CN114050885B - Convergence service channel cutting-over method based on POS optical port - Google Patents

Abstract

The invention provides a POS optical port-based convergent service channel cutover method, which checks the port and service of the SDH system, and determines that the service cutover mode is first the child node and then the convergent node; at the service convergent node, the new equipment and In the way of connecting the optical path of the original equipment, the SDH time slot is opened, and the original equipment is used at the service landing site; at the sub-node, the original equipment is removed and the new equipment is installed, and the service landing site is finally adjusted to the new equipment; at the convergence node, the original equipment is connected Carry out time slot pass-through between the board and the landing board, and check that the business is running normally; judge whether the cutover is to the last sub-node, if not, repeat the cutover of the sub-node; The fiber is adjusted from the original equipment to the new equipment. The invention effectively reduces the interruption duration caused by service levels at all levels, and improves the reliability of bearing services.

Description

A POS Optical Port-Based Cutover Method for Aggregation Service Channels

technical field

The invention belongs to the technical field of SDH optical transmission systems, and in particular relates to a POS optical port-based convergence service channel cutover method.

Background technique

The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

SDH (Synchronous Digital Hierarchy, synchronous digital system) is an optical communication technology system used to transmit digital signals. The SDH system operates stably, has good adaptability to optical cable conditions, and has abundant overhead bytes for system operation conditions. Surveillance is currently widely used in power, finance and other fields.

Common SDH system brands include Ericsson, Huawei, FiberHome, ZTE, Alcatel, etc. With the change of equipment manufacturers in recent years, the market share of Ericsson, Alcatel and other equipment in China has decreased year by year, and they have gradually withdrawn from the Chinese market. SDH equipment is facing the status quo of insufficient spare parts and aging equipment, and the reliability of carrying services is gradually declining. During the operation of the SDH optical transmission system, due to equipment aging, equipment model replacement, etc., it is often accompanied by equipment brand and model changes. The unavoidable problem in the change process is the smooth and stable cutover of the services carried by the original equipment. , that is to say, adjust the service carried on the original SDH equipment to be carried on the new SDH equipment.

When the service carried by SDH equipment is cut over, it will inevitably lead to service interruption, and the service interruption time will increase exponentially with the increase of the number of service nodes. Long service interruption time is not allowed. In service cutover, the point-to-point leased line service only involves two sites. By wiring in advance, the interruption time of service cutover can be controlled within 1 minute. When the aggregation service of the POS optical port involves many sites, it is impossible to realize the construction of all sites at the same time. Therefore, it is necessary to cut over each site. The entire aggregation service is interrupted from the first site cutover until all nodes are cut over. After the recovery is completed, the interruption time caused by the business cutover may last for several weeks, which cannot meet the requirements of the power field for business interruption time.

At the converging node where the POS optical port aggregates services, the services from all sub-nodes are aggregated to the same POS optical port, and the optical port reaches the control device through network switches and other equipment. Since the control device has a single port, the converging node does not have the ability to share the load. Business capabilities, and if the aggregation node reconfigures the switch when each sub-node is adjusted, a lot of manpower and material resources will be wasted.

At the sub-nodes where the POS optical port converges services, due to the limitation of the equipment room space, it is often not possible to directly assemble new cabinets and install new equipment.

Contents of the invention

In order to solve the above problems, the present invention proposes a POS optical port-based aggregation service channel cutover method. The present invention handles the situation that the aggregation service involves many sites and the cutover interruption time is long, effectively reducing the The resulting interruption time improves the reliability of bearing services.

According to some embodiments, the present invention adopts the following technical solutions:

A method for cutover of converged service channels based on POS optical ports, comprising the following steps:

(1) Check the ports and services of the SDH system, and determine that the service cutover mode is the child node first, and then the convergence node;

(2) At the service convergence node, connect the new equipment with the original equipment through optical path, open up the SDH time slot, and use the original equipment at the service landing point;

(3) At the sub-node, remove the original equipment and install new equipment, and finally adjust the business landing site to the new equipment;

(4) Perform time slot pass-through between the docking board and the landing board of the original equipment of the aggregation node, and check that the business is running normally;

(5) judge whether to cut over to the last child node, if not, repeat step (3) to step (4), if so, cut over and connect the last child node;

(6) Adjust the landing point at the aggregation node at one time, and adjust the service tail fiber from the original equipment to the new equipment.

As an optional implementation mode, it also includes step (7) after adjusting the connecting optical path, testing the operation of the service. If the service is not running normally, it is necessary to re-adjust the connecting time slot of the convergence point.

As an optional implementation manner, checking ports and services of the SDH system includes checking services corresponding to different time slots of the POS optical port.

As an optional implementation manner, both the new equipment and the original equipment are SDH equipment.

As an optional implementation manner, the devices used by the convergence node and the sub-nodes all conform to the 3-7-3 multiplexing mechanism of SDH.

