KR102513755B1 - Service transmission method, facilities and computer storage media - Google Patents

Abstract

Embodiments of the present application disclose service transmission methods, facilities, and computer storage media. Here, the method includes: dicing data of a service to be transmitted according to a preset length to obtain at least one data block; packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted; parsing each of the messages to be transmitted, and determining a transmission direction of each of the messages to be transmitted; scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate; includes

Description

Service transmission method, facilities and computer storage media

This application is filed based on a Chinese patent application with application number 201810880267.2 and an application date of August 03, 2018, and claims priority to the Chinese patent application, the entire content of which is incorporated herein by reference. included

This application relates to the field of communication technology, but is not limited to the field of communication technology, and particularly relates to service transmission methods, equipment and computer storage media.

BACKGROUND OF THE INVENTION As communication technology develops, three networks such as the Internet, a cable television network, and a telecommunication network are converged with each other to gradually form an integrated network system. In these three networks, transmission technology of the telecommunication network requires conversion from Synchronous Digital Hierarchy (SDH) technology to Ethernet technology based on packet transmission technology.

SDH technology is a circuit transmission technology, specifically, it transmits information by establishing a dedicated and exclusive circuit channel between two client ends, and its advantages are short transmission delay time, small delay jitter, and high reliability. It is high, so it is very suitable for transmission of voice service. However, if there is no information transmission between the two client ends, if the corresponding dedicated channel is not released, the dedicated circuit channel will still be monopolized by the two client ends, making it unavailable to other clients, resulting in transmission efficiency. is low However, packet transmission technology transmits information using a message format between two clients, and a specific method is to establish a virtual transmission channel between two client ends, and the two client ends send a message through the corresponding virtual channel. , the virtual channel can be built on the physical entity channel, and all client ends share the bandwidth resources of the physical entity channel. When there is no information transmission between two client ends, by sharing and using the bandwidth resources of the virtual delivery channel with other client ends, it has excellent multiplexing characteristics and secures that bandwidth is not wasted, resulting in high transmission efficiency and low transmission cost. low.

Currently, when a message is transmitted in a network having three network convergence, uncertain time delay and jitter caused by the corresponding time delay wave exist. In addition, in the process of achieving three-network convergence, when a voice service is transmitted using a packet transmission technology, the transmission quality of the voice service is deteriorated due to the above-described problems, so that high-quality transmission of the voice service cannot be realized.

Embodiments of the present application are intended to provide a service transmission method, equipment, and computer storage media.

The technical solution of the present application is implemented as follows.

In a first aspect, an embodiment of the present application provides a service transmission method, the method comprising:

obtaining at least one data block by dicing data of a service to be transmitted according to a preset length;

packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted;

parsing each of the messages to be transmitted, and determining a transmission direction of each of the messages to be transmitted;

Scheduling messages to be transmitted in the same transmission direction and processing method in the same service flow, and transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate doing; includes

In a second aspect, an embodiment of the present application provides a service transmission method, the method comprising:

depacketizing a received transport message to obtain a data block stream carried by the transport message;

obtaining a bitstream corresponding to a coding scheme of the original service data by performing reverse decoding according to a coding recovery strategy set for the data block;

restoring the original service data from the bitstream;

transmitting the raw service data to a client end; includes

In the third aspect, an embodiment of the present application provides a network equipment, wherein the network equipment includes a dicing part, a packetization part, a parsing part, a scheduling part and a first transmission part; here,

the dicing portion is configured to dice data of a service to be transmitted according to a preset length to obtain at least one data block;

the packetization unit is configured to packetize each of the data blocks according to a preset message format, obtain at least one message to be transmitted, and transmit the message to be transmitted to the parsing unit according to a set transmission rate;

the parsing portion is configured to parse each of the messages to be transmitted to determine a transmission direction of each of the messages to be transmitted;

the scheduling part is configured to schedule messages to be transmitted in the same transmission direction and in the same processing manner in the same service flow;

The first transmission part is configured to transmit the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate.

In a fourth aspect, an embodiment of the present application provides a network equipment, wherein the network equipment includes a depacketization part, a first recovery part, a second recovery part, and a second transmission part; here,

the depacketization unit is configured to depacketize a received transport message to obtain a data block stream carried by the transport message;

the first reconstruction part is configured to perform reverse decoding according to a coding recovery strategy set for the data block to obtain a bitstream corresponding to a coding scheme of the original service data;

the second restoration part is configured to restore the original service data from the bitstream;

The second transmission part is configured to transmit original service data to the client end.

In a fifth aspect, an embodiment of the present application provides a network equipment, wherein the network equipment includes a first network interface, a first memory and a first processor; Here, the first network interface is configured to receive and transmit signals in the process of transmitting and receiving information with other external network elements; The first memory is configured to store a computer program operable by the first processor; The first processor is configured to, when the computer program is run, execute the steps of the method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a network equipment, wherein the network equipment includes a second network interface, a second memory and a second processor; Here, the second network interface is configured to receive and transmit signals in the process of transmitting and receiving information with other external network elements; the second memory is configured to store a computer program operable on the second processor; The second processor is configured to execute the steps of the method according to the second aspect when the computer program is run.

In the seventh aspect, an embodiment of the present application provides a computer storage medium, wherein a service transmission program is stored in the storage medium, and when the service transmission program is operated by at least one processor, the first aspect or the second aspect Steps of the service transmission method according to aspect 2 are implemented.

Embodiments of the present application provide a service transmission method, equipment, and computer storage medium, and dicing service data to be transmitted according to a matched preset length, then parsing and transmitting according to a set transmission speed, so that the service to be transmitted is transmitted. Because it is transmitted at a stable speed in the process, the delay time is very short, the delay jitter is very small, and the transmission quality of the service is similar to that of the SDH network.

1 is a schematic diagram of a communication network architecture provided by an embodiment of the present application;
2 is a schematic flow diagram of message transmission provided in an embodiment of the present application;
3 is a flow schematic diagram of a service transmission method provided by an embodiment of the present application.
4 is a schematic flow diagram of message processing at the sending end provided in an embodiment of the present application;
5 is a schematic diagram of multiple selection provided by an embodiment of the present application;
6 is a schematic diagram of OTN frame formation provided in an embodiment of the present application.
7 is a flow schematic diagram of another service transmission method provided by an embodiment of the present application;
8 is a schematic flow diagram of message processing of a target end provided in an embodiment of the present application.
9 is a detailed flow schematic diagram of a service transmission method provided by an embodiment of the present application;
10A is a flow schematic diagram of a specific example provided by the embodiments of the present application.
10B is a flow schematic diagram of another specific example provided by the embodiments of the present application.
10C is a flowchart of another specific example provided by the embodiments of the present application.
11 is a structural schematic diagram of network equipment provided in an embodiment of the present application.
12 is a structural schematic diagram of other network equipment provided by an embodiment of the present application.
13 is a structural schematic diagram of specific hardware of network equipment provided by an embodiment of the present application;
14 is a structural schematic diagram of another network equipment provided by an embodiment of the present application.
15 is a schematic structural diagram of specific hardware of other network equipment provided by an embodiment of the present application;

Hereinafter, the technical solutions of the embodiments of the present application will be clearly and completely described by combining the drawings of the embodiments of the present application.

