CN114050885B - Convergence service channel cutting-over method based on POS optical port - Google Patents
Convergence service channel cutting-over method based on POS optical port Download PDFInfo
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- CN114050885B CN114050885B CN202111006510.6A CN202111006510A CN114050885B CN 114050885 B CN114050885 B CN 114050885B CN 202111006510 A CN202111006510 A CN 202111006510A CN 114050885 B CN114050885 B CN 114050885B
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention provides a convergence service channel cutting method based on POS optical port, which carries out port and service check on SDH system, and determines the service cutting mode as first sub-node and then convergence node; in the service convergence node, the SDH time slot is opened in a mode of carrying out optical path butt joint on the new equipment and the original equipment, and the original equipment is used at the service landing place; removing the original equipment and installing new equipment at the child node, and finally adjusting the service landing point to the new equipment; the time slot punching is carried out between the butt joint plate card and the floor plate card of the original equipment of the sink node, and the normal operation of the service is checked; judging whether to cut to the last child node, if not, repeating the child node cutting; and adjusting the landing point at one time at the sink node, and adjusting the service tail fiber from the original equipment to the new equipment. The invention effectively reduces the interruption time caused by each level of service and improves the reliability of bearing service.
Description
Technical Field
The invention belongs to the technical field of SDH optical transmission systems, and particularly relates to a convergence service channel cutting method 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 the SDH system is stable in operation, has good adaptability to the condition of optical fibers, has rich overhead bytes for monitoring the operation condition of the system, and is widely applied to the fields of electric power, finance and the like at present.
Common SDH system brands include ericsson, hua Cheng, honeycomb, zhongxing, alcatel and the like, along with the recent changes of equipment manufacturers, the occupancy of the ericsson, alcatel and the like equipment in the Chinese market is reduced year by year, the equipment gradually exits from the Chinese market, the existing SDH equipment faces the current situations of insufficient spare parts and equipment aging, and the reliability of bearing service is gradually reduced. In the operation process of the SDH optical transmission system, due to the reasons of equipment aging, equipment model replacement and the like, the change of equipment brands and models is often required, and the unavoidable problem in the change process is that the original equipment carries the smooth and stable cutting of the service, namely, the service carried on the original SDH equipment is regulated to be carried on the new SDH equipment.
When the service carried by the SDH equipment is cut over, interruption of the service is inevitably caused, the service interruption time increases exponentially along with the increase of the number of service nodes, in the electric power field with extremely high requirements on the real-time reliability of the production service, the overlong service interruption time is not allowed, in the service cutting over, the point-to-point special line service only relates to two end stations, the interruption time of the service cutting over can be controlled within 1 minute in advance by wiring, but when the convergent service based on a POS (point of sale) optical port is related, the simultaneous construction of all stations cannot be realized due to the fact that the stations are related, the cutting over is required to be carried out on one station by one, the whole convergent service is interrupted from the cutting over of the first station until the cutting over is completed by all the nodes, the interruption time caused by the service cutting over can be up to a plurality of weeks, and the requirements on the service interruption time in the electric power field can not be met.
In the sink node for converging the service at the POS optical port, the service from all the sub-nodes is converged to the same POS optical port, and the optical port reaches the control device through equipment such as a network switch, and the like.
The sub-node for converging the service at the POS optical port often does not have the conditions of directly assembling a new cabinet and installing new equipment due to the limitation of the space of a machine room.
Disclosure of Invention
In order to solve the problems, the invention provides a convergence service channel cutting-over method based on POS optical ports, which processes the conditions that convergence and clustering services relate to a plurality of sites and cutting-over interruption time is long, effectively reduces interruption time caused by each level of service and improves reliability of bearing services.
According to some embodiments, the present invention employs the following technical solutions:
a method for cutting and connecting a convergence service channel based on a POS optical port comprises the following steps:
(1) Checking ports and services of the SDH system, and determining that the service cutting-over mode is a first child node and then a sink node;
(2) In the service convergence node, the SDH time slot is opened in a mode of carrying out optical path butt joint on the new equipment and the original equipment, and the original equipment is used at the service landing place;
(3) Removing the original equipment and installing new equipment at the child node, and finally adjusting the service landing point to the new equipment;
(4) The time slot punching is carried out between the butt joint plate card and the floor plate card of the original equipment of the sink node, and the normal operation of the service is checked;
(5) Judging whether the last child node is cut or not, if not, repeating the steps (3) to (4), and if so, cutting the last child node;
(6) And adjusting the landing point at one time at the sink node, and adjusting the service tail fiber from the original equipment to the new equipment.
As an alternative implementation manner, the method further comprises the step (7) of testing the service operation condition after adjusting the docking optical path, and if the service operation is abnormal, readjusting the docking time slot of the convergence point is needed.
