CN1180578C - Automatic protecting switch controller for optical self-healing ring and its control method - Google Patents
Automatic protecting switch controller for optical self-healing ring and its control method Download PDFInfo
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- CN1180578C CN1180578C CNB011323698A CN01132369A CN1180578C CN 1180578 C CN1180578 C CN 1180578C CN B011323698 A CNB011323698 A CN B011323698A CN 01132369 A CN01132369 A CN 01132369A CN 1180578 C CN1180578 C CN 1180578C
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Abstract
The present invention relates to an automatic protection switching controller applied to an optical self-healing ring and a method thereof, which is characterized in that the controller comprises a multiplex section/optical channel fault selector, an optical channel selector, a circulation counter, a signaling selector, a signaling decoder, a request code processor, a response code processor, a through code processor, a multiplex section/optical channel control selector, and a signaling encoder. The controller is used for receiving network management commands, multiplex section faults, optical channel faults and signaling (both sides) during controlling, and one fault can be selected from the two faults; the signaling is decoded and processed so as to generate multiplex section or optical channel control commands and new signaling, and uniformly reconciling is carried out by the network management commands. A multiplex section control interface and an optical channel control interface can simultaneously receive the control commands of multiplex section protection and optical channel protection, and the control commands can be transferred to a corresponding protection switching actuating mechanism after the format is converted. The signaling (both sides) can be received and sent by a signaling interface, and the conversion of data format can be carried out. The optical channel can be singly protected, and the network is stable.
Description
Technical field
The present invention relates to a kind of controller and control method thereof that is applied to the APS (APS) of optical self-healing ring.
Background technology
Self-healing looped network can provide defencive function fast, is the main networking topology of present SDH (SDH (Synchronous Digital Hierarchy)) network and WDM (wavelength division multiplexing) network.APS is the core cell that optical self-healing ring is realized defencive function, and the current APS that has realized has: the multiplex section protection of the passage of support SDH linear triangulation network and multiplex section protection, support SDH ring network, the multiplex section protection of support WDM ring network.The shortcoming of linear triangulation network is not have self-healing ability.The shortcoming of the multiplex section protection of ring network is: can not separately protected optical channel, the fault of a passage can cause that all passages enter all that the utilance of guard mode, protection passage is low, network is difficult for stable etc.There is not a patent simultaneously the multiplex section protection of ring network and the APS of Optical Channel Protection to be described at this stage as yet.
Summary of the invention
The objective of the invention is shortcoming for the multiplex section protection that overcomes above-mentioned ring network, and a kind of Automatic Protection Switching Control that is applied to optical self-healing ring (APS) and its implementation of supporting the multiplex section protection and the Optical Channel Protection of ring network simultaneously that provides.
In order to realize purpose of the present invention, the technical measures that the present invention takes are: the Automatic Protection Switching Control that is applied to optical self-healing ring, be connected network management interface, signaling interface, multiplex section fault interface, optical channel fault interface, between multiplex section control interface and the optical channel control interface, be characterized in that this Automatic Protection Switching Control comprises one multiplex section/optical channel fault selector, one optical channel selector, one cycle counter, one signaling selector, one signaling decoder, one request code processor, one answer code processor, make code processor always, an one multiplex section/optical channel control selector and signalling coding device; Wherein:
The input of described cycle counter is connected with clock generator;
Described optical channel selector is used for selecting in turn different optical channels, realizes the multichannel Optical Channel Protection, and its input connects the output signal of optical channel fault interface and cycle counter respectively;
Described multiplex section/optical channel fault selector is used for selecting multiplex section or optical channel according to priority, realizes multiplex section protection and Optical Channel Protection, the output signal of its input difference connection multiplexing segment fault interface and optical channel selector; The output of this multiplex section/optical channel fault selector is connected with the input of request code processor, answer code processor, straight-through code processor respectively;
Described signaling selector is used for selecting in turn the signaling of different optical channels, realizes the multichannel Optical Channel Protection, and its input connects the output signal of cycle counter, is connected with the output of signaling interface simultaneously; Its output is connected with the input of request code processor, answer code processor, straight-through code processor respectively;
Described multiplex section/optical channel control selector is used for selecting multiplex section or optical channel according to the selection result of aforesaid multiplex section/optical channel fault selector, realize multiplex section protection and Optical Channel Protection, its input is connected with the output of request code processor, answer code processor, straight-through code processor respectively, and its output is connected with the input of multiplex section control interface with the optical channel control interface respectively;
The input of described signalling coding device is connected with the output of request code processor, answer code processor, straight-through code processor, and its output is connected with the input of signaling interface;
The output of described optical channel selector also respectively by data wire be connected with data/address bus with cycle counter; The output of this multiplex section/optical channel fault selector also is connected with data/address bus with the signaling selector respectively by data wire; This signaling decoder also is connected by data wire and data/address bus are two-way; The output signal of this multiplex section/optical channel control selector also is connected with the signalling coding device with data/address bus respectively by data wire; Described data/address bus is connected with network management interface.