Referring to FIG. 1 , FIG. 1 illustrates an exemplary architecture of a communication network 100 that can be applied to the packet transmission technology provided by the embodiments of the present application, and the communication network 100 includes a plurality of client-end devices. and a plurality of network node facilities. The client end facilities are client end 1, client end 2, client end 3 and client end 4 respectively; The network node facilities include node A, node B, node C, node D, node E and node F, respectively. As shown in FIG. 1, when the information to be transmitted by client end 1 and client end 2 is aggregated, a dashed line between client end 1 and client end 2 passes through node A, node B, node C, and node D, respectively. One virtual transmission channel 1 can be established as indicated by . In the corresponding transmission channel 1, client end 1 and client end 2 are referred to as Customer Edge (CE) facilities; Node A and node D are connected to client end 1 and client end 2, respectively, so they are referred to as operator edge (PE) facilities; In the corresponding transmission channel, since Node B and Node C are only responsible for data exchange of information, they are referred to as operator (P, Provider) facilities. Similarly, when a virtual transmission channel 2 as indicated by the dotted line is established between client end 3 and client end 4, in that transmission channel 2, node A and node C may be referred to as PE facilities, and node B may be referred to as a PE facility. It can be referred to as a P facility. As can be seen from the above two transport channels, transport channel 1 and transport channel 2 share physical entity channels from node A to node B to node C. It can be understood that when there is no message transmission between client end 1 and client end 2, transmission channel 1 is in an idle state and releases bandwidth resources, at this time transmission channel 2 shares the bandwidth resources released by transmission channel 1. Therefore, the bandwidth of the transmission channel 2 is increased and the bandwidth is prevented from being wasted.

What needs to be explained is that the communication network 100 can be applied not only to Ethernet, but also to communication networks based on packet transmission technologies such as Optical Transport Network (OTN) and Flexible Ethernet (FlexE). There is, and the embodiments of the present application do not further explain this.

Taking Fig. 1 as an example, in the process of transmitting information, information is generally transmitted using a message method, and the length of each message is not determined, and is generally 64 bytes to 1518 bytes. When client end 1 does not have a message to be transmitted to client end 2, the bandwidth of transmission channel 1 is shared and used by other client ends, for example, the bandwidth of transmission channel 2 is shared and used. When client party 1 needs to transmit a message to client party 2, if transmission channel 2 is being used by client party 3 and client party 4, it waits until the transmission of client party 3 and client party 4 is completed and then transmits the transmission channel. 1 can be used. Accordingly, in the packet transmission process, since an uncertain time delay exists when transmitting a message, delay and jitter occur in message transmission.

In the case of communication facilities, Figure 2 shows the specific process of the message transmission process, as can be seen from this, after the physical inlet parses and classifies the message received, the specific information of the message, such as the MAC address of the message, IP Depending on the content such as address and priority, the transmission port of the message is determined, and according to the message exit and priority, queuing is performed as Queue 1, Queue 2, ... Queue n in the drawing, and then scheduled, physical Wait for output to exit. As can be seen from this, the scheduler calls messages from different queues according to a preset scheduling algorithm, transmits them to physical outlets, and performs transmission through the physical outlets. Since the length of each message is different, even if the scheduling algorithm ensures that the message has a certain output bandwidth, if one message is to be transmitted and output, the next message must wait until the transmission of the previous message is completed. can be transmitted, the waiting time is uncertain, and delay jitter may be caused due to the uncertainty of the delay time. Messages have different degrees of delay and jitter each time they pass through one network node facility, and the accumulated delay time and delay jitter after passing through multiple facilities become very large, so the transmission quality in the packet transmission process is poor. When high-quality voice services (for example, leased line services of large clients such as power grids, military networks, and railway networks) need to be transmitted, the quality of voice services deteriorates significantly, and the quality of these leased line services cannot be satisfied. can't

Overall, in the case of packet transmission technology, when one client end A starts to send a service message, another client end sends a message, client end A continues until the other client end sends the current message. Since the bandwidth of the virtual channel can be recovered only by waiting, the message of the client A cannot be transmitted in time. As a result, when the message is transmitted in the network converged, it is caused by an uncertain time delay and the corresponding time delay wave. The resulting jitter will be present. When a message transmitted between a pair of client ends has to pass through many intermediate node facilities in the network, different degrees of delay and jitter occur each time the message passes through the intermediate node facilities in a network. After passing through a plurality of intermediate node facilities, delay and jitter accumulate, resulting in a significant drop in service transmission quality. Therefore, in the process of convergence of three networks, when a voice service is transmitted using the packet transmission technology, the transmission quality of the voice service is deteriorated due to the above-mentioned problems, making it impossible to realize high-quality transmission of the voice service.

In an embodiment of the present application, the following technical solution is provided based on the network architecture shown in FIG. 1 .

Referring to FIG. 3, FIG. 3 illustrates a service transmission method provided in an embodiment of the present application, and the method can be applied to a transmitter PE facility that performs service transmission, and the method includes:

Dicing data of a service to be transmitted according to a preset length to obtain at least one data block (S301);

packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted (S302);

parsing each of the messages to be transmitted, and determining a transmission direction of each of the messages to be transmitted (S303);

scheduling messages to be transmitted in the same transmission direction and processing method in the same service flow, and transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate (S304); can include

What should be explained about the technical solution shown in FIG. 3 is that the processing method may indicate a process in which data of a service to be transmitted is processed according to steps S301 to S303. As you know, the data of the service to be transmitted is diced according to the matched preset length, then parsed and transmitted according to the set transmission speed, and the network interface or time slot of the network interface for transmission is exclusive, so the service to be transmitted is transmitted during the transmission process. Because it is transmitted at a stable speed, the delay time is very short, the delay jitter is very small, and the transmission quality of the service is similar to that of the SDH network.

In the case of the technical solution shown in FIG. 3, in a possible implementation manner, the data of the service to be transmitted includes a bitstream received through a physical interface and/or message data received through a user interface.

