CN115022251A - Method for controlling bidirectional message receiving and transmitting between information systems - Google Patents
Method for controlling bidirectional message receiving and transmitting between information systems Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/31—Flow control; Congestion control by tagging of packets, e.g. using discard eligibility [DE] bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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Abstract
The invention discloses a bidirectional message receiving and transmitting control method between information systems. The information system establishes a receiving and sending control rule table of each message aiming at each interconnected information system. When the information system sends a message to a certain destination information system, checking a receiving and sending control table, and if the rule allows the sending, immediately sending the message to the destination information system; if the transmission is forbidden, the message is immediately discarded. When the information system receives a message from a source end information system, checking a receiving and sending control table, and if the rule allows the receiving, receiving the message and distributing the message to an upper layer application; if the forwarding is allowed, the direct connection system is immediately forwarded; otherwise, the message is immediately discarded. By the bidirectional message receiving and sending control method, on one hand, the receiving and sending of the message can be accurately controlled at any time according to the actual requirement of the system, and the receiving and sending ends are bidirectionally controlled, so that the method is more reliable and safer, and has no misoperation; on the other hand, the transmission quantity of messages on a communication link can be reduced, and the processing quantity of upper-layer application messages can be reduced.
Description
Technical Field
The invention relates to a message receiving and sending control method, in particular to a bidirectional message receiving and sending control method between information systems.
Background
At present, a conventional information system does not have a capability of controlling transmission and reception of each message, and transmission and reception control of the message is built in a transmission module (generally, an information system with a predetermined functional performance is considered to have a stable transmission and reception relationship with other information systems). In many practical applications, some message receiving and sending rules need to be changed in real time, for example, when a certain information system is abnormal, a certain message is continuously sent to an external system, and at this time, if the system has the receiving and sending control capability aiming at each message, the external sending of the message is directly prohibited or the receiving end prohibits the receiving of the message, so that the abnormal message can be immediately shielded, and the stable operation of the information system is ensured.
Disclosure of Invention
The purpose of the invention is as follows: the technical problem to be solved by the present invention is to provide a method for controlling bidirectional message transmission and reception between information systems, aiming at the defects of the prior art.
In order to solve the technical problem, the invention discloses a bidirectional message receiving and transmitting control method between information systems, which comprises the following steps:
step 1, creating a receiving and sending control rule table of each message aiming at each directly connected information system; the information system comprises a receiving and sending rule configuration module and an information transmission module;
step 2, when the information system sends the message to the destination information system, checking a receiving and sending control table, if the rule allows the sending, immediately sending the message to the destination information system; if the transmission is forbidden, the message is immediately discarded;
step 3, when the information system receives the message from the source information system, checking a receiving and sending control table, if the rule allows the receiving, receiving the message and distributing the message to the upper application; checking a receiving and transmitting control table, checking each system control word except the source end system in sequence, and if the forwarding is allowed, forwarding to a directly connected system immediately; otherwise, discarding the message immediately;
step 4, when the receiving and sending rule configuration module in the information system changes the receiving and sending rules of the message, the information transmission module is immediately informed; the information transmission module reloads the message receiving and sending control rule table; and controlling the message transmission and reception according to the new message transmission and reception control rule table.
The receiving and transmitting control rule in step 1 of the invention comprises the following steps: sending T, receiving R and forwarding F;
wherein, T represents that the message is generated by the system and is allowed to be sent to other destination systems;
r represents that the message is allowed to be received from the source end system;
f indicates that the message comes from other systems except the destination system and is allowed to be forwarded to the destination system.
The method for creating the receiving and sending control rule table of each message aiming at each directly connected information system in the step 1 of the invention comprises the following steps:
using a number, namely 1 byte, to represent a message to a receiving and transmitting control rule of a certain system, namely a TRF rule;
the 0 th bit represents a sending T rule, the 1 st bit represents a receiving R rule, and the 2 nd bit represents a forwarding F rule;
for each bit, 1 represents enable and 0 represents disable;
and establishing a receiving and transmitting control rule table, wherein the row title is a message number, the column title is an information system number, and the number of the row-column intersection represents a corresponding receiving and transmitting control rule word, namely a control word.
