CN103312411A - Method and device for detecting fault of optical fiber link - Google Patents
Method and device for detecting fault of optical fiber link Download PDFInfo
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- CN103312411A CN103312411A CN2013102096663A CN201310209666A CN103312411A CN 103312411 A CN103312411 A CN 103312411A CN 2013102096663 A CN2013102096663 A CN 2013102096663A CN 201310209666 A CN201310209666 A CN 201310209666A CN 103312411 A CN103312411 A CN 103312411A
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Abstract
Embodiments of the invention provide a method and a device for detecting the fault of an optical fiber link. The method for detecting the fault of the optical fiber link provided by the invention comprises the following steps of: obtaining the light power of a light module in home-terminal equipment and the light power of a light module in opposite-terminal equipment to be respectively taken as a light power reference value corresponding to the normal work state of the link; obtaining the light power of the light module in the home-terminal equipment and the light power of the light module in the opposite-terminal equipment to be respectively taken as a light power fault value when the link is detected to be abnormal; and detecting an optical fiber link fault happening point based on a fault detecting rule according to the light power reference values and the light power fault values of the light modules in the home-terminal equipment and the opposite-terminal equipment. According to the embodiments of the invention, the light power reference values and the light power fault values of the light modules in the equipment are obtained, and the precise detection of the optical fiber link fault happening point is realized based on the fault detecting rule, so that the problem that the fault happening point can not be precisely positioned when the optical fiber link breaks down can be solved.
Description
Technical field
The embodiment of the invention relates to optical communication technique, relates in particular to a kind of optical fiber link fault detection method and device.
Background technology
In recent years, along with the optical fiber cost descends, and the extensive utilization of 1G Base, 10G Base Ethernet and fiber channel (Fiber Channel is called for short FC) network, optical fiber connects has become the important component part that interconnects between communication equipment gradually.
Fig. 1 is existing typical communication equipment optical fiber interconnections figure, and as shown in Figure 1: link to each other by optical fiber between the optical module A of first communication equipment and the optical module B of second communication equipment, optical fiber is generally 1 pair, is responsible for respectively receiving, transmission data service message.Simultaneously, be connected by management network port between first communication equipment, second communication equipment and the management equipment, carry out protocol transmission and control, so that business and control are separated, connect communication as the management network port A of first communication equipment, the management network port B of second communication equipment and the management network port C of management equipment by Ethernet.In real work, fibre-optical bending excessively, optical fiber pressurized or fracture, joint pollute and the joint loose contact, and perhaps optical module uses its transmission, receiver module mistake for a long time, all can cause the optical link fault.
At present, though optical module generally uses intelligent optical module, namely with the optical module of numerical diagnostic function, whether the transmitting optical power and the received optical power that detect optical module in real time be normal, judges with this whether optical module breaks down.But when optical fiber link breaks down, still can't accurately determine the end and be fiber failure or butt joint two optical modules which break down.As among Fig. 1 if optical module A received optical power exceed threshold value, might be opposite end optical module B transmitting optical power exceed threshold value or be connected optical module A and optical module B between fiber failure cause.If when detecting optical module A received optical power when undesired, judge optical module A fault simply, might cause erroneous judgement, bring great inconvenience to maintenance work.
Summary of the invention
The embodiment of the invention provides a kind of optical fiber link fault detection method and device, and when breaking down to solve optical fiber link, the accurate problem of fault location origination point is safeguarded fault fast realizing, recovers professional as early as possible and normally moves.
First aspect, the embodiment of the invention provides a kind of optical fiber link fault detection method, comprising: corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fiducial value;
Detect link and take place when unusual, obtain the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fault value;
Luminous power fiducial value and luminous power fault value according to optical module in described local terminal equipment and the opposite equip. go out optical fiber link failure origination point based on the fault detect rule detection.
In first kind of first aspect possible implementation, corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., comprise: when detecting the link operate as normal, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., to obtain the luminous power of optical module in described local terminal equipment and the opposite equip. respectively;
Detecting link takes place when unusual, obtain the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., comprise: detect link and take place when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively.
