CN108270623B - Method and system for TDM business network management automatic configuration based on packet transport network - Google Patents

Abstract

The invention discloses a method and a system for TDM service network management automatic configuration based on a packet transport network, relating to the field of packet transport networks. The method comprises the following steps: configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port; automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule; interface parameter templating configuration, including setting attribute information of physical, control and service interfaces; binding the pseudo wire PW by the emulation service, and issuing the data to the equipment. The invention can rapidly and intelligently configure the TDM service, particularly automatically generate the network management of the simulation control port and the simulation service port, and perform interface parameter templating processing, thereby effectively simplifying the operation, improving the configuration efficiency and having better user experience.

Description

Method and system for TDM business network management automatic configuration based on packet transport network

Technical Field

The invention relates to the field of packet transport networks, in particular to a method and a system for automatic configuration of a TDM service network management based on a packet transport network.

Background

Conventional real-Time traffic such as voice is transmitted through a TDM (Time Division Multiplex) network. TDM networks are based on circuit-switched technology and, while providing reliable quality of service, have low bandwidth utilization and are expensive. Nowadays, MPLS (Multi-Protocol Label Switching) based packet networks are ubiquitous, and their price advantage enables TDM traffic to converge towards packet networks. Packet networks were originally designed to carry data traffic only, and are now facing the challenge of carrying real-time traffic, such as voice, video, etc.

The research of Time Division Multiplexing (TDM) service transparent transmission based on a Packet Transport Network (PTN) comes from the beginning, and the technology mainly packages TDM base group signals such as E1 according to a pseudo wire emulation Protocol, and then transmits the TDM base group signals on networks such as MPLS and Internet Protocol (IP) after carrying layer headers of L2 and L3, and provides an effective path for switching a traditional transmission Network service to a data Network service.

The TDM service is implemented by a control port and a service port, which need to be configured and managed on a network manager. At the present stage, interface objects on three layers of physics, control and service are mainly configured layer by layer and display by manpower for an application scene configured by a TDM service network management based on a Packet Transport Network (PTN); particularly, in engineering, an input STM-N signal is channelized and simulated into a Service port of CES (Circuit Emulation Service) -E1 or CES-64k, so that the operation is extremely complicated, and the user experience is poor.

Therefore, how to standardize and efficiently perform automatic configuration of the network management of the TDM service is an important problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The invention aims to overcome the defects of the background technology, and provides a method and a system for TDM service network management automatic configuration based on a packet transport network, which can rapidly and intelligently configure TDM services, particularly network management automatic generation of a simulation control port and a simulation service port, and interface parameter templating processing, can effectively simplify operation, improve configuration efficiency, and have better user experience.

The invention provides a TDM business network management automatic configuration method based on a packet transport network, which comprises the following steps:

A. configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port;

B. automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule;

C. interface parameter templating configuration, including setting attribute information of physical, control and service interfaces;

D. binding the pseudo wire PW by the emulation service, and issuing the data to the equipment.

On the basis of the technical scheme, the step A comprises the following steps:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the simulation mode comprises a circuit simulation service CES and a circuit simulation CEP in a packet-switched network, wherein the CES realizes an E1 signal through an unstructured simulation technology or realizes the encapsulation of a 64k signal through a structured simulation technology; the CEP realizes the VC4 signal through an unstructured simulation technology or realizes the encapsulation of the VC12 signal through a structured simulation technology;

providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64k, and for CEP simulation, the service level is CEP-VC4 or CEP-VC 12; for CES emulation, the service level is CES-E1 or CES-64 k;

filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

On the basis of the technical scheme, the step B comprises the following steps:

obtaining TDM ports appointed by users one by one, and judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

and completing the automatic generation of the simulation control port and the simulation service port.

On the basis of the technical scheme, the step C comprises the following steps:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating high-order and low-order control port parameter templates on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

On the basis of the technical scheme, the step D comprises the following steps:

providing a service interface on a designated node for selection by a user;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the service and the PW circuit;

and issuing the network management object data to the equipment.