As an alternative implementation manner, the checking of the port and the service of the SDH system includes checking the services corresponding to different time slots of the POS optical port.
As an alternative embodiment, both the new device and the original device are SDH devices.
As an alternative implementation mode, the equipment used by the sink node and the child node are both in accordance with the 3-7-3 multiplexing mechanism of SDH.
As an alternative implementation manner, the butt joint of the sink node is firstly carried out, then the sub-node is cut and connected, the bandwidth of the butt joint light path is selected according to the bandwidth of the original land optical interface board of the sink service, and after the butt joint light path is opened, the test is carried out to ensure that the data pass.
In the step (3), as an alternative embodiment, new equipment is installed in the original cabinet.
In the step (3), during the period from the original equipment to the new equipment, the service landing point is temporarily adjusted to other equipment in the same machine room.
As an alternative embodiment, the sequence of the sub-node cutoffs is completed.
In the step (4), after the optical paths of the sink nodes are butted, the time slots between the butted optical interface board and the service-oriented optical interface board are pierced by adopting a direct modification and intersection mode according to the time slots used by the original service.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention fully utilizes the 3-7-3 multiplexing structure of SDH standard, reduces the long-time service interruption caused by the cutting-over of the convergence 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 old original SDH equipment cabinets by adjusting the service landing point at the child node, does not need to assemble a new cabinet, and saves a great amount of manpower and material resources.
3. The invention is suitable for the operation and maintenance field of SDH optical transmission systems, provides a cutting method for cutting the service in the operation and maintenance process of the SDH system, and improves the one-time success rate of the service cutting.
4. The POS optical port butt joint mode used in the invention ensures that the service equipment of the sink node does not need to be adjusted along with the substation cutting in the service cutting process, thereby reducing the fault rate of the service channel.
5. The invention does not need to construct all stations at the same time, and each substation service cutover only affects the operation of the substation service and does not affect the operation of other substation services.
6. In the invention, during the period from the dismantling of the original SDH equipment to the starting of the new SDH equipment, the service landing point is temporarily adjusted to bear the load of other SDH equipment in the machine room, thereby effectively reducing the interruption time caused by service cutting.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a block diagram of a converged service channel adjustment architecture based on POS optical ports;
FIG. 2 is a schematic diagram of sink node slot interfacing;
FIG. 3 is a view of a converged service tunnel cutover mode based on POS optical ports;
fig. 4 is a schematic diagram of aggregated traffic.
The specific embodiment is as follows:
the invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the 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 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 present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
A converging service channel cutting-over method based on POS optical port is to make optical path butt joint between SDH new equipment and SDH original equipment at service converging node to open SDH time slot, to use original equipment at service drop point, to install new equipment in original cabinet after removing original equipment at sub node by adjusting drop point, to adjust service drop point to new equipment, to adjust drop point at converging node at one time finally to finish service cutting-over, to reduce interruption time caused by service cutting-over greatly and reduce service cutting-over workload.
The method comprises the following specific steps:
step one: the checking of the original SDH equipment port and the service is completed, mainly the services corresponding to different time slots of the POS optical port respectively;
step two: a service cutting mode list is compiled, and the specific cutting mode is a first child node and then a sink node;
step three: performing 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 service of the child node, and changing the service landing point into other equipment in a child node machine room;
step five: the child node completes equipment replacement, removes the original equipment and installs new SDH equipment;
step six: after the new equipment of the child node is powered on, configuring the service, and after the channel is correct, adjusting the service landing point to the new SDH equipment;
step seven: through the network management operation mode, time slot punching is carried out between the butt joint plate card and the floor plate card of the original equipment of the sink node, and the normal operation of the service is confirmed after punching.
Step eight: judging whether to cut the last child node, if not, repeating the steps four to seven, and if so, cutting the last child node.
Step nine: and the sink node adjusts the POS docking optical path and adjusts the service tail fiber from the original SDH equipment to the new SDH equipment.
Step ten: after adjusting the butting light path, testing the service operation condition, and if the service operation is abnormal, readjusting the butting time slot of the convergence point.
As an exemplary embodiment, as shown in fig. 1, the overall structure of the system is divided into the following parts, namely an aggregation node and a child node, wherein the aggregation node is unique, and the child node can be arbitrarily multiple according to service requirements. And firstly carrying out optical path butt joint on the sink node, keeping the service landing point unchanged, then carrying out service adjustment on the record sub node 1 to the sub node N, and at each sub node, adjusting the service landing point from the original SDH equipment to other SDH equipment in the station, and finally adjusting to the new SDH equipment to realize the cutting-over of the sub node, thereby fully utilizing the old original cabinet, and finally adjusting the service landing port from the A port of the original SDH equipment to the C port of the new SDH equipment at the sink node, thereby completing the cutting-over of the whole sink service at one time.
