WO2018086412A1 - Time delay control method, apparatus and system - Google Patents

Abstract

Embodiments of the present invention relate to the technical field of communications, and provide a time delay control method, apparatus and system, capable of improving control precision for time delay during a message transmission process. The method comprises: a control device determines a service type of a target message, the target message needing to pass through N transmission networks from a sending end to a receiving end; the control device distributes, according to the service type, a time delay indicator of each transmission network for a target message; the control device separately sends a time delay estimation command to N transmission controllers, the time delay estimation command received by a first transmission controller carrying a time delay indicator of a first transmission network and being used for instructing the first transmission controller to determine whether time delay for transmitting a target message in the first transmission network satisfies the time delay indicator of the first transmission network; and if time delay for transmitting the target message in each transmission network satisfies the time delay indicator of the transmission network, the control device separately sends a message transmission command to the N transmission controller.

Description

Delay control method, device and system

The present application claims priority to Chinese Patent Application No. 201610980824.9, entitled "A Delay Control Method, Apparatus and System" on November 8, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a delay control method, apparatus, and system.

Background technique

Delay is the time it takes for a message (or packet) to be transmitted from the sender to the receiver of a network. For a normal packet sent by the sender, it may need to go through a different radio access network (RAN), EPC (Evolved Packet Core, 4G core network), SDN (Software Defined Network). The transmission network is transmitted to the receiving end, and then the sum of the times at which the message is transmitted in each of the transmitted networks experienced can be approximated as the delay of the message.

When a different service is executed, a corresponding delay indicator is allocated for the different service, and the delay indicator is used to indicate the time required to transmit the message when the service is executed. For example, when the delay indicator of the service 1 is At 10ms, it means that the time taken to transmit the message when performing service 1 should be within 10ms.

The transmission equipment in each transmission network, such as a router, mainly transmits data based on a Best-Effort service mechanism in the QoS (Quality of Service) model. Under this best-effort service mechanism, each router acts as an independent transmission device and can receive packets sent by other routers. Then, when a router (such as router 1) receives a large number of packets, the router 1 These messages are stored in the cache queue in a certain order, that is, the time when the router 1 processes a specified message is uncontrollable. Therefore, the time it takes for the message to be transmitted from the sender to the receiver is The delay is also uncontrollable, which causes the business to fail to meet the delay metrics assigned to it during actual execution.

Summary of the invention

The embodiment of the invention provides a method, a device and a system for controlling the delay, which can improve the control precision of the delay in the process of transmitting a message, thereby reducing the situation that the delay of transmitting a message does not satisfy the delay indicator.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, an embodiment of the present invention provides a delay control method, including: a control device determining a service type of a target packet, where the target packet needs to be received from a transmitting end through N (N ≥ 1) transmission networks. Then, the control device allocates a delay indicator for each transmission network in the N transmission networks according to the service type; and further, the control device separately sets to the N transmission controllers (each transmission network) There is a transmission controller) transmitting a delay evaluation command, taking the first transmission controller in the first transmission network as an example, and the delay estimation command received by the first transmission controller carries the delay indicator of the first transmission network. The delay evaluation command is used to indicate that the first transmission controller is Whether the delay of transmitting the target packet in the first transmission network satisfies the delay indicator of the first transmission network; if the delay of transmitting the target packet in each transmission network satisfies the transmission network If the indicator is extended, the control device sends a message transmission command to the N transmission controllers, and the transmission controller that triggers the message transmission command is configured to complete the target message according to the delay indicator assigned to the transmission network. The transfer process. That is, in the delay control method provided by the embodiment of the present invention, the control device may allocate the delay indicator of the target packet in each transmission network each time, and may perform a “negotiation” manner with each transmission. The transmission controllers in the network interact to determine whether each transmission network can satisfy the assigned delay indicator, so that when each transmission network satisfies the assigned delay indicator, the control device determines the delay indicator. For the final delay indicator, in the subsequent transmission networks, the target packets can be transmitted according to the respective "negotiated" good delay indicators, and then the total delay of the target packets in the N transmission networks is transmitted. The sum of the delay indicators of the N transmission networks is not exceeded, so that the control precision of the delay in the packet transmission process is improved, and the delay of the actual transmission of the packets does not satisfy the delay indicator.

In a possible design manner, the control device allocates, according to the service type, a delay indicator of each transport network in the N transport networks for the target packet, including: A, for the first transmission in the N transport networks. a network, the control device determines, according to the service type, M processing procedures required for the transmission device to transmit the target packet in the first transmission network, M≥1; B. The control device determines each processing process in the M processing processes. The segmentation delay indicator, the delay indicator of the first transmission network is the sum of the segmentation delay indicators of each process; wherein the delay evaluation command received by the first transmission controller includes: the M The identification of the processing procedure and the segmentation delay indicator of each processing; the control device cyclically performs the above steps A and B until the delay index of each of the N transmission networks is obtained. In this way, the control device can filter out a part of the processing process that is unnecessary when the target message is transmitted according to the service type of the target packet, thereby reducing the delay of transmitting the target packet, and also processing each process. The segmentation delay indicator is granularity, and the time delay allocation of the target message in the transmission link of each transmission network is refined.

In a possible design manner, after the control device sends the delay evaluation command to the N transmission controllers, the method further includes: if the target packet is transmitted in the first transmission network, the delay is greater than the first transmission The delay indicator of the network, the control device corrects the delay indicator of the first transmission network.

In a possible design manner, after the control device sends the delay evaluation command to the N transmission controllers respectively, the method further includes: the control device receives an evaluation response sent by each transmission controller, where the evaluation response is included in each transmission. The delay required to transmit the target packet in the network; wherein, the control device corrects the delay indicator of the first transmission network, including: if the transmission of the target packet in the second transmission network requires less delay than the first And the delay indicator of the second transmission network, the control device allocates the remaining delay indicator of the second transmission network to the first transmission network, where the second transmission network is Any one of the N transmission networks except the first transmission network.

In a possible design manner, after the delay indicator of the second transmission network is assigned to the first transmission network, based on the delay indicator of the first transmission network, the method further includes: If the delay of transmitting the target packet in the transmission network still does not satisfy the delay indicator of the first transmission network, the control device sends a replacement transmission device command to the first transmission controller, where the replacement transmission device command is used to indicate the The first transmission controller reselects the transmission device that meets the delay indicator of the first transmission network to transmit the target message.

