by 4 bytes.
Step 3, if the length of the message packet is greater than the maximum data packet size, slicing the message packet, wherein the length of each sliced message sub-packet is smaller than the maximum data packet size;
the segmented message sub-packets are packaged into MTP message blocks, the MTP message identification codes 301 in each MTP message block are the same, the MTP message block serial numbers 303 are increased according to the sequence of the message sub-packets in the message packet before segmentation, the MTP message block end identification codes 304 in the MTP message block corresponding to the last message sub-packet are 'end', and the MTP message block end identification codes 304 in the MTP message blocks corresponding to the rest message sub-packets are 'not end'; thereby realizing the transmission of the ultra-long STLV structure message.
The transmission data format after adding the common message header is shown in fig. 5.
The embodiment also discloses a system for implementing the method for sending the log message of the network traffic acquisition device, as shown in fig. 6, including:
the network flow log information acquisition module is used for acquiring log information of the network flow;
the STLV structure encapsulation module is used for encapsulating the acquired network flow log information into an STLV structure message packet according to the step 1;
the MTP message encapsulation module is used for encapsulating the message packet formed by the STLV structure into an MTP message block according to the step 2;
and the message sending module is used for adding the general message header to the MTP message block and then sending the MTP message block.
Example 2
The embodiment discloses a method for transmitting log messages of a network traffic acquisition device, wherein the log messages are sent according to the sending method in embodiment 1, as shown in fig. 7, and the method further comprises:
step 4, analyzing MTP message blocks from the received data;
step 5, analyzing a message packet consisting of the STLV structure from the analyzed MTP message block;
and 6, analyzing the network flow log information from the message packet.
The receiving side reads the received data, and skips the Common message header Common to read the MTP message header.
If the read MTP message block end identification code 304 in the MTP message header is 'end', only one MTP message block is read from the back of the MTP message header according to the value of the total length 302 of the MTP message block, and the data in the MTP message data 400 is read;
if the MTP message block end identification code 304 in the read MTP message header is "not ended," then there are multiple MTP message blocks. And reading the MTP message header of the next MTP message block according to the value of the total length 302 of the MTP message block, and so on, and acquiring all MTP message headers in the received data. Whether the same message packet is fragmented is determined based on whether the MTP message identification codes 301 in the MTP message headers are identical. If the MTP message blocks are segmented in the same message packet, the MTP message data in the MTP message blocks are sequentially analyzed according to the sequence numbers 303 of the MTP message blocks in the MTP message header, and the MTP message blocks are spliced together in sequence, namely the segmented ultra-long STLV structure message packets are recovered.
And skipping the STLV structure header from the MTP message data, reading the subsequent STLV structure data part, analyzing the structure data 205 according to the values of the structure identification code 201, the structure data end identification code 202, the structure type identification code 203 and the structure data length 204, and obtaining the original network flow log information sent by the sending end.
The embodiment also discloses a system for implementing the method for transmitting the log message of the network traffic acquisition device, as shown in fig. 8, including a sending system 500 and a receiving system 600, where the composition of the sending system 500 is shown in fig. 6, and the receiving system 600 includes:
the message receiving module is used for analyzing the MTP message block from the received data according to the step 4;
an MPT message block analysis module for analyzing the message packet composed of the STLV structure from the MTP message block according to the step 5;
and the STLV structure analysis module is used for analyzing the network flow log information from the message packet according to the step 6.
Claims (9)
1. The method for sending the log message of the network flow acquisition equipment is characterized by comprising the following steps:
acquiring log information of network traffic, and packaging the log information into a structured STLV structure message packet with a type length value;
if the length of the message packet is smaller than the maximum data packet size, the message packet is packaged into an MTP message block, and the MTP message block is sent after the general message header is added;
the acquired log information comprises flow statistics of videos, pictures and texts; the encapsulated STLV structure message packet comprises three STLV structure data parts, wherein the values of the structure identification codes (201) in the three STLV structure data parts are the same, and the three STLV structure data parts represent log information of the same user; the structure type identification codes (203) are respectively type codes of videos, pictures and texts so as to distinguish different types of traffic; the structure data end identification codes (202) in the first two STLV structure data sections are all "0", indicating that the data is not ended, and thereafter there is data, and the structure data end identification code (202) in the last STLV structure data section is "1", indicating that the data is ended; the value of the structure data length (204) is the length of the structure data (205) in the STLV structure data part, and the structure data (205) stores information about video, picture and text traffic statistics in log information.
