WO2018054209A1

WO2018054209A1 - Method, device and system for processing transport multi-protocol packet segmented layer (tms)

Info

Publication number: WO2018054209A1
Application number: PCT/CN2017/100121
Authority: WO
Inventors: 杨红霞
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-09-23
Filing date: 2017-09-01
Publication date: 2018-03-29
Also published as: CN107872333B; CN107872333A

Abstract

The present invention provides a method, device and system for establishing a transport multi-protocol packet segmented layer (TMS). The method comprises: acquiring information of at least two packet-optical transport network (POTN) apparatuses in a POTN; determining, according to the information, whether POTN transmission is executable between any two POTN apparatuses of the at least two POTN apparatuses; if the POTN transmission is executable, performing configuration of a TMS to generate configuration data, used for generating the TMS by the any two POTN apparatuses; and transmitting the configuration data to any two POTN apparatuses. The invention achieves the establishment of a TMS layer on a POTN, solving an issue in related technology wherein a TMS cannot be established across an OTN and a PTN.

Description

Processing method, device and system for transmitting multi-protocol packet segment layer TMS

Technical field

The present invention relates to the field of communications, and in particular, to a method, a device and a system for processing a Transmission Multi-Protocol Packet Segment (TMS) based on a Packet Optical Transport Network (POTN) network.

Background technique

POTN is a transport network that combines packet transmission technology and optical transmission technology. It is based on a unified packet switching platform and can support both Ethernet switching and Optical Transport Network (OTN) switching, enabling POTN to be deployed in different applications and networks. Underneath, can be flexibly cut and added.

POTN is mainly located at the aggregation layer and the core layer. There are two routes for the evolution of POTN. One is to increase the function of the OTN network based on the Packet Transport Network (PTN) network, and the other is to increase the function of the PTN network based on the OTN network. . Currently, PTN and OTN/WDM devices are evolving along these two routes. Regardless of the evolutionary route, it involves the integration of OTN networks and PTN networks.

The TMS layer is the service bearer service layer that carries the PTN service. According to the service model of the PTN network, the TMS layer must first exist to build a new PTN service. Whether the PTN service is added to the OTN network or the OTN service is added to the PTN network, a new TMS layer needs to be created on the POTN board to serve as the service bearer service layer in the POTN network.

Related technologies have not yet proposed a solution for how to create a TMS layer across OTN and PTN networks.

Summary of the invention

The embodiment of the invention provides a method, a device and a system for creating a multi-protocol packet segment layer TMS, so as to solve the problem that the related technology cannot create a TMS layer across the OTN and the PTN network.

To solve the above problem, the technical solution of the embodiment of the present invention is implemented as follows:

A method for processing a multi-protocol packet segment layer TMS, comprising the following steps:

Acquiring information of at least two POTN devices of the optical packet transport network POTN;

Determining, according to the information, whether POTN transmission is possible between any two of the at least two POTN devices;

The configuration of the transmission multi-protocol packet segment layer TMS is performed to generate the configuration data, where the configuration data is used by the any two POTN devices to generate the TMS;

The configuration data is sent to any two of the POTN devices.

In an embodiment, determining, according to the information, whether the POTN transmission can be performed between the any two POTN devices in the at least two POTN devices includes at least one of the following:

Determining any two POTN settings if there is no physical path between any two POTN devices The POTN transmission cannot be performed between the backups;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in any one of the two POTN devices is smaller than the number of slots of the optical transport network OTN Determining that the POTN transmission cannot be performed between any two POTN devices, where the OTN is used to generate the POTN, and the number of the time slots is used to generate a bandwidth of the OTN;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in each of the two POTN devices is not less than the number of slots of the OTN Determining that the POTN transmission can be performed between any two POTN devices.

In an embodiment, determining that the physical path exists between any two POTN devices includes:

Determining whether the connection between the at least one of the two POTN devices is established by the POTN board of the POTN device: a direct optical connection, an optical connection through a split-waveboard, a split-waveboard, and a light Amplifying the optical connection of the board;

In the case where the determination result is yes, it is determined that the physical path exists between any two POTN devices.

In an embodiment, performing the configuration of the TMS, and generating the configuration data includes:

Configuring a virtual port of the TMS and a data unit of the OTN;

Binding the virtual port to the data unit of the OTN to generate configuration data of the binding relationship.

In an embodiment, configuring the data unit of the OTN includes:

Setting the wavelength adjustment tuning of the optical channel OCH port;

When the wavelength adjustment tuning setting is successful, performing port binding of the optical forwarding unit OTUk;

And performing service mapping on the OTUk according to the idle time slot and the time slot bandwidth of the OTN, and determining a corresponding data unit, where the time slot bandwidth is used to generate a bandwidth of the optical transmission network OTN.