In a possible design manner, after the control device receives the evaluation response sent by each transmission controller, the method further includes: if the target message is transmitted in the first transmission network, the delay required is greater than the first transmission network a delay indicator, and the difference between the delay required to transmit the target packet in the first transmission network and the delay indicator of the first transmission network is greater than a preset threshold, and the control device sends the first transmission controller to the first transmission controller. Send a replacement transmission device command, which replaces the transmission device And causing the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target message.

In a possible design manner, after the control device sends the delay evaluation command to the N transmission controllers, the method further includes: if the target packet is transmitted in the first transmission network, the delay required is greater than the first Transmitting a delay indicator of the network, the control device sends a replacement transmission device command to the first transmission controller, where the replacement transmission device command is used to instruct the first transmission controller to reselect the delay indicator that meets the first transmission network. The transmission device transmits the target message.

In a possible design, the method further includes: determining, by the control device, the first service processing solution that the sending end sends the target packet, and the second service processing solution that the receiving end receives the target packet, where the first The service processing solution and the second service processing solution are both processing schemes above the connection layer in the OSI reference model; the control device co-arranges the first service processing solution and the second service processing solution to obtain a joint service processing solution. The execution sequence of the first service processing solution in the joint service processing solution is before the second service processing solution; the control device sends the joint service processing solution to the receiving end, and when the receiving end receives the target message, The receiving end executes the joint service processing scheme. That is to say, the transmitting end does not need to perform the first service processing scheme on the target packet, that is, the transmitting end does not need to execute the processing scheme above the connection layer in the OSI reference model, thereby avoiding that the transmitting end performs the CPU interrupt between the CPUs through the CPU interrupt. The process of data movement, and after receiving the target message at the receiving end, the receiving end uniformly executes the joint service processing solution, that is, the receiving end completes the transmitting end in the OSI reference model by the CPU interrupt at one time. The processing scheme and the processing scheme of the receiving end above the connection layer in the OSI reference model, thereby reducing the delay consumption caused by the frequent communication of the packet service between the Ethernet and the CPU through the CPU interrupt.

In a second aspect, an embodiment of the present invention provides a control device having a function of implementing the above method to control the behavior of the device. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a third aspect, an embodiment of the present invention provides a control device, including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus when the control While the device is in operation, the processor executes the computer-executable instructions stored by the memory to cause the control device to perform the delay control method of any of the first aspects.

In a fourth aspect, an embodiment of the present invention provides a delay control system, characterized in that the system includes the control device of any of the above, and N transmission controllers connected to the control device, each transmission The controller is used to manage the transmission equipment within its transmission network, N≥1.

In a fifth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the foregoing control device, which includes a program designed to execute the above aspects for a control device.

In a sixth aspect, an embodiment of the present invention provides a computer program, where the computer program includes instructions, when the computer program is executed by a computer, to enable a computer to execute the flow in the delay control method of any one of the foregoing first aspects. .

In addition, the technical effects brought by the design mode of any one of the second aspect to the sixth aspect can be referred to the technical effects brought by different design modes in the first aspect, and details are not described herein again.

These and other aspects of the invention will be more apparent from the following description of the embodiments.

DRAWINGS

1 is a schematic structural diagram of a delay control system according to an embodiment of the present invention;

2 is a schematic structural diagram of a computer device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of interaction of a delay control method according to an embodiment of the present invention;

4 is a schematic diagram of a process of processing packets of different service types in an SDN transmission network;

FIG. 5 is a schematic diagram of a service processing process of a packet according to an OSI reference model in a prior art;

FIG. 6 is a schematic flowchart diagram of a delay control method according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a service processing process of a packet according to an OSI reference model according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a control device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In addition, the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated.

Embodiments of the present invention provide a delay control method applicable to the delay control system 100 as shown in FIG. The delay control system 100 may be composed of N (N ≥ 1) transmission networks (for example, a radio access network, a 4G core network, etc.), and the N transmission networks may be any one of the packets from the transmitting end to the receiving end. Each of the transmission networks that are sequentially passed through is provided with a transmission controller 11 and a plurality of transmission devices 12 managed by the transmission controller 11 in each transmission network. Taking the SDN transmission network as an example, an SDN controller is provided with an SDN controller, and each router or switch managed by the SDN controller, and the SDN controller can control these routers or switches to transmit packets according to a certain path (ie, target packets). That is, in the SDN transmission network, the above transmission controller 11 is an SDN controller; the above transmission device 12 is a router or a switch).

Moreover, as shown in FIG. 1, the delay control system 100 provided by the embodiment of the present invention further includes a control device 13 respectively, and the transmission controller 11 in each transmission network, that is, N transmission controllers. 11 connected, the control device 13 can interact with the N transmission controllers 11, respectively, to determine a delay indicator for the transmission of the target message in each transmission network.

Specifically, based on the delay control system 100 shown in FIG. 1 , when the transmitting end needs to transmit the target packet to the receiving end, the control device 13 first determines the service type of the target packet, and further, according to the service type, The target message is assigned a delay indicator for each transport network. For example, the delay indicator assigned to the first transmission network (the first transmission network is any one of the N transmission networks) is 10 ms, that is, the time required for the transmission device 12 in the first transmission network to transmit the target packet. Not more than 10ms.

At this time, the control device sends a delay evaluation command to the transmission controller 11 in each transmission network, and each delay evaluation command carries a delay indicator assigned to the transmission network. Taking the first transmission network as an example, after receiving the delay evaluation command, the first transmission controller 11 in the first transmission network may communicate with the transmission device 12 in the first transmission network. Mutually determining whether the delay of transmitting the target message in the first transmission network satisfies the delay indicator of the first transmission network, and if yes, the first transmission controller 11 sends an evaluation that satisfies the delay indicator to the control device 13 response.

Then, if the control device 13 receives the evaluation response that meets the delay indicator sent by each of the transmission controllers 11, it indicates that the delay of transmitting the target message in each transmission network satisfies the delay indicator of the transmission network. At this time, the control device 13 can respectively send a message transmission command to the transmission controller 11 in each transmission network, and trigger the transmission controller 11 that receives the message transmission command to complete the delay indicator assigned to the transmission network in which it is located. The transmission process of the above target message.

