CN109474525B - Message processing method, device, equipment and readable storage medium - Google Patents
Message processing method, device, equipment and readable storage medium Download PDFInfo
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- CN109474525B CN109474525B CN201811540425.6A CN201811540425A CN109474525B CN 109474525 B CN109474525 B CN 109474525B CN 201811540425 A CN201811540425 A CN 201811540425A CN 109474525 B CN109474525 B CN 109474525B
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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
- H04L45/02—Topology update or discovery
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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
- H04L45/70—Routing based on monitoring results
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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
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Abstract
The application provides a message processing method, a message processing device, message processing equipment and a readable storage medium. Receiving a message; judging whether a fast forwarding table item matched with the message is recorded locally or not; when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message; if yes, the message is forwarded. According to the method and the device, the state detection function is added on the rapid forwarding process, the phenomenon that the message which is not passed by the state detection enters the whole process to be processed is reduced, the occupation of CPU resources is saved, the delay of message forwarding time in the rapid forwarding process is further reduced, and the message forwarding efficiency of the network equipment is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for processing a packet.
Background
In order to improve the message forwarding efficiency of the network device, the fast forwarding function is usually used to meet the requirement of people for fast forwarding messages in a short time. The core of the fast forwarding technology is that the routing and service processing are completed at one time, so that the resource consumption caused by switching between tasks in network equipment, message cache management and the like is reduced, the message forwarding time is shortened, and the message forwarding efficiency is improved.
In the related technology, the fast forwarding is mainly to obtain a fast forwarding table entry through a session table entry, and when the session table entry is in a stable state, the service processing is completed by using a service mark recorded in the available fast forwarding table entry, and a message is forwarded; when the session table entry is in an unstable state, the message needs to be transferred to a full flow process, the state of the message is detected in the full flow process, and finally the message is subjected to service processing.
When a large number of abnormal messages enter the network equipment, the rapid forwarding process does not support state detection, so that all the abnormal messages enter the full-flow processing, the CPU resource of the network equipment is occupied by the large number of abnormal messages, the time delay of the network equipment for forwarding and processing normal messages is increased, and the message forwarding efficiency of the network equipment is influenced.
Disclosure of Invention
In view of this, the present application provides a method, an apparatus, a device and a readable storage medium for processing a packet, so as to solve the problems in the prior art that a network device has a large time delay for forwarding a packet and a low packet forwarding efficiency.
Specifically, the method is realized through the following technical scheme:
in a first aspect, a method for processing a packet is provided, where the method includes:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, the message is forwarded.
In a second aspect, an apparatus for processing a packet is provided, where the apparatus includes:
a receiving unit, configured to receive a packet;
the first judging unit is used for judging whether a fast forwarding table item matched with the message is recorded locally or not;
a second determining unit, configured to determine whether a session corresponding to the session information satisfies a condition of switching from a current state to a session state matched with the packet if the fast forwarding entry includes the session information when the fast forwarding entry is locally recorded;
and the first execution unit is used for forwarding the message if the session corresponding to the session information meets the condition of switching from the current state to the session state matched with the message.
In a third aspect, a message processing device is provided, where the device includes: the system comprises an internal bus, a memory, a processor and an external interface which are connected through the internal bus; wherein the content of the first and second substances,
the memory is used for storing machine readable instructions corresponding to message processing;
the processor is configured to read the machine-readable instructions on the memory and execute the instructions to implement the following operations:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, the message is forwarded.
In a fourth aspect, a machine-readable storage medium having stored thereon computer instructions which, when executed, perform the following:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, the message is forwarded.