The invention also provides a system for TDM service network management automatic configuration based on the packet transport network, which comprises a first configuration unit, an automatic generation unit, a second configuration unit and a sending unit, wherein:

the first configuration unit is used for: configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port;

the automatic generation unit is used for: automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule;

the second configuration unit is used for: interface parameter templating configuration, including setting attribute information of physical, control and service interfaces;

the issuing unit is used for: binding the pseudo wire PW by the emulation service, and issuing the data to the equipment.

On the basis of the above technical solution, the first configuration unit is configured to:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the simulation mode comprises a circuit simulation service CES and a circuit simulation CEP in a packet-switched network, wherein the CES realizes an E1 signal through an unstructured simulation technology or realizes the encapsulation of a 64k signal through a structured simulation technology; the CEP realizes the VC4 signal through an unstructured simulation technology or realizes the encapsulation of the VC12 signal through a structured simulation technology;

providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64k, and for CEP simulation, the service level is CEP-VC4 or CEP-VC 12; for CES emulation, the service level is CES-E1 or CES-64 k;

filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

On the basis of the above technical solution, the automatic generation unit is configured to:

obtaining TDM ports appointed by users one by one, and judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

and completing the automatic generation of the simulation control port and the simulation service port.

On the basis of the above technical solution, the second configuration unit is configured to:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating high-order and low-order control port parameter templates on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

On the basis of the technical scheme, the issuing unit is used for:

providing a service interface on a designated node for selection by a user;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the service and the PW circuit;

and issuing the network management object data to the equipment.

Compared with the prior art, the invention has the following advantages:

(1) the invention discloses a TDM (Time Division Multiplexing) service network management automatic configuration method based on Packet Transport Network (PTN), comprising the following steps: A. configuring the basic information of the TDM service according to the user requirement, comprising: simulation mode, service level, single board, port, etc.; B. the simulation control port and the simulation service port are automatically generated, namely: automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule; C. interface parameter templating configuration, including setting attribute information of physical, control and service interfaces; D. the emulation service binds Pseudo Wires (PW) and sends data to the equipment. The invention is suitable for transmitting real-time services such as voice, video and the like carried by the traditional Time Division Multiplexing (TDM) network to a far-end scene through a Packet Transport Network (PTN) so as to realize seamless connection between the traditional TDM network and the existing PTN network. The invention provides a method for configuring TDM service quickly and intelligently for users, especially for automatic generation of network management of simulation control port and simulation service port, and template processing of interface parameter, which can effectively simplify operation, improve configuration efficiency, and significantly improve user experience.

(2) In step B, the invention automatically generates a simulated control port and a simulated service port object on the network management according to the service information specified by the user and the channelized rule of the simulated port. Compared with the prior art, the configuration of the multilayer objects is integrated into the single-layer configuration, so that the operation steps are greatly reduced, the configuration complexity is reduced, and the configuration efficiency is improved. Moreover, the automatic configuration mode does not need manual participation, ensures the integrity and the correctness of data, simplifies the complex configuration task and ensures better user perception.

(3) In the step C, the invention completes the template configuration mode of the attribute information of the three interfaces of the physical layer, the control layer and the service layer at one time, and centralizes a large amount of complex parameter configuration work for processing, thereby greatly reducing the steps of user operation, shortening the time of user configuration, increasing the flexibility of service configuration and improving the experience of users.

(4) In step D, the invention binds the real-time services such as voice and the like carried by the traditional Time Division Multiplexing (TDM) network to a Pseudo Wire (PW) and transmits the pseudo wire to a far end through a Packet Transport Network (PTN), thereby realizing the seamless connection between the traditional TDM network and the existing PTN network, reducing the service cost, fully utilizing the PTN network resources based on MPLS and meeting the requirements of new service forms.

