CN114050885A - A fast cutover method of converged service channel based on POS optical port - Google Patents
A fast cutover method of converged service channel based on POS optical port Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
- H04Q2011/0045—Synchronisation
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Abstract
本发明提供了一种基于POS光口的汇聚业务通道快速割接方法，对SDH系统进行端口和业务核对，确定业务割接方式为先子节点，后汇聚节点；在业务汇聚节点，对新设备与原设备进行光路对接的方式，将SDH时隙打通，业务落地点使用原设备；在子节点，拆除原设备并安装新设备，将业务落地点最终调整至新设备；在汇聚节点原设备的对接板卡和落地板卡之间进行时隙穿通，并检验业务运行正常；判断是否割接至最后一个子节点，若不是，重复子节点割接；在汇聚节点一次性调整落地点，将业务尾纤从原设备调整至新设备。本发明有效降低了业务各级导致的中断时长，提高了承载业务的可靠性。
The invention provides a fast cutover method for a converged service channel based on a POS optical port. The SDH system is checked for ports and services, and the service cutover mode is determined to be the first child node and then the converged node; at the service converged node, the new equipment By connecting the optical path with the original equipment, the SDH time slot is opened, and the original equipment is used for the service landing point; at the sub-node, the original equipment is removed and new equipment is installed, and the service landing point is finally adjusted to the new equipment; Connect the time slot between the docking board and the landing board, and check that the service is running normally; determine whether the cutover is made to the last sub-node; if not, repeat the cutover of the sub-node; Pigtails are adjusted from the original equipment to the new equipment. The invention effectively reduces the interruption duration caused by different levels of services, and improves the reliability of bearing services.
Description
Technical Field
The invention belongs to the technical field of SDH optical transmission systems, and particularly relates to a rapid cut-over method for a convergence service channel based on a POS optical port.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
SDH (Synchronous Digital Hierarchy) is an optical communication technology system for transmitting Digital signals, and has stable operation, good adaptability to the condition of optical cables, and abundant overhead bytes for monitoring the operation condition of the system, and is currently widely applied in the fields of electric power, finance and the like.
Common SDH system brands include Ericsson, Huashi, Beacon, Zhongxing, Alcate and the like, along with the change of equipment manufacturers in recent years, the occupation rate of the Ericsson, the Alcate and other equipment in the Chinese market is reduced year by year and gradually quits the Chinese market, and the existing SDH equipment faces the current situations of insufficient spare parts and ageing of the equipment, so that the reliability of the load-bearing service is gradually reduced. In the operation process of the SDH optical transmission system, due to reasons such as equipment aging and equipment model replacement, changes in equipment brand and model are often accompanied, and an inevitable problem in the change process is smooth and stable cutover of services already carried by the original equipment, that is, services carried on the original SDH equipment are adjusted to be carried on new SDH equipment.
When the service carried by the SDH equipment is cut, the service interruption is inevitably caused, and the service interruption time is exponentially increased along with the increase of the number of service nodes, in the power field where reliability is extremely high in the real time of industrial service, an excessively long service interruption time is not allowed, in service cut-over, the point-to-point private line service only involves the stations at two ends, and the interruption time of the service cut-over can be controlled within 1 minute by wiring in advance, but when the convergence service based on the POS optical port is involved, due to the fact that a plurality of stations are involved, simultaneous construction of all the stations cannot be achieved, cutting-over needs to be carried out one by one, the whole convergence service is cut-over from the first station, recovery cannot be completed until all the nodes finish cutting-over, the interruption time caused by service cutting-over can be as long as several weeks, and the requirement of the power field for service interruption time cannot be met.
In a convergent node of a POS optical port convergent service, services from all sub-nodes are converged to the same POS optical port, and the optical port reaches a control device through equipment such as a network switch, and the control device has a single port, so that the convergent node does not have the capacity of sharing the bearing service, and if the convergent node is matched with the adjustment of the sub-nodes, the convergent node reconfigures the switch when each sub-node is adjusted, and a large amount of manpower and material resources are wasted.
Due to the limitation of the machine room space, the sub-node of the POS optical port convergence service often does not have the conditions for directly assembling a new cabinet and installing new equipment.
Disclosure of Invention
The invention provides a rapid cutover method of a converged service channel based on a POS optical port, aiming at solving the problems that converged and clustered services involve more stations and the cutover interruption time is long, effectively reducing the interruption time caused by each level of the services and improving the reliability of the bearing services.
