CN101043270A - Optical transmission router and alarm processing method - Google Patents

Optical transmission router and alarm processing method Download PDF

Info

Publication number
CN101043270A
CN101043270A CNA2007100958580A CN200710095858A CN101043270A CN 101043270 A CN101043270 A CN 101043270A CN A2007100958580 A CNA2007100958580 A CN A2007100958580A CN 200710095858 A CN200710095858 A CN 200710095858A CN 101043270 A CN101043270 A CN 101043270A
Authority
CN
China
Prior art keywords
alarm
generation
elimination
eliminated
processing method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2007100958580A
Other languages
Chinese (zh)
Other versions
CN100596036C (en
Inventor
江巍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN200710095858A priority Critical patent/CN100596036C/en
Publication of CN101043270A publication Critical patent/CN101043270A/en
Priority to PCT/CN2008/070667 priority patent/WO2008122238A1/en
Application granted granted Critical
Publication of CN100596036C publication Critical patent/CN100596036C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications

Abstract

The invention provides a alarm processing method that comprises following steps: judging whether the times of generation and elimination is exceeded the preset surge generating threshold, if the times of generation and elimination is exceeded the preset surge generating threshold, judging the generation and elimination of alarm enters surge state, and the generation and elimination of alarm are not reported. The invention also provides a light transmission router. The invention realizes the identification of alarm surge of router link layer, so repeat start of system is avoided; the consumption of resource is decreased.