In step 2 of the present invention, the message control method when the information system sends the message to the information system of a certain destination comprises:
and 2-1, checking the system information of the destination in the message, checking the receiving and sending control word of the message aiming at the system if the system information of the destination exists in the message, and immediately sending the message to the information system of the destination if the rule allows the sending.
Step 2-2, checking the destination system information in the message, if the destination system information is not in the message, indicating that the message is broadcasted, checking the control words of the message aiming at other systems one by one, and if the rule allows the message to be sent, immediately sending the message to the system; checking one by one until all the systems configured in the receiving and sending control rule table are processed.
And 2-3, if the conditions in the step 2-1 and the step 2-2 are not met, indicating that the message is not to be sent, and immediately discarding the message.
In step 3 of the present invention, a method for controlling a packet when an information system receives a packet from a source information system, comprises:
and 3-1, checking the receiving and sending control word of the message relative to the source end system, and receiving the message and distributing the message to upper application if the rule allows receiving.
And 3-2, checking the system information of the destination terminal indicated in the message, if the message has the system information of the destination terminal, checking that the message is over against the receiving and sending control word of the destination terminal system, and if the message is allowed to be forwarded, immediately forwarding the message to the destination terminal system.
Step 3-3, checking the destination system information indicated in the message, if no destination system information exists, indicating a broadcast message, checking control words of all messages relative to a non-source system one by one, and if forwarding is allowed, forwarding immediately; checking one by one until all the systems configured in the receiving and sending control rule table are processed.
And 3-4, if the conditions in the step 3-1, the step 3-2 and the step 3-3 are not met, the message is indicated not to be received and forwarded, and the message is immediately discarded.
Has the advantages that:
by introducing TRF (transmission, reception and forwarding) control rules, the invention can not only control the transmission of the message at the source end system aiming at each message, but also control the reception of the message at the destination end system aiming at each message; meanwhile, through the setting of the F rule, the broadcast message can be automatically forwarded to the whole network, and a forwarding relation can be established, so that the source message is forwarded to a non-direct-connection destination system through an intermediate system (the F rule is particularly suitable for information systems with an upper-level relation and a lower-level relation or mixed channel communication interconnection). The bidirectional message receiving and sending control method can accurately control the receiving and sending of the message at any time according to the actual requirements of the system, is bidirectionally controlled by the receiving and sending end, is more reliable and safe, and does not have misoperation; on the other hand, the transmission quantity of messages on a communication link can be reduced, and the processing quantity of upper-layer application messages can be effectively reduced.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic diagram of a transmission/reception control table according to the present invention.
Fig. 2 is a schematic diagram of a storage implementation of a transceiving control table provided by the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment of the invention discloses a bidirectional message receiving and transmitting control method between information systems, which can control the sending of a message at a source end system and the receiving of a message at a destination end system by introducing a TRF (sending, receiving and forwarding) control rule; meanwhile, through the setting of the F rule, the broadcast message can be automatically forwarded to the whole network, and a forwarding relation can be established, so that the source message is forwarded to a non-direct-connection destination system through an intermediate system (the F rule is particularly suitable for information systems with an upper-level relation and a lower-level relation or mixed channel communication interconnection). The bidirectional message receiving and sending control method can accurately control the receiving and sending of the message at any time according to the actual requirements of the system, is bidirectionally controlled by the receiving and sending end, is more reliable and safe, and does not have misoperation; on the other hand, the transmission quantity of the messages on the communication link can be reduced, and the processing quantity of the upper-layer application messages can be effectively reduced.