As an optional implementation mode, the aggregation node is connected first, and then the sub-node cutover is performed, and the bandwidth of the connected optical path is selected according to the bandwidth of the original landing optical interface board of the aggregation service.

As an optional implementation manner, in the step (3), new equipment is installed in the original cabinet.

As an optional implementation, in the step (3), during the period from the dismantling of the original equipment to the commissioning of the new equipment, temporarily adjust the service location to other equipment in the same computer room.

As an optional implementation manner, the cutover of each child node is completed sequentially.

As an optional implementation, in the step (4), after the optical path of the aggregation node is docked, according to the time slot used by the original service, the crossover method is directly modified, and the time slot is connected between the optical interface board and the service landing optical interface board The time slots in between are punched through.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention makes full use of the 3-7-3 multiplexing structure of the SDH standard to reduce the long-term service interruption caused by the cutover of the convergence service, shorten the original interruption time to the pigtail adjustment time, and greatly guarantee the reliability of service operation .

2. The present invention utilizes the old original SDH equipment cabinets by adjusting the location of the service at the sub-nodes, and does not need to assemble new cabinets, saving a lot of manpower and material resources.

3. The present invention is applicable to the field of SDH optical transmission system operation and maintenance, and provides a cutover method for service cutover occurring in the SDH system operation and maintenance process, which improves the one-time success rate of service cutover.

4. The POS optical port docking method used in the present invention makes it unnecessary to adjust the service equipment of the convergence node during the service cutover process, which reduces the failure rate of the service channel.

5. The present invention does not require all stations to be constructed at the same time, and the service cutover of each substation only affects the operation of the service of this substation, and does not affect the operation of other substations.

6. In the present invention, during the period from the removal of the original SDH equipment to the start of the new SDH equipment, the service location is temporarily adjusted to be carried by other SDH equipment in the same computer room, effectively reducing the interruption time caused by service cutover.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

Figure 1 is a structural diagram of the adjustment of the aggregation service channel based on the POS optical port;

Fig. 2 is a schematic diagram of time slot docking of the aggregation node;

Figure 3 is a diagram of the cutover mode of the aggregation service channel based on the POS optical port;

Fig. 4 is a schematic diagram of aggregation services.

Detailed ways:

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

A POS optical interface-based aggregation service channel cutover method. At the service aggregation node, the SDH time slot is opened by connecting the new SDH equipment with the original SDH equipment, and the original equipment is still used at the service landing point. By adjusting the landing point, the node removes the original equipment and installs new equipment in the original cabinet. Finally, the business landing site is adjusted to the new equipment. Finally, the service cutover can be completed by adjusting the landing place at the aggregation node at one time. The interruption time is greatly reduced, and the workload of business cutover is reduced.

The concrete steps of this method are:

Step 1: Complete the original SDH equipment port and service check, mainly the services corresponding to different time slots of the POS optical port;

Step 2: Compile the business cutover method list, and specify the cutover method as the child node first, and then the aggregation node;

Step 3: Connect the new SDH equipment with the POS optical path of the original SDH equipment at the aggregation node;

Step 4: Carry out temporary adjustment of the sub-node business, and change the business landing point to other equipment in the sub-node computer room;

Step 5: Subnode completes equipment replacement, removes the original equipment, and installs new SDH equipment;

Step 6: After the new device of the child node is powered on, configure the service and adjust the service landing point to the new SDH device after the channel is correct;

Step 7: Through the operation of the network management, perform time slot pass-through between the docking board and the landing board of the original equipment of the aggregation node, and confirm that the business is running normally after the pass-through.

Step 8: Determine whether to cut over to the last child node, if not, repeat steps 4 to 7, if yes, cut over the last child node.

Step 9: The aggregation node adjusts the POS connection optical path, and adjusts the service tail fiber from the original SDH equipment to the new SDH equipment.

Step 10: After adjusting the connection optical path, test the operation of the service. If the service is not running normally, re-adjust the connection time slot of the convergence point.

As a typical embodiment, as shown in FIG. 1 , the overall structure of the system is divided into the following parts, which are the aggregation node and the sub-nodes. There is only one aggregation node, and there can be any number of sub-nodes according to business requirements. At the aggregation node, the optical path is first connected, and the service landing point remains unchanged. Next, the service adjustment from sub-node 1 to sub-node N is remembered. At each sub-node, the service landing point is adjusted from the original SDH equipment to other SDH equipment in the station. Finally, adjust the way to the new SDH equipment to realize the cutover of the sub-nodes and fully utilize the old cabinets. Finally, at the aggregation node, adjust the service landing port from the A port of the original SDH equipment to the C port of the new SDH equipment. Complete the cutover of the entire convergence service at one time.

As shown in Figure 2, on the original SDH equipment at the aggregation node, add an optical interface board for time slot connection, and then use the time slot connection optical interface board to open the connection optical path from the original SDH equipment to the new SDH equipment to aggregate services The landing point of the point should be connected to the optical path, and then the crossover method can be directly modified through the network management system to pass through the time slot between the time slot docking optical interface board and the service landing optical interface board. It is necessary to adjust the landing point one by one along with the cutover of the substation, and only need to adjust the pigtail at one time for the last time.

