CN105281931A - Error code detection method, device and system of POTN - Google Patents
Error code detection method, device and system of POTN Download PDFInfo
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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Abstract
The invention discloses an error code detection method, device and system of the OPTN. The method comprises that an intermediate node of the POTN determines whether an error code exists the limit, and the intermediate node is connected with another intermediate node via an OTP link; and the intermediate node sends an alarm message to a downstream node of an influenced service according to a determination result. The problem that the error code detection precision is low in the POTN is solved, more precise performance deterioration detection and more reliable protection switching can be realized in the OPTN, and the reliability of the PTN service is improved.
Description
Technical field
The present invention relates to the communications field, in particular to bit error detection method, the Apparatus and system of one grouping optical transfer network (PackageOpticalTransportNetwork, referred to as POTN).
Background technology
Packet Transport Network (PackageTransportNetwork is adopted in current telecom operators transmission network; referred to as PTN) Over optical transfer network (OpticalTransportNetwork; referred to as OTN) networking comparatively common; wherein PTN is used for service access; there is provided business and protection end to end, OTN mainly provides Large Copacity and long range propagation.Along with the raising that telecom operators require network reliability; need also can realize service protection when there is link performance deterioration in network; because protection is completed by PTN end to end; performance degradation (SignalDegraded, referred to as SD) protection is now realized by PTN device.Although OTN also can provide SD to protect, and can only be a kind of localised protection, and in network, PTN and OTN protects superposition can bring the other problems such as network protection complex structure, generally can not dispose in a network.
PTN is the network based on packet switch; its SD protection judges performance degradation degree based on packet loss detection; its packet loss detection based on the operation management of PTN and can safeguard (Operations; AdministrationandMaintenance; referred to as OAM) mechanism (as G.8113.1/G.8113.2); or Ethernet media interviews control (MediaAccessControl; referred to as MAC) FCS of layer: frame check sequence (FrameCheckSequence, referred to as FCS) inspection mechanism.Because packet loss detection mechanism and service traffics, link packet sending speed, business packet length etc. all exist certain relation, be difficult to accomplish that high-precision packet loss detects, such as in identical service traffics situation, business packet is long larger, then the quantity of giving out a contract for a project of each second is fewer, and the precision of packet loss detection is lower.The packet loss precision that usually can detect in the network of PTN is 10
-3~ 10
-6between, the network of this and SDH (Synchronous Digital Hierarchy) (SynchronousDigitalHierarchy, referred to as SDH)/OTN exists larger gap, and (in SDH/OTN network, Error detection precision can reach 10
-9).Therefore, in the network of the grouping optical transfer network (POTN) of PTN and OTN fusion, current Error detection precision is lower.
For the problem that the Error detection precision of POTN network in correlation technique is lower, at present effective solution is not yet proposed.
Summary of the invention
For the problem that the Error detection precision of POTN network in correlation technique is lower, the invention provides the bit error detection method of a kind of POTN, Apparatus and system, at least to solve the problem.
According to an aspect of the present invention, provide the bit error detection method of a kind of POTN, comprising: it is out-of-limit that the intermediate node of POTN network judges whether to there is error code, wherein, described intermediate node is connected by optical transfer network OTN link with another intermediate node; Described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding.
Preferably, the intermediate node of POTN network judges whether to exist that error code is out-of-limit to be comprised: it is out-of-limit that described intermediate node judges whether to there is error code by OTN error detection techniques.
Preferably, described intermediate node comprises to the downstream node transmission warning message that affected business is corresponding according to judged result: described intermediate node sends the operation management of Packet Transport Network PTN network according to judged result to the downstream node that affected business is corresponding and safeguards OAM warning message.
Preferably, after the downstream node that described intermediate node is corresponding to affected business according to judged result sends the OAM warning message of PTN network, also comprise: described downstream node is resolved described OAM warning message; According to analysis result and pretection switch rule, described downstream node determines whether that execution is switched.