In an embodiment, the data unit comprises an optical path data unit ODUk or a flexible rate optical digital unit ODUflex.

In an embodiment, before the binding of the virtual port to the data unit of the optical transport network OTN, the method further includes:

Determining whether the virtual port is successfully configured;

In the case that the virtual port configuration fails, the configuration data of the virtual port is deleted.

In an embodiment, after the virtual port is bound to the data unit of the OTN, the method further includes:

Setting a reserved bandwidth and a convergence ratio according to a network attribute of the packet transport network PTN, the packet transport network PTN is configured to generate the optical packet transport network POTN, where the reserved bandwidth is not greater than a bandwidth of the OTN, and the convergence ratio The actual bandwidth used to generate the POTN;

Generating the reserved bandwidth and configuration data of the convergence ratio.

The embodiment of the invention further provides a processing device for transmitting a multi-protocol packet segment layer TMS, including:

a determining module, configured to acquire information of at least two POTN devices of the optical packet transport network POTN;

a determining module, configured to determine, according to the information, any two of the at least two POTN devices Whether it is possible to carry out POTN transmission;

a configuration module, configured to perform configuration of a transport multi-protocol packet segment layer TMS to generate configuration data, where the configuration data is used by the any two POTN devices to generate the TMS ;

And a sending module, configured to send the configuration data to any two POTN devices.

In an embodiment, the determining module is configured to:

In the case that there is no physical path between the two POTN devices, it is determined that the POTN transmission cannot be performed between any two POTN devices;

In an embodiment, the configuration module includes:

a configuration submodule, configured to configure a virtual port of the TMS and a data unit of the OTN;

The binding submodule is configured to bind the virtual port to the data unit of the OTN to generate configuration data of the binding relationship.

In an embodiment, the above device is disposed in the network management.

The embodiment of the invention further provides a processing system for transmitting a multi-protocol packet segment layer TMS, including:

a network management unit, configured to obtain information about at least two POTN devices of the optical packet transport network POTN; determine, according to the information, whether POTN transmission can be performed between any two POTN devices in the POTN device; and enable the POTN transmission a configuration of transmitting a multi-protocol packet segment layer TMS, where configuration data is generated, wherein the configuration data is used by the any two POTN devices to generate the TMS; and the configuration data is sent to the any two POTN devices;

The any two POTN devices are configured to receive configuration data sent by the network management device to generate the TMS.

The embodiment of the present invention obtains information about at least two POTN devices, determines whether any two POTN devices have POTN information transmission conditions according to the information, and configures TMS to generate related information when information transmission conditions are met. The configuration parameters are sent to the two POTN devices for TMS generation, which solves the problem that related technologies cannot create TMS across OTN and PTN networks.

DRAWINGS

1 is a method for creating a transport multi-protocol packet segment layer TMS according to an embodiment of the present invention;

2 is a method for determining POTN information transmission between any two POTN devices according to an embodiment of the present invention;

FIG. 3 is a diagram of determining whether a physical path exists between any two POTN devices according to an embodiment of the present invention. Methods;

4 is a block diagram of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention;

FIG. 5 is a second block diagram of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention;

6 is a block diagram 3 of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention;

FIG. 7 is a block diagram of a system for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

An embodiment of the present invention provides a method for creating a multi-protocol packet segment layer TMS, which acquires information of at least two POTN devices, and determines whether any two POTN devices have POTN information transmission conditions according to the information. In the case of information transmission, the TMS is configured to generate relevant configuration parameters, and the parameters are sent to the two POTN devices for TMS generation. 1 is a method for creating a transport multi-protocol packet segment layer TMS according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

Step S102, acquiring information of at least two POTN devices of the optical packet transmission network POTN;

Step S104, determining, according to the information, whether POTN transmission can be performed between any two of the at least two POTN devices;

When the POTN device (or network element) configured by the NMS or the POTN device configured by the user is two, it is determined whether the two devices have the capability of information transmission, and if so, perform subsequent operations;

When there are more than two POTN devices (or network elements) configured by the NMS or POTN devices configured by the user, the POTN devices are paired with each other. Each of the two devices can generate a TMS segment layer to determine any two devices. Whether it has the ability to transmit information, if necessary, perform subsequent operations.

Step S106, in the case that the POTN transmission is possible, the configuration of the transmission multi-protocol packet segment layer TMS is performed to generate configuration data, where the configuration data is used by the any two POTN devices to generate the TMS;

Step S108, the configuration data is sent to the any two POTN devices.