According to some embodiments, the invention adopts the following technical scheme:
a rapid cut-over method of convergence service channel based on POS optical port includes the following steps:
(1) carrying out port and service check on the SDH system, and determining that a service cutover mode is that a child node is firstly carried out and then a convergent node is carried out;
(2) at a service convergence node, the SDH time slot is opened in a mode of butt joint of a new device and an original device through a light path, and the original device is used at a service landing point;
(3) at the child node, removing the original equipment and installing new equipment, and finally adjusting the service landing point to the new equipment;
(4) carrying out time slot punch-through between a butt joint board card and a landing board card of the original equipment of the sink node, and checking that the service runs normally;
(5) judging whether to cut to the last child node, if not, repeating the steps (3) to (4), and if so, cutting to the last child node;
(6) and adjusting the landing point at the sink node once, and adjusting the service tail fiber from the original equipment to the new equipment.
As an alternative implementation, the method further includes the step (7) of testing the service operation condition after adjusting the docking optical path, and if the service operation is not normal, readjusting the docking time slot of the convergent point.
As an alternative embodiment, the port and service check of the SDH system includes checking services respectively corresponding to different time slots of the POS optical port.
As an alternative embodiment, the new device and the original device are both SDH devices.
As an alternative embodiment, the devices used by the aggregation node and the child nodes are both in accordance with the 3-7-3 multiplexing mechanism of SDH.
As an alternative implementation, the aggregation node is docked first, then the sub-node is docked, the bandwidth of the docking optical path is selected according to the bandwidth of the original terrestrial optical interface board of the aggregation service, and the docking optical path is tested first after being opened to ensure that data passes through.
As an alternative embodiment, in the step (3), new equipment is installed in the original cabinet.
As an alternative embodiment, in step (3), during the period from the original equipment being removed to the new equipment being activated, the service landing point is temporarily adjusted to other equipment in the same machine room.
As an alternative embodiment, the child node cutover sequence is completed.
As an alternative implementation, in the step (4), after the optical paths of the aggregation nodes are butted, the time slots between the time slot butted optical interface board and the service ground optical interface board are pierced through by directly modifying the intersection according to the time slots used by the original services.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention makes full use of the 3-7-3 multiplexing structure of the SDH standard, reduces the long-time service interruption caused by the cut-over of the converged service, shortens the original interruption time to the tail fiber adjustment time, and greatly ensures the reliability of service operation.
2. The invention utilizes the original SDH equipment cabinet at the child node by adjusting the service floor point, does not need to assemble a new cabinet, and saves a large amount of manpower and material resources.
3. The invention is suitable for the operation and maintenance field of the SDH optical transmission system, provides a cutting and connecting method for service cutting and connecting in the operation and maintenance process of the SDH system, and improves the one-time success rate of the service cutting and connecting.
4. The POS optical port butt joint mode used by the invention ensures that the service equipment of the sink node does not need to be adjusted along with the substation in the service cut joint process, thereby reducing the failure rate of the service channel.
5. The invention does not need to construct all the stations at the same time, and the service cutover of each substation only affects the operation of the substation service and does not affect the operation of other substations.
6. The invention temporarily adjusts the service landing point to bear the load of other SDH devices in the same machine room when the original SDH device is dismantled to the new SDH device, thereby effectively reducing the interruption time caused by service cutover.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a diagram of a POS optical port based converged service channel adaptation architecture;
FIG. 2 is a schematic diagram of sink node time slot interfacing;
FIG. 3 is a diagram of a POS optical port based convergence service channel cutover;
fig. 4 is a schematic diagram of an aggregated service.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. 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 is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
A method for quickly cutting over service channel based on POS optical port includes such steps as connecting SDH time slot to SDH original device at service convergence node by optical path butt joint, using original device at service landing point, removing original device at sub-node by adjusting landing point, installing new device in original cabinet, adjusting service landing point to new device, and adjusting landing point at convergence node.