Preferably, described intermediate node sends warning message according to judged result to downstream node corresponding to affected business and comprises: when described judged result for exist error code out-of-limit, described intermediate node sends for notifying the warning message that alarm produces to the downstream node that affected business is corresponding; And/or when described judged result is the out-of-limit disappearance of error code, described intermediate node sends for notifying the warning message that alarm disappears to the downstream node that affected business is corresponding.
Preferably, described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding and comprises: described intermediate node sends the message carrying Far End Bit Error out-of-limit instruction FEI to the downstream node that affected business is corresponding according to judged result, wherein, the out-of-limit instruction of described Far End Bit Error is used to indicate described warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
According to a further aspect in the invention, provide the device for detecting code error of a kind of POTN, be arranged in the intermediate node of POTN network, wherein, described intermediate node is connected by optical transfer network OTN link with another intermediate node, and described device comprises: judge module, out-of-limit for judging whether to there is error code; Sending module, for sending warning message according to judged result to the downstream node that affected business is corresponding.
Preferably, described judge module comprises: judging unit, out-of-limit for judging whether to there is error code by OTN error detection techniques.
Preferably, described sending module comprises: the first transmitting element, for sending the operation management of Packet Transport Network PTN network according to judged result to the downstream node that affected business is corresponding and safeguard OAM warning message.
Preferably, described sending module comprises: the second transmitting element, for when described judged result for exist error code out-of-limit, send for notifying the warning message that alarm produces to downstream node corresponding to affected business; And/or when described judged result is the out-of-limit disappearance of error code, the downstream node corresponding to affected business sends for notifying the warning message that alarm disappears.
Preferably, described sending module comprises: the 3rd transmitting element, for sending the message carrying Far End Bit Error out-of-limit instruction FEI to the downstream node that affected business is corresponding according to judged result, wherein, the out-of-limit instruction of described Far End Bit Error is used to indicate described warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
According to a further aspect in the invention, additionally provide the Error detection system of a kind of POTN, comprise the device for detecting code error of above-mentioned POTN, also comprise downstream node, wherein, described downstream node comprises: parsing module, for when warning message is OAM warning message, resolves described OAM warning message; According to analysis result and pretection switch rule, determination module, for determining whether that execution is switched.
By the present invention, adopt the intermediate node of POTN network to judge whether to there is error code out-of-limit, wherein, above-mentioned intermediate node is connected by OTN link with another intermediate node; Above-mentioned intermediate node sends the mode of warning message to the downstream node that affected business is corresponding according to judged result; solve the problem that the Error detection precision of POTN network in correlation technique is lower; more high-precision performance degradation in POTN network can be realized detect and more reliable pretection switch, promote the reliability of PTN business.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the bit error detection method of POTN according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the device for detecting code error of POTN according to the embodiment of the present invention;
Fig. 3 is the structured flowchart of the Error detection system of POTN according to the embodiment of the present invention;
Fig. 4 is POTN network protection networking schematic diagram according to the preferred embodiment of the invention;
Fig. 5 is the algorithm flow schematic diagram of POTN network protection according to the preferred embodiment of the invention;
Fig. 6 is that convergence-level adopts POTN equipment according to the preferred embodiment of the invention, adopts the networking schematic diagram that OTN connects between aggregation node;
Fig. 7 is according to the business of the embodiment of the present invention one and OAM message encapsulation schematic diagram;
Fig. 8 is according to the business of the embodiment of the present invention two and OAM message encapsulation schematic diagram.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
In the present embodiment, provide the bit error detection method of a kind of POTN, Fig. 1 is the flow chart of the bit error detection method of POTN according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
It is out-of-limit that the intermediate node of step S102, POTN network judges whether to there is error code, and wherein, above-mentioned intermediate node is connected by OTN link with another intermediate node;
Step S104, above-mentioned intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding.
The present embodiment passes through above-mentioned steps, it is out-of-limit that the intermediate node of POTN network judges whether to there is error code, and judged result is informed to downstream node corresponding to affected business, thus make downstream node whether can there is the out-of-limit situation of error code according to intermediate node, take the circumstances into consideration to determine whether to perform pretection switch, combine the function that the out-of-limit and PTN of error code switches process, solve the problem that the Error detection precision of POTN network in correlation technique is lower, more high-precision performance degradation in POTN network can be realized detect and more reliable pretection switch, promote the reliability of PTN business.