The above-mentioned Automatic Protection Switching Control that is applied to optical self-healing ring, wherein, described optical channel selector and signaling selector are synchronous under the control of cycle counter.
The Automatic Protection Switching Control that is applied to optical self-healing ring carries out the method for APS, is characterized in, may further comprise the steps:
A, at first receive the reporting information of multiplex section fault and optical channel fault automatically respectively by multiplex section fault interface and optical channel fault interface, and pass to Automatic Protection Switching Control later on through format conversion;
B, Automatic Protection Switching Control receive multiplex section fault, optical channel fault and signaling (both sides), select one between two kinds of faults, and signaling is decoded, handled, and produce multiplex section or optical channel control command and new signaling; Or carry out united and coordinating by the webmaster order;
C, multiplex section control interface and optical channel control interface receive the control command of multiplex section protection and Optical Channel Protection respectively, pass to corresponding protection later on through format conversion and switch actuator;
D, receive and send signaling (both sides), the conversion of the line data form of going forward side by side by signaling interface.
Because the present invention has adopted above technical scheme, can separately protected optical channel, the fault of a passage can not cause all passages and all enter guard mode, and the utilance height of protection passage, network are stable easily etc.ASON for development a new generation provides the foundation simultaneously.
Description of drawings
Feature of the present invention, performance are further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the present invention and the concrete embodiment block diagram that is connected of each peripheral components.
Embodiment
The present invention will realize supporting simultaneously the APS of multiplex section protection and Optical Channel Protection, and at first by multiplex section fault interface and optical channel fault interface, the reporting information of automatic reception multiplex section fault and optical channel fault passes to APS later on through format conversion respectively; APS can receive webmaster order, multiplex section fault, optical channel fault and signaling (both sides), selects one between two kinds of faults, and signaling is decoded, handled, and produces multiplex section or optical channel control command and new signaling.Also can carry out united and coordinating by the webmaster order.Multiplex section control interface and optical channel control interface receive the control command of multiplex section protection and Optical Channel Protection respectively, pass to corresponding protection later on through format conversion and switch actuator; Also have network management interface can receive the webmaster order; Signaling interface can receive and send signaling (both sides), the conversion of the line data form of going forward side by side.