The embodiment of the invention provides a bidirectional message receiving and transmitting control method between information systems, which comprises the following steps:
step 1, establishing a receiving and sending control rule table of each message aiming at each interconnected information system;
the transceiving control rules include three types: transmission (T), reception (R), forwarding (F). T: the message is generated by the system and can be sent to other destination systems; r: the message may be received from a source end system; f: the message is from a system other than the destination system and may be forwarded to the destination system. A message transceiving control rule table is shown in fig. 1, where a row title is a message number, a column title is an information system number, a row and column intersection is a transceiving control rule of a message for a certain system, the rule is a combination of three rules of sending (T), receiving (R), and forwarding (F), and in total 8, the rules are respectively T/R/F, T/R/-, T/-/F, -/R/-, -/-/F, -/-/- (-indicates prohibition). When in use, the judgment and use of the rule are carried out for each message operation (sending, receiving and forwarding).
In specific implementation, a number (1 byte) is used for representing a TRF rule of a message aiming at a certain system, the 0 th bit represents a T rule, the 1 st bit represents an R rule, and the 2 nd bit represents an F rule; for each bit, 1 represents enable and 0 represents disable; as shown in fig. 2, the storage implementation of the transceiving control table is schematically illustrated, wherein the row header is a message number, the column header is an information system number, and the number of the intersection of the row and the column represents a transceiving control rule word, which is hereinafter referred to as a control word.
Fig. 1 corresponds to fig. 2, fig. 1 directly shows the meaning at a glance by TRF, fig. 2 belongs to the specific implementation, and T/R/F, T/R/-, T/-/F, -/R/-, -/F, -/-/-/-, respectively correspond to 0x07, 0x03,0x01,0x05,0x06,0x02,0x04,0x 0. This is expressed in binary, such as T/R/F, and in the specific implementation, the 0 th bit, the 1 st bit, and the 2 nd bit are all 1, i.e. 0b00000111, and the hexadecimal is 0x 07.
Step 2, when the information system sends out the message, check the receiving and dispatching control list, if the rule allows to send, send the message to the destination information system immediately; if the transmission is forbidden, the message is immediately discarded. Specifically, this step is broken down as follows:
step 2-1, checking the destination system in the message, if the destination system is clear in the message, checking the receiving and sending control word of the message aiming at the system, if the rule allows sending, immediately sending the message to the destination information system;
in implementation, the control word transmission rule is determined by checking the value of the first bit of the control word, specifically, by performing an "&" operation (and "operation) on the control word with respect to 0x01(0b00000001), and if the result is not 0, transmission is allowed, otherwise, transmission is prohibited.
Step 2-2, checking a destination system in the message, if the destination system is not clear in the message, indicating that the message is broadcasted, checking control words of the message aiming at other systems one by one, and if the rule allows the message to be sent, immediately sending the message to the system; checking one by one until all configured systems are processed;
step 2-3, if the condition is not satisfied, the message is indicated not to be sent, and the message is immediately discarded;
step 3, when the information system receives the message from a source end information system, checking a receiving and sending control table, if the rule allows the receiving, receiving the message and distributing the message to an upper layer application; checking a receiving and transmitting control table, checking each system control word except the source end system in sequence, and if the forwarding is allowed, forwarding to a directly connected system immediately; otherwise, discarding the message immediately; specifically, this step is broken down as follows:
step 3-1, checking the receiving and sending control word of the message relative to the source end system, if the rule allows receiving, receiving the message and distributing to the upper application;
in implementation, the control word reception rule is determined by checking the value of the second bit of the control word, specifically, by performing an "&" operation (and "operation) on the control word with respect to 0x02(0b00000010), and if the result is not 0, the reception is allowed, otherwise, the reception is prohibited.
Step 3-2, checking the destination system indicated in the message, if the message has a clear destination system, checking that the message is over against the receiving and sending control word of the destination system, and if the message is allowed to be forwarded, immediately forwarding the message to the destination system;
in implementation, the control word forwarding rule is determined by checking the value of the third bit of the control word, specifically, by performing an "&" operation (and operation) on the control word with respect to 0x04(0b00000100), if the result is not 0, then forwarding to the destination system is allowed, otherwise, forwarding is prohibited.