In the case of the implementation method, preferably, in response to the case where the data of the service to be transmitted is a bitstream received through a physical interface, the data of the service to be transmitted is diced according to a preset length to obtain at least one data block. The above step of obtaining,

dicing the bitstream received through the physical interface according to the preset length to obtain at least one data block;

or, coding the bitstream received through the physical interface according to a set coding strategy and then dicing the coded bitstream according to the preset length to obtain at least one data block; includes

In the case of the implementation method, preferably, in response to the case where the data of the service to be transmitted is message data received through the user interface, at least one data block is obtained by dicing the data of the service to be transmitted according to a preset length. The above step of obtaining,

coding the message data according to a set coding strategy;

adjusting a transmission rate of coded message data and buffering the coded message data;

dicing the buffered coded message data according to the preset length to obtain at least one data block; includes

What needs to be explained is that, taking transmission channel 1 shown in FIG. 1 as an example, if client end 1 is configured to send a service to be transmitted to client end 2, and the service can be a dedicated line service requiring transmission quality assurance, the node The client interface between A and client terminal 1 may be a physical interface or a user interface. If the client interface is a physical interface, the client signal and bitstream information may be detected on the physical interface, and the client bitstream may be sliced with a fixed length. For example, if the client interface is a 1G Ethernet interface, the physical interface of the client uses 8b/10b coding (ie, indicating a transition from 8 bits long to 10 bits long) at the PCS layer, and the physical coding What is to be detected in the sublayer (Physical Coding Sublayer (PCS)) is a bitstream after performing 10b coding, and after slicing the bitstream into fixed-length information blocks, it is packetized into an Ethernet message. When the client interface is an Ethernet interface of 10G or 40G, the PCS layer coding format uses 64b/66b coding (i.e., converts from 64-bit length to 66-bit length), and based on PCS detection, the coding It is a 66-bit long block stream, and after slicing to a fixed length according to the 66-bit block stream, it is packetized as an Ethernet message.

When the client interface is a user interface, what is received is message data, such as an Ethernet message, first coding the Ethernet message (at this time, several coding schemes can be used, 64b/66b coding has relatively high efficiency and speed Since the adjustment is convenient, a 64b/66b coding scheme can be used, and the embodiments of the present application all illustrate 64b/66b, but this does not mean excluding the possibility of using other coding schemes), and the coded 66 Buffers the bit block stream and adjusts the rate when buffering. When the buffer depth moves in the direction of being quickly empty, an idle idle block (i.e., a 66-bit long control block used to indicate that this information block is one idle information block) is inserted into the 66-bit blockstream. do; When the buffer depth moves in the direction of being quickly full, we ensure that the buffer does not overflow by deleting idle blocks or other blocks of information from the 66-bit blockstream. A 66-bit long block stream is read from the buffer, sliced into a fixed length, and then packetized into an Ethernet message.

It should be noted that the corresponding implementation manner corresponds to the case where the coded bitstream or the coded message data is a 66-bit stream, the preset length is an integer multiple of 66 bits; or,

Corresponding to the case where the coded bitstream or the coded message data is a 65-bit stream, the preset length is an integer multiple of 65 bits; or,

Corresponding to the case where the coded bitstream or the coded message data is a 10-bit stream, the preset length is an integer multiple of 10 bits.

In the case of the technical scheme shown in FIG. 3, in a possible implementation manner, the step of packetizing the data block according to a preset message format to obtain a message to be transmitted,

and packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to transmit.

In the case of the implementation method, preferably, the step of packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to be transmitted,

Packetizing a protocol label of Multi-Protocol Label Switching (MPLS) of each data block into the Ethernet message to be transmitted; Here, the MPLS protocol label of the data block includes at least one of a pseudo line label, a tunnel label, and a pseudo line control word.

In the case of the implementation method, preferably, the step of packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to be transmitted,

packetizing the accompanying information of each data block into the Ethernet message to be transmitted; Here, the attached information of the data block includes at least one of a serial number, clock information, and a time stamp value.

It should be noted that the present embodiment may be packetized using other message formats, and here, only the Ethernet message format will be described. In the process of packetizing according to the Ethernet message format, about 30 bytes (source MAC address of 6 bytes, destination MAC byte of 6 bytes, message type of 2 bytes, pseudo circuit label of 4 bytes, tunnel label of 4 bytes) , 4-byte control word, 4-byte Cyclic Redundancy Check (CRC). As shown in Table 1, taking 65-bit coding as an example, the structure of an Ethernet message is as follows.

destination address source address type label tunnel label pseudo line label pseudo line control word message content CRC check 6 bytes 6 bytes 2 bytes 4 bytes 4 bytes 4 bytes 260byte=32*65bit 4 bytes

In Table 1, message scheduling switching is implemented using MPLS label switching technology in order to increase message parsing speed and quickly determine message delivery channels. A label value is added to the message, and the label value may include fields such as tunnel label, pseudo line label, and pseudo line control word. The message content portion is used to carry a fixed length of a diced block, Table 1 is diced on a 65-bit block stream, the length of the message content portion is 32 65-bit length, i.e. 260 bytes ( That is, 1 byte equals 8 bits). After packetization, Ethernet messages are converged and output according to a fixed rate. In the MPLS label switching technology, since tunnel labels and pseudo circuit labels are packetized in Ethernet messages, messages can be parsed using label values instead of parsing using information such as MAC addresses and IP addresses. The processing speed can be increased by accelerating the table look-up speed. Since the label value can determine which client a message belongs to and which channel it is transmitted through, when dicing and packetizing the contents of message data, one or two layers of labels, i.e. tunnel, are involved in the packetization process of a message. Labels and pseudo line labels can be added. According to the MPLS protocol, the pseudo-line label represents the properties of the client, the tunnel label represents the transmission path of the client, and the tunnel label represents the different clients with the same transmission path. The transmission path of each service flow is determined through the label value, and an independent network interface or an independent time slot of the network interface is reserved for a corresponding client at each node equipment on the transmission path.

It should be noted that the pseudo-line control word may include a serial number, clock information, time stamp value, etc., and is used to monitor information such as message loss, client service clock recovery, delay time, and the like. The larger the slicing length, the larger the content length of the diced block carried by the message, and the higher the packetization efficiency. Since the length of the message is long, if the messages of the two service flows are converged in the same direction, if the scheduling time is not out of sync, when the two service flows arrive at the same time, they must be output alternately, and if one service is output first , the other service waits for output. The longer the message, the longer the subsequent service flow has to wait. The shorter the length of the diced block, the shorter the content length of the diced block carried by the message, and the lower the packetization efficiency. However, when two service flow messages are converged in the same direction at the same time, the waiting time of messages waiting for output is shortened. Taking 64b/66b coding as an example, when decoding a 64b/66b coded service flow, it is necessary to find a 66b block length boundary. Since the process of finding a 66b block boundary takes a very long time, when packetizing a message, a 66b block In order to omit the process of finding the boundary, the fixed length of the diced block may be set to an integer multiple of 66b. Thus, you can slice according to 66-bit blocks, all information bits in a diced block are complete 66-bit blocks, and the first bit of a diced block is the first bit of the first 66-bit block, so 64/66b Skip the task of finding 66-bit block boundaries when performing decoding. Similarly, when dicing on a 65-bit blockstream, the length of the diced block can be an integer multiple of 65 bits; When dicing on a 10-bit blockstream, the length of the diced block may be an integer multiple of 10 bits.

