CN110708250A - Method for improving data forwarding performance, electronic equipment and storage medium - Google Patents
Method for improving data forwarding performance, electronic equipment and storage medium Download PDFInfo
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- CN110708250A CN110708250A CN201910791487.2A CN201910791487A CN110708250A CN 110708250 A CN110708250 A CN 110708250A CN 201910791487 A CN201910791487 A CN 201910791487A CN 110708250 A CN110708250 A CN 110708250A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
- H04L45/7453—Address table lookup; Address filtering using hashing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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Abstract
The invention discloses a method for improving data forwarding performance, which comprises the following steps: obtaining a hash value corresponding to the data message according to the data obtained by analysis; searching and matching the hash value obtained by calculation in a hash chain table, judging whether the matching is successful, if so, executing message sending, and if not, executing recording; inquiring corresponding address information in a hash chain table through a hash value, and performing message assembly according to the acquired address information to send a packaged message from an opposite-end Ethernet port; and processing the data message according to the protocol stack processing flow and inserting the data message into the hash chain table. The invention also discloses an electronic device and a computer readable storage medium. The method for improving the data forwarding performance of the invention records the same type of messages for the first time, directly encapsulates the subsequent messages to forward the packets without going through the protocol stack processing flow, reduces the processing of the messages by the CPU, reduces the utilization rate of the CPU and improves the forwarding efficiency.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for improving data forwarding performance, an electronic device, and a storage medium.
Background
SD-WAN, a wide area software defined network, is used to connect enterprise networks, data centers, internet applications, and cloud services across a wide geographic range. With the rapid development of SD-WAN in recent years, there is also a higher demand for SD-WAN devices, which requires better rate and performance in data forwarding. In current devices, the performance of L2TP VPN needs to be further improved to meet network service requirements.
In the current device, the data forwarding procedure of the L2TP VPN is to receive a data packet through the ethernet interface on the lan (wan) side, then send the data packet to the L2TP tunnel interface through the network protocol processing, and send the data packet out through the ethernet interface on the wan (lan) side after the data packet is processed through the L2TP protocol. When a large number of data packets with the same characteristics pass through at the same time, data processing is slow, forwarding performance is relatively poor, and data packet loss is caused.
Disclosure of Invention
In order to overcome the defects of the prior art, an object of the present invention is to provide a method for improving data forwarding performance, which can reduce the CPU usage of the device and improve the data forwarding performance.
Another object of the present invention is to provide an electronic device that can reduce the CPU usage of the device and improve the data transfer performance.
It is a further object of the present invention to provide a computer readable storage medium that reduces device CPU usage and improves data forwarding performance.
One of the purposes of the invention is realized by adopting the following technical scheme:
a method for improving data forwarding performance includes the following steps:
and (3) analyzing: analyzing the received data message at the network equipment interface layer;
a calculation step: calculating to obtain a hash value corresponding to the data message according to the analyzed data;
matching: searching and matching the hash value obtained by calculation in a hash chain table, judging whether the matching is successful, if so, executing a message sending step, and if not, executing a recording step;
a message sending step: inquiring corresponding address information in a hash chain table through a hash value, and performing message assembly according to the acquired address information to send a packaged message from an opposite-end Ethernet port;
a recording step: and processing the data message according to the protocol stack processing flow, and analyzing the data message at a packet sending function so as to record the L2TP information and the address information and insert the information into the hash chain table.
Further, the data packet includes address information, which is specifically quintuple information, where the quintuple information includes a source address, a destination address, a source port, a destination port, and a protocol type of the data packet.
Further, the calculating step specifically comprises: and calculating the unique hash value corresponding to the data message according to the source address, the destination address, the source port, the destination port and the protocol type of the data message.
Further, the recording step specifically includes the steps of:
after the data message enters the L2TP virtual interface function, the data message is processed through an L2TP protocol stack;
the data message is forwarded to an Ethernet port interface driver connected with L2TP through a packet sending function; the packet sending function analyzes the data message to obtain L2TP information and quintuple information, and inserts the L2TP information and quintuple information into the hash chain table.
Further, in the message sending step, when the message is encapsulated, if the L2TP server is at the WAN side, the L2TP header processing is carried out on the data message coming from the LAN side, and the message header removing processing is carried out on the data message coming from the WAN side; if the L2TP server is on the LAN side, the data message from WAN side is processed by adding L2TP header, and the data message from LAN side is processed by removing header.