Drawings

FIG. 1 is a schematic diagram of a seamless connection between a TDM network and a PTN network;

fig. 2 is a schematic diagram of interface models of three layers of physical, control and service of SDH and PDH simulation board ports;

fig. 3 is a flowchart of a TDM service network management automatic configuration method based on a packet transport network in an embodiment of the present invention;

FIG. 4 is a flowchart illustrating the detailed steps of step A;

FIG. 5 is a flowchart illustrating the detailed steps of step B.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

With the rapid development of communication network technology, the whole original TDM communication network architecture is impacted, and the convergence of TDM services to packet networks is realized due to bandwidth utilization and price advantages. The new traffic profile requires a smooth transition from traditional telecommunications traffic to data network traffic while protecting the original TDM equipment. The solution idea is as follows: the TDM basic group signals such as E1 and the like are packaged according to a pseudo wire emulation protocol, and then transmitted on an MPLS network after carrying an L2 layer header, so as to realize the transparent transmission of the time division multiplexing service based on a packet transmission network.

Referring to fig. 1, a schematic diagram of seamless connection between a TDM network and a PTN network is shown. The user signals are accessed from conventional TDM network devices, including SDH (synchronous digital Hierarchy) devices and PDH (Plesiochronous digital Hierarchy) devices. The STM-N, E1 fixed-speed signals output by the TDM network equipment are encapsulated into packet signals through a structured-Aware simulation (Structure-Aware) technology and an unstructured-Agnostic simulation (Structure-Agnostic) technology, and then the packet signals are transmitted through the PTN network equipment.

Referring to fig. 2, interface models on three layers of physical, control and service of SDH and PDH simulation board ports are respectively given.

In an SDH simulation single-board interface model, the speed of a physical layer interface comprises STM-1, STM-4, STM-16 and STM-64, and is uniquely represented by four key values of a frame, a slot, a sub-card and a port number; and two simulation modes of CES and CEP are supported, the former can realize the encapsulation of an E1 signal through an unstructured simulation technology or a 64k signal through a structured simulation technology, and the latter can realize the encapsulation of a VC4 signal through an unstructured simulation technology or a VC12 signal through a structured simulation technology. The control layer interface comprises three types of simulation control ports of high order, low order and E1 generated by channelization, wherein the rate level of the high order control port is VC4 and is uniquely represented by five key values of a frame, a slot, a sub card, a port number and VC4 numbers; the rate level of the low-order control port is VC12 and is uniquely represented by six key values of a frame, a slot, a daughter card, a port number, a VC4 number and a VC12 number; considering the one-to-one correspondence between the E1 control ports and the lower-level control ports, the control ports are managed by being incorporated into the lower-level control port objects for the sake of simplifying the processing. The service layer interface is divided into four types of simulation service ports including a CEP-VC4, a CEP-VC12, a CES-E1 and a CES-64k, wherein the CEP interface is uniquely represented by six key values of a frame, a slot, a daughter card, a port number, a VC4 number and a VC12 number, and it needs to be specially noted that the value of the VC12 number is always 0 for the CEP-VC4 interface; the CES interface is uniquely represented by seven key values, namely a frame, a slot, a daughter card, a port number, a VC4 number, an E1 number (corresponding to a VC12 number one by one), and a slot group number (used for representing a 64k signal), and it should be specially noted that, for the CES-E1 interface, the value of the slot group number is always 0.

In a PDH simulation single board interface model, the rate of a physical layer interface only has E1, which is uniquely represented by four key values of a frame, a slot, a daughter card and a port number; and only supports a simulation mode of CES, the E1 signal can be realized by an unstructured simulation technology or the package of the 64k signal can be realized by a structured simulation technology. The control layer interface rate level is E1, and in consideration of the one-to-one correspondence relationship between the control layer interface rate level and the physical ports, the control layer interface rate level is incorporated into the physical layer interface object for management in order to simplify the processing. The service layer interface is divided into two types of simulation service ports, namely a CES-E1 interface and a CES-64k interface, the CES interface is uniquely represented by five key values, namely a frame, a slot, a daughter card, a port number and a time slot group number (used for representing a 64k signal), and it needs to be specially noted that the value of the time slot group number is always 0 for the CES-E1 interface.