For Ethernet interfaces of 10M, 100M, and 1G, the physical PHY layer uses coding formats such as 4b/5b and 8b/10b. When the physical PHY layer uses 8b/10b coding, the 8-bit length is changed to 10-bit length to transmit special function information, and the bandwidth must be increased by an additional 25% when transmitting, that is, 10M service flow is 12.5M transmission Bandwidth is required, and the utilization rate of the bandwidth of the transmission channel is only 80%. When slicing on coded 10 bits, if the packetization efficiency of a message is 90%, the utilization rate of bandwidth is only 72%. 10b coding is recoded to convert eight 10b coding blocks into one 65-bit long coding block (refer to G.7041/Y.1303 standard 2005 version 8.1.1 section 8.1.1 for the specific conversion process), By converting eight 10b-coded data streams into one 65-bit block stream and dicing on the 65-bit block stream, the maximum message carrying efficiency can be increased from 80% to 98.46%. In the case of dicing on a 65-bit block stream, the length of the diced block can be set to an integer multiple of the 65-bit length in order to omit the task of finding the boundary of the 65-bit block when decoding. Therefore, since all information bits in a diced block are complete 65-bit blocks, and the first bit of a diced block is just the first bit of the first 65-bit blocks, when performing 65-b block decoding, the boundary of the 65-b block is ignored. Skip the search task. In the implementation process, since a 65-bit block may be recoded into a 66-bit block, the bitstream before conversion is a 66-bit bitstream, which corresponds to the PCS layer coding length of the 10G and 40G interfaces. When the physical layer uses 4b/5b coding, dicing can be performed on a directly coded 5-bit long block stream, and the length of the diced block is an integer multiple of 5 bits; Two 5-bit long code blocks are converted into one 10-bit long code block, and according to the 8b/10b to 65b conversion rule, eight 10b coded data blocks are converted into one 65-bit block, 65 bits Slicing on the blockstream.

The technical solution shown in Fig. 3 is to set up a scheduling part in the PE equipment of the sender end of service transmission, and transmit the message to be transmitted to the scheduling part according to the set transmission rate, and the transmission rate must ensure the client information bandwidth requirements. Messages to be transmitted after being packetized are always transmitted at a fixed rate, regardless of whether the client service is in an overload state or a light load state. If the service is in full flow, the message to be sent carries a large amount of client-useful information; When the client service is under load, some of the messages to be sent are client useful information and some are idle information. By sending the message to be transmitted at a constant speed, it is ensured that the speed of the client's transport channel is always unchanged, no matter how the effective information of the client's service changes, the speed of the transport channel is always constant and does not change, and the client's effective service bandwidth and other services on the network not affected by speed

In the technical solution shown in FIG. 3, the step of parsing the message to be transmitted and determining the transmission direction of the message to be transmitted includes performing label parsing on all transmission messages provided by the client interface, and It may be to determine the transmission channel.

In the case of the technical scheme shown in FIG. 3, in a possible implementation manner, messages to be transmitted with the same transmission direction and the same processing method are scheduled in the same service flow, and the service flow is assigned to an exclusive network interface or a network interface according to a set transmission rate. The step of transmitting in an exclusive time slot comprises:

scheduling messages to be transmitted in the same transmission direction and in the same processing method in the same service flow according to a polling scheduling scheme;

transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate; can include

What should be explained about this embodiment is that when the transmission rate is stable, the packet length is fixed, and the dedicated line service in the same transmission direction participates in scheduling, the work rate of the scheduling part is all service flows participating in scheduling. can be greater than or equal to the total speed of , because the network interface (or the time slot of the network interface) that schedules the output is exclusive, the output speed is stable, in a stable working state, the leased line service flow is stable in the network transmission path Because it is transmitted at high speed, the delay time is very short, the delay jitter is very small, and the transmission quality of the service is similar to that of the SDH network.

In addition, the above step of optionally scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate,

When only one service flow among a plurality of service flows is scheduled and can be output, a service flow that can be scheduled and output is scheduled using a multi-selection method, and is transmitted to an exclusive network interface or an exclusive time slot of the network interface according to the set transmission rate. It includes sending.

What needs to be explained is that only one service flow out of all messages can be sent to the client interface, and multiple selection can be used to replace polling scheduling if there are no multiple service flows to be fused into one service flow. there is.

In this embodiment, the scheme is applied to a PE equipment as a transmitting end, and an interface on one side of the PE equipment is a U-side interface, which is a client interface for receiving client services; The other side is the N-side interface and is connected to the network interface. The client service enters the network system from the PE facility, passes through a plurality of facilities through the established network channel, and is then transmitted to the destination. However, in the overall network architecture, there is a very high possibility that a PE facility as a transmitting end is also used as a P facility for other transmission channels at the same time, that is, it only transmits a service from one network interface to another network interface. Therefore, when a PE facility as a transmitting end is also used as a P facility for other transmission channels, the above solution in this embodiment is:

After receiving at least one physical signal from the exclusive network interface or exclusive time slot of the network interface, respectively recovering each said physical signal into message data;

parsing message data corresponding to each of the physical signals to determine a transmission direction of at least one message data;

scheduling message data having the same transmission direction and processing method into the same service flow, mapping the service flow through the service, and transmitting the message data through an exclusive network interface or an exclusive time slot of the network interface; may further include.

In other words, under normal circumstances, the PE equipment of the sending end also plays the role of the P equipment of other transmission channels at the same time. After scheduling and convergence, one service flow is formed and transmitted to the network interface, and the message transmitted to the network interface is mapped through the service and transmitted through the network physical interface, which is shown by a solid line in FIG. same as the route After scheduling and convergence, messages sent to the client interface are sent to the client interface after forming one service flow, which is the same as the route shown by the dotted line in FIG. 4 . Since the client service has a fixed length and is transmitted at a constant speed after packetization, the speed of all leased line services is constant and does not change, and scheduling and output of all leased line services in the same direction are performed, and the work speed of the scheduling part is Greater than or equal to the aggregate rate of all input service flows. Therefore, the entered service flow is scheduled immediately upon entering the scheduling part, and to be specific, the scheduling part can satisfy the demand simply by using a simple alternating scheduler.

As for the message transmitted to the client interface, as shown in FIG. 5, only one service flow of messages provided by the network interface and messages provided by all client interfaces is transmitted to the client interface, and is converged into one service flow. When a plurality of service flows do not exist, a scheduler can be replaced by using a multiplexer, and one service flow is selected from among the multiple service flows and transmitted to the client interface.