2. A network traffic acquisition device log message sending method according to claim 1, characterized in that the STLV structure comprises one STLV structure header (100) and at least one STLV structure data section (200);
the STLV structure header (100) includes a log type (101), a log version number (102).
3. The network traffic collection device log message sending method of claim 1, wherein the MTP message block comprises an MTP message header (300) and MTP message data (400);
the MTP message header comprises an MTP message identification code (301), an MTP message block total length (302), an MTP message block serial number (303) and an MTP message block end identification code (304);
the MTP message data (400) is an STLV structured message packet.
4. A network traffic collecting device log message sending method according to claim 3, characterized in that the maximum packet size is the difference between the value of the maximum transmission unit and the length of the MTP message header (300).
5. The network traffic collection device log message sending method of claim 1, wherein the generic message header comprises an MTP version number.
6. The network traffic collection device log message sending method of claim 3, further comprising:
if the length of the message packet is greater than the maximum data packet size, slicing the message packet, wherein the length of each sliced message sub-packet is smaller than the maximum data packet size;
the segmented message sub-packets are packaged into MTP message blocks, the MTP message identification codes (301) in each MTP message block are the same, the MTP message block serial numbers (303) are increased progressively according to the sequence of the message sub-packets in the message packet before segmentation, the MTP message block end identification codes (304) in the MTP message block corresponding to the last message sub-packet are 'end', and the MTP message block end identification codes (304) in the MTP message blocks corresponding to the rest message sub-packets are 'not end'.
7. A network traffic collection device log message transmission system, comprising:
the network flow log information acquisition module is used for acquiring log information of the network flow; the acquired log information comprises flow statistics of videos, pictures and texts; the encapsulated STLV structure message packet comprises three STLV structure data parts, wherein the values of the structure identification codes (201) in the three STLV structure data parts are the same, and the three STLV structure data parts represent log information of the same user; the structure type identification codes (203) are respectively type codes of videos, pictures and texts so as to distinguish different types of traffic; the structure data end identification codes (202) in the first two STLV structure data sections are all "0", indicating that the data is not ended, and thereafter there is data, and the structure data end identification code (202) in the last STLV structure data section is "1", indicating that the data is ended; the value of the structure data length (204) is the length of the structure data (205) in the STLV structure data part, and the structure data (205) stores information about video, picture and text flow statistics in log information;
the STLV structure encapsulation module is used for encapsulating the acquired network traffic log information into an STLV structure message packet;
the MTP message encapsulation module is used for encapsulating the message packet formed by the STLV structure into an MTP message block;
and the message sending module is used for adding the general message header to the MTP message block and then sending the MTP message block.
8. A method for transmitting a log message of a network traffic collection device, where the log message is sent according to the sending method of any one of claims 1 to 6, and the method further includes:
analyzing MTP message blocks from received data;
analyzing a message packet consisting of an STLV structure from the analyzed MTP message block;
and analyzing the network traffic log information from the message packet.
9. A network traffic collecting device log message transmission system comprising a transmitting system and a receiving system, the transmitting system being the network traffic collecting device log message transmitting system of claim 7, the receiving system comprising:
the message receiving module is used for analyzing MTP message blocks from the received data;
the MPT message block analysis module is used for analyzing a message packet consisting of an STLV structure from the MTP message block; and the STLV structure analysis module is used for analyzing the network flow log information from the message packet.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912943A (en) * | 2019-12-30 | 2020-03-24 | 北京明朝万达科技股份有限公司 | Cross-network traffic analysis system |
| CN114817190A (en) * | 2022-04-29 | 2022-07-29 | 阿里云计算有限公司 | Log synchronization method, device, system, equipment and storage medium |
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| TWI227612B (en) * | 2003-06-25 | 2005-02-01 | Hon Hai Prec Ind Co Ltd | System and method for IP logging |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912943A (en) * | 2019-12-30 | 2020-03-24 | 北京明朝万达科技股份有限公司 | Cross-network traffic analysis system |
| CN114817190A (en) * | 2022-04-29 | 2022-07-29 | 阿里云计算有限公司 | Log synchronization method, device, system, equipment and storage medium |
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