Preferably, can to judge whether to there is error code by OTN error detection techniques out-of-limit for the intermediate node of POTN network.
Preferably, when above-mentioned intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding, the OAM warning message of PTN network can be sent.
Preferably, after above-mentioned intermediate node sends OAM warning message to downstream node, above-mentioned downstream node can be resolved above-mentioned OAM warning message, then determines whether that execution is switched according to analysis result and pretection switch rule.
As a preferred implementation, the mode that above-mentioned intermediate node sends warning message according to judged result to downstream node corresponding to affected business specifically can comprise: when above-mentioned judged result for exist error code out-of-limit, above-mentioned intermediate node can send for notifying the warning message that alarm produces to the downstream node that affected business is corresponding; And/or when above-mentioned judged result is the out-of-limit disappearance of error code, above-mentioned intermediate node can send for notifying the warning message that alarm disappears to the downstream node that affected business is corresponding.
Preferably, when above-mentioned intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding, out-of-limit instruction (the Far-EndErrorIndication of Far End Bit Error can be carried in this warning message, referred to as FEI) message, wherein, the out-of-limit instruction of said distal ends error code is used to indicate above-mentioned warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
Corresponding to said method, additionally provide the device for detecting code error of a kind of POTN in the present embodiment, be arranged in the intermediate node of POTN network, wherein, above-mentioned intermediate node is connected by OTN link with another intermediate node, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 2 is the structured flowchart of the device for detecting code error of POTN according to the embodiment of the present invention, and as shown in Figure 2, this device comprises: judge module 22 and sending module 24, be described in detail to modules below:
Judge module 22, out-of-limit for judging whether to there is error code; Sending module 24, is connected with judge module 22, sends warning message for the judged result according to judge module 22 to the downstream node that affected business is corresponding.
Preferably, above-mentioned judge module 22 can comprise: judging unit 222, out-of-limit for judging whether to there is error code by OTN error detection techniques.
Preferably, above-mentioned sending module 24 can comprise: the first transmitting element 242, for sending the OAM warning message of PTN network to the downstream node that affected business is corresponding according to the judged result of judge module 22.
Preferably, above-mentioned sending module 24 can also comprise: the second transmitting element 244, for when judge module 22 above-mentioned judged result for exist error code out-of-limit, send for notifying the warning message that alarm produces to downstream node corresponding to affected business; And/or when above-mentioned judged result is the out-of-limit disappearance of error code, the downstream node corresponding to affected business sends for notifying the warning message that alarm disappears.
Preferably, above-mentioned sending module 24 can also comprise: the 3rd transmitting element 246, send to the downstream node that affected business is corresponding the message carrying the out-of-limit instruction of Far End Bit Error for the judged result according to judge module 22, wherein, the out-of-limit instruction of said distal ends error code is used to indicate above-mentioned warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
In the present embodiment, additionally provide the Error detection system of a kind of POTN, Fig. 3 is the structured flowchart of the Error detection system of POTN according to the embodiment of the present invention, as shown in Figure 3, this system comprises the device for detecting code error 20 of above-mentioned POTN as shown in Figure 2, also comprise downstream node 30, wherein, above-mentioned downstream node 30 comprises parsing module 32 and determination module 34:
Parsing module 32, for when warning message is OAM warning message, resolves above-mentioned OAM warning message; Determination module 34, is connected with parsing module 32, for determining whether that execution is switched according to the analysis result of parsing module 32 and pretection switch rule.
Be described below in conjunction with preferred embodiment, following preferred embodiment combines above-described embodiment and preferred implementation thereof.
In following preferred embodiment; propose in the networking application of a kind of PTN and OTN fusion device (being commonly referred to POTN equipment); the one of performance degradation (SD) defencive function is improved one's methods; specifically; relate to POTN equipment under PTN and OTN mixed networking application model; improve Error detection precision during SD protection, make SD protect more accurate a kind of reliable method.The method provides a kind of pass through mechanism and protection trigger mechanism of performance degradation in the networking of PTN and OTN fusion device (POTN equipment), makes PTN protection end to end in POTN network can realize high-precision Error detection and pretection switch.