See also Fig. 1.The present invention is applied to APS (APS) controller 1 of optical self-healing ring, is connected between network management interface 2, signaling interface 3, multiplex section fault interface 4, optical channel fault interface 5, multiplex section control interface 6 and optical channel control interface 7, the clock generator 8.This Automatic Protection Switching Control comprises one multiplex section/optical channel fault selector 10, an optical channel selector 19, a cycle counter 18, a signaling selector 11, a signaling decoder 12, a request code processor 13, an answer code processor 14, make code processor 15, one multiplex section/optical channel are controlled a selector 16 and a signalling coding device 17 always;
Wherein:
The input 18 of cycle counter is connected with clock generator 8;
Multiplex section/optical channel fault selector 10 is used for realizing simultaneously multiplex section protection and Optical Channel Protection, the output of its input difference connection multiplexing segment fault interface 4 and optical channel selector 19; The output of this multiplex section/optical channel fault selector 10 is connected with the input of request code processor 13, answer code processor 14, straight-through code processor 15 respectively;
Multiplex section/optical channel control selector 16 is used for realizing simultaneously multiplex section protection and Optical Channel Protection, its input is connected with the output of request code processor 13, answer code processor 14, straight-through code processor 15 respectively, and its output is connected with the input of multiplex section control interface 6 with optical channel control interface 15 respectively;
The input of signalling coding device 17 is connected with the output of request code processor 13, answer code processor 14, straight-through code processor 15, and its output is connected with the input of signaling interface 3;
The output of optical channel selector 19 also is connected with data/address bus 9 with cycle counter 18 by data wire respectively; The output of this multiplex section/optical channel fault selector 10 also is connected with data/address bus 9 with signaling selector 11 respectively by data wire; This signaling selector 12 is also by data wire and 9 two-way connections of data/address bus; The output signal of this multiplex section/optical channel control selector 16 also is connected with signalling coding device 17 with data/address bus 9 respectively by data wire; Described data/address bus 9 is connected with network management interface 2.
See also Fig. 2.The concrete embodiment block diagram that is connected of this present invention and each peripheral components.
Frame of broken lines among the figure is APS controller 1 and peripheral network management interface 2, signaling interface (both sides) 3, multiplex section fault interface 4, optical channel fault interface 5, multiplex section control interface 6 and optical channel control interface 7 thereof.
A webmaster input port 1-1, multiplex section fault input port 1-2, optical channel multichannel fault input port 1-3, a signaling multi-channel input mouth 1-4, new signaling output port 1-5, a multiplex section control output end mouth 1-6 and an optical channel control output end mouth 1-7 are arranged among the APS.
Network management interface has a webmaster external input port 2-1 and a webmaster output port 2-2.
Signaling interface has the outside input/output port 3-1 of a signaling, a signaling multi-channel output mouth 3-2 and a new signaling input port 3-3.
Multiplex section fault interface has a multiplex section fault external input port 4-1 and a multiplex section failure output terminal mouth 4-2.
Optical channel fault interface has an optical channel fault external input port 5-1 and an optical channel fault multi-channel output mouth 5-2.
The multiplex section control interface has a multiplex section control command input port 6-1 and a multiplex section control external output port 6-2.
The optical channel control interface has an optical channel control command input port 7-1 and an optical channel control external output port 7-2.
The optical channel fault multi-channel output mouth 5-2 of optical channel fault interface is connected to the optical channel fault multi-channel input mouth 1-3 of APS controller, the multiplex section failure output terminal mouth 4-2 of multiplex section fault interface is connected to the multiplex section fault input port 1-2 of APS controller, the optical channel control command input port 7-1 of optical channel control interface is connected with the optical channel control output end mouth 1-7 of APS controller, the multiplex section control command input port 6-1 of multiplex section control interface is connected with the multiplex section control output end mouth 1-6 of APS controller, the signaling multi-channel output mouth 3-2 of signaling interface is connected to the signaling multi-channel input mouth 1-4 of APS controller, the new signaling input port 3-3 of signaling interface is connected with the new signaling output port 1-5 of APS controller, and the webmaster output port 2-2 of network management interface is connected with the webmaster input port 1-1 of APS controller.
The APS controller comprises cycle counter 18, optical channel selector 19, multiplex section/optical channel fault selector 10, signaling selector 11, signaling decoder 12, request code processor 13, answer code processor 14, straight-through code processor 15, multiplex section/optical channel control selector 16 and signalling coding device 17 etc.