In second kind of first aspect possible implementation, described corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., as the luminous power fiducial value, comprising respectively:
Obtain the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., in described operate as normal reference optical power, select described luminous power fiducial value.
According to first aspect, first aspect first kind to any one of second kind of possible implementation, in the third possible implementation of first aspect, the described luminous power of obtaining the optical module in the opposite equip. comprises:
Receive the luminous power of the optical module of described opposite equip. by the management network port of described local terminal equipment and opposite equip.; Or,
By between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..
According to first aspect, first aspect first kind to any one of second kind of possible implementation, in the 4th kind of possible implementation of first aspect, the luminous power of obtaining optical module in the local terminal equipment comprises:
Bottom hardware by described local terminal equipment reads the luminous power that agreement is obtained optical module in the described local terminal equipment.
In the 5th kind of possible implementation of first aspect, described luminous power fiducial value and luminous power fault value according to optical module in described local terminal equipment and the opposite equip. detect before the optical fiber link fault origination point, also comprise:
Luminous power fiducial value according to optical module in default fault deviation threshold and described local terminal equipment and the opposite equip. generates the fault detect rule.
According to first aspect, first aspect first kind to any one of the 5th kind of possible implementation, in the 6th kind of possible implementation of first aspect, the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power.
The 6th kind of possible implementation according to first aspect, in the 7th kind of possible implementation of first aspect, according to luminous power fiducial value and the luminous power fault value of optical module in described local terminal equipment and the opposite equip., go out optical fiber link failure origination point based on the fault detect rule detection and comprise:
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be less than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the local terminal equipment;
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value less than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be greater than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the opposite equip..
Second aspect, the embodiment of the invention provide a kind of optical fiber link failure detector, comprising: acquisition module, be used for corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fiducial value;
Described acquisition module also for detection of taking place to link when unusual, obtains the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fault value;
Detection module is used for luminous power fiducial value and luminous power fault value according to described local terminal equipment and opposite equip. optical module, goes out optical fiber link failure origination point based on the fault detect rule detection.
In first kind of second aspect possible implementation, described acquisition module, specifically for detection of when the link operate as normal, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., to obtain the luminous power of optical module in described local terminal equipment and the opposite equip. respectively;
Described acquisition module, specifically also for detection of taking place to link when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively.
In second kind of second aspect possible implementation, described acquisition module specifically is used for:
Obtain the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., in described operate as normal reference optical power, select described luminous power fiducial value.
According to second aspect, second aspect first kind to any one of second kind of possible implementation, in the third possible implementation of second aspect, described acquisition module specifically is used for:
Receive the luminous power of the optical module of described opposite equip. by the management network port of described local terminal equipment and opposite equip.; Or,
By between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..
According to second aspect, second aspect first kind to any one of second kind of possible implementation, in the 4th kind of possible implementation of second aspect, described acquisition module specifically is used for:
Bottom hardware by described local terminal equipment reads the luminous power that agreement is obtained optical module in the described local terminal equipment.
In the 5th kind of possible implementation of second aspect, also comprise:
Generation module, be used for described luminous power fiducial value and luminous power fault value according to described local terminal equipment and opposite equip. optical module, detect before the optical fiber link fault origination point, luminous power fiducial value according to optical module in default fault deviation threshold and described local terminal equipment and the opposite equip. generates the fault detect rule.
According to second aspect, second aspect first kind to any one of the 5th kind of possible implementation, in the 6th kind of possible implementation of second aspect, the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power.
According to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, described detection module specifically is used for:
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be less than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the local terminal equipment;
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value less than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be greater than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the opposite equip..