The method comprises the following specific steps:
the method comprises the following steps: the checking of the port and the service of the original SDH equipment is completed, and the checking is mainly the services corresponding to different time slots of the POS optical port respectively;
step two: compiling a service cut-over mode list, wherein the definite cut-over mode is that a child node is firstly cut over, and then a convergent node is cut over;
step three: carrying out POS optical path butt joint of the new SDH equipment and the original SDH equipment at the sink node;
step four: carrying out temporary adjustment of the sub-node service, and changing a service landing point into other equipment in a sub-node machine room;
step five: the child node completes the equipment replacement, removes the original equipment and installs the new SDH equipment;
step six: after the new equipment of the child node is electrified, configuring the service, and adjusting the service floor point to the new SDH equipment after the channel is correct;
step seven: and through a network management operation mode, carrying out time slot penetration between the butt joint board card and the floor board card of the original equipment of the sink node, and confirming that the service runs normally after the time slot penetration.
Step eight: and judging whether to cut the last child node, if not, repeating the fourth step to the seventh step, and if so, cutting the last child node.
Step nine: and the sink node adjusts the POS butt joint light path and adjusts the service tail fiber from the original SDH equipment to the new SDH equipment.
Step ten: and after the butt joint light path is adjusted, testing the service operation condition, and if the service operation is abnormal, readjusting the butt joint time slot of the convergent point.
As a typical embodiment, as shown in fig. 1, the overall structure of the system is divided into the following parts, which are a sink node and a child node, respectively, where the sink node is unique, and the number of the child nodes can be any number according to service requirements. In the sink node, the optical path is firstly butted, the service landing point is unchanged, then the service adjustment from the subnode 1 to the subnode N is recorded, the subnode is cut over in a mode that the service landing point is adjusted from the original SDH equipment to other SDH equipment in the station at each subnode and is finally adjusted to new SDH equipment, the original cabinet is fully used, and finally, the service landing port is adjusted from the A port of the original SDH equipment to the C port of the new SDH equipment at the sink node, so that the cut over of the whole sink service can be completed at one time.
As shown in fig. 2, an optical interface board for timeslot docking is added to an original SDH device of a sink node, then the timeslot docking optical interface board opens a docking optical path from the original SDH device to a new SDH device, a landing point of a service convergence point is docked in the optical path, then the timeslot between the timeslot docking optical interface board and the service landing optical interface board is passed through by directly modifying the intersection manner by a network manager, and is directly transmitted after passing through, and the service landing point does not need to be adjusted individually by cutting along with a substation, and only the last adjustment of a tail fiber is needed.
As shown in fig. 3, in the whole process of the POS optical port-based converged channel fast cutover method, after the time slot of a convergent point and the service usage are checked, a service adjustment mode list is compiled, and on-site according to the mode list, a butt-joint optical path of the convergent point is firstly opened, then service cutover of child nodes is sequentially performed, the child nodes realize the old usage of the original cabinet by modifying the ground point, and after all the child nodes are cut over, the service ground point is once adjusted at the convergent point, and then the channel cutover of the converged service can be completed.
As shown in fig. 4, a schematic diagram of a convergence service is shown, where the convergence service is different from a dedicated line service, and a convergence service convergence point receives service data of all child nodes and is connected to a service device through a unified port.
In this embodiment, the SDH devices used by the aggregation node and the child node both conform to the 3-7-3 multiplexing mechanism of SDH, and the new SDH device may be of the same brand as or of a different brand from the original SDH device.
In this embodiment, the docking optical path of the aggregation node should be completed before the child node starts to perform the cutover, the bandwidth of the docking optical path is selected according to the bandwidth of the original terrestrial optical interface board of the aggregation service, and the docking optical path should be tested first after being opened, so as to ensure that data can pass through.
In this embodiment, the adjustment of the child node fully considers the problem of insufficient space of the machine room, and the new SDH device is installed after the original SDH device is removed, so that the old SDH device cabinet is used, and the cabinet does not need to be reassembled.
In this embodiment, to reduce the interruption time caused by service cutover, the service floor point is temporarily adjusted to be borne by other SDH devices in the same machine room while the original SDH device is removed to start the new SDH device.
In this embodiment, all the sites do not need to be constructed simultaneously, and the service cutover of each substation only affects the operation of the substation service, and does not affect the operation of other substation services. After the light paths of the convergent nodes are butted, the convergent nodes do not need to be synchronously adjusted in the process of sub-node cutting and connecting by penetrating the time slots between the service landing optical interface board and the light path butting optical interface board according to the time slots used by the original services.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may 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, and the like) 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 will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
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