As shown in fig. 2, an optical interface board for time slot butt joint is added on the original SDH equipment of the sink node, then the time slot butt joint optical interface board is utilized to open the butt joint optical path from the original SDH equipment to the new SDH equipment, the landing point of the service convergence point is made to be on the butt joint optical path, then the time slot between the time slot butt joint optical interface board and the service landing optical interface board is pierced through by directly modifying the crossing mode through the network management, the transmission is directly carried out after the piercing, the landing point of the service does not need to be adjusted one by one along with the cutting joint of the substation, and the last adjustment of the tail fiber is only needed.
As shown in fig. 3, after checking the time slot and service usage of the convergence point, the whole process of the convergence channel rapid cutting method based on the POS optical port compiles a service adjustment mode list, and according to the mode list, firstly opens the butt joint optical path of the convergence point, then sequentially develops the service cutting of the sub-nodes, the sub-nodes adopt the mode of modifying the landing point to realize the old utilization of the original cabinet, and after all the sub-nodes are cut, the service landing point is adjusted once at the convergence point, thus completing the channel cutting of the convergence service.
As shown in fig. 4, in order to schematically illustrate the aggregated service, the aggregated service is different from the private line service, and the aggregated service aggregation point receives service data of all sub-nodes and is connected to the service device through a unified port.
In this embodiment, the SDH devices used by the sink node and the child node all conform to the 3-7-3 multiplexing mechanism of SDH, and the new SDH device and the original SDH device may be of the same brand or different brands.
In this embodiment, the abutting optical path of the sink node should be completed before the sub node starts to cut, and the bandwidth of the abutting optical path is selected according to the bandwidth of the original land optical interface board of the sink service, and after the abutting optical path is opened, the abutting optical path should be tested first, so as to ensure that the data can pass.
In this embodiment, the adjustment of the child node fully considers the problem of insufficient space of the machine room, and installs the new SDH device after removing the original SDH device, thereby making use of the old original SDH device cabinet without re-assembling the cabinet.
In this embodiment, in order to reduce the interruption time caused by service cutover, during the period from the removal of the original SDH device to the starting of the new SDH device, the service landing point is temporarily adjusted to bear the load of other SDH devices in the same machine room.
In this embodiment, all the sites do not need to be constructed simultaneously, and each substation service cutover only affects the operation of the substation service, and does not affect the operation of other substation services. After the optical paths of the sink nodes are butted, according to the time slots used by the original service, the sink nodes can be adjusted without synchronization in the process of sub-node cutting through by punching through the time slots between the service floor optical interface board and the optical path butted optical interface board.
It will be appreciated by those skilled in the art that 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. A method for cutting and connecting a convergence service channel based on a POS optical port is characterized by comprising the following steps: the method comprises the following steps:
(1) Checking ports and services of the SDH system, and determining that the service cutting-over mode is a first child node and then a sink node;
(2) In the service convergence node, the SDH time slot is opened in a mode of carrying out optical path butt joint on the new equipment and the original equipment, and the original equipment is used at the service landing place;
(3) Removing the original equipment and installing new equipment at the child node, and finally adjusting the service landing point to the new equipment;
(4) The time slot punching is carried out between the butt joint plate card and the floor plate card of the original equipment of the sink node, and the normal operation of the service is checked;
(5) Judging whether the last child node is cut or not, if not, repeating the steps (3) to (4), and if so, cutting the last child node;
(6) And adjusting the landing point at one time at the sink node, and adjusting the service tail fiber from the original equipment to the new equipment.
2. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: and (7) testing the service operation condition after adjusting the butt joint light path, and readjusting the butt joint time slot of the convergence point if the service operation is abnormal.
3. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: the checking of the port and the service of the SDH system comprises the checking of the service corresponding to different time slots of the POS optical port.
4. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: the new device and the original device are SDH devices.
5. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: the equipment used by the sink node and the child node both conform to the 3-7-3 multiplexing mechanism of SDH.
6. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: firstly, butt joint of the sink nodes is carried out, then sub-node cutting is carried out, the bandwidth of a butt joint light path is selected according to the bandwidth of the original land optical interface board of the sink service, and after the butt joint light path is opened, testing is carried out to ensure that data pass.
7. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: in the step (3), new equipment is installed in the original equipment cabinet.
8. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: in the step (3), during the period from the dismantling of the original equipment to the starting of the new equipment, the service landing point is temporarily adjusted to other equipment in the same machine room.
9. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: and the cutting-over sequence of each sub-node is completed.
10. The method for cutting and connecting the convergent service channels based on the POS optical port as claimed in claim 1, wherein the method comprises the following steps: in the step (4), after the optical paths of the sink nodes are butted, the time slots between the butted optical interface board and the service floor optical interface board are penetrated by adopting a direct modification and intersection mode according to the time slots used by the original service.
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