A kind of optical fiber link fault detection method of the embodiment of the invention and device, luminous power fiducial value and fault detect judgment rule by the optical module in luminous power fault value, link local terminal and the opposite equip. of the optical module in link local terminal and the opposite equip., realize quick positioning optical waveguides link failure origination point, when solving optical fiber link and breaking down, the accurate problem of fault location origination point.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing typical communication equipment optical fiber interconnections figure;
Fig. 2 is the schematic flow sheet of optical fiber link fault detection method embodiment one of the present invention;
Fig. 3 is the schematic flow sheet of optical fiber link fault detection method embodiment two of the present invention;
Fig. 4 is the schematic flow sheet of optical fiber link fault detection method embodiment three of the present invention;
Fig. 5 is the structural representation of optical fiber link failure detector embodiment one of the present invention;
Fig. 6 is the structural representation of optical fiber link failure detector embodiment two of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 2 is the schematic flow sheet of optical fiber link fault detection method embodiment one of the present invention, and the fault detection method of present embodiment is applicable to the equipment that connects by optical fiber link arbitrarily, mainly is detected as the fault whether of the optical fiber link between two equipment that connect.This method can be realized that this device is realized by software and/or hardware mode, is configured in each equipment by the optical fiber link failure detector.The method of present embodiment can be carried out by the equipment that optical fiber link connects by any one, and this equipment is called local terminal equipment, and the equipment that the optical fiber link opposite end connects is called opposite equip..As shown in Figure 2, this method may further comprise the steps:
In this step, optical fiber link all is can operate as normal in the certain scope of described luminous power fiducial value, suppose that the luminous power fiducial value is-9.0dBm, then-9.0dBm ± 10% scope in, optical fiber link can operate as normal.
Cause the unusual reason of link to have a lot, such as: fibre-optical bending excessively, optical fiber pressurized or fracture, joint pollutes and joint loose contact or optical module are long-term uses etc.;
Detect the unusual means of link generation and can adopt the mistake of statistics data message, perhaps utilize procotol, as the loop detection agreement, do not receive the loop detection protocol massages in certain period period, it is unusual to judge that then link takes place; Take place when unusual when detecting link, the optical module in the both link ends equipment receives, and the light signal of generation belongs to fault-signal, and the luminous power that obtain this moment is the luminous power fault value.
In this step, described fault detect rule is the normative reference according to the luminous power fiducial value of optical module and the self-defining failure judgement of luminous power fault value, such as can described fault detect rule being defined as a tabulation, in tabulation, set multiple judgment rule combination, a judged result is arranged, i.e. optical fiber link fault origination point under every kind of combination; Optical fiber link fault origination point can be the optical module of local terminal equipment, and the optical module of opposite equip. is connected two optical fiber between the optical module.
In prior art, when optical fiber link breaks down, can't accurately determine the end and be which problem of breaking down of two optical modules of fiber failure or butt joint, present embodiment, luminous power fiducial value and fault detect judgment rule by the optical module in luminous power fault value, link local terminal and the opposite equip. of the optical module in link local terminal and the opposite equip., realize quick positioning optical waveguides link failure origination point, when solving optical fiber link and breaking down, the accurate problem of fault location origination point.
Fig. 3 is the schematic flow sheet of optical fiber link fault detection method embodiment two of the present invention, present embodiment is on the basis of a last embodiment, increase the specific implementation method of the luminous power of obtaining the optical module in local terminal equipment and the opposite equip., as shown in Figure 3, may further comprise the steps:
In this step, the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power;
Code stream for fear of sending and receive different length may cause the optical power value difference.Therefore the operational trials code stream of described setting is set to the signal code stream of regular length, and this regular length can be according to the service signal setting of reality, is the best with the signal that meets near normal operating conditions.
The luminous power of the optical module that obtains in this step is in order to form relatively with step 301, when link occurs fault, the same operational trials code stream that sends described setting also is the luminous power fault value of optical module to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively.
The luminous power fiducial value of optical module generates the fault detect rule in the fault deviation threshold that step 303, basis are preset and described local terminal equipment and the opposite equip.;
The default fault deviation threshold of the described basis of this step can be obtained according to real work situation mensuration or sampling, in real work, if the luminous power fiducial value with optical module is benchmark, can both operate as normal in ± 15% scope, then the fault deviation threshold that can preset is set to 15% of luminous power fiducial value.