According to the technical scheme, in the embodiment of the application, whether a fast forwarding table item matched with the message is locally recorded or not is judged by receiving the message, when the fast forwarding table item (including session information) is locally recorded, whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message or not is determined, and if yes, the message is forwarded. According to the method and the device, the state detection function is added on the rapid forwarding process, the phenomenon that the message which is not passed by the state detection enters the whole process to be processed is reduced, the occupation of CPU resources is saved, the delay of message forwarding time in the rapid forwarding process is further reduced, and the message forwarding efficiency of the network equipment is improved.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for processing a message according to the present application;
fig. 2 is a flowchart of another embodiment of a method for processing a message according to the present application;
fig. 3 is a block diagram of an embodiment of a device for processing messages according to the present application;
fig. 4 is a schematic diagram of a hardware structure of a network device according to the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application are further described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart of an embodiment of a method for processing a message according to the present application, where the embodiment may include the following steps:
In an optional implementation manner, when the network device receives a message, the information of the message is analyzed according to the received message, where the information may include an MAC address, an IP address, a protocol number, and port information, and information related to a four-layer header of the message and a message state, such as information of a flag of a TCP protocol message, a type of an ICMP protocol message, and the information of the analyzed message may be used to query a fast forwarding table entry in a subsequent forwarding process.
And 102, judging whether a fast forwarding table item matched with the message is recorded locally.
In an optional implementation manner, according to the analyzed message information, it may be queried whether a fast forwarding entry matching the message already exists locally, and if the query result is yes, step 103 is executed; if the query result is negative, whether the message received by the network equipment can be switched to the full-flow processing can be judged according to the analyzed message information. If the whole flow processing cannot be switched to, the packet can be directly lost; if the whole process processing can be carried out, the message can be sent to a corresponding CPU queue for the whole process processing.
In an optional implementation manner, when the fast forwarding entry is locally recorded, the fast forwarding entry may include session related information, and it may be determined whether a session corresponding to the session information satisfies a condition of switching from a current state to a session state matched with the packet according to the session state matched with the packet.
And 104, if yes, forwarding the message.
If the session corresponding to the session information meets the condition of switching from the current state to the session state matched with the message, the received message can be forwarded according to a fast forwarding table entry recorded locally.
As can be seen from the foregoing embodiment, by receiving a packet, it is determined whether a fast forwarding entry matching the packet is locally recorded, and when the fast forwarding entry (including session information in the fast forwarding entry) is locally recorded, it is determined whether a session corresponding to the session information satisfies a condition for switching from a current state to a session state matching the packet, and if so, the packet is forwarded. According to the method and the device, the state detection function is added on the rapid forwarding process, the phenomenon that the message which is not passed by the state detection enters the whole process to be processed is reduced, the occupation of CPU resources is saved, the delay of message forwarding time in the rapid forwarding process is further reduced, and the message forwarding efficiency of the network equipment is improved.
Referring to fig. 2, fig. 2 is a flowchart of another embodiment of a method for processing a message according to the present application, where the embodiment may include the following steps:
In an optional implementation manner, when the fast forwarding entry is locally recorded, the fast forwarding entry may include session related information, and it is determined whether a session corresponding to the session information satisfies a condition of switching from a current state to a session state matched with the packet according to a session state matched with the packet. For example, for the same protocol message, such as a transmission control protocol TCP message, when the network device sends a SYN message to the server and the session state enters the SYN _ send state, if the network device receives a message flag responded by the server as ACK, it needs to enter the ESTABLISHED state, which indicates that the session state may not be normally switched to the session state matched with the message at this time; and if the session corresponding to the session information does not satisfy the state of conversation ESTABLISHED by switching from the current state SYN _ SENT to the message matching, the packet loss of the received TCP message can be processed. When the server sends a SYN message to the network equipment and the session state enters a SYN _ RCV state, if the message flag received by the network equipment is ACK, the session state enters an ESTABLISHED state, which indicates that the session state can be normally switched to the session state matched with the message. The messages described in this application are not limited to TCP messages and are merely exemplary in this application.
If the session corresponding to the session information satisfies the condition of switching from the current state to the session state matched with the message, that is, if the session corresponding to the session information satisfies the condition of switching from the current state SYN _ RCV to the session state ESTABLISHED by the message, the session state in the fast forwarding entry corresponding to the message may be updated to the ESTABLISHED state, and the received message is forwarded according to the locally recorded fast forwarding entry.
In an optional implementation manner, if no fast forwarding table entry matched with the message is recorded locally, whether the received message can enter full-flow processing can be judged according to message information analyzed from the received message, if the full-flow processing is met but no available fast forwarding table entry is available, a CPU queue corresponding to the message can be hashed according to an IP address, a protocol number and port information of the message, and the message is sent to the corresponding CPU queue for full-flow processing; and if the packet does not meet the requirement of the full-flow processing, performing packet loss processing on the message.