In the above solution, the network interface may be a normal Ethernet interface, and may also be a FlexE interface or an OTN interface. In the case of an Ethernet interface, the entire network interface corresponds to the case where there is only one time slot. In the case of a FlexE interface or OTN interface, there are many time slots on the network interface. If the network interface is an ordinary Ethernet interface, the network interface is required to transmit only the leased line service, the network interface is proprietary, and does not transmit other non-leased line client services, so when the leased line service is transmitted, other It is ensured not to be affected by the uncertainty of the service speed and the uncertainty of the packet length.

If the network interface is a FlexE interface, the service flow after scheduling and convergence is transmitted to the FlexE network logic interface, mapped to a FlexE time slot in the form of a flexE client, and transmitted. In the FlexE interface, the entire FlexE channel is divided into n*20 time slot slices, the length of each time slot slice is 66 bits, and the corresponding bandwidth is 5G (bits/second). Each FlexE client is bearer by a different time slot, and is strictly physically isolated from each other and does not affect each other, so that each FlexE client transmits at a constant rate.

When the network interface is an OTN interface, as shown in FIG. 6, the transmitted service flow after convergence is transmitted to the OTN network logical interface, and the OTN physical interface client is an optical channel payload unit (OPU) , ODU is packetized into an Optical Channel Data Unit (ODU), one ODU is one time slot, and is finally processed and transmitted as an OTN frame service. Different ODUs are isolated from each other, so the transmission speed is not affected.

According to the service transmission method provided in this embodiment, the transmission speed of the dedicated line service is stable, the packet length is fixed, and the network interface (or network interface where the leased line service in the same direction participates in scheduling to schedule output) time slot) is monopolized, so the output speed is stable. Therefore, in a stable working state, the dedicated line service flow is transmitted at a stable speed on the network transmission path, so the delay time is very short and the delay jitter is very small, and the transmission quality of the service is similar to that of the SDH network.

Referring to FIG. 7, FIG. 7 illustrates a service transmission method provided in an embodiment of the present application, and the method can be applied to a receiving end PE facility that performs service transmission. The method includes:

depacketizing the received transport message to obtain a data block stream carried by the transport message (S701);

Obtaining a bitstream corresponding to the coding method of the original service data by performing reverse decoding according to a coding recovery strategy set for the data block (S702);

restoring the original service data from the bitstream (S703);

Transmitting the raw service data to a client end (S704); can include

The description of the technical solution of this embodiment is that after receiving a transmission message, referring to FIG. 8, through depacketization, a packetization part including fields such as message destination address, source address, label, CRC check, etc. After stripping the content, extracting the slicing part carried by the message, recovering and decoding to obtain a bit block codestream, and recovering and outputting the original client service from the codestream block. For example, if the client interface is a 66-bit block stream, the extracted 66-bit block stream is transmitted to the physical layer interface to perform transmission through the physical layer interface; When the client interface is an 8b/10 coding code stream and is converted to 65b coding through 8b/10 coding, after extracting the 65b code block stream, first restores and decodes the 65b code block into a 10b code block, and converts the 10b code block into a 10b code block. It is transmitted through the physical layer interface, and transmission is performed through the physical layer interface.

Referring to FIG. 9, FIG. 9 illustrates a process of a service transmission method provided in an embodiment of the present application, and the process includes two PE facilities in the network architecture shown in FIG. 1, that is, a transmitter PE facility A and a destination PE. It can be applied to Facility B, and the process may include the following steps.

Step S901: Device A dices the data of the service to be transmitted according to a preset length to obtain at least one block of data;

Step S902: Equipment A packetizes each of the data blocks according to a preset message format to obtain at least one message to be transmitted;

Step S903: Equipment A parses each of the messages to be transmitted, and determines the transmission direction of each of the messages to be transmitted;

Step S904: Equipment A schedules messages to be transmitted in the same transmission direction and processing method in the same service flow, and transmits the service flow through an exclusive network interface or an exclusive time slot of the network interface according to the set transmission rate.

It should be explained that the above steps (S901) to (S904) are processes in which the transmitting end PE equipment A transmits the leased line service. It is not repeated here.

Step S905: Equipment B depacketizes the transmitted message to obtain a data block stream carried by the transmitted message;

Step S906: Equipment B performs reverse decoding on the data block according to the set decoding strategy, to obtain a bitstream corresponding to the coding scheme of the original service data;

Step S907: Equipment B restores the original service data from the bitstream;

Step S908: Equipment B sends the original service data to the client end.

It should be explained that the above steps (S905) to (S908) are processes for the destination PE equipment B to receive the leased line service. , which will not be repeated here.

With respect to the process shown in FIG. 9, the present embodiment will explain a specific implementation process of the process shown in FIG. 9 through specific examples as follows. It should be noted that the number of specific examples does not indicate a priority relationship or a precedence relationship between examples, and is only for distinguishing different examples.

Specific example 1

Referring to FIG. 10A, taking FlexE as an example, suppose that there are four 1G client services that perform transcoding, respectively, converting from 8b/10b to 65b on the bit code stream of the PCS layer in the PE equipment of the transmitting end. Next, 65 Each bit-length code block is sliced, but sliced with a fixed length, each packetized into an Ethernet message including an MPLS label, and then transmitted to the polling scheduling part at constant speed. Through label parsing, messages with the same direction and same processing method are scheduled and fused into one service flow, mapped to FlexE time slots (these time slots are exclusive time slots) in the form of a FlexE client, and then FlexE The interface completes the FlexE service processing, and transmits after performing, for example, 64/66 coding, time slot mapping, and FlexE framing.

A P facility in the network can extract the service of the corresponding time slot from the FlexE interface, intersect directly on the FlexE time slot, and transmit it to the time slot of another FlexE interface, as indicated by the dotted line at the P facility. and; It may extract the client service from the time slot, restore the client service, schedule it to the corresponding network interface through the scheduler, code the message and map it to the corresponding FlexE time slot, and send it through the FlexE interface, which It is as indicated by the solid line in the P facility.

After recovering the message service from the time slot of the FlexE interface, the destination PE equipment sends it to the corresponding physical interface through scheduling, and recovers the bitstream of the client service through depacketization and bit code block recovery to the client. transmit Four 1G-speed clients can transmit through one FlexE time slot, as the total speed after slicing and packetization approaches 5G speed.

specific example 2

Referring to FIG. 10B, taking OTN as an example, it is set that there are two 1G client services that switch from 8b/10b to 65b code blocks on the bit/code stream of the PCS layer in the transmitting end PE equipment, and then 65-bit length Each of the code blocks is sliced, sliced with a fixed length, packetized into an Ethernet message including an MPLS label, and then transmitted to the polling scheduling part at a constant rate. Through label parsing, messages with the same direction are scheduled and converged into one service flow, processed in the OTN interface in an OTN client manner, and transmitted after processing such as OPU mapping, ODU packetization, and OUT framing. do.