Referring to fig. 3, an embodiment of the present invention provides a method for TDM service network management automatic configuration based on a packet transport network, including the following steps:

step A, configuring the basic information of the TDM service according to the user requirement, comprising: simulation mode, service level, single board, port, etc.;

step B, the simulation control port and the simulation service port are automatically generated, namely: automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule;

step C, interface parameter templating configuration, which comprises setting attribute information of three layer interfaces of physics, control and service;

and D, binding a Pseudo Wire (PW) by the simulation service, and issuing the data to the equipment.

The step A comprises the following steps:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the Emulation mode includes CES (Circuit Emulation Service) and CEP (Circuit Emulation over Packet in Packet-switched network). The former can realize the E1 signal by an unstructured simulation technology or realize the encapsulation of a 64k signal by a structured simulation technology; and the latter can realize the encapsulation of the VC4 signal through an unstructured simulation technology or the VC12 signal through a structured simulation technology.

Providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64 k. For CEP emulation, the traffic class may be CEP-VC4 or CEP-VC 12; for CES emulation, the service level may be CES-E1 or CES-64 k.

Filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

The step B comprises the following steps:

obtaining TDM ports appointed by users one by one, judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

and completing the automatic generation of the simulation control port and the simulation service port.

The step C comprises the following steps:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating a high-order control port parameter template including an E1 control port on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

The step D comprises the following steps:

providing a TDM service interface on a designated node for user selection;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the TDM service and the PW circuit;

and acquiring the simulation port objects of the TDM service source and the host end, and issuing the network management object data to the equipment.

The embodiment of the invention also discloses a system for TDM service network management automatic configuration based on a packet transport network, which comprises a first configuration unit, an automatic generation unit, a second configuration unit and a sending unit, wherein:

the first configuration unit is used for: configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port;

the automatic generation unit is used for: automatically generating a simulated control port and a simulated service port object on a network manager according to service information specified by a user and a simulation port channelization rule;

the second configuration unit is used for: interface parameter templating configuration, including setting attribute information of physical, control and service interfaces;

the issuing unit is used for: binding the pseudo wire PW by the emulation service, and issuing the data to the equipment.

The first configuration unit is used for:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the simulation mode comprises circuit simulation service CES and circuit simulation CEP in a packet-switched network, wherein the CES realizes an E1 signal through an unstructured simulation technology or realizes the encapsulation of a 64k signal through a structured simulation technology; the CEP realizes the VC4 signal through an unstructured simulation technology or realizes the encapsulation of the VC12 signal through a structured simulation technology;

providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise the levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64k, and for CEP simulation, the service level is CEP-VC4 or CEP-VC 12; for CES emulation, the service level is CES-E1 or CES-64 k;

filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

The automatic generation unit is used for:

obtaining TDM ports appointed by users one by one, and judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

and completing the automatic generation of the simulation control port and the simulation service port.

The second configuration unit is used for:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating a high-order control port parameter template including an E1 control port on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

The issuing unit is used for:

providing a TDM service interface on a designated node for user selection;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the TDM service and the PW circuit;

and acquiring the simulation port objects of the TDM service source and the host end, and issuing the network management object data to the equipment.

In actual operation, in order to enable the network manager to automatically generate the simulation control port and the simulation service port accurately in batch, a user needs to configure basic information of the simulation mode, the service level, the simulation board, the port and the like of the TDM service.

Referring to fig. 4, step a may include the steps of:

step A1, according to the user requirement, appointing the source and the destination node of the TDM service and the simulation mode CES or CEP, and turning to step A2;

step A2, judging whether the simulation mode is CES, if yes, turning to step A3; if not, the step A4 is carried out;

step A3, under the CES simulation mode, only supporting channelizing SDH (Synchronous digital hierarchy) and PDH physical ports to E1 or 64k two rate levels, so as to provide service levels E1 and 64k for users to select, and then, the step A5 is carried out;

step A4, in CEP simulation mode, only supporting the channel of SDH physical port to VC4 or VC12 two speed layers, so providing service level VC4, VC12 for user to select, and going to step A9;

step A5, acquiring PDH and SDH simulation single board ports on user designated nodes one by one, and judging whether the acquisition is successful, if so, turning to step A6; if not, the step A13 is carried out;