Present embodiment, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., obtain the fiducial value and the fault value that dock optical module in described local terminal equipment and the opposite equip., realization is according to luminous power fiducial value and the luminous power fault value of optical module in described local terminal equipment and the opposite equip., go out optical fiber link failure origination point based on the fault detect rule detection, solve in the prior art, accurately the problem of positioning optical waveguides link failure origination point.
On the base station of present embodiment, preferably, among the step 301-302, described management network port by described local terminal equipment and opposite equip. receives the luminous power of the optical module of described opposite equip.; Or, by between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..By selecting network interface or optical fiber to send the luminous power of obtaining, the flexibility of luminous power mode is obtained in realization, such as carrying out unified management and detection to the light module in communication equipment working condition of its management as if management equipment, then communication equipment, management equipment realize the luminous power data sharing of optical module by management network port.If management equipment does not need the light module in communication equipment working condition of its management is carried out unified management and detection, the optical fiber that connects between then communication equipment directly passes through sends optical module luminous power data, improves the efficient of transfer of data.
Fig. 4 is the schematic flow sheet of optical fiber link fault detection method embodiment three of the present invention, and present embodiment is optimized on the basis of a last embodiment, as shown in Figure 4, comprising:
Step 401, obtain the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., in described operate as normal reference optical power, select described luminous power fiducial value;
Wherein, the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power;
Numerical diagnostic optical module generally all arranges the operate as normal reference optical power at internal register when dispatching from the factory, this step is considered as the luminous power of Default Value the optical power value of normal operating conditions, by directly obtaining the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., selected described luminous power fiducial value, avoid only when detecting the link operate as normal, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., just can obtain the luminous power of optical module in described local terminal equipment and the opposite equip..When solving as if optical module insertion equipment,, can't obtain link failure the problem of the luminous power fiducial value of optical module by the operational trials code stream of sending out setting mutually with regard to taking place.
Step 402, detect link and take place when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively;
The optical module that present embodiment uses is the intelligent optical module of band numerical diagnostic function, so equipment can read the luminous power that agreement is obtained optical module in the described local terminal equipment, for example I2C agreement by the bottom hardware of described local terminal equipment.
The luminous power fiducial value of optical module generates the fault detect rule in the fault deviation threshold that step 403, basis are preset and described local terminal equipment and the opposite equip.;
Described default fault deviation threshold is that the default fault deviation threshold of described basis can be obtained according to real work situation mensuration or sampling.Be example with Fig. 1, at first obtain transmitting optical power (TXA_POWER_INI, TXB_POWER_INI) and the received optical power (RXA_POWER_INI, RXB_POWER_INI) of optical module A and optical module B, situation according to real work, it is 10% that the fault deviation threshold is set, and then can generate as following table 1 as the fault detect rule;
Wherein "〉〉 " be that deviation is greater than certain threshold value, as 10%; "＜＜" be that deviation is less than certain threshold value, as 10%; " ≈ " is that deviation is in certain threshold value, as 10%; " ≠ " be certain threshold value for deviation is greater than or less than, as 10%.
Table 1
Step 404, based on the fault detect rule, judge that whether the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value is greater than the transmitting optical power deviation threshold; If, then carry out step 405, if not, then carry out step 407;
In the above-mentioned steps, calculate the transmitting optical power fiducial value of described local terminal equipment and the deviation of transmitting optical power fault value, according to the fault detect rule, mate; Whether judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold,
Whether the deviation of step 405, the received optical power fiducial value of judging described local terminal equipment and received optical power fault value is less than the received optical power deviation threshold; If then carry out step 406; If not, all there is fault in the optical module that then detects two ends;
Step 406, to detect the fault origination point be optical module in the local terminal equipment, and testing process finishes;
In this step, according to step 404 and 405, as can be known, the optical module transmitting optical power of local terminal equipment is under the abnormal operating state, and received optical power is under the normal operating conditions, then can judge, the light signal that the opposite end optical module sends is no problem, the light signal existing problems that the local terminal optical module sends namely detect the fault origination point and are the optical module in the local terminal equipment;
Whether the deviation of step 407, the received optical power fiducial value of judging described local terminal equipment and received optical power fault value is less than the received optical power deviation threshold; If not, then carry out step 408; If then detect the optical fiber that connects the two ends optical module and have fault;
Step 408, to detect the fault origination point be optical module in the opposite equip., and testing process finishes.