The method of this preferred embodiment relates generally to three modules:
Error code detection module (achieving the function of above-mentioned judge module 22): the error code detection module of OTN interface, this module adopts the OTN error detection techniques of correlation technique to realize, and can realize high-precision Error detection;
Error code transmits module (achieving the function of above-mentioned sending module 24): the situation that the error code Threshold Crossing Alert detected by OTN interface produces, by the OAM message (i.e. above-mentioned warning message) that this module converter is PTN network, the node that notice PTN network protection act performs, OAM message herein needs to expand in original PTNOAN mechanism;
Bit error processing module (achieving the function of above-mentioned parsing module 32): the node performed at PTN network protection act, after this module receives the OAM message (i.e. above-mentioned warning message) of carrying the out-of-limit instruction of Far End Bit Error that on service path, the transmission of POTN equipment comes, using error code instruction as one of pretection switch trigger condition notice pretection switch processing module, judged whether to switch by pretection switch processing module;
PTN switches processing module (achieving the function of above-mentioned determination module 34): comprehensive various trigger condition, judges switch status and perform corresponding actions, and this module adopts the PTN device of correlation technique to switch processing module and can realize.
Fig. 4 is POTN network protection networking schematic diagram according to the preferred embodiment of the invention; as shown in Figure 4; in POTN network; what suppose to adopt between intermediate node P1 and P2 is that OTN link connects that (other connects for OTN connects or Ethernet connection; with hereafter describe irrelevant); on P1/P2 node, then there are error code detection module and error code to transmit module, PE1/PE2 node have bit error processing module and PTN switch processing module.
In conjunction with above-mentioned networking schematic diagram, Fig. 5 is the algorithm flow schematic diagram of POTN network protection according to the preferred embodiment of the invention, and as shown in Figure 5, this flow process comprises the steps:
Step S502, on P1/P2 node, adopts OTN error detection techniques, judges whether to there is error code out-of-limit, if it is out-of-limit to there is error code, enter step S504, otherwise enter step S508;
Step S504, if it is out-of-limit that error code detection module judges to there is error code, then produce the out-of-limit instruction of Far End Bit Error, then transmit module by error code to send specific OAM message to downstream PE node corresponding to affected business (downstream node of P1 is the downstream node of PE1, P2 is in detail in this figure PE2) and (be defined herein as and carry the out-of-limit instruction (f of Far End Bit Error
ar-
end
err
orindi
cati
on, referred to as FEI) message, referred to as FEI message, notice alarm produce;
Step S506, PE1/PE2 node bit error processing module, extracts and resolves FEI message, the production of error code being delivered to PTN and switching processing module;
Step S508, if error code detection module judges the out-of-limit disappearance of error code, then transmits module by error code and sends FEI message notifying alarm disappearance (or representing that alarm disappears to stop paying out message);
Step S510, PE1/PE2 node bit error processing module, extracts and resolves FEI message, the Disappearance Scenarios of error code being delivered to PTN and switching processing module;
Step S512, PTN switch processing module according to pretection switch rule, and decision-making also performs and switches result.
Adopt error code transmission and the treatment mechanism of this preferred embodiment; processing capacity is switched in conjunction with the OTN error detection techniques of correlation technique and PTN; more high-precision performance degradation in POTN network can be realized detect and more reliable pretection switch, promote the reliability of PTN business.
Introduce below in POTN bearer network, after error code appears in a certain section of OTN link, according to the specific embodiment of the pretection switch of this preferred embodiment.
Fig. 6 is that convergence-level adopts POTN equipment according to the preferred embodiment of the invention, the networking schematic diagram that OTN connects is adopted between aggregation node, as shown in Figure 6, in metropolitan area POTN bearer network, network is usually divided into access, converges and core three levels, current mainly at convergence-level or core layer employing POTN equipment network, Access Layer mainly adopts pure PTN device networking, and the evolution of following possibility is to POTN equipment network.Here only adopt POTN equipment with convergence-level, between aggregation node, adopt OTN to connect for example is described.