Of course, if the first transmission controller 11 determines that the delay of transmitting the target packet in the first transmission network does not satisfy the delay indicator of the first transmission network, the control device 13 may also send the delay indicator that does not satisfy the delay indicator. Evaluating the response, at this time, the control device 13 may re-assign a new delay indicator to the first transmission network according to the delay of the transmission of the target packet by other transmission networks (described in detail in subsequent embodiments) until the transmission network is in each transmission network. The delay in transmitting the above-mentioned target message all meets the delay index of the transmission network.

That is to say, in the delay control method provided by the embodiment of the present invention, unlike the conventional method of transmitting a message using a best effort service mechanism, the control device 13 assigns a transmission target in each transmission network each time. After the delay indicator of the message, the transmission controller 11 in each transmission network can be interacted by means of "negotiation" to determine whether each transmission network can satisfy the assigned delay indicator, so that when each transmission When the network meets the assigned delay indicator, the control device 13 determines the delay indicator as the final delay indicator. Subsequently, in each transmission network, the foregoing may be transmitted according to the respective "negotiated" good delay indicators. Target message, then, the total delay of the target message transmitted in the N transmission networks does not exceed the sum of the delay indicators of the N transmission networks, thereby improving the control precision of the delay in the message transmission process and reducing The delay of actually transmitting the packet does not satisfy the delay indicator.

It can be understood that the transmitting end and the receiving end involved in the foregoing delay control system 100 may specifically be a mobile phone, a tablet computer, a notebook computer, an UMPC (Ultra-mobile Personal Computer), a netbook, a PDA ( A terminal device such as a personal digital assistant, a personal digital assistant, and the like, only the mobile phone is used as a transmitting end, and a personal computer (PC) is used as an example of the receiving end. The embodiment of the present invention does not limit this.

It should be noted that, in the example of the present invention, any one of the functional nodes or network elements involved in the foregoing delay control system 100, for example, the transmission controller 11, the transmission device 12, and the control device 13, may be composed of one physical device. The implementation may also be implemented by multiple physical devices. The multiple functional nodes in the delay control system 100 may be implemented by different physical devices, or may be implemented by the same physical device. It can be understood that any one of the function nodes in the delay control system 100 may be a logical function module in the physical device, or may be a logical function module composed of multiple physical devices.

In addition, in the embodiment of the present invention, the foregoing delay control system 100 can be applied to a future fifth generation mobile communication (English: 5rd-Generation, abbreviated: 5G) system, long term evolution (English: long term evolution, abbreviation: LTE In the communication system, it can also be applied to the evolved communication system of LTE, such as the LTE-A (long term evolution advanced) system, and can also be applied to third-generation mobile communication such as WCDMA (English: 3rd-Generation, Abbreviation: 3G) The system is medium, and the invention is not limited.

As shown in FIG. 2, the transmission controller 11, the transmission device 12 or the control device 13 of FIG. 1 can be implemented in the manner of the computer device (or system) in FIG.

FIG. 2 is a schematic diagram of a computer device according to an embodiment of the present invention. Computer device 200 includes at least one location The processor 21, the communication bus 22, the memory 23 and at least one communication interface 24.

The processor 21 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.

Communication bus 22 may include a path for communicating information between the components described above. The communication interface 24 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.

The memory 23 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions. The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this. The memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.

The memory 23 is used to store application code for executing the solution of the present invention, and is controlled by the processor 21 for execution. The processor 21 is configured to execute application code stored in the memory 23.

In a particular implementation, as an embodiment, processor 21 may include one or more CPUs, such as CPU0 and CPU1 in FIG.

In a particular implementation, as an embodiment, computer device 200 can include multiple processors, such as processor 21 and processor 28 in FIG. Each of these processors can be a single-CPU processor or a multi-core processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.

In a particular implementation, computer device 200 may also include output device 25 and input device 26 as an embodiment. Output device 25 is in communication with processor 21 and can display information in a variety of ways. For example, the output device 25 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait. Input device 26 is in communication with processor 21 and can accept user input in a variety of ways. For example, input device 26 can be a mouse, keyboard, touch screen device, or sensing device, and the like.

The computer device 200 described above can be a general purpose computer device or a special purpose computer device. In a specific implementation, the computer device 200 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet, a wireless terminal device, a communication device, an embedded device, or have FIG. A device of similar structure. Embodiments of the invention do not limit the type of computer device 200.

In the following embodiments of the present invention, in order to more clearly describe the delay control method provided by the present invention, the following is a description of the logic function module as an execution subject, and those skilled in the art can understand that the logic function module is implemented in a specific implementation. It depends on the hardware resources on the physical device it is on.

Hereinafter, based on the delay control system 100 shown in FIG. 1, an embodiment of the present invention provides a delay control method. As shown in FIG. 3, the method includes:

101. The control device determines a service type of the target packet.

The target packet needs to pass through the N (N ≥ 1) transmission networks from the transmitting end to the receiving end. For example, the target message starts from the transmitting end, and needs to pass through the RAN transmission network of the transmitting end, the EPC transmission network, and the RAN transmission network of the receiving end to reach the receiving end.

Exemplarily, the control device can use the identification method of the existing packet service type, for example, the DIP (Deep Packet Inspection) to obtain the VPN (Virtual Private Network) identifier of the target packet. Or determining the service type of the target packet according to a method such as a category of a configuration template of the virtual machine when the virtual machine is created for the target packet.

For example, the service type of the target packet may include an IP packet or a non-IP packet. For example, the service type of the target packet may include a video service packet, a voice service packet, and the like. limit.

102. The control device allocates, according to the foregoing service type, a delay indicator of each transmission network in the N transmission networks for the target packet.

In a possible implementation manner, a correspondence between each service type and a delay indicator of the N transport networks may be stored in the control device. For example, as shown in Table 1, the service type 1 and each The correspondence between the delay indicators of the transport network and the correspondence between the service type 2 and the delay indicators of the respective transport networks. Then, when it is determined that the service type of the target packet is the service type 1, the delay indicator of each transmission network of the target packet in the N transmission networks may be determined according to the correspondence shown in Table 1.