In this step, according to step 404 and 407, as can be known, the optical module transmitting optical power of local terminal equipment is under the normal operating conditions, and received optical power is under the abnormal operating state, then can judge, the light signal existing problems that the opposite end optical module sends, the light signal that the local terminal optical module sends is no problem, namely detects the fault origination point and be the optical module in the opposite equip.;
Present embodiment by obtaining reception and the transmitting optical power of optical module in described local terminal equipment and the opposite equip., according to luminous power fiducial value and fault detect rule, is realized network operation and the fault location of fast and flexible.
Fig. 5 is the structural representation of optical fiber link failure detector embodiment one of the present invention, and this device is integrated in the equipment the inside that optical fiber link connects usually, and as shown in Figure 5, this device comprises:
Described acquisition module 51 also for detection of taking place to link when unusual, obtains the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fault value;
The device of present embodiment, for the technical scheme of carrying out method embodiment shown in Figure 2, its realization principle and technique effect are similar, repeat no more herein.
Fig. 6 is the structural representation of optical fiber link failure detector embodiment two of the present invention, as shown in Figure 6, present embodiment is on a last embodiment basis, further, described acquisition module 51, specifically for detection of when the link operate as normal, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., to obtain the luminous power of optical module in described local terminal equipment and the opposite equip. respectively; Described acquisition module 51, specifically also for detection of taking place to link when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively;
This device, also comprise: generation module 61, be used for described luminous power fiducial value and luminous power fault value according to described local terminal equipment and opposite equip. optical module, detect before the optical fiber link fault origination point, luminous power fiducial value according to optical module in default fault deviation threshold and described local terminal equipment and the opposite equip. generates the fault detect rule.
Alternatively, on the basis of present embodiment, described acquisition module 51 specifically is used for: obtain the operate as normal reference optical power of the optical module Default Value of local terminal equipment and opposite equip., select described luminous power fiducial value in described operate as normal reference optical power.
Further, on the basis of present embodiment, described acquisition module 51 specifically is used for: the luminous power that receives the optical module of described opposite equip. by the management network port of described local terminal equipment and opposite equip.; Or, by between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..
Particularly, on the basis of present embodiment, described acquisition module 51 specifically is used for: the bottom hardware by described local terminal equipment reads the luminous power that agreement is obtained described local terminal equipment optical module.
Further, on the basis of present embodiment, the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power.
Particularly, on the basis of present embodiment, described detection module 52, specifically be used for: based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be less than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the local terminal equipment; Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value less than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be greater than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the opposite equip..
Above-described embodiment device can be carried out the optical fiber link fault detection method that any embodiment of the present invention provides, and its realization principle and technique effect are similar, repeat no more herein.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although the present invention has been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (16)
1. an optical fiber link fault detection method is characterized in that, comprising:
Corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fiducial value;
Detect link and take place when unusual, obtain the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fault value;
Luminous power fiducial value and luminous power fault value according to optical module in described local terminal equipment and the opposite equip. go out optical fiber link failure origination point based on the fault detect rule detection.
2. method according to claim 1 is characterized in that:
Corresponding to the link normal operating conditions, obtain the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., comprise: when detecting the link operate as normal, send out the operational trials code stream of setting mutually by described local terminal equipment and opposite equip., to obtain the luminous power of optical module in described local terminal equipment and the opposite equip. respectively;
Detecting link takes place when unusual, obtain the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., comprise: detect link and take place when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively.
3. method according to claim 1 is characterized in that, and is described corresponding to the link normal operating conditions, obtains the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., as the luminous power fiducial value, comprising respectively:
Obtain the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., in described operate as normal reference optical power, select described luminous power fiducial value.