Description

Ons 15417 optical transport router ONS 15417 and alert processing method
Technical field
The present invention relates to the communications field, more specifically, relate to ons 15417 optical transport router ONS 15417 and alert processing method.
Background technology
Fig. 1 shows a kind of router link that adopts optical transmission of the prior art.In actual networking, it is that the traditional electrical transmission is uncommon that optical transmission has two situations: 1, burr, refer to that a certain moment transmitting warning produces again disappear immediately (the alarm duration approximately is tens milliseconds), when optical-fiber network such as upgrades at normal running, can produce burr; 2, vibration is meant that alarm produces disappearance repeatedly, can vibrate when plug light mouth or link occurs fault, after the change frequency that the alarm generation is eliminated surpasses certain thresholding, promptly enters oscillatory regime.Alarm burr and alarm vibration are as shown in Figure 2.
The traditional method of router is, the every generation of transmitting warning once, hardware chip can produce once to CPU and interrupt, software can think that link is unavailable, produces interface Down (shutdowns) incident, thereby initiation signaling software is done a series of processing; Transmitting warning one is eliminated, and software can think that link is available again, produces interface Up (startup) incident, does a series of processing thereby cause signaling software.Because burr and vibration are common phenomena on the router light mouth, above-mentioned traditional treatment method is just inapplicable.For burr, the user carries out normal network operation, does not wish that router is identified as link failure to it, and promptly router need not the perception burr.For vibration, in fact link is just unavailable, and router only needs that it is identified as interface Down and gets final product, and promptly need not repeated treatments interface Down/Up (this will cause the router cpu load too high).
A solution is provided in the correlation technique, has adopted method of counting to discern and suppress to alarm burr in server webmaster aspect.It adopts method of counting to suppress alarm, and major function is: 1, identification burr, thus suppress alarm; 2, the high priority alarm suppresses the low priority alarm.
This method is at equipment side network management alarm to be suppressed, thereby does not send a large amount of warning information to NM server.
Yet in this technical scheme, can not discern alarm and whether produce disappearance repeatedly, form vibration, so do not provide alarm vibration to produce the solution of eliminating, this causes restarting repeatedly of system, consumes excess resource.
Therefore, still need to develop a kind of suitable solution, can solve the problem in the above-mentioned correlation technique.
Summary of the invention
The present invention has aimed to provide a kind of ons 15417 optical transport router ONS 15417 and a kind of alert processing method, can not problem such as discern to the alarm vibration of router link layer to solve in the prior art.
One aspect of the present invention provides a kind of alert processing method, may further comprise the steps: whether the generation of judging ALM eliminates number of times above default vibration generation thresholding; If judge that then the generation elimination of alarm enters oscillatory regime, and do not report the generation elimination of alarm.
Another aspect of the present invention provides a kind of ons 15417 optical transport router ONS 15417, comprising: the light mouth, and the generation that is used to receive the alarm of optical transmission chain is eliminated; The vibration judge module is used to judge whether the generation elimination number of times of alarm surpasses default vibration generation thresholding; And reporting modules, be used for if judge that then the generation elimination of alarm enters oscillatory regime, and do not report the generation elimination of alarm.
Such scheme of the present invention provides eliminates the judgement whether number of times surpasses default vibration generation thresholding to the generation of ALM, thereby realized identification to the alarm vibration of router link layer, and then avoided restarting repeatedly of system, reduced resource consumption.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows a kind of router link that adopts optical transmission of the prior art;
Fig. 2 shows the curve chart of alarm burr and alarm vibration;
Fig. 3 shows the flow chart according to the alert processing method of the embodiment of the invention;
Fig. 4 shows the detail flowchart according to the alert processing method of the embodiment of the invention;
Fig. 5 has shown and has implemented the resulting alarm stationary value of alert processing method shown in Figure 4 variable condition;
Fig. 6 shows the block diagram according to the ons 15417 optical transport router ONS 15417 of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 3 shows the flow chart according to the alert processing method of the embodiment of the invention, and it may further comprise the steps:
Step S10 judges that whether the generation of ALM eliminates number of times above default vibration generation thresholding; And
Step S20 is if judge that then the generation elimination of alarm enters oscillatory regime, and do not report the generation elimination of alarm.
By surveying alarm vibration, thereby when the attendant plugs light mouth or optical network fault when causing alarm vibration, the vibration inhibit feature of router can correctly be discerned alarm vibration, and alarm suppressed, only declare that to upper layer software (applications) a link is unavailable, avoid restarting repeatedly of system, effectively to alleviate cpu load; When alarm vibration was eliminated, router can correctly be discerned, and normal to upper layer software (applications) declaration link-recovery.
Preferably, the embodiment of the invention provides a kind of and has judged whether the generation elimination number of times of ALM surpasses the scheme that default vibration produces thresholding, specifically comprise: the generation that at first will alarm is eliminated frequency and is converted into initial stationary value, stationary value decayed along with the time, in attenuation process, when the generation that once alarm takes place is eliminated, add a penalty value then for the stationary value after decaying, before stationary value decayed to null value, this attenuation process was proceeded; And whether more stable value produces thresholding greater than vibration.
In above-mentioned alert processing method, the speed of decay is: every a set time, stationary value decays to original half.
For example, threshold value is made as 10, frequency is eliminated in the generation of alarm be converted into initial stationary value 5, will the half-life be made as 3T, penalty value is made as 2.
When through 3T, stationary value reduces to 2.5, eliminates if the generation of once alarm takes place this moment, then adds penalty value 2, obtains stationary value 4.5.