Cycle counter among the APS, optical channel selector, signaling selector, multiplex section/optical channel fault selector and multiplex section/optical channel control selector is the key modules in order to realize that simultaneously multiplex section protection and Optical Channel Protection increase newly; And signaling decoder, request code processor, answer code processor, straight-through code processor and signalling coding device all are the standard modules that meets international standard.
More than several modules can realize the multichannel Optical Channel Protection simultaneously.The present invention takes turns to handle to one road optical channel with the method for timesharing at set intervals.
Multiplex section/optical channel fault selector 10 has a multiplex section fault input port 10-1, an optical channel fault input port 10-2 and a failure output terminal mouth 10-3.Multiplex section/optical channel fault selector can receive multiplex section fault and optical channel fault, selects the fault output of high priority according to the priority level of two kinds of faults.
Multiplex section/optical channel control selector 16 has request control command input port 16-1, a responsing control command input port 16-2 and straight-through control command input port 16-3, a multiplex section control command output port 16-4 and an optical channel control command output port 16-5.Multiplex section/optical channel control selector can separate multiplex section control command that comes from request code processor, answer code processor and straight-through code processor and optical channel control command.
More than two modules can realize multiplex section protection and Optical Channel Protection simultaneously, the present invention handles multiplex section and optical channel with the method for minute priority.Based on such fact: when the multiplex section fault is arranged the optical channel fault must be arranged, and the multiplex section fault when being arranged, the optical channel fault is arranged not necessarily, therefore the priority of multiplex section fault is higher than the optical channel fault, processing to the multiplex section fault is equivalent to all optical channels are all handled, and the optical channel fault is carried out processing spec is current not to have a multiplex section fault.
Signaling comprises contents such as fault level, fault section, faulty channel and signaling status.Signaling decoder 12 has a signaling input port 12-1, request code output port 12-2, an answer code output port 12-3 and a straight-through sign indicating number output port 12-4.
Straight-through code processor 15 has a straight-through sign indicating number input port 15-1, fault input port 15-2, a straight-through signaling output port 15-3 and a straight-through control command port one 5-4.
Signaling decoder can be decomposed into request code, answer code and three kinds of sign indicating number types of straight-through sign indicating number to signaling automatically according to the value of signaling status and handle respectively; In conjunction with other content of current fault message of choosing and signaling, the request code processor can be handled request code, and demand signalling is responded or do not respond, and produces new signaling; Answer code processor processing answer code is handled response signaling, produces multiplex section or optical channel control command and new signaling; Straight-through code processor is handled straight-through sign indicating number, and signaling is left intact directly to send;
Signalling coding device 17 has demand signalling input port 17-1, a response signaling input port 17-2 and straight-through signaling input port 17-3 and a new signaling output port 17-4.The signalling coding device can be encoded to signaling contents such as new fault level, fault section, faulty channel and signaling status, is sent by signaling interface.
The count value output port 18-1 of cycle counter 18 of the present invention and 18-2 are connected respectively to the count value input port 19-2 of optical channel selector and the count value input port 11-2 of signaling selector.
The count value input port 19-2 of optical channel selector 19 is connected with the count value output port 18-1 of cycle counter, optical channel fault multi-channel input mouth 19-1 is connected with the optical channel fault multi-channel output mouth 5-2 of optical channel fault interface, and optical channel fault single channel output port 19-3 is connected to the optical channel fault input port 10-2 of multiplex section/optical channel fault selector.
The multiplex section fault input port 10-1 of multiplex section/optical channel fault selector 10 is connected with the multiplex section failure output terminal mouth 4-2 of multiplex section fault interface, optical channel fault input port 10-2 is connected with the optical channel fault single channel output port 19-3 of optical channel selector, and failure output terminal mouth 10-3 is connected to fault input port 13-2,14-2 and the 15-2 of request code processor, answer code processor and straight-through code processor simultaneously.
The count value input port 11-2 of signaling selector 11 is connected with the count value output port 18-2 of cycle counter 18, signaling multi-channel input mouth 11-1 is connected with the signaling multi-channel output mouth 3-2 of signaling interface, and signaling output port 11-3 is connected to the signaling input port 12-1 of signaling decoder.