4. according to the arbitrary described method of claim 1-3, it is characterized in that the described luminous power of obtaining the optical module in the opposite equip. comprises:
Receive the luminous power of the optical module of described opposite equip. by the management network port of described local terminal equipment and opposite equip.; Or,
By between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..
5. according to the arbitrary described method of claim 1-3, it is characterized in that the luminous power of obtaining optical module in the local terminal equipment comprises:
Bottom hardware by described local terminal equipment reads the luminous power that agreement is obtained optical module in the described local terminal equipment.
6. method according to claim 1 is characterized in that, described luminous power fiducial value and luminous power fault value according to optical module in described local terminal equipment and the opposite equip. detect before the optical fiber link fault origination point, also comprise:
Luminous power fiducial value according to optical module in default fault deviation threshold and described local terminal equipment and the opposite equip. generates the fault detect rule.
7. according to the arbitrary described method of claim 1-6, it is characterized in that the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power.
8. method according to claim 7 is characterized in that, according to luminous power fiducial value and the luminous power fault value of optical module in described local terminal equipment and the opposite equip., goes out optical fiber link failure origination point based on the fault detect rule detection and comprises:
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be less than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the local terminal equipment;
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value less than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be greater than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the opposite equip..
9. an optical fiber link failure detector is characterized in that, comprising:
Acquisition module is used for corresponding to the link normal operating conditions, obtains the luminous power of optical module in the local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fiducial value;
Described acquisition module also for detection of taking place to link when unusual, obtains the luminous power of optical module in the described local terminal equipment, and the luminous power of obtaining optical module in the opposite equip., respectively as the luminous power fault value;
Detection module is used for luminous power fiducial value and luminous power fault value according to described local terminal equipment and opposite equip. optical module, goes out optical fiber link failure origination point based on the fault detect rule detection.
10. device according to claim 9 is characterized in that:
Described acquisition module specifically for detection of when the link operate as normal, is sent out the operational trials code stream of setting by described local terminal equipment and opposite equip., mutually to obtain the luminous power of optical module in described local terminal equipment and the opposite equip. respectively;
Described acquisition module, specifically also for detection of taking place to link when unusual, the operational trials code stream of sending out setting mutually described by described local terminal equipment and opposite equip. is to obtain the luminous power of the optical module in described local terminal equipment and the opposite equip. respectively.
11. device according to claim 9 is characterized in that, described acquisition module specifically is used for:
Obtain the operate as normal reference optical power of the optical module Default Value in local terminal equipment and the opposite equip., in described operate as normal reference optical power, select described luminous power fiducial value.
12. according to the arbitrary described device of claim 9-11, it is characterized in that described acquisition module specifically is used for:
Receive the luminous power of the optical module of described opposite equip. by the management network port of described local terminal equipment and opposite equip.; Or,
By between described local terminal equipment and the described opposite equip. except the optical fiber link that breaks down any one road optical fiber link receive the luminous power of the optical module of described opposite equip..
13. according to the arbitrary described device of claim 9-11, it is characterized in that described acquisition module specifically is used for:
Bottom hardware by described local terminal equipment reads the luminous power that agreement is obtained optical module in the described local terminal equipment.
14. device according to claim 9 is characterized in that, also comprises:
Generation module, be used for described luminous power fiducial value and luminous power fault value according to described local terminal equipment and opposite equip. optical module, detect before the optical fiber link fault origination point, luminous power fiducial value according to optical module in default fault deviation threshold and described local terminal equipment and the opposite equip. generates the fault detect rule.
15. according to the arbitrary described device of claim 9-14, it is characterized in that the luminous power of described optical module comprises: the received optical power of optical module and transmitting optical power.
16. device according to claim 15 is characterized in that, described detection module specifically is used for:
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value greater than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be less than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the local terminal equipment;
Based on the fault detect rule, if judge the deviation of the transmitting optical power fiducial value of described local terminal equipment and transmitting optical power fault value less than the transmitting optical power deviation threshold, and the received optical power fiducial value of described local terminal equipment and the deviation of received optical power fault value be greater than the received optical power deviation threshold, then detects the fault origination point and be the optical module in the opposite equip..
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