Step 3-3, the destination system indicated in the message indicates the broadcast message if no clear destination system exists, checks the control words of all the messages relative to the non-source system one by one, and immediately forwards the messages if the forwarding is allowed; checking one by one until all configured systems are processed;
3-4, if the condition is not satisfied, indicating that the message should not be received and forwarded, and immediately discarding the message;
and 4, if the receiving and sending rule configuration module in the information system changes the receiving and sending rules of a certain message, immediately notifying the information transmission module, and reloading the message receiving and sending control rule table by the information transmission module to perform new message receiving and sending control.
In the implementation process, the step is simple to implement, but is a visible advantage of the control method, and the control method can dynamically change the message receiving and sending control words in the program running process, thereby realizing the change of message receiving and sending rules as required, in particular the capability of shielding abnormal messages. Specifically, if the system application can normally process one external message with a frequency of 1 second, but the result is continuously sent to the system at a frequency of 100000 messages per second due to the abnormal external system, if the system continuously processes the abnormal messages, the system load will be greatly increased, which causes the system to be unable to bear or even crash, at this time, the system only needs to set the control word of the message to be prohibited from receiving (or set the control word of the message to be prohibited from sending at the abnormal source end system), the abnormal message is immediately shielded, which not only can reduce the amount of abnormal messages processed by the system, but also can reduce the load of a communication link, and effectively ensures the efficient and stable operation of the system.
The invention has proposed a two-way message receiving and dispatching control method between the information systems, through introducing TRF (sending, receiving, transmitting) control rule, can already control the sending of the message to every message in the source end system, can also control the receiving of the message to every message in the destination end system; meanwhile, through the setting of the F rule, the broadcast message can be automatically forwarded to the whole network, and a forwarding relation can be established, so that the source message is forwarded to a non-direct-connection destination system through an intermediate system (the F rule is particularly suitable for information systems with an upper-level relation and a lower-level relation or mixed channel communication interconnection). The bidirectional message receiving and sending control method can accurately control the receiving and sending of the message at any time according to the actual requirements of the system, is bidirectionally controlled by the receiving and sending end, is more reliable and safe, and does not have misoperation; on the other hand, the transmission quantity of messages on a communication link can be reduced, and the processing quantity of upper-layer application messages can be effectively reduced. It is proved by system engineering practice that the invention is a simple, efficient and reliable message transceiving control method, and for those skilled in the art, without departing from the idea of the invention, the bidirectional message transceiving control method can be further modified and decorated (for example, a transceiving control rule is established for a response message is added), and the modifications and decorations should be regarded as the protection scope of the invention. All the components not specified in the present embodiment can be realized by the prior art.
In a specific implementation, the present application provides a computer storage medium and a corresponding data processing unit, where the computer storage medium is capable of storing a computer program, and the computer program, when executed by the data processing unit, may execute the inventive content of the bi-directional messaging control method between information systems and some or all of the steps in the embodiments provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
It is clear to those skilled in the art that the technical solutions in the embodiments of the present invention can be implemented by means of a computer program and its corresponding general-purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a computer program or a software product, which may be stored in a storage medium and includes instructions for causing a device (which may be a personal computer, a server, a single-chip computer, MUU, or a network device) including a data processing unit to execute the method according to the embodiments or some parts of the embodiments of the present invention.