In the case that there is no physical path between the two POTN devices, it is determined that the POTN transmission cannot be performed between the two POTN devices;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in any one of the two POTN devices is smaller than the number of slots of the optical transport network OTN, The POTN transmission cannot be performed between any two POTN devices, where the OTN is used to generate the POTN, and the number of the time slots is used to generate the bandwidth of the OTN;

There is a physical path between the two POTN devices, and in a case where the number of idle slots in each of the two POTN devices is not less than the number of slots of the OTN, determining the This POTN transmission can be performed between any two POTN devices.

The existence of physical paths and sufficient bandwidth are prerequisites for POTN information transmission.

2 is a method for determining POTN information transmission between any two POTN devices according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:

Step S202, determining whether there is a physical path between the two POTN devices;

Step S204, determining whether the number of idle slots in each POTN device is not less than the number of slots of the optical transport network OTN in the presence of the physical path;

Step S206, if the number of the idle time slots is not less than the number of the time slots, it is determined that information transmission between the two POTN devices is possible.

As the bearer service service layer of the PTN service, the TMS layer definitely needs a bandwidth. In the OTN network, the bandwidth is calculated by a single time slot bandwidth * the number of time slots, and the multiplied bandwidth can be used as the maximum available bandwidth of the TMS segment layer. In addition, the reserved bandwidth and the convergence ratio may be set according to the PTN network characteristics, where the reserved bandwidth is the bandwidth of the TMS segment layer, and the convergence ratio is multiplied by the bandwidth of the TMS segment layer to obtain the actual bandwidth of the POTN network.

In an embodiment, determining that the physical path exists between the two POTN devices includes:

It is determined whether the connection between the two POTN devices is established through the POTN board of the POTN device: direct optical connection, optical connection through the split-waveboard, and the split-waveboard and the optical amplifier board. Optical connection

In the case where the determination result is YES, it is determined that the physical path exists between the two POTN devices.

FIG. 3 illustrates a method for determining whether a physical path exists between any two POTN devices according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:

Step S302, determining whether the optical connection is directly established between the two POTN devices through the POTN boards of the two POTN devices;

If the result of the determination is yes, the process proceeds to step S308;

In step S304, if the result of the determination is negative, it is determined whether the optical connection is established between the POTN boards through the multiplexed wave board;

If the result of the determination is yes, the process proceeds to step S308;

In step S306, if the result of the determination is no, it is determined whether the optical connection is established between the POTN boards through the multiplexed wave board and the optical amplifying board;

If the result of the determination is yes, the process proceeds to step S308;

Step S308, determining that the physical path exists;

In step S310, if the determination result is no, it is determined that the physical path does not exist.

In an embodiment, the step of transmitting the configuration of the multi-protocol packet segment layer TMS to generate configuration data includes:

Configuring the virtual port of the TMS and the data unit of the OTN;

The virtual port is bound to the data unit of the OTN to generate configuration data of the binding relationship.

A TMS segment layer needs to be configured with two virtual ports. The two virtual ports are provided by any two POTN devices, that is, one POTN device provides a virtual port.

In an embodiment, the step of configuring the data unit of the OTN includes:

Setting the wavelength adjustment tuning of the optical channel OCH port;

In the case that the wavelength adjustment tuning setting is successful, the port binding of the optical forwarding unit OTUk is performed;

The OTUk is service mapped according to the idle time slot and the time slot bandwidth of the optical transport network OTN, and the corresponding data unit is determined, wherein the time slot bandwidth is used to generate the bandwidth of the optical transport network OTN.

In an embodiment, the data unit may include an optical path data unit ODUk or a flexible rate optical digital unit ODUflex.

OTUk is a large bandwidth data unit in an OTN network. ODUk and ODUflex are two different bandwidth data units generated by OTUk. When the service mapping is performed on the OTUk, the data unit ODUk or ODUflex closest to the previous single slot bandwidth is selected. The number of time slots of the OTN network determines the number of specific idle time slots and the time slot number, and the idle time slot further determines the corresponding data unit.

The above steps are steps for configuring the performance of the OTN network. During the generation process of the TMS segment layer, the OTN network can be better integrated into the POTN network through the above operations. For the POTN network, the characteristics of the PTN network are easy to grasp, so there is no need to specifically set it.

Determine whether the virtual port is configured successfully.

If the configuration of the virtual port fails, the configuration data of the virtual port is deleted.

In addition, the step of setting the wavelength adjustment tuning of the optical channel OCH port further includes deleting data generated in the previous setting process when the wavelength adjustment tuning setting fails, thereby avoiding waste of storage resources.