A P facility in the network can extract the ODU service from the OTN interface, cross it directly on the ODU, and then send it to the OUT of another OTN interface, as indicated by the dotted line at the P facility. Extract the content of the OPU from the ODU, restore the client service, schedule to the corresponding network interface through the scheduler, map the message to the OPU and packetize it into the ODU, perform the next OUT framing, and then through the OTN interface It can also be transmitted, as indicated by a solid line in P facility.

The destination PE equipment extracts the ODU service from the OTN interface, extracts the OPU, recovers the message service, and sends it to the corresponding physical interface through scheduling, and through depacketization and bit code block recovery, the client service The bitstream is restored and sent to the client. Two 1G-speed clients can transmit through one ODU because the total speed after slicing and packetization approaches 2.5G speed.

specific example 3

Referring to FIG. 10C, taking a typical Ethernet as an example, it is set that there are 10M, 100M, and 1G client services that are converted from 8b/10b to 65b code blocks on the bit code stream of the PCS layer in the transmitting end PE equipment, respectively. , each 65-bit long code block is sliced with a fixed length, packetized into an Ethernet message including the next MPLS label, and transmitted to the polling scheduling part at constant speed. Through label parsing, messages with the same direction and same processing method are scheduled, merged into one service flow, and transmitted through a proprietary Ethernet interface. It should be noted that the Ethernet interface carries only one service flow, so it does not share the same interface as other service flows.

A P facility in the network retrieves the client service from the Ethernet interface, schedules it to the corresponding network interface through the scheduler, and transmits through the Ethernet interface.

The destination PE facility extracts the message from the Ethernet interface, recovers the client service bitstream through depacketization and bitcodeblock recovery, and sends it to the client. The three 10M, 100M, and 1G speed clients share one transmission channel and do not affect each other, so all can perform high-quality transmission and are not affected by the actual service speed, message length, or network conditions.

As is known from the description of the above three specific examples, the service transmission method provided in the embodiment of the present application allows the dedicated line service flow to be transmitted at a stable speed in the network transmission path, so the delay time is very short, The delay jitter is very small, and the transmission quality of the service is similar to that of the SDH network.

Referring to FIG. 11, FIG. 11 shows the configuration of a network facility 110 provided in an embodiment of the present application, and the corresponding network facility 110 includes a dicing part 1101, a packetization part 1102, and a parsing part. comprising a portion 1103, a scheduling portion 1104 and a first transmission portion 1105, wherein:

the dicing portion 1101 is configured to dice data of a service to be transmitted according to a preset length to obtain at least one data block;

The packetization unit 1102 packetizes each of the data blocks according to a preset message format, obtains at least one message to be transmitted, and transmits the message to the parsing unit according to a set transmission rate. is;

the parsing portion 1103 is configured to parse each of the messages to be transmitted to determine a transmission direction of each of the messages to be transmitted;

the scheduling section 1104 is configured to schedule messages to be transmitted in the same transmission direction and in the same processing manner in the same service flow;

The first transmission portion 1105 is configured to transmit the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate.

In the above technical solution, corresponding to the case where the data of the service to be transmitted is a bitstream received through a physical interface, the dicing part 1101,

dicing the bitstream received through the physical interface according to the preset length to obtain at least one data block;

or, after coding a bitstream received through the physical interface according to a set coding strategy, dicing the coded bitstream according to the preset length to obtain at least one data block.

In the technical solution, corresponding to the case where the data of the service to be transmitted is message data received through a user interface, the dicing portion 1101,

coding the message data according to a set coding strategy;

adjusting the transmission rate of coded message data and buffering the coded message data;

and dicing the buffered coded message data according to the preset length to obtain at least one data block.

In the above technical solution, corresponding to the case where the coded bitstream or the coded message data is a 66-bit stream, the preset length is an integer multiple of 66 bits; or,

Corresponding to the case where the coded bitstream or the coded message data is a 65-bit stream, the preset length is an integer multiple of 65 bits; or,

Corresponding to the case where the coded bitstream or the coded message data is a 10-bit stream, the preset length is an integer multiple of 10 bits.

In the above technical solution, the packetization part 1102,

and packetize each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to transmit.

In the above technical solution, the packetization part 1102,

configured to packetize a protocol label of multi-protocol label switching (MPLS) of each data block into the Ethernet message to be transmitted; Here, the MPLS protocol label of the data block includes at least one of a pseudo line label, a tunnel label, and a pseudo line control word.

In the above technical solution, the packetization part 1102,

configured to packetize the accompanying information of each data block into the Ethernet message to be transmitted; Here, the attached information of the data block includes at least one of a serial number, clock information, and a time stamp value.

In the technical solution, the scheduling part 1104,

According to the polling scheduling method, messages to be transmitted with the same transmission direction and the same processing method are scheduled in the same service flow;

and transmit the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate.

In the technical solution, the scheduling part 1104,

When only one service flow among a plurality of service flows is scheduled and can be output, a service flow that can be scheduled and output is scheduled using a multi-selection method, and is transmitted to an exclusive network interface or an exclusive time slot of the network interface according to the set transmission rate. configured to transmit.

In the above technical solution, the network equipment 110 further includes a recovery part 1106, wherein the recovery part 1106 receives at least one physical signal from an exclusive network interface or an exclusive time slot of the network interface, respectively. configured to restore the physical signals of each to message data;

the parsing portion 1103 is further configured to parse message data corresponding to each of the physical signals to determine a transmission direction of at least one of the message data;

The scheduling unit 1104 schedules message data in the same transmission direction and processing method in the same service flow, maps the service flow through the service, and transmits it through an exclusive network interface or an exclusive time slot of the network interface. It is further configured to

It should be understood that in this embodiment, "part" may be a part circuit, part processor, part program or software, etc., of course, may be a unit, may be a module, or may be non-modular.

Further, each composition part in this embodiment may be integrated into one processing unit, each unit may physically exist separately, or two or more units may be integrated into one unit. The integrated unit may not only be implemented in the form of hardware, but also may be implemented in the form of a software function module.

When the integrated unit is implemented in the form of a software function module and sold as a separate product or not used, it may be stored in a single computer readable storage medium. Based on this understanding, the technical solution substantially provided by the embodiments of the present invention or the part contributing to the prior art, or the whole or part of the technical solution may be implemented in the form of a software product, and the computer software product It is stored in one storage medium and includes a plurality of instructions that cause one computer equipment (personal computer, server, network equipment, etc.) or processor to execute all or part of the steps of the method according to the present embodiment. . The aforementioned storage medium includes various media capable of storing program codes such as a U disk, a mobile hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk. .

Accordingly, the present embodiment provides a computer storage medium, in which a service transmission program is stored, and when the service transmission program is operated by at least one processor, the service transmission method according to the first embodiment steps will be implemented.