Embodiment one:
When POTN equipment realizes, light data cell (OpticalChannelDataUnit, referred to as ODU) loading multi-protocols Tag switching-transport architecture (Multi-ProtocolLabelSwitching-TransportProfile, referred to as MPLS-TP) time can adopt pseudo-line (PseudoWire, referred to as PW) overODU mode, service label switching path (LabelSwitchedPath, referred to as LSP) terminate on POTN equipment, now the scheme of embodiment one is as follows:
1) on P1 equipment, it is out-of-limit that error code detection module detects that error code occurs certain ODUk;
2) on P1 equipment, error code transmission module judges the business PW affected by this ODUk, comprise PE1-PE3 business and PE2-PE3 business herein, error code transmits module and adopts PWOAM encapsulation to send FEI message to PE1 and PE2, FEI message adopts G.8113.1 described OAM message structure, define new command code (OperatingCode, referred to as OPCode) value to be to represent that this message is for FEI message, carrying the out-of-limit instruction of error code in message (has alarm to be 1, no alarm is 0), Fig. 7 is according to the business of the embodiment of the present invention one and OAM message encapsulation schematic diagram, message encapsulation as shown in Figure 7,
3) on PE1 and PE2 equipment, bit error processing module extracts FEI message from interface identification, analytic message content, judges that there is the out-of-limit generation of error code in work PW path, and in notice node, PTN switches processing module;
4) on PE1 and PE2 equipment PTN switch processing module decision-making need implement SD switch, Business Stream is switched to protection PW transmitting-receiving;
5) terminate.
Embodiment two:
When POTN equipment realizes, also can adopt LSPoverODU mode during ODU carrying MPLS-TP, business LSP is carried on ODUk carry out Tag switching on POTN equipment after, and now the scheme of embodiment two is as follows:
1) on P1 equipment, it is out-of-limit that error code detection module detects that error code occurs certain ODUk;
2) on P1 equipment, error code transmission module judges the business LSP affected by this ODUk, comprise PE1-PE3 business and PE2-PE3 business herein, error code transmits module and adopts LSPOAM encapsulation to send FEI message to PE1 and PE2, FEI message adopts G.8113.1 described OAM message structure, define new OPCode value to represent that this message is for FEI message, carrying the out-of-limit instruction of error code in message (has alarm to be 1, no alarm is 0), Fig. 8 is that message encapsulation as shown in Figure 8 according to the business of the embodiment of the present invention two and OAM message encapsulation schematic diagram;
3) on PE1 and PE2 equipment, bit error processing module extracts FEI message from interface identification, analytic message content, judges working LSP path there is the out-of-limit generation of error code, and in notice node, PTN switches processing module;
4) on PE1 and PE2 equipment PTN switch processing module decision-making need implement SD switch, Business Stream is switched to protection LSP transmitting-receiving;
5) terminate.
As can be seen from above preferred embodiment, this testing mechanism handling process is succinct, workable, in the application of POTN equipment network, have stronger practical value.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred embodiment.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. divide into groups a bit error detection method of optical transfer network POTN, it is characterized in that, comprising:
It is out-of-limit that the intermediate node of POTN network judges whether to there is error code, and wherein, described intermediate node is connected by optical transfer network OTN link with another intermediate node;
Described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding.
2. method according to claim 1, is characterized in that, the intermediate node of POTN network judges whether to exist that error code is out-of-limit to be comprised:
It is out-of-limit that described intermediate node judges whether to there is error code by OTN error detection techniques.
3. method according to claim 2, is characterized in that, described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding and comprises:
Described intermediate node sends the operation management of Packet Transport Network PTN network according to judged result to the downstream node that affected business is corresponding and safeguards OAM warning message.
4. method according to claim 3, is characterized in that, after the downstream node that described intermediate node is corresponding to affected business according to judged result sends the OAM warning message of PTN network, also comprises:
Described downstream node is resolved described OAM warning message;
According to analysis result and pretection switch rule, described downstream node determines whether that execution is switched.