step A6, judging whether the port is a PDH port, if so, switching to step A7; if not, the step A8 is carried out;

step A7, judging whether the port has idle resources meeting the appointed service level, if yes, turning to step A11; if not, the step A12 is carried out;

step A8, judging whether the port is configured with the simulation mode of CEP, if yes, turning to step A5; if not, the step A7 is carried out;

step A9, acquiring SDH simulation single board ports on user designated nodes one by one, and judging whether the acquisition is successful, if yes, turning to step A10; if not, the step A13 is carried out;

step A10, judging whether the port is configured with a simulation mode of CES, if yes, turning to step A9; if not, the step A7 is carried out;

step A11, adding the port into the resource data list, and turning to step A12;

step A12, judging whether the simulation mode is CES, if yes, turning to step A5; if not, the step A9 is carried out;

step A13, judging whether the resource data list is empty, if yes, turning to step A16; if not, the step A14 is carried out;

step A14, providing the TDM port meeting the requirement after filtering for the user to select, and turning to step A15;

step A15, completing the basic information configuration of TDM service;

and step A16, reporting an error and returning to prompt the user that the TDM port meeting the requirements is not acquired.

The simulation control port in the step B is a middle layer interface generated after channelizing the SDH and PDH simulation single board ports. For the former, the control ports comprise three different rate levels of high order, low order and E1; and for the latter, only E1 is a rate level control port. It should be noted that, in order to simplify the processing procedure, the E1 control port on the SDH port is merged into the lower-order control port for management, and the E1 control port on the PDH port is merged into the physical port for management.

The simulation service port in the step B is a final interface generated after unstructured or structured simulation is performed on the simulation control port. For a high-order control port, a CEP-VC4 interface can be generated by unstructured simulation, and a low-order control port can also be generated by structuralization; for a low-order control port, a CEP-VC12 interface or a CES-E1 interface can be generated through unstructured simulation, and a CES-64k interface can also be generated through structured simulation; for the control port of E1, a CES-E1 interface can be generated by unstructured simulation, and a CES-64k interface can also be generated by structured simulation.

In actual operation, the simulated control port and the simulated service port object can be automatically generated on the network manager according to the service basic information specified by the user and the simulation port channelization rule, so that the multi-layer object configuration is integrated into the single-layer configuration, the configuration complexity is greatly reduced, and the configuration efficiency is improved.

Referring to fig. 5, step B may include the steps of:

step B1, obtaining TDM ports appointed by the user one by one, judging whether the obtaining is successful, if yes, switching to step B2; if not, the step B13 is carried out;

step B2, judging whether the port is an SDH simulation single board port, if yes, switching to step B3; if not, the step B10 is carried out;

step B3, channelizing the SDH port, automatically generating a high-order control port, and turning to step B4;

step B4, judging whether the simulation mode is CEP and whether the service level is VC4, if yes, turning to step B5; if not, the step B6 is carried out;

step B5, performing unstructured simulation on the high-order control port, automatically generating a CEP-VC4 simulation service port, and turning to step B1;

b6, structuring the high-order control port, automatically generating a low-order control port, and turning to the step B7;

step B7, judging whether the service level is VC12 or E1, if yes, turning to step B8; if not, the step B9 is carried out;

step B8, performing unstructured simulation on the low-order control port, automatically generating a CEP-VC12 or CES-E1 simulation service port, and turning to step B1;

step B9, performing structured simulation on the low-order control port, automatically generating a CES-64k simulation service port, and turning to step B1;

step B10, judging whether the service level is E1, if so, switching to step B11; if not, the step B12 is carried out;

step B11, performing unstructured simulation on the PDH port, automatically generating a CES-E1 simulation service port, and turning to step B1;

step B12, performing structured simulation on the PDH port, automatically generating a CES-64k simulation service port, and turning to step B1;

and step B13, completing the automatic generation of the simulated control port and the service port.