Table 1

	Transmission network 1	Transmission network 2	......	Transport network N
Business Type 1	10ms	8ms-20ms	......	20ms (±3ms)
Business Type 2	8ms	12ms-18ms	......	20ms (±2ms)

The delay indicator of any transmission network may be represented by a specific value. For example, in Table 1, the delay indicator of the service type 1 packet transmitted in the transmission network 1 is 10 ms; or the delay of the foregoing transmission network The indicator can also be represented by a range of ranges. For example, in Table 1, the delay indicator of the packet transmitting the service type 1 in the transmission network 2 is within 8ms-20ms. At this time, the control device can be in the range of 8ms-20ms. A value is selected as the delay indicator in the interval range; or, the delay index of the above transmission network can also be represented by a specific value and its error range. For example, in Table 1, the service type 1 is transmitted in the transmission network N. The delay index of the message is 20ms, and the value error is within (±3ms). Then, the control device can select a value as the delay index in the interval of 17ms-23ms.

Further, when the delay indicator of the transmission network is an interval range, the interval range may be determined according to a historical delay value of the service type packet transmitted in different transmission networks before the current message transmission process. of. For example, in the last day, the minimum historical delay value of the service type 1 packet transmitted in the transmission network 2 is 8 ms, and the maximum historical delay value is 20 ms. Therefore, it is determined that the service type is transmitted in the transmission network 2. The delay index of the message of 1 is in the range of 8ms-20ms.

In another possible implementation manner, at least one process that needs to be performed when each service type is transmitted in different transport networks may also be stored in the control device. Exemplarily, as shown in Table 2, at least one process that needs to be performed when a message of service type 1 is transmitted in each transport network, and a message of service type 2 needs to be executed when transmitted in each transport network. At least one process.

Table 2

	Transmission network 1	Transmission network 2	......	Transport network N
Business Type 1	3 processes	2 processes	......	6 processes
Business Type 2	3 processes	4 processes	......	3 processes

Then, when the time delay indicator of each transmission network is allocated for the foregoing target message, the first transmission network (the first transmission network is one of the N transmission networks), for example, the control device may first according to the target message. The service type determines the M processing procedures that need to be performed to transmit the transmission target message in the first transmission network, M≥1; and further, determines the segmentation delay indicator of each processing process in the M processing processes, then, The sum of the segmentation delay indicators of the M processes is the delay index of the first transmission network; similarly, by performing the above method cyclically, the delay index of each transmission network in the N transmission networks can be determined.

Taking the SDN transmission network as an example, the transmission device in the SDN transmission network can perform an ACL (Access Control List), an export backpressure, a queue cache, and a CAR (Committed Access Rate) when transmitting a packet. 10 processes such as configuration, congestion queue configuration, redirection, drop policy configuration, broadcast or multicast processing, re-grouping, and NAT (Network Address Translation) traversal, and the time it takes to execute each process ( That is, the segmentation delay indicator is generally fixed. However, the processing required to perform the message of each service type is generally a subset of the 10 processes, as shown in FIG. 4, for the service type 1 The packet needs to perform at least the ACL, the export backpressure, the re-grouping, and the NAT traversal process, so that the SDN transmission network can complete the transmission process of the packet, and then the delay indicator is the four processes. The sum of the segmentation delay indicators of the process, that is, T0+T1+T8+T9; for the service type 2 packet, at least the ACL and NAT traversal are required to perform the two processes. SDN transmission network to complete the transmission process of the packet, then the delay of its delay segments is the index of the two indicators and processes, i.e., T0 + T9.

In this way, the control device can filter out a part of the processing process that is unnecessary when the target message is transmitted according to the service type of the target packet, thereby reducing the delay of transmitting the target packet, and also processing each process. The segmentation delay indicator is granularity, and the time delay allocation of the target message in the transmission link of each transmission network is refined.

It should be noted that the above description is only exemplified by 10 processing procedures in the SDN transmission network. It can be understood that the processing procedures performed by the transmission equipment in different transmission networks are not the same, but the foregoing methods can be applied. And determining, according to the service type of the target packet, M processes that need to be performed to transmit the device transmission target packet in each transmission network.

The control device sends a delay evaluation command to the first transmission controller, where the delay evaluation command carries a delay indicator of the first transmission network.

103b. The control device sends a delay evaluation command to the second transmission controller, where the delay evaluation command carries a delay indicator of the second transmission network.

......

103n. The control device sends a delay evaluation command to the Nth transmission controller, where the delay evaluation command carries a delay indicator of the Nth transmission network.

After determining the delay indicator of each transmission network, in step 103 (including steps 103a-103n), the control device may use a "negotiation" mechanism to respectively send a delay evaluation command to the transmission controller in each transmission network. The delay evaluation command received by each transmission controller carries a delay indicator of the transmission network where the transmission network is located. That is It can be said that the control device can "query" whether the transmission network where each transmission controller is located can satisfy the delay indicator assigned in step 102 by sending a delay evaluation command.

Subsequently, the specific process of the above-mentioned "negotiation" mechanism will be elaborated by taking the first transmission controller in the first transmission network as an example.

After receiving the delay evaluation command, the first transmission controller determines whether the delay of transmitting the target packet in the first transmission network satisfies the delay indicator of the first transmission network.

105a. The first transmission controller sends an evaluation response to the control device, where the evaluation response includes a delay required to transmit the target message in the first transmission network.

After receiving the delay evaluation command, the first transmission controller in the first transmission network may further determine whether the delay of transmitting the target packet in the first transmission network satisfies the number assigned in step 102. A delay indicator for a transmission network.

Of course, if the M process to be performed by the transmission device transmission target message in the first transmission network and the segmentation delay indicator of each process are determined in step 102, then the specific delay estimation command is specifically The identification of the M processes can be included, as well as the segmentation delay indicator for each of the M processes.

It should be noted that the embodiment of the present invention does not limit the sequence of execution between step 104 and steps 103b-103n. After the first transmission controller receives the delay evaluation command sent by the control device in step 103a, the step may be performed. 104.

Specifically, the first transmission controller may first determine a transmission device that transmits the target packet in the first transmission network, for example, the first transmission device, and further, the first transmission controller may carry the M carried in the delay evaluation command. The identifiers of the processing processes and the segmentation delay indicators of each processing process are sent to the first transmission device, and the first transmission device evaluates whether the corresponding processing can be completed in each segmentation delay indicator according to the current load situation. process.