At step 206, a session is created.
If the message enters the full-flow processing, a new session needs to be created, and along with the establishment of the session, the corresponding fast forwarding table entry is also established, but the fast forwarding table entry does not have available service information and forwarding information and is still in an unavailable state.
And writing the message forwarding information and the service information into the fast forwarding table entry, and ensuring that each service mark is recorded in the fast forwarding table entry according to the session flow under the condition that the session state is stable.
After the service markers are recorded in the fast forwarding table entry, the unavailable markers in the fast forwarding table entry can be cleared, and the fast forwarding table entry is updated to be in an available state.
And obtaining a fast forwarding table entry according to the established session, updating the fast forwarding table entry into an available state, processing the message according to various services recorded in the available fast forwarding table entry, and forwarding the message.
And step 210, directly losing the packet.
The foregoing steps 201 and 202 are the same as steps 101 and 102 in the embodiment of fig. 1, and are not described again here.
According to the embodiment, whether a fast forwarding table item matched with the message is recorded locally or not is judged by receiving the message, when the fast forwarding table item is recorded locally, whether a session corresponding to the session information meets the condition of switching from the current state to the session state matched with the message or not is determined, and if the condition is met, the message is forwarded. According to the method and the device, the state detection function is added on the rapid forwarding process, the phenomenon that the message which is not passed by the state detection enters the whole process to be processed is reduced, the occupation of CPU resources is saved, the delay of the message forwarding time in the rapid forwarding process is further reduced, and the message forwarding efficiency is improved.
Corresponding to the foregoing embodiment of the method for processing a message, the present application further provides an embodiment of a device for processing a message. Referring to fig. 3, a block diagram of an embodiment of a message processing apparatus according to the present application includes: a receiving unit 301, a first judging unit 302, a second judging unit 303, and a first executing unit 304.
A receiving unit 301, configured to receive a message;
a first determining unit 302, configured to determine whether a fast forwarding entry matching the packet is recorded locally;
a second determining unit 303, configured to determine, when the fast forwarding entry is locally recorded and the fast forwarding entry includes session information, whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched to the packet;
a first executing unit 304, configured to forward the packet if the session corresponding to the session information meets a condition of switching from the current state to the session state matched with the packet.
In an optional example, the apparatus may further comprise (not shown in fig. 3): a third judging unit and a full-flow processing unit. Wherein the content of the first and second substances,
a third judging unit, configured to judge whether the packet can enter full-flow processing;
a full-flow processing unit, configured to enter full-flow processing if the full-flow processing can be entered, where the full-flow processing unit at least includes: and creating a session and generating a fast forwarding table item matched with the message.
In another optional example, when the session corresponding to the session information does not satisfy the condition of switching from the current state to the session state matched with the packet, the apparatus may further include (not shown in fig. 3):
and the first packet loss unit is used for performing packet loss processing on the received message.
In another optional example, when a session corresponding to session information satisfies a condition for switching from a current state to a session state matched with the packet, the apparatus further includes:
and the first updating unit is used for updating the state of the session information in the fast forwarding table entry corresponding to the message.
According to the embodiment, whether a fast forwarding table entry matched with the message is recorded locally is judged by receiving the message, when the fast forwarding table entry is recorded locally, whether a session corresponding to the session information meets the condition of switching from the current state to the session state matched with the message is determined, and if the session information meets the condition, the message is forwarded. According to the method and the device, the state detection function is added on the rapid forwarding process, the phenomenon that the message which is not passed by the state detection enters the whole process to be processed is reduced, the occupation of CPU resources is saved, the delay of message forwarding time in the rapid forwarding process is further reduced, and the message forwarding efficiency of the network equipment is improved.
Corresponding to the foregoing embodiment of the message processing method, the present application further provides an embodiment of a message processing apparatus.
Fig. 4 is a hardware structure diagram of the message processing device according to the present application. The terminal device includes: an internal bus 401, and a memory 402, a processor 403, and an external interface 404 connected through the internal bus; wherein the content of the first and second substances,
the memory 402 is configured to store a machine-readable instruction corresponding to message processing;
the processor 403 is configured to read the machine-readable instructions on the memory, and execute the instructions to implement the following operations:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, the message is forwarded.