5. method according to claim 1, is characterized in that, described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding and comprises:
When described judged result for exist error code out-of-limit, described intermediate node sends for notifying the warning message that alarm produces to downstream node corresponding to affected business; And/or,
When described judged result is the out-of-limit disappearance of error code, described intermediate node sends for notifying the warning message that alarm disappears to the downstream node that affected business is corresponding.
6. method according to claim 5, is characterized in that, described intermediate node sends warning message according to judged result to the downstream node that affected business is corresponding and comprises:
Described intermediate node sends the message carrying Far End Bit Error out-of-limit instruction FEI to the downstream node that affected business is corresponding according to judged result, wherein, the out-of-limit instruction of described Far End Bit Error is used to indicate described warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
7. divide into groups a device for detecting code error of optical transfer network POTN, and be arranged in the intermediate node of POTN network, wherein, described intermediate node is connected by optical transfer network OTN link with another intermediate node, it is characterized in that, comprising:
Judge module, out-of-limit for judging whether to there is error code;
Sending module, for sending warning message according to judged result to the downstream node that affected business is corresponding.
8. device according to claim 7, is characterized in that, described judge module comprises:
Judging unit, out-of-limit for judging whether to there is error code by OTN error detection techniques.
9. device according to claim 8, is characterized in that, described sending module comprises:
First transmitting element, for sending the operation management of Packet Transport Network PTN network according to judged result to the downstream node that affected business is corresponding and safeguard OAM warning message.
10. device according to claim 7, is characterized in that, described sending module comprises:
Second transmitting element, for when described judged result for exist error code out-of-limit, send for notifying the warning message that alarm produces to downstream node corresponding to affected business; And/or when described judged result is the out-of-limit disappearance of error code, the downstream node corresponding to affected business sends for notifying the warning message that alarm disappears.
11. devices according to claim 10, is characterized in that, described sending module comprises:
3rd transmitting element, for sending the message carrying Far End Bit Error out-of-limit instruction FEI to the downstream node that affected business is corresponding according to judged result, wherein, the out-of-limit instruction of described Far End Bit Error is used to indicate described warning message is for notifying the warning message that alarm produces or for notifying the warning message that alarm disappears.
The Error detection system of 12. 1 kinds of POTN, is characterized in that, comprises the device for detecting code error of the POTN according to any one of claim 7 to 11, also comprises downstream node, and wherein, described downstream node comprises:
Parsing module, for when warning message is OAM warning message, resolves described OAM warning message;
According to analysis result and pretection switch rule, determination module, for determining whether that execution is switched.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410272784.3A CN105281931B (en) | 2014-06-18 | 2014-06-18 | Bit error detection method, the apparatus and system of POTN |
| JP2016573757A JP2017518705A (en) | 2014-06-18 | 2014-09-22 | Bit error detection method, apparatus and system for packet optical transmission network |
| PCT/CN2014/087117 WO2015192518A1 (en) | 2014-06-18 | 2014-09-22 | Error detection method, apparatus and system for potn |
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| CN201410272784.3A CN105281931B (en) | 2014-06-18 | 2014-06-18 | Bit error detection method, the apparatus and system of POTN |
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| CN110011819A (en) * | 2018-01-04 | 2019-07-12 | 中兴通讯股份有限公司 | Generate method, apparatus, equipment and the system of SD warning information |
| WO2019233386A1 (en) * | 2018-06-08 | 2019-12-12 | 华为技术有限公司 | Network communication method and device |
| CN111901181A (en) * | 2019-05-05 | 2020-11-06 | 中兴通讯股份有限公司 | Processing method for error rate detection and related equipment |
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| CN112468311A (en) * | 2019-09-09 | 2021-03-09 | ***通信有限公司研究院 | Protection switching method, node equipment and storage medium |
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Also Published As
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|---|---|
| JP2017518705A (en) | 2017-07-06 |
| CN105281931B (en) | 2019-11-29 |
| WO2015192518A1 (en) | 2015-12-23 |
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