As shown in Figure 3, the whole process of the rapid cutover method of the aggregation channel based on the POS optical port, after completing the check of the time slot of the aggregation point and the service usage, compiles the service adjustment method sheet, and first activates the aggregation point on site according to the method sheet Then carry out the service cutover of the sub-nodes one by one. The sub-nodes use the method of modifying the landing point to realize the reuse of the original cabinet. The channel cutover of aggregation services can be completed.

As shown in Figure 4, it is a schematic diagram of the aggregation service. The aggregation service is different from the private line service. The aggregation service convergence point receives all sub-node service data and connects to the service equipment through a unified port.

In this embodiment, the SDH equipment used by the aggregation node and the sub-nodes conforms to the SDH 3-7-3 multiplexing mechanism, and the new SDH equipment and the original SDH equipment may be of the same brand or different brands.

In this embodiment, the interconnection optical path of the aggregation node should be completed before the cutover of the child nodes, and the bandwidth of the interconnection optical path should be selected according to the bandwidth of the original landing optical interface board of the aggregation service. After the interconnection optical path is opened, a test should be performed first to ensure that the data can pass.

In this embodiment, the adjustment of sub-nodes fully considers the problem of insufficient space in the equipment room. New SDH equipment is installed after the original SDH equipment is removed, and the old SDH equipment cabinets are used without reassembling the cabinets.

In this embodiment, in order to reduce the length of interruption caused by service cutover, during the period from the removal of the original SDH equipment to the start of the new SDH equipment, the service landing point is temporarily adjusted to be carried by other SDH equipment in the same computer room.

In this embodiment, all sites do not need to be constructed at the same time, and the service cutover of each substation only affects the operation of the service of the substation, and does not affect the operation of other substations. After the optical path of the aggregation node is connected, according to the time slot used by the original service, through the time slot between the service landing optical interface board and the optical interface board of the optical path connection, the aggregation node does not need to be adjusted synchronously during the child node cutover process.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (10)

1. A method for cutover of converged service channels based on POS optical port, is characterized in that: comprise the following steps: (1) Check the ports and services of the SDH system, and determine that the service cutover mode is the child node first, and then the convergence node; (2) At the service convergence node, connect the new equipment with the original equipment through optical path, open up the SDH time slot, and use the original equipment at the service landing point; (3) At the sub-node, remove the original equipment and install new equipment, and finally adjust the business landing site to the new equipment; (4) Perform time slot pass-through between the docking board and the landing board of the original equipment of the aggregation node, and check that the business is running normally; (5) judge whether to cut over to the last child node, if not, repeat step (3) to step (4), if so, cut over and connect the last child node; (6) Adjust the landing point at the aggregation node at one time, and adjust the service tail fiber from the original equipment to the new equipment. 2. A kind of method for cutover of converged service channels based on POS optical ports as claimed in claim 1, characterized in that: after the step (7) is adjusted to connect the optical path, test the service operation situation, if the service operation is not normal, need to Readjust the docking time slot of the rendezvous point. 3. a kind of method for cutover of converged service channel based on POS optical port as claimed in claim 1, it is characterized in that: carrying out port and business checking to SDH system comprises checking the business corresponding to different time slots of POS optical port respectively. 4. A method for cutover of converged service channels based on POS optical ports as claimed in claim 1, characterized in that: both the new equipment and the original equipment are SDH equipment. 5. A method for cutover of convergent service channels based on POS optical ports as claimed in claim 1, characterized in that: the devices used by the convergent node and the sub-nodes all conform to the 3-7-3 multiplexing mechanism of SDH. 6. A kind of method for cutover of aggregation service channel based on POS optical port as claimed in claim 1, it is characterized in that: first carry out the docking of aggregation node, then carry out the cutover of sub-nodes, according to the original location of the aggregation service on the optical interface board Select the bandwidth of the connecting optical path for the bandwidth. After the connecting optical path is opened, it should be tested first to ensure that the data passes. 7. A method for cutover of converged service channels based on POS optical ports as claimed in claim 1, characterized in that: in the step (3), new equipment is installed in the original cabinet. 8. A method for cutover of converged service channels based on POS optical ports as claimed in claim 1, characterized in that: in the step (3), during the period from the removal of the original equipment to the commissioning of the new equipment, the service landing point is temporarily adjusted to other devices in the same computer room. 9. A method for cutover of convergent service channels based on POS optical ports as claimed in claim 1, characterized in that: the cutover of each sub-node is completed sequentially. 10. A kind of method for cutover of aggregation service channel based on POS optical port as claimed in claim 1, it is characterized in that: in the described step (4), after the optical path of the aggregation node is docked, according to the time slot used by the original service, adopt Directly modify the crossover mode, and pass through the time slot between the time slot docking optical interface board and the service landing optical interface board.

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