Further, in the message sending step, after the message is assembled, the packaged message is checked and calculated again; and the processed message is sent out from the opposite terminal through a packet sending function of the Ethernet interface.
Further, data obtained by analyzing in a network device interface layer is written into a sk _ buff structure, and the sk _ buff structure is added with the following fields: hash value, egress source address, destination address, source port, destination port.
Further, the hash value is calculated by one of MD4, MD5, SHA-1, SHA-256, SHA-384 and SHA-512.
The second purpose of the invention is realized by adopting the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method for improving data forwarding performance according to any one of the objects of the invention when executing the computer program.
The third purpose of the invention is realized by adopting the following technical scheme:
a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method of improving data forwarding performance according to any one of the objects of the invention.
Compared with the prior art, the invention has the beneficial effects that:
the method for improving the data forwarding performance records the same type of messages for the first time, namely, the protocol stack processing flow is taken, and the subsequent messages are directly packaged and forwarded to the packet without the protocol stack processing flow, so that the processing of the messages by a CPU is reduced, the utilization rate of the CPU is reduced, and the forwarding efficiency is improved.
Drawings
Fig. 1 is a flowchart of a method for improving data forwarding performance according to a first embodiment;
fig. 2 is a flow chart of packet forwarding before acceleration in the first embodiment;
fig. 3 is a flow chart of packet forwarding after acceleration in the first embodiment.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example one
In addition to the manner mentioned in the background art, there is also processing for packet sending test of the L2TP tunnel endpoint, and the load of the original L2TP tunnel is reduced by modifying the source port and establishing a new L2TP tunnel, so as to implement load balancing; however, in the existing scheme, each data packet needs to be processed by the protocol stack, and only a new tunnel is established to share the transmission of the packet between the tunnels, so that the processing of the packet by the CPU is not reduced, and the performance improvement effect is not so good. The embodiment mainly improves the forwarding performance by improving the data packet forwarding processing flow. The method has the advantages that the same type of messages are recorded for the first time (protocol stack flow is moved), subsequent messages are directly packaged and forwarded to the packet, the protocol stack processing flow is not needed to be moved, the processing of a CPU (central processing unit) on the messages is reduced, the utilization rate of the CPU is reduced, the forwarding efficiency is improved, and the forwarding performance is greatly improved when the messages with the same large flow rate and quintuple are processed.
As shown in fig. 1, the present embodiment provides a method for improving data forwarding performance, including the following steps:
s1: analyzing the received data message at the network equipment interface layer; the data message includes address information, which is specifically quintuple information, and the quintuple information includes a source address, a destination address, a source port, a destination port, and a protocol type of the data message. In addition to the quintuple information mentioned in the present embodiment, it may be heptatuple information or the like.
S2: calculating to obtain a hash value corresponding to the data message according to the analyzed data; specifically, the hash value uniquely corresponding to the data packet is calculated through a source address, a destination address, a source port, a destination port and a protocol type of the data packet. The hash value is calculated by one of MD4, MD5, SHA-1, SHA-256, SHA-384 and SHA-512.
In specific implementation, the steps are specifically as follows: writing the data obtained by analyzing the interface layer of the network equipment into a sk _ buff structure, wherein the sk _ buff structure is added with the following fields: hash value, egress source address, destination address, source port, destination port.
When the network device interface layer receives the data packet, some fields are analyzed and calculated and written into the sk _ buff, the structure sk _ buff needs to be modified, some required fields are added, and phpHash, an outlet source address, a destination address, a source port, a destination port and the like are uniquely identified, and the structure of the system is modified as follows.
S3: searching and matching the hash value obtained by calculation in a hash chain table, judging whether the matching is successful, if so, executing step S4, and if not, executing step S5;
s4: inquiring corresponding address information in a hash chain table through a hash value, and performing message assembly according to the acquired address information to send a packaged message from an opposite-end Ethernet port;
when the message is assembled, checking and calculating the packaged message again; and the processed message is sent out from the opposite terminal through a packet sending function of the Ethernet interface. When the message encapsulation is carried out, if the L2TP server is positioned at the WAN side, the data message coming from the LAN side is subjected to the processing of adding an L2TP header, and the data message coming from the WAN side is subjected to the processing of removing the header; if the L2TP server is on the LAN side, the data message from WAN side is processed by adding L2TP header, and the data message from LAN side is processed by removing header.