Based on the network equipment 110 and the computer storage medium, referring to FIG. 13, FIG. 13 shows a specific hardware structure of the network equipment 110 provided in the embodiment of the present application, and the structure is, first may include a network interface 1301, a first memory 1302 and a first processor 1303; Each assembly is connected together via bus system 1304. As can be appreciated, the bus system 1304 is intended to implement interconnected communication between these assemblies. Bus system 1304 includes a data bus, as well as a power bus, a control bus, and a status signal bus. However, for clarity, various buses are all denoted as bus system 1304 in FIG. 13 . Here, the first network interface 1301 receives and transmits signals in the process of transmitting and receiving information with other external network elements;

The first memory 1302 is configured to store a computer program operable on the first processor 1303;

When the computer program runs, the first processor 1303

dicing data of a service to be transmitted according to a preset length to obtain at least one data block;

packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted;

parsing each of the messages to be transmitted, and determining a transmission direction of each of the messages to be transmitted;

scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate; is configured to run

It should be appreciated that the first memory 1302 of embodiments of the present application may be volatile memory or non-volatile memory, or may include volatile memory or non-volatile memory. Here, the non-volatile memory includes read-only memory (ROM), programmable read-only memory (Programmable ROM, PROM), erasable PROM (Erasable PROM, EPROM), and electrically erasable PROM (Electrically EPROM, EEPROM). Or it may be a flash memory. Volatile memory can be Random Access Memory (RAM), which is used as an external cache. For example, static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), DDR synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It can be described by way of example, but is not limited thereto. The first memory 1302 of the systems and methods described herein includes, but is not limited to, such memory and any other suitable type of memory.

The first processor 1303 may be an integrated circuit chip having signal processing capability. In the implementation process, each step of the method may be completed through a hardware integrated logic circuit of the first processor 1303 or a software command. The first processor 1303 may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other It can be a programmable logic device, a discrete gate or transistor logic device, or a discrete hardware assembly. Each method, step and logic block diagram disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. Combining the steps of the methods disclosed in the embodiments of the present application may be directly implemented in a manner that is executed and completed by a hardware decoding processor or executed and completed by a combination of hardware and software modules of the decoding processor. The software module may be located in a storage medium known in the art, such as a random memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable PROM or register. The storage medium is located in the first memory 1302, and the first processor 1303 reads the information in the first memory 1302 and combines it with hardware to complete the steps of the foregoing method.

To be understood, the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or combinations thereof. In hardware implementation, the processing unit includes one or a plurality of application specific integrated circuits (ASICs), digital signal processing (DSP), digital signal processing equipment (DSP Device, DSPD), and programs. A programmable logic device (PLD), a field-programmable gate array (FPGA), a general-purpose processor, controller, microcontroller, microprocessor, other electronic unit for performing functions according to the present application, or can be implemented in their combination.

In the case of implementation through software, the technology described in this document can be implemented through the functional modules (eg, process, function, etc.) described in this document. Software codes can be stored in memory and executed by a processor. Memory may be implemented on the processor or external to the processor.

Specifically, the first processor 1303 of the network equipment 110 is further configured to execute the steps of the method according to the foregoing Embodiment 1 when the computer program is run, which is not described herein again.

Referring to FIG. 14, FIG. 14 shows the configuration of a network facility 140 provided in an embodiment of the present application, and the corresponding network facility 140 includes a depacketization part 1401 and a first recovery part 1402 , including a second restoration part 1403 and a second transmission part 1404; here,

the depacketization unit 1401 is configured to depacketize the received transport message to obtain a data block stream carried by the transport message;

the first reconstruction part 1402 is configured to perform reverse decoding according to a coding recovery strategy set for the data block to obtain a bitstream corresponding to a coding scheme of the original service data;

the second restoration part 1403 is configured to restore the original service data from the bitstream;

The second transmission part 1404 is configured to transmit original service data to the client end.

In addition, this embodiment provides a computer storage medium, and a service transmission program is stored in the computer storage medium, and when the service transmission program is operated by at least one processor, the steps of the method according to the second embodiment are performed. will be implemented For a detailed description of the computer storage medium, refer to the description of Example 4, and thus will not be repeated here.

Based on the network equipment 140 and the computer storage medium, referring to FIG. 15, FIG. 15 discloses a specific hardware structure of the network equipment 140 provided in the embodiment of the present application, and the structure is may include a network interface 1501, a second memory 1502 and a second processor 1503; Each assembly is connected together via a bus system 1504. As can be appreciated, the bus system 1504 is intended to implement interconnected communication between these assemblies. Bus system 1504 includes a data bus, as well as a power bus, a control bus, and a status signal bus. However, for clarity, various buses are all denoted as bus system 1504 in FIG. 15 .

Here, the second network interface 1501 receives and transmits signals in the process of transmitting and receiving information with other external network elements;

the second memory 1502 is configured to store a computer program operable on the second processor 1503;

When the computer program runs, the second processor 1503

depacketizing a received transport message to obtain a data block stream carried by the transport message;

obtaining a bitstream corresponding to a coding scheme of the original service data by performing reverse decoding according to a coding recovery strategy set for the data block;

restoring the original service data from the bitstream;

transmitting the raw service data to a client end; is configured to run

It should be understood that the components of the specific hardware structure of the network equipment 140 in this embodiment are similar to the corresponding parts in Embodiment 4, and will not be repeated here.

Specifically, the second processor 1503 of the network equipment 140 is further configured to execute the steps of the method according to the foregoing Embodiment 2 when the computer program is run, which is not described herein again.

Based on the above embodiments, the embodiments of the present application further provide a service transmission system, which may include network equipment 110 according to embodiment 4 and network equipment 140 according to embodiment 5. . It should be noted that the system may implement the steps of the process according to the foregoing Embodiment 3, and thus are not repeatedly described herein.

It should be explained that the technical solutions described in the embodiments of the present application may be arbitrarily combined as long as they do not contradict each other.

The above is only specific embodiments of the present application, and the scope of protection of the present application is not limited thereto. A person skilled in the art can easily come up with a change or replacement within the technical scope disclosed in this application, and all such changes or replacements should fall within the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (25)