Similarly, the step of performing port binding, service mapping, and data unit determination of the optical forwarding unit OTUk may also include: in the case of port binding failure, service mapping failure, and data unit determination, deleting the previous setting process Data to avoid wasting storage resources.

Of course, in the case that the above configuration fails, the data generated during the configuration process can also be reserved to prevent the use of related data in some cases.

In an embodiment, after the virtual port is bound to the data unit of the optical transport network OTN, the method further includes:

Setting a reserved bandwidth and a convergence ratio according to the network attribute of the packet transport network PTN, the packet transport network PTN is configured to generate the optical packet transport network POTN, the reserved bandwidth is not greater than the bandwidth of the OTN, and the convergence ratio is used to generate the POTN Actual bandwidth

The reserved bandwidth and the configuration data of the convergence ratio are generated.

The above process is a process that can be repeated multiple times. The same POTN network element can be selected multiple times to create different TMSs. Of course, different POTN network elements can be selected to create different TMSs. When creating different TMSs, the NMS automatically searches for different idle time slots and generates TMS virtual ports with different port numbers to implement TMS generation. In addition, parameters such as reserved bandwidth and convergence ratio of each TMS can also be used according to requirements. Flexible settings.

The embodiment of the present invention further provides a device for creating a multi-protocol packet segment layer TMS, and FIG. 4 is a block diagram of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention, as shown in FIG. The device includes:

The determining module 42 is configured to acquire information of at least two POTN devices of the optical packet transport network POTN;

The determining module 44 is configured to determine, according to the information, whether the POTN transmission can be performed between any two of the at least two POTN devices;

The configuration module 46 is configured to: perform the configuration of the transmission multi-protocol packet segment layer TMS to generate the configuration data, where the configuration data is used by the any two POTN devices to generate the TMS;

The sending module 48 is configured to send the configuration data to the any two POTN devices.

In an embodiment, the determining module 44 is configured to:

The determining that the physical path exists between any two POTN devices includes:

It is determined whether the connection between the two POTN devices is established through the POTN board of the POTN device: direct optical connection, optical connection through the split-waveboard, and the split-waveboard and the optical amplifier board. Light connection.

FIG. 5 is a block diagram 2 of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention. As shown in FIG. 5, the configuration module 46 includes:

a configuration sub-module 52, configured to configure a virtual port of the TMS and a data unit of the OTN;

The binding sub-module 54 is configured to bind the virtual port to the data unit of the OTN to generate configuration data of the binding relationship.

In an embodiment, the configuration sub-module 52 is configured to set a wavelength adjustment tuning of the optical channel OCH port; if the wavelength adjustment tuning setting is successful, perform port binding of the optical forwarding unit OTUk; according to the idle time slot And the time slot bandwidth of the optical transport network OTN performs service mapping on the OTUk to determine a corresponding data unit, wherein the time slot bandwidth is used to generate a bandwidth of the optical transport network OTN.

FIG. 6 is a block diagram 3 of a device for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention. As shown in FIG. 6, the device further includes:

The deleting module 62 is configured to determine whether the virtual port is successfully configured.

The embodiment of the present invention further provides a system for creating a multi-protocol packet segment layer TMS, and FIG. 7 is a block diagram of a system for creating a multi-protocol packet segment layer TMS according to an embodiment of the present invention, as shown in FIG. The system includes:

The network management unit 72 is configured to acquire information about at least two POTN devices of the optical packet transport network POTN, and determine, according to the information, whether POTN transmission can be performed between any two POTN devices in the POTN device; In the case of POTN transmission, the configuration of the transmission multi-protocol packet segment layer TMS is performed to generate configuration data, wherein the configuration data is used by the any two POTN devices to generate the TMS; and the configuration data is sent to the any two POTN devices. ;

Any two POTN devices 74 are configured to receive configuration data sent by the network management system to generate a TMS.

Embodiments of the present invention also provide a storage medium that can be configured to store program code for performing the above steps.

Through the description of the above embodiments, those skilled in the art can understand that the method according to the foregoing embodiment can be implemented by means of software plus a necessary general hardware platform, or can also be implemented by hardware. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), including a plurality of instructions for making a terminal. The device (which may be a cell phone, computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention. Inside.

Industrial applicability

The present disclosure is applicable to the field of communications to solve the problem that related technologies cannot create TMS across OTN and PTN networks.