That is, when corresponding data is recorded in the hash chain table, and then a data packet with the same five-tuple comes in from the ethernet port, the network device interface layer packet receiving function can search the hash chain table by calculating a unique identifier phpHash, and obtain the source address, the destination address, the source port, the destination port and the L2TP information converted after forwarding, so that packet assembly can be performed, the data header is replaced, data is encapsulated, verification and calculation are performed again, and the packet is sent from the opposite end through the ethernet interface packet sending function after processing is completed; therefore, the protocol stack processing flow is not needed to be carried out, and the processing of the CPU to the data message is reduced.
S5: and processing the data message according to the protocol stack processing flow, and analyzing the data message at a packet sending function so as to record the L2TP information and the address information and insert the information into the hash chain table. The step S5 specifically includes the following steps:
after the data message enters the L2TP virtual interface function, the data message is processed through an L2TP protocol stack;
the data message is forwarded to an Ethernet port interface driver connected with L2TP through a packet sending function; the packet sending function analyzes the data message to obtain L2TP information and quintuple information, and inserts the L2TP information and quintuple information into the hash chain table. Because the hash chain table does not have the data, after the ethernet interface processes the packet, the data is processed through the protocol stack flow, and the data enters the L2TP virtual interface data receiving interface function, and then is processed through the L2TP protocol stack, and then is forwarded to the ethernet interface driver connected with the L2TP through the packet sending function. In the L2TP packet forwarding function, it is necessary to analyze the data packet and store the related data information, and insert the L2TP related information useful for packet, IP address, and port data into the hash chain. The linked list information defines:
through the steps, the data which are not stored in the hash chain table can be analyzed and stored, and the subsequent comparison is convenient.
As shown in fig. 2, it is a flow chart of packet forwarding before acceleration; as shown in fig. 3, it is an accelerated packet forwarding flow diagram, that is, this embodiment introduces a mechanism to process forwarding data, and first analyzes a received packet at an interface layer of a network device, calculates a source address, a destination address, a source port, a destination port, and a protocol type of the packet to obtain a unique phpHash value, searches and matches the phpHash value in a linked list, and if the matching fails for the first time, the data is processed according to a protocol stack processing flow, records and inserts L2TP related information and the source address, the destination address, the source port, and the destination port of the data packet into a hash linked list at an L2TP virtual interface data exit function, and finally records some other packet header information at an exit end and stores the other packet header information into a corresponding structure.
When the messages with the same quintuple enter the network equipment interface layer again, corresponding data can be found in the linked list through the phpHash value, message header assembly is carried out through the obtained data, verification and calculation are carried out, then the messages can be sent out from the Ethernet port at the opposite end, the messages are prevented from entering an L2TP virtual interface, the processing flow of the messages is reduced through the L2TP protocol processing and other flows, the use of a CPU of the equipment can be reduced, and the forwarding performance is improved.
The method in the embodiment is transplanted to equipment for processing, when a 1024Byte stream data performance test is carried out and forwarding acceleration is not carried out, the throughput is only about 200Mbps, the CPU occupancy rate reaches more than 90%, and after the forwarding acceleration processing is carried out, the throughput can reach more than 900Mbps under the same test condition; there is a large increase in throughput.
Example two
The second embodiment discloses an electronic device, which comprises a processor, a memory and a program, wherein the processor and the memory can adopt one or more programs, the program is stored in the memory and configured to be executed by the processor, and when the processor executes the program, the method for improving the data forwarding performance of the first embodiment is realized. The electronic device may be a CPE, i.e. a customer premises equipment.