For example, the SDN transmission network is used as an example, and the delay evaluation command received by the SDN controller in the SDN transmission network includes the identifiers of the two processes of ACL and NAT traversal, wherein the ACL segmentation delay indicator is 1ms, the segmentation delay indicator of NAT traversal is 1ms. Then, the SDN controller can forward the foregoing delay estimation command to the router 1, and the router 1 estimates the number of packets to be processed by the ACL and the NAT traversal according to the number of packets to be processed. The delay is determined to determine whether the ACL can be completed within 1ms and the NAT traversal is completed within 1ms. If the corresponding processing procedure can be completed within each segmentation delay indicator, the router 1 can send an evaluation response to the first transmission controller that satisfies the delay indicator of the first transmission network; if not in each segmentation After the corresponding processing is completed in the extension indicator, the router 1 may send an evaluation response to the first transmission controller that does not satisfy the delay indicator of the first transmission network.

Regardless of whether the delay indicator of the first transmission network can be satisfied, the evaluation response may include the estimated delay required for transmitting the target message in the first transmission network.

For example, when the router 1 estimates that the delay of performing the ACL for the target packet is 0.8 ms, and the delay of performing the NAT traversal is 1 ms, that is, the router 1 can complete the corresponding processing process in each segmentation delay indicator; or When the router 1 estimates that the delay of performing the ACL for the target packet is 0.8 ms, and the delay of performing the NAT traversal is 1.2 ms, that is, the router 1 can complete the ACL within the segment delay indicator of 1 ms, but cannot be in the 1 ms. NAT traversal is completed within the segmentation delay indicator. At this time, the router 1 may carry the estimated delay of performing the ACL and the delay of performing the NAT traversal (that is, the delay required for transmitting the target packet in the first transmission network) to be sent to the first transmission control in the evaluation response. The subsequent evaluation response is sent by the first transmission controller to the control device.

Similarly, after receiving the delay evaluation command sent by the control device, the transmission controller in the other transmission network may also determine whether the delay of transmitting the target packet in the transmission network satisfies the present time by using the method in the foregoing step 104. The delay indicator of the transmission network, and in turn, the evaluation response is sent to the control device, that is, the following steps 105b-105n are performed:

105b. The second transmission controller sends an evaluation response to the control device.

......

105n. The Nth transmission controller sends an evaluation response to the control device.

Similarly, the embodiment of the present invention does not limit the order of execution between step 104 and steps 105b-105n.

After the control device receives the evaluation response sent by the first transmission controller, if the delay of transmitting the target packet in the first transmission network is greater than the delay indicator of the first transmission network, the control device controls the first transmission network. The delay indicator is corrected.

If the delay of transmitting the target packet in the first transmission network is greater than the delay indicator of the first transmission network, for example, when the delay of performing the NAT traversal (1.2 ms) is greater than the segmentation delay indicator of the NAT traversal (1 ms) The control device can correct the delay indicator of the first transmission network.

In a possible implementation, if the second transmission network received by the control device (the second transmission network is any one of the N transmission networks except the first transmission network), the second transmission controller reports the The delay of the processing has a margin of 0.2ms (or 0.2ms or more), and the control device can base the second transmission network on the basis of the segmentation delay indicator (1ms) of NAT traversal in the first transmission network. The remaining 0.2 ms is allocated to the first transmission network. Further, the controller may repeatedly perform the above steps 104-105 until the delay of transmitting the target message in the first transmission network satisfies the delay indicator of the first transmission network.

Of course, in the foregoing embodiment, the delay of the ACL performed by the router 1 is 0.8 ms, which is smaller than the segmentation delay indicator of the ACL (1 ms). Therefore, the control device may also allocate the remaining 0.2 ms when performing the ACL to the NAT traversal. The segmentation delay indicator, that is, the segmentation delay indicator of NAT traversal is 1 ms + 0.2 ms = 1.2 ms.

In another possible implementation manner, the evaluation response reported by the first transmission controller may not include the delay required to transmit the target message in the first transmission network. Then, in step 106, once the delay of transmitting the target message in the first transmission network is greater than the delay indicator of the first transmission network, the control device may directly send the replacement transmission device command to the first transmission controller, and then A transmission controller reselects the new transmission device, for example, router 2, and re-evaluates whether the router 2 can satisfy the delay indicator of the first transmission network until it finds a transmission device that can satisfy the delay indicator of the first transmission network. At this time, the embodiment of the present invention does not limit the sequential execution sequence between step 106 and steps 105b-105n.

In addition, it can be understood that there is no sequential execution sequence between the above step 106 and the steps 103b-103n, that is, for different transmission networks, between the control device and the transmission controller in a certain transmission network. The process of "negotiating" the transmission network's latency indicators can be independent of each other.

Of course, if the evaluation response reported by the first transmission controller is used, the delay required to transmit the target packet in the first transmission network is much larger than the delay indicator of the first transmission network, that is, the transmission destination report is transmitted in the first transmission network. The difference between the delay required by the text and the delay indicator of the first transmission network is greater than a preset threshold. For example, the delay indicator of the first transmission network is 10 ms, and the preset threshold is 5 ms, and the evaluation reported by the first transmission controller is performed. In the response, the delay required to transmit the target packet in the first transmission network is 20 ms (20 ms - 10 ms > 5 ms), then the control device does not need to correct the delay indicator of the first transmission network, but can directly A transmission controller sends a replacement transmission device command, and the first transmission controller reselects the new transmission device until a transmission device that satisfies the above delay indicator is found.

107. If the time delay indicator of the first transmission network is still smaller than the delay of transmitting the target message in the first transmission network, the control device sends a replacement transmission device command to the first transmission controller.

Specifically, if the time delay index of the first transmission network is still smaller than the delay of transmitting the target message in the first transmission network, for example, the remaining delay indicators in all the transmission networks are allocated to the first transmission. After the network, the delay indicator of the first transmission network is still smaller than the delay of transmitting the target packet in the first transmission network, indicating that the transmission device currently selected in the first transmission network cannot meet the delay indicator, then control The device may send a replacement transmission device command to the first transmission controller, and the first transmission controller reselects the new transmission device until a transmission device that can satisfy the above delay indicator is found.

At this point, the control device can "negotiate" with the first transmission controller in the first transmission network to obtain a delay indicator of the first transmission network that matches the delay of the actual transmission destination packet. Similarly, the delay indicators of other N-1 transmission networks can be "negotiated" according to the above method, and the delay index of each transmission network in the entire N transmission networks is obtained.