Claims

A method for processing a multi-protocol packet segment layer TMS, comprising:

Acquiring information of at least two POTN devices of the optical packet transport network POTN;

Determining, according to the information, whether POTN transmission is possible between any two of the at least two POTN devices;

The configuration of the transmission multi-protocol packet segment layer TMS is performed to generate the configuration data, where the configuration data is used by the any two POTN devices to generate the TMS;

The configuration data is sent to any two of the POTN devices.
The method of claim 1, wherein determining, according to the information, whether the POTN transmission is possible between the any two of the at least two POTN devices comprises at least one of:

In the case that there is no physical path between the two POTN devices, it is determined that the POTN transmission cannot be performed between any two POTN devices;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in any one of the two POTN devices is smaller than the number of slots of the optical transport network OTN Determining that the POTN transmission cannot be performed between any two POTN devices, where the OTN is used to generate the POTN, and the number of the time slots is used to generate a bandwidth of the OTN;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in each of the two POTN devices is not less than the number of slots of the OTN Determining that the POTN transmission can be performed between any two POTN devices.
The method of claim 2, wherein determining that the physical path exists between the two POTN devices comprises:

Determining whether the connection between the at least one of the two POTN devices is established by the POTN board of the POTN device: a direct optical connection, an optical connection through a split-waveboard, a split-waveboard, and a light Amplifying the optical connection of the board;

In the case where the determination result is yes, it is determined that the physical path exists between any two POTN devices.
The method of claim 1, wherein the configuring the TMS, the generating the configuration data comprises:

Configuring a virtual port of the TMS and a data unit of the OTN;

Binding the virtual port to the data unit of the OTN to generate configuration data of the binding relationship.
The method of claim 4 wherein configuring the data unit of the OTN comprises:

Setting the wavelength adjustment tuning of the optical channel OCH port;

When the wavelength adjustment tuning setting is successful, performing port binding of the optical forwarding unit OTUk;

And performing service mapping on the OTUk according to the idle time slot and the time slot bandwidth of the OTN, and determining a corresponding data unit, where the time slot bandwidth is used to generate a bandwidth of the OTN.
The method of claim 5 wherein said data unit comprises a light path data unit ODUk or Spirit Live rate optical digital unit ODUflex.
The method of any of claims 4-6, wherein before the binding of the virtual port to the data unit of the OTN, the method further comprises:

Determining whether the virtual port is successfully configured;

In the case that the virtual port configuration fails, the configuration data of the virtual port is deleted.
The method of any of claims 4-6, wherein after the virtual port is bound to the data unit of the OTN, the method further comprises:

Setting a reserved bandwidth and a convergence ratio according to the network attribute of the packet transport network PTN, where the PTN is used to generate the optical packet transport network POTN, the reserved bandwidth is not greater than the bandwidth of the OTN, and the convergence ratio is used. Generating the actual bandwidth of the POTN;

Generating the reserved bandwidth and configuration data of the convergence ratio.
A processing device for transmitting a multi-protocol packet segment layer TMS, comprising:

a determining module, configured to acquire information of at least two POTN devices of the optical packet transport network POTN;

a determining module, configured to determine, according to the information, whether POTN transmission is possible between any two of the at least two POTN devices;

a configuration module, configured to perform configuration of a transport multi-protocol packet segment layer TMS to generate configuration data, wherein the configuration data is used by the any two POTN devices to generate the TMS if the POTN transmission is enabled ;

And a sending module, configured to send the configuration data to any two of the POTN devices.
The apparatus of claim 9 wherein said determining module is configured to:

In the case that there is no physical path between the two POTN devices, it is determined that the POTN transmission cannot be performed between any two POTN devices;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in any one of the two POTN devices is smaller than the number of slots of the optical transport network OTN Determining that the POTN transmission cannot be performed between any two POTN devices, where the OTN is used to generate the POTN, and the number of the time slots is used to generate a bandwidth of the OTN;

There is a physical path between the two POTN devices, and in the case where the number of idle slots in each of the two POTN devices is not less than the number of slots of the OTN Determining that the POTN transmission can be performed between any two POTN devices.
The apparatus of claim 9 wherein said configuration module comprises:

a configuration submodule, configured to configure a virtual port of the TMS and a data unit of the OTN;

The binding submodule is configured to bind the virtual port to the data unit of the OTN to generate configuration data of the binding relationship.
A device according to any of claims 9-11, wherein the device is disposed in a network management.
A processing system for transmitting a multi-protocol packet segment layer TMS, comprising:

a network management, configured to acquire information of at least two POTN devices of the optical packet transport network POTN; and determine, according to the information, whether POTN transmission can be performed between any two of the at least two POTN devices; In the case of the POTN transmission, the configuration of the transport multi-protocol packet segment layer TMS is performed to generate configuration data, wherein the configuration data is used by the any two POTN devices to generate the TMS; and the configuration data is sent to the Said any two POTN devices;

The any two POTN devices are configured to receive configuration data sent by the network management system to generate the TMS.