In actual operation, in order to complete the attribute information configuration of the physical, control and service interfaces at one time, shorten the time for user configuration and increase the flexibility of service configuration, the method is implemented by adopting an interface parameter templating mode, namely: the method comprises the steps of configuring PDH (including an E1 control port) and SDH port parameter templates on a physical layer, applying high-order and low-order (including an E1) control port parameter templates on the control layer and CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on a service layer to corresponding interface objects, and accordingly achieving the purpose of processing a large amount of complex and complicated parameter configuration work in a centralized mode, greatly reducing the effect of user operation steps and achieving better user experience.

Step C may comprise the steps of:

step C1, providing TDM port under the appointed node, high-order and low-order control ports generated automatically by channelization, CES and CEP service ports generated automatically by simulation for user selection, and going to step C2;

step C2, acquiring the configured interface parameter templates of the physical, control and service layers one by one, and judging whether the user requirements are met, if so, turning to step C9; if not, the step C3 is executed;

step C3, creating a PDH port (including E1 control port) parameter template on the physical layer, including: e1 type, clock recovery mode, clock recovery source selection, and then step C4 is performed;

step C4, creating an SDH port parameter template on the physical layer, including: j0 overhead bytes, go to step C5;

step C5, creating a high-order control interface parameter template on the control layer, including: mapping the mode, J1 overhead bytes and C2 overhead bytes, and turning to the step C6;

step C6, creating a low-level (including E1) control port parameter template on the control level, comprising: e1 type, clock recovery mode, clock recovery source selection, J2 overhead byte, V5 overhead byte, and then step C7 is carried out;

step C7, creating CEP-VC4 and CEP-VC12 interface parameter templates on the service level, including: link enabling, number of encapsulated bytes, clock recovery mode, cache configuration enabling, cache time, RTP enabling, RTP content modification enabling, RTP pt value, reference clock frequency, synchronization source identifier SSRC, MAC destination address, DBA enabling, and then go to step C8;

step C8, creating CES-E1 and CES-64k interface parameter templates on the service level, including: link enabling, number of encapsulation frames, cache configuration enabling, cache time, RTP enabling, RTP content modification enabling, RTP pt value, reference clock frequency, synchronization source identifier SSRC, MAC destination address, and go to step C9;

and step C9, applying different kinds of parameter templates to the corresponding interface objects to complete the configuration of the interface attributes.

In actual operation, real-time services such as voice and the like carried by a traditional Time Division Multiplexing (TDM) network are bound to a Pseudo Wire (PW) and transmitted to a far end through a Packet Transport Network (PTN), so that seamless connection between the traditional TDM network and the existing PTN network is realized, the service cost is reduced, and the PTN network resources based on MPLS are fully utilized.

Step D may include the steps of:

step D1, providing TDM service interface on the appointed node for user to select, and going to step D2;

step D2, obtaining PW circuit on the interface single board, filtering out PW circuit list with enough bandwidth to bear TDM service through comparing with interface rate, for user to select, and going to step D3;

d3, completing the binding of the TDM service and the PW circuit, and turning to the step D4;

and D4, acquiring the simulation port objects of the TDM service source and the host end, and issuing the network management object data to the equipment.

Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention, provided they are within the scope of the claims of the present invention and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims (8)

1. A TDM service network management automatic configuration method based on packet transport network is characterized in that the method comprises the following steps:

A. configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port;

B. according to the business information appointed by the user and the simulation port channelizing rule, a simulation control port and a simulation business port object are automatically generated on a network manager, and the method specifically comprises the following steps:

obtaining TDM ports appointed by users one by one, and judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

completing the automatic generation of a simulation control port and a simulation service port;

C. interface parameter templating configuration, including setting attribute information of physical, control and service interfaces;

D. binding the pseudo wire PW by the emulation service, and issuing the data to the equipment.

2. The method for TDM service network management automatic configuration based on packet transport network according to claim 1, characterized in that: the step A comprises the following steps:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the simulation mode comprises a circuit simulation service CES and a circuit simulation CEP in a packet-switched network, wherein the CES realizes an E1 signal through an unstructured simulation technology or realizes the encapsulation of a 64k signal through a structured simulation technology; the CEP realizes the VC4 signal through an unstructured simulation technology or realizes the encapsulation of the VC12 signal through a structured simulation technology;

providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64 k;

filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

3. The method for TDM service network management auto-configuration based on packet transport network according to claim 2, characterized in that: the step C comprises the following steps:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating high-order and low-order control port parameter templates on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

4. The method for TDM service network management auto-configuration based on packet transport network according to claim 3, characterized in that: the step D comprises the following steps:

providing a service interface on a designated node for selection by a user;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the service and the PW circuit;

and issuing the network management object data to the equipment.