The signaling input port 12-1 of signaling decoder 12 is connected with the signaling output port 11-3 of signaling selector, request code output port 12-2 is connected to the request code input port 13-1 of request code processor, answer code output port 12-3 is connected to the answer code input port 14-1 of answer code processor, and straight-through sign indicating number output port 12-4 is connected to the straight-through sign indicating number input port 15-1 of straight-through code processor.
The request code input port 13-1 of request code processor 13 is connected with the request code output port 12-2 of signaling decoder, fault input port 13-2 is connected with the failure output terminal mouth 10-3 of multiplex section/optical channel fault selector, request control command output port 13-4 is connected to the request control command input port 16-1 of multiplex section/optical channel control selector, and demand signalling output port 13-3 is connected to the demand signalling input port 17-1 of signalling coding device.
The answer code input port 14-1 of answer code processor 14 is connected with the answer code output port 12-3 of signaling decoder, fault input port 14-2 is connected with the failure output terminal mouth 10-3 of multiplex section/optical channel fault selector, responsing control command output port 14-4 is connected to the responsing control command input port 16-2 of multiplex section/optical channel control selector, and response signaling output port 14-3 is connected to the response signaling input port 17-2 of signalling coding device.
The straight-through sign indicating number input port 15-1 of straight-through code processor 15 is connected with the straight-through sign indicating number output port 12-4 of signaling decoder, fault input port 15-2 is connected with the failure output terminal mouth 10-3 of multiplex section/optical channel fault selector, straight-through control command output port 15-4 is connected to the straight-through control command input port 16-3 of multiplex section/optical channel control selector, and straight-through signaling output port 15-3 is connected to the straight-through signaling input port 17-3 of signalling coding device.
Request, response and straight-through control command input port 16-1, the 16-2 of multiplex section/optical channel control selector 16 ask with request code, answer code and straight-through code processor respectively accordingly with 16-3, respond with straight-through control command output port 13-4,14-4 and be connected with 15-4, multiplex section control command output port 16-4 is connected to the input port 6-1 of multiplex section control interface, and optical channel control command output port 16-5 is connected to the optical channel control command input port 7-1 of optical channel control interface.
The request of signalling coding device 17, response and straight-through signaling input port 17-1,17-2 ask with request code, answer code and straight-through code processor respectively accordingly with 17-3, respond with straight-through signaling output port 13-3,14-3 and be connected with 15-3, and new signaling output port 17-4 is connected to the new signaling input port 3-3 of signaling interface.
The Automatic Protection Switching Control that the present invention is applied to optical self-healing ring carries out the method for APS, may further comprise the steps:
A, at first receive the reporting information of multiplex section fault and optical channel fault respectively by multiplex section fault interface and optical channel fault interface, and pass to Automatic Protection Switching Control later on through format conversion;
B, Automatic Protection Switching Control receive multiplex section fault, optical channel fault and signaling (both sides), select one between two kinds of faults, and signaling is decoded, handled, and produce multiplex section or optical channel control command and new signaling; Or carry out united and coordinating by the webmaster order;
C, multiplex section control interface and optical channel control interface receive the control command of multiplex section protection and Optical Channel Protection respectively, pass to corresponding protection later on through format conversion and switch actuator;
D, receive and send signaling (both sides), the conversion of the line data form of going forward side by side by signaling interface.
The present invention can separately protected optical channel, makes the utilance height of optical channel, network stabilization, and the ASON for development a new generation provides the foundation simultaneously.