EXAMPLE III
The third embodiment discloses a computer-readable storage medium, which is used for storing a program, and when the program is executed by a processor, the method for improving the data forwarding performance of the first embodiment is realized.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling an electronic device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the content-based update notification apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A method for improving data forwarding performance, comprising the steps of:
and (3) analyzing: analyzing the received data message at the network equipment interface layer;
a calculation step: calculating to obtain a hash value corresponding to the data message according to the analyzed data;
matching: searching and matching the hash value obtained by calculation in a hash chain table, judging whether the matching is successful, if so, executing a message sending step, and if not, executing a recording step;
a message sending step: inquiring corresponding address information in a hash chain table through a hash value, and performing message assembly according to the acquired address information to send a packaged message from an opposite-end Ethernet port;
a recording step: and processing the data message according to the protocol stack processing flow, and analyzing the data message at a packet sending function so as to record the L2TP information and the address information and insert the information into the hash chain table.
2. The method as claimed in claim 1, wherein the data packet includes address information, the address information is specifically five-tuple information, and the five-tuple information includes a source address, a destination address, a source port, a destination port, and a protocol type of the data packet.
3. The method for improving data forwarding performance according to claim 2, wherein the calculating step specifically includes: and calculating the unique hash value corresponding to the data message according to the source address, the destination address, the source port, the destination port and the protocol type of the data message.
4. The method for improving data forwarding performance according to claim 2, wherein the recording step specifically includes the steps of:
after the data message enters the L2TP virtual interface function, the data message is processed through an L2TP protocol stack;
the data message is forwarded to an Ethernet port interface driver connected with L2TP through a packet sending function; the packet sending function analyzes the data message to obtain L2TP information and quintuple information, and inserts the L2TP information and quintuple information into the hash chain table.
5. The method according to claim 1, wherein in the message sending step, if the L2TP server is on the WAN side during the message encapsulation, the L2TP header processing is performed on the data message incoming from the LAN side, and the header removal processing is performed on the data message incoming from the WAN side; if the L2TP server is on the LAN side, the data message from WAN side is processed by adding L2TP header, and the data message from LAN side is processed by removing header.
6. The method according to claim 1, wherein in the message sending step, when the message is assembled, the checksum calculation is performed again on the encapsulated message; and the processed message is sent out from the opposite terminal through a packet sending function of the Ethernet interface.
7. The method as claimed in claim 1, wherein the data parsed at the network device interface layer is written into a sk _ buff structure, and the sk _ buff structure is added with the following fields: hash value, egress source address, destination address, source port, destination port.
8. The method of claim 1, wherein the hash value is calculated by one of MD4, MD5, SHA-1, SHA-256, SHA-384, and SHA-512.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements a method of improving data forwarding performance as claimed in any one of claims 1 to 8 when executing the computer program.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program when executed by a processor implements a method of improving data forwarding performance as claimed in any one of claims 1-8.
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Cited By (9)
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| CN111711577A (en) * | 2020-07-24 | 2020-09-25 | 杭州迪普信息技术有限公司 | Message forwarding method and device of flow control equipment |
| CN112511441A (en) * | 2020-11-18 | 2021-03-16 | 潍柴动力股份有限公司 | Message processing method and device |
| CN112583797A (en) * | 2020-11-30 | 2021-03-30 | 深圳力维智联技术有限公司 | Multi-protocol data processing method, device, equipment and computer readable storage medium |
| CN114281547A (en) * | 2021-12-28 | 2022-04-05 | 北京天融信网络安全技术有限公司 | Data message processing method and device, electronic equipment and storage medium |
| CN114338529A (en) * | 2021-12-29 | 2022-04-12 | 杭州迪普信息技术有限公司 | Quintuple rule matching method and device |
| CN114338448A (en) * | 2021-12-29 | 2022-04-12 | 北京天融信网络安全技术有限公司 | Performance test method and device, electronic equipment and storage medium |
| CN116016035A (en) * | 2023-02-16 | 2023-04-25 | 北京天维信通科技有限公司 | Method for applying multipath service in same tunnel by utilizing quintuple |
| CN116723150A (en) * | 2023-08-07 | 2023-09-08 | 北京立思辰安科技术有限公司 | Data packet forwarding system |
| CN117376272A (en) * | 2023-12-08 | 2024-01-09 | 广州通则康威科技股份有限公司 | Message length adjustment method, device, system and storage medium |
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| CN116723150A (en) * | 2023-08-07 | 2023-09-08 | 北京立思辰安科技术有限公司 | Data packet forwarding system |
| CN117376272A (en) * | 2023-12-08 | 2024-01-09 | 广州通则康威科技股份有限公司 | Message length adjustment method, device, system and storage medium |
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