Subsequently, if the delay of transmitting the target packet in each transport network satisfies the delay indicator of the transport network, the control device sends a message transmission command to the N transport controllers respectively, that is, performing the following steps 108a-108n :

108a. The control device sends a message transmission command to the first transmission controller.

108b. The control device sends a message transmission command to the second transmission controller.

......

108n. The control device sends a message transmission command to the Nth transmission controller.

That is to say, when the delay index of each transmission network obtained by the final "negotiation" does not exceed the time delay of transmitting the target message in each transmission network, the control device can separately send reports to the N transmission controllers. The transmission command, the transmission controller of the received message transmission command, for example, the first transmission controller, may transmit the target message according to the finally determined delay indicator of the first transmission network, so that the transmission is performed in each transmission network. When the target packet is transmitted, the target packet can be transmitted according to the respective delay indicators, thereby improving the control precision of the delay in the packet transmission process, and reducing the delay of the actual transmission packet does not satisfy the delay indicator.

In the above steps 101-108, the relevant actions of the control device can be performed by the processor of the control device mentioned in Fig. 2 according to the software modules in the memory.

Further, at present, the transmitting end and the receiving end usually process the message according to the OSI (Open System Interconnect) reference model when processing the message, for example, Transcoding (TC), etc. Packets need to be processed at the service layer when sending and receiving.

That is to say, as shown in FIG. 5, when processing each packet, the transmitting end needs to perform physical layer, link layer, connection layer, protocol layer, transaction layer, presentation layer, and service layer respectively. The processing process is performed on the physical layer, the link layer, and the connection layer by the transmission equipment in each transmission network, and finally the packet is forwarded to the receiving end, and then the receiving end transmits the packet. The physical layer, the link layer, the connection layer, the protocol layer, the transaction layer, the presentation layer, and the service layer are processed in a total of 7 layers, and finally the data in the packet is parsed.

However, when the protocol layer, the transaction layer, the presentation layer, and the service layer process the message, the CPU (Central Processing Unit) interrupts data transfer between the Ethernet and the CPU, and the transmitting end and the receiving end. Each message needs to be processed at the protocol layer, the transaction layer, the presentation layer, and the service layer, which undoubtedly prolongs the delay in the message transmission process.

In this regard, the embodiment of the present invention provides a delay control method, while performing the above steps 102-108, such as As shown in FIG. 6, the control device can also perform the following steps 201-203.

201. The control device determines a first service processing scheme in which the sending end sends the target packet, and a second service processing solution in which the receiving end receives the target packet.

The first service processing solution is a processing scheme in which the transmitting end is above the connection layer in the OSI reference model, and the second service processing solution is a processing scheme in which the receiving end is above the connection layer in the OSI reference model.

Exemplarily, the control device may determine the first service processing solution and the second service processing solution according to the service type of the target message.

202. The control device performs a joint programming on the first service processing solution and the second service processing solution to obtain a joint service processing solution. The execution sequence of the first service processing solution in the joint service processing solution is preceded by the second service processing solution.

That is to say, in the joint service processing scheme after the joint programming, the first service processing scheme of the transmitting end should be processed first, and then the second service processing scheme of the receiving end is processed, so that the logical correctness of the target packet can be ensured.

203. The control device sends the joint service processing solution to the receiving end. After receiving the target packet, the receiving end performs the joint service processing solution by the receiving end.

After the control device sends the foregoing joint service processing solution to the receiving end, the sending end can trigger the sending end to send the target packet. However, unlike the prior art, as shown in FIG. 7, the transmitting end does not need to perform the first processing on the target packet. The service processing scheme, that is, the transmitting end does not need to execute the processing scheme above the connection layer in the OSI reference model, thereby avoiding the process in which the transmitting end performs data shifting between the Ethernet and the CPU through the CPU interrupt, and receives the target packet at the receiving end. After that, the joint end performs the joint service processing scheme uniformly, that is, the receiving end completes the processing scheme of the transmitting end above the connection layer in the OSI reference model by the CPU interrupt, and the receiving end connects the layer in the OSI reference model. The above processing scheme reduces the delay consumption caused by the frequent communication of the packet service between the Ethernet and the CPU through the CPU interrupt.

In the above steps 201-203, the relevant actions of the control device can be performed by the processor of the control device mentioned in Fig. 2 according to the software modules in the memory.

The solution provided by the embodiment of the present invention is mainly introduced from the perspective of interaction between the network elements. It can be understood that the foregoing management device and the like include hardware structures and/or software modules corresponding to each function in order to implement the above functions. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiment of the present invention may divide the function module by the control device or the like according to the above method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 8 shows a possible structural diagram of the control device involved in the above embodiment, the control device includes: a determining unit 31, a dispatching unit 32, and a transmitting unit. 33.

The determining unit 31 is configured to determine a service type of the target packet, where the target packet needs to be sent from the transmitting end to the receiving end through the N transmission networks, N≥1;

The dispatching unit 32 is configured to allocate, according to the service type, a delay indicator of each transport network in the N transport networks for the target packet;

The sending unit 33 is configured to send a delay evaluation command to the N transmission controllers respectively, where the delay evaluation command received by the first transmission controller carries a delay indicator of the first transmission network, where the delay evaluation command is used. Instructing the first transmission controller to determine whether a delay of transmitting the target packet in the first transmission network satisfies a delay indicator of the first transmission network, where the first transmission controller is the N Any one of the transmission controllers, the first transmission network being any one of the N transmission networks, each transmission network being provided with a transmission controller; and, if transmitting in each transmission network And the time delay of the target packet meets the delay indicator of the transmission network, and respectively send a message transmission command to the N transmission controllers, where the message transmission command received by the first transmission controller is used to indicate The first transmission controller transmits the target packet according to a delay indicator of the first transmission network.

Further, the dispatching unit 32 is specifically configured to: A, for the first transport network in the N transport networks, determine, according to the service type, that the transport device transmits the target in the first transport network The M processes required for the message, M≥1; B, determining the segmentation delay indicator of each process in the M processes, and the delay indicator of the first transmission network is for each process a sum of the segmentation delay indicators; wherein the delay evaluation command received by the first transmission controller includes: an identifier of the M processes and a segmentation delay indicator of each process; Steps A and B until the delay index of each of the N transport networks is obtained.