Claims (3)
1, is applied to the Automatic Protection Switching Control of optical self-healing ring, be connected between network management interface, signaling interface, multiplex section fault interface, optical channel fault interface, multiplex section control interface and the optical channel control interface, it is characterized in that this Automatic Protection Switching Control comprises one multiplex section/optical channel fault selector, an optical channel selector, a cycle counter, a signaling selector, a signaling decoder, a request code processor, an answer code processor, make code processor, one multiplex section/optical channel are controlled a selector and a signalling coding device always; Wherein:
The input of described cycle counter is connected with clock generator;
Described optical channel selector is used for selecting in turn different optical channels, and its input connects the output signal of optical channel fault interface and cycle counter respectively;
Described multiplex section/optical channel fault selector is used for selecting multiplex section or optical channel according to priority, the output signal of its input difference connection multiplexing segment fault interface and optical channel selector; The output of this multiplex section/optical channel fault selector is connected with the input of request code processor, answer code processor, straight-through code processor respectively;
Described signaling selector is used for selecting in turn the signaling of different optical channels, and its input connects the output signal of cycle counter, is connected with the output of signaling interface simultaneously; Its output is connected with the input of request code processor, answer code processor, straight-through code processor respectively;
Described multiplex section/optical channel control selector is used for selecting multiplex section or optical channel according to the selection result of aforesaid multiplex section/optical channel fault selector, its input is connected with the output of request code processor, answer code processor, straight-through code processor respectively, and its output is connected with the input of multiplex section control interface with the optical channel control interface respectively;
The input of described signalling coding device is connected with the output of request code processor, answer code processor, straight-through code processor, and its output is connected with the input of signaling interface;
The output of described optical channel selector also respectively by data wire be connected with data/address bus with cycle counter; The output of this multiplex section/optical channel fault selector also is connected with data/address bus with the signaling selector respectively by data wire; This signaling decoder also is connected by data wire and data/address bus are two-way; The output signal of this multiplex section/optical channel control selector also is connected with the signalling coding device with data/address bus respectively by data wire; Described data/address bus is connected with network management interface.
2, the Automatic Protection Switching Control that is applied to optical self-healing ring according to claim 1 is characterized in that, described optical channel selector and signaling selector are synchronous under the control of cycle counter.
3, adopt the described Automatic Protection Switching Control that is applied to optical self-healing ring of claim 1 to carry out the method for APS, it is characterized in that, may further comprise the steps:
A, at first receive the reporting information of multiplex section fault and optical channel fault automatically respectively by multiplex section fault interface and optical channel fault interface, and pass to Automatic Protection Switching Control later on through format conversion;
B, Automatic Protection Switching Control receive multiplex section fault, optical channel fault and signaling, select one between two kinds of faults, and signaling is decoded, handled, and produce multiplex section or optical channel control command and new signaling;
C, multiplex section control interface and optical channel control interface receive the control command of multiplex section protection and Optical Channel Protection respectively, pass to corresponding protection later on through format conversion and switch actuator;
D, receive and send signaling, the conversion of the line data form of going forward side by side by signaling interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011323698A CN1180578C (en) | 2001-11-30 | 2001-11-30 | Automatic protecting switch controller for optical self-healing ring and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011323698A CN1180578C (en) | 2001-11-30 | 2001-11-30 | Automatic protecting switch controller for optical self-healing ring and its control method |
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| CN1422013A CN1422013A (en) | 2003-06-04 |
| CN1180578C true CN1180578C (en) | 2004-12-15 |
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| CNB011323698A Expired - Lifetime CN1180578C (en) | 2001-11-30 | 2001-11-30 | Automatic protecting switch controller for optical self-healing ring and its control method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100428728C (en) * | 2004-12-03 | 2008-10-22 | 华为技术有限公司 | Multiplex section protective protocol realizing method |
| CN100352226C (en) * | 2004-12-13 | 2007-11-28 | 华为技术有限公司 | Method for realizing M:N looped network protection switching operation |
| CN101064566B (en) * | 2006-04-26 | 2010-05-12 | 中兴通讯股份有限公司 | Automatic detection apparatus and method for protecting switch function in optical transmission system |
| CN101640818B (en) | 2009-09-08 | 2012-09-05 | 中兴通讯股份有限公司 | Protection device and protection method of optical network |
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