The present invention provides a method and a system for controlling bidirectional message transceiving between information systems, and a plurality of methods and ways for implementing the technical solution are provided, the above description is only a preferred embodiment of the present invention, it should be noted that, for those skilled in the art, a plurality of improvements and embellishments may be made without departing from the principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (10)
1. A method for controlling the bidirectional message receiving and transmitting between information systems is characterized by comprising the following steps:
step 1, creating a receiving and sending control rule table of each message aiming at each directly connected information system; the information system comprises a receiving and sending rule configuration module and an information transmission module;
step 2, when the information system sends the message to the destination information system, checking a receiving and sending control table, if the rule allows the sending, immediately sending the message to the destination information system; if the transmission is forbidden, the message is immediately discarded;
step 3, when the information system receives the message from the source information system, checking a receiving and sending control table, if the rule allows the receiving, receiving the message and distributing the message to the upper application; checking a receiving and transmitting control table, checking system control words except a source end system in sequence, and if the forwarding is allowed, forwarding to a directly connected system immediately; otherwise, discarding the message immediately;
step 4, when the receiving and sending rule configuration module in the information system changes the receiving and sending rules of the message, the information transmission module is immediately informed; the information transmission module reloads the message receiving and sending control rule table; and controlling the message transmission and reception according to the new message transmission and reception control rule table.
2. The method according to claim 1, wherein the transceiving control rule in step 1 comprises: sending T, receiving R and forwarding F;
wherein, T represents that the message is generated by the system and is allowed to be sent to other destination systems;
r represents that the message is allowed to be received from the source end system;
f indicates that the message comes from other systems except the destination system and is allowed to be forwarded to the destination system.
3. The method according to claim 2, wherein the step 1 of creating the transmission/reception control rule table of each message for each directly connected information system comprises:
using a number, namely 1 byte, to represent a message to a receiving and transmitting control rule of a certain system, namely a TRF rule;
the 0 th bit represents a sending T rule, the 1 st bit represents a receiving R rule, and the 2 nd bit represents a forwarding F rule;
for each bit, 1 represents enable and 0 represents disable;
and establishing a receiving and transmitting control rule table, wherein the row title is a message number, the column title is an information system number, and the number of the row-column intersection represents a corresponding receiving and transmitting control rule word, namely a control word.
4. The method according to claim 3, wherein in step 2, the method for controlling the message when the information system sends the message to a destination information system comprises:
and 2-1, checking the system information of the destination in the message, checking the receiving and sending control word of the message aiming at the system if the system information of the destination exists in the message, and immediately sending the message to the information system of the destination if the rule allows the sending.
5. The method according to claim 4, wherein in step 2, the method for controlling the message when the information system sends the message to the information system of a certain destination comprises:
step 2-2, checking the destination system information in the message, if the destination system information is not in the message, indicating that the message is broadcasted, checking the control words of the message aiming at other systems one by one, and if the rule allows the message to be sent, immediately sending the message to the system; checking one by one until all the systems configured in the receiving and sending control rule table are processed.
6. The method according to claim 5, wherein in step 2, the method for controlling the message when the information system sends the message to the information system of a certain destination comprises:
and 2-3, if the conditions in the step 2-1 and the step 2-2 are not met, the message is indicated not to be sent, and the message is immediately discarded.
7. The method according to claim 6, wherein in step 3, the method for controlling packets when the information system receives a packet from a source information system comprises:
and 3-1, checking the receiving and sending control word of the message relative to the source end system, and receiving the message and distributing the message to upper application if the rule allows receiving.
8. The method according to claim 7, wherein in step 3, the method for controlling packets when the information system receives a packet from a source information system comprises:
and 3-2, checking the system information of the destination terminal indicated in the message, if the message has the system information of the destination terminal, checking that the message is over against the receiving and sending control word of the destination terminal system, and if the message is allowed to be forwarded, immediately forwarding the message to the destination terminal system.
9. The method according to claim 8, wherein in step 3, the method for controlling packets when the information system receives a packet from a source information system comprises:
step 3-3, checking the destination system information indicated in the message, if no destination system information exists, indicating a broadcast message, checking control words of all messages relative to a non-source system one by one, and if forwarding is allowed, forwarding immediately; checking one by one until all the systems configured in the receiving and sending control rule table are processed.
10. The method according to claim 9, wherein in step 3, the method for controlling packets when the information system receives a packet from a source information system comprises:
and 3-4, if the conditions in the step 3-1, the step 3-2 and the step 3-3 are not met, the message is indicated not to be received and forwarded, and the message is immediately discarded.
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