dicing data of a service to be transmitted according to a preset length to obtain at least one data block;
packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted;
parsing each of the messages to be transmitted, and determining a transmission direction of each of the messages to be transmitted;
scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate; A service transmission method comprising a. According to claim 1,
Corresponding to the case where the data of the service to be transmitted is a bitstream received through a physical interface, the step of dicing the data of the service to be transmitted according to a preset length to obtain at least one data block,
dicing the bitstream received through the physical interface according to the preset length to obtain at least one data block;
or, coding the bitstream received through the physical interface according to a set coding strategy and then dicing the coded bitstream according to the preset length to obtain at least one data block; A service transmission method comprising a. According to claim 1,
Corresponding to the case where the data of the service to be transmitted is message data received through a user interface, the step of dicing the data of the service to be transmitted according to a preset length to obtain at least one data block,
coding the message data according to a set coding strategy;
adjusting a transmission rate of coded message data and buffering the coded message data;
dicing the buffered coded message data according to the preset length to obtain at least one data block; A service transmission method comprising a. According to claim 2 or 3,
Corresponding to the case where the coded bitstream or the coded message data is a 66-bit stream, the preset length is an integer multiple of 66 bits; or,
Corresponding to the case where the coded bitstream or the coded message data is a 65-bit stream, the preset length is an integer multiple of 65 bits; or,
When corresponding to the case where the coded bitstream or the coded message data is a 10-bit stream, the preset length is an integer multiple of 10 bits. According to claim 1,
The step of packetizing each of the data blocks according to a preset message format to obtain at least one message to be transmitted,
and packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to be transmitted. According to claim 5,
The step of packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to be transmitted,
packetizing a protocol label of multi-protocol label switching (MPLS) of each data block into the Ethernet message to be transmitted; Here, the MPLS protocol label of the data block includes at least one of a pseudo line label, a tunnel label, and a pseudo line control word. According to claim 5,
The step of packetizing each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to transmit,
packetizing the accompanying information of each data block into the Ethernet message to be transmitted; Here, the service transmission method characterized in that the attached information of the data block includes at least one of a serial number, clock information and time stamp value. According to claim 1,
The step of scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate,
scheduling messages to be transmitted in the same transmission direction and in the same processing method in the same service flow according to a polling scheduling scheme;
transmitting the service flow through an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate; A service transmission method comprising a. According to claim 1,
The step of scheduling messages to be transmitted in the same transmission direction and using the same processing method in the same service flow, and transmitting the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate,
When only one service flow among a plurality of service flows is scheduled and can be output, a service flow that can be scheduled and output is scheduled using a multi-selection method, and is transmitted to an exclusive network interface or an exclusive time slot of the network interface according to the set transmission rate. A service transmission method comprising the step of transmitting. The method of any one of claims 1 to 3 and 5 to 9,
After receiving at least one physical signal from the exclusive network interface or exclusive time slot of the network interface, respectively recovering each said physical signal into message data;
parsing message data corresponding to each of the physical signals to determine a transmission direction of at least one message data;
scheduling message data having the same transmission direction and processing method into the same service flow, mapping the service flow through the service, and transmitting the message data through an exclusive network interface or an exclusive time slot of the network interface; Service transmission method characterized in that it further comprises. including a dicing part, a packetization part, a parsing part, a scheduling part and a first transmission part; here,
the dicing portion is configured to dice data of a service to be transmitted according to a preset length to obtain at least one data block;
the packetization unit is configured to packetize each of the data blocks according to a preset message format, obtain at least one message to be transmitted, and transmit the message to be transmitted to the parsing unit according to a set transmission rate;
the parsing portion is configured to parse each of the messages to be transmitted to determine a transmission direction of each of the messages to be transmitted;
the scheduling part is configured to schedule messages to be transmitted in the same transmission direction and in the same processing manner in the same service flow;
The network equipment, characterized in that, the first transmission part is configured to transmit the service flow to an exclusive network interface or an exclusive time slot of the network interface according to a set transmission rate. According to claim 11,
Corresponding to the case where the data of the service to be transmitted is a bitstream received through a physical interface, the dicing part,
dicing the bitstream received through the physical interface according to the preset length to obtain at least one data block;
or, after coding a bitstream received through the physical interface according to a set coding strategy, dicing the coded bitstream according to the preset length to obtain at least one data block;
or,
Corresponding to the case where the data of the service to be transmitted is message data received through the user interface, the dicing portion,
coding the message data according to a set coding strategy;
adjusting the transmission rate of coded message data and buffering the coded message data;
dicing the buffered coded message data according to the preset length to obtain at least one data block;
Here, corresponding to the case where the coded bitstream or the coded message data is a 66-bit stream, the preset length is an integer multiple of 66 bits; or, corresponding to the case where the coded bitstream or the coded message data is a 65-bit stream, the preset length is an integer multiple of 65 bits; or, corresponding to the case where the coded bitstream or the coded message data is a 10-bit stream, the preset length is an integer multiple of 10 bits. According to claim 11,
The packetization part,
Packetize each of the data blocks according to an Ethernet message format to obtain at least one Ethernet message to transmit;
Here, the packetization part,
configured to packetize a protocol label of MPLS of each data block into the Ethernet message to be transmitted; Here, the MPLS protocol label of the data block includes at least one of a pseudo line label, a tunnel label, and a pseudo line control word;
or,
The packetization part,
configured to packetize the accompanying information of each data block into the Ethernet message to be transmitted; Here, the data block information includes at least one of a serial number, clock information, and a time stamp value. According to claim 11,
The scheduling part,
According to the polling scheduling method, messages to be transmitted with the same transmission direction and the same processing method are scheduled in the same service flow;
configured to transmit the service flow to an exclusive network interface or an exclusive time slot of a network interface according to a set transmission rate;
or,
The scheduling part,
When only one service flow among a plurality of service flows is scheduled and can be output, a service flow that can be scheduled and output is scheduled using a multi-selection method, and is transmitted to an exclusive network interface or an exclusive time slot of the network interface according to the set transmission rate. Network equipment, characterized in that it is configured to transmit. According to any one of claims 11 to 14,
and a recovery unit configured to, after receiving at least one physical signal from the exclusive network interface or the exclusive time slot of the network interface, respectively restore each said physical signal into message data;
the parsing part is further configured to parse message data corresponding to each of the physical signals to determine a transmission direction of at least one of the message data;
The scheduling part schedules message data having the same transmission direction and processing method in the same service flow, mapping the service flow through the service, and transmitting through an exclusive network interface or an exclusive time slot of the network interface. Network equipment, characterized in that configured. including a depacketization part, a first recovery part, a second recovery part and a second transmission part; here,
the depacketization unit is configured to depacketize a received transport message to obtain a data block stream carried by the transport message;
the first reconstruction part is configured to perform reverse decoding according to a coding recovery strategy set for the data block to obtain a bitstream corresponding to a coding scheme of original service data;
the second restoration part is configured to restore the original service data from the bitstream;
The network equipment according to claim 1, wherein the second transmission part is configured to transmit raw service data to the client end. A network equipment comprising a first network interface, a first memory and a first processor,
the first network interface is configured to receive and transmit signals in the process of transmitting and receiving information with other external network elements; The first memory is configured to store a computer program operable by the first processor; The first processor is configured to execute the steps of the method according to any one of claims 1 to 3 and 5 to 9 when the computer program is run. If a service delivery program is stored and the service delivery program is operated by at least one processor, the steps of the service delivery method according to any one of claims 1 to 3 and 5 to 9 are executed. Computer readable non-transitory storage medium, characterized in that. delete delete delete delete delete delete delete

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