Further, as shown in FIG. 8, the control device further includes:

The correcting unit 34 is configured to: if the delay of transmitting the target packet in the first transmission network is greater than the delay indicator of the first transmission network, correct the delay indicator of the first transmission network .

Further, as shown in FIG. 8, the control device further includes:

The receiving unit 35 is configured to receive an evaluation response sent by each transmission controller, where the evaluation response includes a delay required to transmit the target message in each transmission network;

The modifying unit 34 is specifically configured to: if the delay required to transmit the target packet in the second transmission network is smaller than the delay indicator of the second transmission network, the delay indicator in the first transmission network And assigning, to the first transmission network, a remaining delay indicator of the second transmission network, where the second transmission network is any one of the N transmission networks except the first transmission network. .

Further, the sending unit 33 is further configured to: if the delay of transmitting the target packet in the first transmission network still does not satisfy the delay indicator of the first transmission network, go to the first The transmission controller sends a replacement transmission device command, where the replacement transmission device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target message.

Further, the sending unit 33 is further configured to: if a time delay required to transmit the target packet in the first transmission network is greater than a delay indicator of the first transmission network, and in the first transmission Sending, by the first transmission controller, a replacement transmission device command, where the difference between the delay required to transmit the target packet in the network and the delay indicator of the first transmission network is greater than a preset threshold, the replacement transmission And the device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target packet.

Further, the sending unit 33 is further configured to: if the delay required to transmit the target packet in the first transmission network is greater than a delay indicator of the first transmission network, prepare to the first The transmission controller sends a replacement transmission device command, where the replacement transmission device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target message.

Further, as shown in FIG. 8, the control device further includes an orchestration unit 36,

The determining unit 31 is further configured to determine a first service processing scheme in which the sending end sends the target packet, and a second service processing solution in which the receiving end receives the target packet, where the first service processing is performed. The solution and the second service processing solution are both processing schemes above the connection layer in the OSI reference model;

The orchestration unit 36 is configured to perform joint scheduling on the first service processing solution and the second service processing solution to obtain a joint service processing solution, where the first service processing solution is executed in the joint service processing solution. The order is before the second business processing plan;

The sending unit 33 is further configured to send the joint service processing scheme to the receiving end, and when the receiving end receives the target packet, the receiving end performs the joint service processing scheme.

In the present embodiment, the above control device is presented in the form of a functional unit. A "unit" herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above. Device. In a simple embodiment, a determination unit 31 in the control device is conceivable by those skilled in the art, and the dispatch unit 32 and the transmitting unit 33 can be implemented by the processor and the memory shown in FIG.

Further, the embodiment of the present application further provides a computer program, which includes instructions, when the computer program is executed by the computer, to enable the computer to execute the corresponding process of the method of the embodiment shown in FIG. 3 or FIG. 6.

Further, an embodiment of the present invention further provides a computer storage medium for storing computer software instructions used by the control device, which includes a program for executing the control device designed in FIG. 3 or FIG. 6 above.

Those skilled in the art will appreciate that in one or more examples described above, the functions described herein can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. The scope of the protection, any modifications, equivalent substitutions, improvements, etc., which are made on the basis of the technical solutions of the present invention, are included in the scope of the present invention.

Claims (18)

1. A delay control method, comprising:

   The control device determines the service type of the target packet, and the target packet needs to be sent from the transmitting end to the receiving end through the N transmission networks, N≥1;

   And the control device allocates, according to the service type, a delay indicator of each transmission network in the N transmission networks for the target packet;

   The control device sends a delay evaluation command to the N transmission controllers, and the delay evaluation command received by the first transmission controller carries a delay indicator of the first transmission network, where the delay evaluation command is used to indicate the location Determining, by the first transmission controller, whether a delay of transmitting the target packet in the first transmission network satisfies a delay indicator of the first transmission network, where the first transmission controller is the N transmissions Any one of the controllers, wherein the first transmission network is any one of the N transmission networks, and each transmission network is provided with a transmission controller;

   If the delay of transmitting the target packet in each transport network meets the delay indicator of the transport network, the control device sends a packet transmission command to the N transport controllers, respectively. The message transmission command received by the transmission controller is used to instruct the first transmission controller to transmit the target message according to the delay indicator of the first transmission network.
2. The method according to claim 1, wherein the control device allocates a delay indicator for each of the N transport networks to the target packet according to the service type, including:

   A. For the first one of the N transport networks, the control device determines, according to the service type, M processes required for the transport device to transmit the target packet in the first transport network, M≥1;

   B. The control device determines a segmentation delay indicator of each processing process in the M processes, where a delay indicator of the first transmission network is a sum of segmentation delay indicators of each process; The delay evaluation command received by the first transmission controller includes: an identifier of the M processing procedures and a segmentation delay indicator of each processing procedure;

   The control device cyclically performs the steps A and B until a delay indicator of each of the N transport networks is obtained.
3. The method according to claim 1 or 2, wherein after the control device sends the delay evaluation command to the N transmission controllers, the method further includes:

   If the delay of transmitting the target packet in the first transmission network is greater than the delay indicator of the first transmission network, the control device corrects the delay indicator of the first transmission network.
4. The method according to claim 3, further comprising: after the control device sends the delay evaluation command to the N transmission controllers, respectively:

   The control device receives an evaluation response sent by each transmission controller, the evaluation response including a delay required to transmit the target message in each transmission network;

   The control device corrects the delay indicator of the first transmission network, including:

   If the delay required to transmit the target packet in the second transmission network is smaller than the delay indicator of the second transmission network, the control device may, based on the delay indicator of the first transmission network, The remaining delay indicator of the second transmission network is assigned to the first transmission network, and the second transmission network is any one of the N transmission networks except the first transmission network.
5. The method according to claim 4, wherein after the delay indicator of the second transmission network is assigned to the first transmission network, based on the delay indicator of the first transmission network, Also includes:

   If the delay of transmitting the target packet in the first transmission network still does not satisfy the delay indication of the first transmission network And the control device sends a replacement transmission device command to the first transmission controller, where the replacement transmission device command is used to instruct the first transmission controller to reselect the delay indicator that meets the first transmission network. The transmission device transmits the target message.
6. The method according to claim 4, further comprising: after the control device receives the evaluation response sent by each transmission controller, further comprising:

   The delay required to transmit the target packet in the first transmission network is greater than the delay indicator of the first transmission network, and the delay required to transmit the target packet in the first transmission network And the control device sends a replacement transmission device command to the first transmission controller, where the difference between the delay indicator and the delay indicator of the first transmission network is greater than a preset threshold, where the replacement transmission device command is used to indicate the A transmission controller reselects a transmission device that satisfies a delay indicator of the first transmission network to transmit the target message.
7. The method according to claim 1 or 2, wherein after the control device sends the delay evaluation command to the N transmission controllers, the method further includes:

   If the delay required to transmit the target packet in the first transmission network is greater than the delay indicator of the first transmission network, the control device sends a replacement transmission device command to the first transmission controller, And the replacing the transmission device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target packet.
8. The method of any of claims 1-7, wherein the method further comprises:

   Determining, by the control device, a first service processing scheme in which the sending end sends the target packet, and a second service processing solution in which the receiving end receives the target packet, the first service processing solution and the first The second service processing scheme is a processing scheme above the connection layer in the open system interconnection OSI reference model;

   The control device performs a joint arrangement on the first service processing scheme and the second service processing scheme to obtain a joint service processing scheme, where the execution sequence of the first service processing scheme in the joint service processing scheme is Before the second business processing plan;

   The control device sends the joint service processing scheme to the receiving end, and when the receiving end receives the target packet, the receiving end performs the joint service processing scheme.
9. A control device, comprising:

   a determining unit, configured to determine a service type of the target packet, where the target packet needs to pass through the N transmission networks from the transmitting end to the receiving end, N≥1;

   a dispatching unit, configured to allocate, according to the service type, a delay indicator of each transport network in the N transport networks for the target packet;

   a sending unit, configured to send a delay evaluation command to the N transmission controllers respectively, where the delay evaluation command received by the first transmission controller carries a delay indicator of the first transmission network, where the delay evaluation command is used to indicate Determining, by the first transmission controller, whether a delay of transmitting the target packet in the first transmission network meets a delay indicator of the first transmission network, where the first transmission controller is the N a transmission controller, wherein the first transmission network is any one of the N transmission networks, and each transmission network is provided with a transmission controller; and if the transmission is performed within each transmission network If the delay of the target packet meets the delay indicator of the transmission network, the packet transmission command is sent to the N transmission controllers, and the packet transmission command received by the first transmission controller is used to indicate the location. The first transmission controller transmits the target packet according to a delay indicator of the first transmission network.
10. The control device according to claim 9, wherein

    The dispatching unit is specifically configured to: A, for the first transport network in the N transport networks, according to the service a type, determining, in the first transmission network, M processing procedures required for the transmission device to transmit the target packet, M≥1; B, determining a segmentation delay indicator of each processing process in the M processing processes The delay indicator of the first transmission network is a sum of the segmentation delay indicators of each process; wherein the delay evaluation command received by the first transmission controller includes: the M processes Identification and segmentation delay indicator for each process; the steps A and B are performed cyclically until a delay indicator for each of the N transport networks is obtained.
11. The control device according to claim 9 or 10, wherein the control device further comprises:

    And a correction unit, configured to: if the delay of transmitting the target packet in the first transmission network is greater than a delay indicator of the first transmission network, correct a delay indicator of the first transmission network.
12. The control device according to claim 11, wherein the control device further comprises a receiving unit,

    The receiving unit is configured to receive an evaluation response sent by each transmission controller, where the evaluation response includes a delay required to transmit the target message in each transmission network;

    The modifying unit is specifically configured to: if the delay required to transmit the target packet in the second transmission network is smaller than the delay indicator of the second transmission network, the delay indicator in the first transmission network And transmitting, to the first transmission network, a remaining delay indicator of the second transmission network, where the second transmission network is any one of the N transmission networks except the first transmission network.
13. The control device according to claim 12, characterized in that

    The sending unit is further configured to send, to the first transmission controller, if a delay of transmitting the target packet in the first transmission network still does not meet a delay indicator of the first transmission network And a replacement transmission device command, where the replacement transmission device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target packet.
14. The control device according to claim 12, characterized in that

    The sending unit is further configured to: if a delay required to transmit the target packet in the first transmission network is greater than a delay indicator of the first transmission network, and transmit the location in the first transmission network And sending, by the first transmission controller, a replacement transmission device command, where the difference between the required delay of the target packet and the delay indicator of the first transmission network is greater than a preset threshold, where the replacement transmission device command is used for And instructing the first transmission controller to reselect a transmission device that meets a delay indicator of the first transmission network to transmit the target packet.
15. A control device according to claim 9 or 10, characterized in that

    The sending unit is further configured to send, to the first transmission controller, a delay if a delay required to transmit the target packet in the first transmission network is greater than a delay indicator of the first transmission network And a transmission device command, the replacement transmission device command is used to instruct the first transmission controller to reselect the transmission device that meets the delay indicator of the first transmission network to transmit the target packet.
16. The control device according to any one of claims 9 to 15, wherein the control device further comprises an orchestration unit, wherein

    The determining unit is further configured to determine a first service processing scheme in which the sending end sends the target packet, and a second service processing solution in which the receiving end receives the target packet, the first service processing solution And the second service processing solution is a processing solution above the connection layer in the open system interconnection OSI reference model;

    The orchestration unit is configured to perform joint scheduling on the first service processing scheme and the second service processing scheme to obtain a joint service processing scheme, where the first service processing scheme is executed in the joint service processing scheme Before the second business processing plan;

    The sending unit is further configured to send the joint service processing solution to the receiving end, when the receiving end receives After the target message is received, the joint service processing scheme is executed by the receiving end.
17. A control device, comprising: a processor, a memory, a bus, and a communication interface;

    The memory is configured to store a computer execution instruction, the processor is coupled to the memory via the bus, and when the control device is in operation, the processor executes the computer-executed instruction stored in the memory to enable The control device performs the delay control method according to any one of claims 1-8.
18. A delay control system, characterized in that the system comprises the control device according to any one of claims 9-16, and N transmission controllers connected to the control device, each transmission control The device is used to manage the transmission device in the transmission network where the transmission controller is located, N≥1.

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