Corresponding to the foregoing embodiment of a method for processing a packet, the present application further provides a machine-readable storage medium, including: the machine-readable storage medium having stored thereon computer instructions that, when executed, perform the following:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, the message is forwarded.
The implementation processes of the functions and actions of the modules in the apparatus, the device, and the machine-readable medium are specifically described in the implementation processes of the corresponding steps in the method, and are not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described apparatus embodiments, device embodiments, and machine-readable storage medium embodiments are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (8)
1. A method for processing a message is characterized in that the method comprises the following steps:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, forwarding the message;
when the session corresponding to the session information does not satisfy the condition of switching from the current state to the session state matched with the message, the method further comprises the following steps:
and carrying out packet loss processing on the received message.
2. The method of claim 1, wherein when the fast forwarding entry is not recorded locally, the method further comprises:
judging whether the message can enter the full-flow processing;
if yes, entering a full-flow process, wherein the full-flow process at least comprises the following steps: and creating a session and generating a fast forwarding table item matched with the message.
3. The method according to claim 1, wherein when a session corresponding to session information satisfies a condition for switching from a current state to a session state matched with the packet, the method further comprises:
and updating the state of the session information in the fast forwarding table entry corresponding to the message.
4. An apparatus for processing a packet, the apparatus comprising:
a receiving unit, configured to receive a packet;
the first judging unit is used for judging whether a fast forwarding table item matched with the message is recorded locally or not;
a second determining unit, configured to determine whether a session corresponding to the session information satisfies a condition of switching from a current state to a session state matched with the packet if the fast forwarding entry includes the session information when the fast forwarding entry is locally recorded;
the first execution unit is used for forwarding the message if the session corresponding to the session information meets the condition of switching from the current state to the session state matched with the message;
the device further comprises:
and the first packet loss unit is used for performing packet loss processing on the received message when the session corresponding to the session information does not meet the condition of switching from the current state to the session state matched with the message.
5. The apparatus of claim 4, wherein when the fast forwarding entry is not recorded locally, the apparatus further comprises:
a third judging unit, configured to judge whether the packet can enter full-flow processing;
a full-flow processing unit, configured to enter full-flow processing if the full-flow processing can be entered, where the full-flow processing unit at least includes: and creating a session and generating a fast forwarding table item matched with the message.
6. The apparatus according to claim 4, wherein when the session corresponding to the session information satisfies a condition for switching from the current state to the session state matched with the packet, the apparatus further includes:
and the first updating unit is used for updating the state of the session information in the fast forwarding table entry corresponding to the message.
7. A message processing apparatus, characterized in that the apparatus comprises: the system comprises an internal bus, a memory, a processor and an external interface which are connected through the internal bus; wherein the content of the first and second substances,
the memory is used for storing machine readable instructions corresponding to message processing;
the processor is configured to read the machine-readable instructions on the memory and execute the instructions to implement the following operations:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, forwarding the message;
and when the session corresponding to the session information does not meet the condition of switching from the current state to the session state matched with the message, performing packet loss processing on the received message.
8. A machine-readable storage medium having stored thereon computer instructions that, when executed, perform the following:
receiving a message;
judging whether a fast forwarding table item matched with the message is recorded locally or not;
when the fast forwarding table entry is locally recorded and the fast forwarding table entry contains session information, determining whether a session corresponding to the session information meets a condition of switching from a current state to a session state matched with the message;
if yes, forwarding the message;
and when the session corresponding to the session information does not meet the condition of switching from the current state to the session state matched with the message, performing packet loss processing on the received message.
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| CN110224932B (en) * | 2019-05-06 | 2021-06-15 | 烽火通信科技股份有限公司 | Method and system for rapidly forwarding data |
| CN111107536B (en) * | 2019-12-30 | 2022-07-26 | 联想(北京)有限公司 | User plane function forwarding method, device, system and storage medium |
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| CN107948076B (en) * | 2017-12-29 | 2021-08-24 | 杭州迪普科技股份有限公司 | Method and device for forwarding message |
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