5. A TDM service network management automatic configuration system based on a packet transport network is characterized in that the system comprises a first configuration unit, an automatic generation unit, a second configuration unit and a sending unit, wherein:

the first configuration unit is used for: configuring basic information of a time division multiplexing TDM service according to user requirements, wherein the basic information comprises the following steps: simulation mode, service level, single board and port;

the automatic generation unit is used for: according to the business information appointed by the user and the simulation port channelizing rule, a simulation control port and a simulation business port object are automatically generated on a network manager, and the method specifically comprises the following steps:

obtaining TDM ports appointed by users one by one, and judging whether the port is a Synchronous Digital Hierarchy (SDH) port,

if yes, channelizing the port, automatically generating a high-order control port, and performing unstructured simulation on the high-order control port according to a simulation mode and a service level to generate a CEP-VC4 interface; or after the low-order control port is generated in a structured mode, a CEP-VC12 interface or a CES-E1 interface is generated in an unstructured simulation mode; or generating a CES-64k interface by structured simulation;

if not, according to the service level, generating a CES-E1 interface by the unstructured simulation of the port or generating a CES-64k interface by the structured simulation;

completing the automatic generation of a simulation control port and a simulation service port;

the second configuration unit is used for: interface parameter templating configuration, including setting attribute information of physical, control and service interfaces;

the issuing unit is used for: binding the pseudo wire PW by the emulation service, and issuing the data to the equipment.

6. The system for TDM service network management auto-configuration based on packet transport network according to claim 5, wherein: the first configuration unit is configured to:

according to the user requirements, appointing a source node, a destination node and a simulation mode of the TDM service; the simulation mode comprises a circuit simulation service CES and a circuit simulation CEP in a packet-switched network, wherein the CES realizes an E1 signal through an unstructured simulation technology or realizes the encapsulation of a 64k signal through a structured simulation technology; the CEP realizes the VC4 signal through an unstructured simulation technology or realizes the encapsulation of the VC12 signal through a structured simulation technology;

providing corresponding service levels for a user to select according to the specified simulation mode; the service levels comprise levels of four different rate levels, namely CEP-VC4, CEP-VC12, CES-E1 and CES-64k, and for CEP simulation, the service level is CEP-VC4 or CEP-VC 12; for CES emulation, the service level is CES-E1 or CES-64 k;

filtering out available port resources on the simulation single board according to the simulation mode and the service level, and selecting the port resources for a user;

and completing the basic information configuration of the TDM service.

7. The system for TDM service network management auto-configuration based on packet transport network according to claim 6, wherein: the second configuration unit is configured to:

acquiring the configured interface parameter templates of the three layers of physics, control and service one by one, judging whether the user requirements are met,

if so, applying different types of parameter templates to corresponding interface objects to complete interface attribute configuration;

if not, creating an SDH port parameter template on the physical layer and a plesiochronous digital PDH including an E1 control port; creating high-order and low-order control port parameter templates on a control layer; creating CEP-VC4, CEP-VC12, CES-E1 and CES-64k interface parameter templates on the service level; and applying different kinds of parameter templates to corresponding interface objects to complete interface attribute configuration.

8. The system for TDM service network management auto-configuration based on packet transport network according to claim 7, wherein: the issuing unit is used for:

providing a service interface on a designated node for selection by a user;

obtaining a PW circuit on an interface single board, and filtering out a PW circuit list with bandwidth enough to bear TDM services through comparison with interface rate for a user to select;

completing the binding of the service and the PW circuit;

and issuing the network management object data to the equipment.

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