When continuing to decay to 3.5, suppose to recur the generation elimination of 4 alarms, then stationary value rises to 3.5+2 * 4=11.5, because 11.5>10, so eliminating, the generation of identification alarm this moment entered oscillatory regime.Therefore no longer these generations of report alarm are eliminated, and directly system are changed to down state, to avoid restarting repeatedly of system.
The identification of burr is relative simple with filtration, and a given alarm duration thresholding in the embodiment of the invention is if the time that alarm continues less than thresholding, then is burr; If the alarm duration then is not a burr (being link occurs fault) greater than thresholding, it is unavailable to circulate a notice of link to upper layer software (applications).Specifically, before step S10, also can may further comprise the steps: judge whether alarm changes is burr; And if then filtered; Change otherwise regard it as alarm, enter and judge whether it is in the step of oscillatory regime.By the filtering alarm burr, just can reduce unnecessary the restarting of system.
When optical-fiber network carried out normal running generation burr, configuration router enabled the burr filtering function, makes not perception of router burr, thereby the protection IP network is normally moved.The alarm burr also can be used as simultaneously of normal use and replenishes, and safer guarantee is provided.
Above-mentioned alarm can be the light mouth that comes from ons 15417 optical transport router ONS 15417.Do not change if do not report alarm, then keeping the light mouth is former alarm state.
Fig. 4 shows the detail flowchart according to the alert processing method of the embodiment of the invention, as shown in Figure 4, may further comprise the steps:
S402: if the burr filtering function is opened, then walk burr filtration treatment flow process (S414), suppress handling process (S404) otherwise directly walk vibration.
S404: if alarm produces, then walk the handling process (S406) that alarm produces, otherwise walk the handling process (S410) that alarm is eliminated.
The handling process that the S406:(alarm produces).If the filtration timer relevant with this alarm do not opened (illustrating that this alarm is not in tracking mode), create a timer and follow the tracks of this alarm (S408).
S408: create a timer and follow the tracks of this alarm,, illustrate that then this alarm is not a burr if this alarm also is in the generation state timer expiry time.
The handling process that the S410:(alarm is eliminated).If start (reporting once before illustrate, alarm produces) with the relevant filtration timer of alarm, illustrate and in the burr thresholding time, received again and alarm elimination, meet burr and define, walk the S412 flow process; Otherwise directly walk vibration and suppress handling process.
S412: explanation is an alarm burr, need not continue to handle, and gets final product filtering the timer deletion.
S414: if the vibration inhibit feature is opened, then walk diagnosis and suppress handling process (S416), otherwise directly walk alarm customization flow process (S424).
S416: recomputate stationary value, computing formula is: stationary value=last stationary value * attenuation ratio (according to drawing attenuation ratio last computing time)+penalty value.
Each alarm all is provided with a stationary value, and stationary value is more little, and it is more little to illustrate that alarm produces the frequency of eliminating; Stationary value is big more, and it is big more to illustrate that alarm produces the frequency of eliminating.When stationary value surpasses certain thresholding, can judge that alarm enters oscillatory regime, this thresholding can be called and suppress thresholding (vibration produces thresholding), and at this moment, link is in down state, and alarm status changes no longer trigger link state variation; When stationary value is lower than certain thresholding, can judge the alarm vibration elimination, this thresholding can be described as reusable thresholding (thresholding is eliminated in vibration), and when alarm was in reusable state, alarm status changed trigger link state variation once more.
The alarm stationary value defaults to 0.Whenever alarm produces or eliminates, all add a fixed value to this alarm stationary value, this fixed value is penalty value.Above-mentioned stationary value can be taked the half-life damped method,, as long as the alarm stationary value is not 0, just is in the half-life attenuation state that is always, and promptly every a set time, the alarm stationary value decays to original half.The alarm stationary value can unrestrictedly not increase, and when alarming stationary value greater than certain fixed value, the alarm stationary value is pulled to fixed value and equates that this fixed value is maximum threshold.
S418: if stationary value surpasses maximum (maximum thresholding), illustrate that then this alarm is in holddown always, directly return and get final product (before returning, stationary value being dropped to maximum); Otherwise walk the S420 flow process.
S420: suppress thresholding if stationary value surpasses, illustrate that then this alarm meets the vibration definition, enter holddown (no longer down handling); Otherwise walk the S422 flow process.
S422:, then directly return (no longer down handling) if stationary value surpasses reusable thresholding and just was in holddown originally; Otherwise walk the S424 flow process.
S424: customization is done in alarm, whether determined to alarm the trigger interface state variation.
S426:, directly return if alarm not trigger interface state variation; Otherwise walk the S428 flow process.
S428: the new relevant signaling protocol of Interface status notice.
Fig. 5 has shown and has implemented the resulting alarm stationary value of alert processing method shown in Figure 4 variable condition.The alarm stationary value is initially 0, when the every generation of alarm status once changes (by producing elimination, perhaps producing from eliminating to), alarms stationary value and just adds a penalty value.After the alarm stationary value surpasses the inhibition thresholding, promptly enter oscillatory regime, any variation of alarming this time all will be suppressed, no longer upwards circular.If still variation was very frequent after alarm entered holddown, stationary value constantly increases, and then last stationary value can surpass the maximum thresholding, and stationary value will be evened up maximum threshold this moment.After a period of time, alarm no longer changes, and then stationary value is not stopped decay, until be lower than reusable thresholding, then alarm by oscillatory regime and reenters reusable state, and the alarm that produce this moment changes will be circulated a notice of upper layer software (applications).
The method that adopts a kind of half-life to decay among the above embodiment is discerned router light mouth alarm vibration and whether is produced elimination, can discern the vibration generation adaptively and eliminating; And adopt the wheel disc timer to follow the tracks of vibration, control system cpu load well under the alarm windstorm situation.
Realize that the key that the half-life decay is calculated is the decay timer.Because alarm windstorm can produce a large amount of alarms, the design of decay timer must be considered efficient, can not make cpu load excessive.
Fig. 6 shows the block diagram according to the ons 15417 optical transport router ONS 15417 of the embodiment of the invention, and it comprises: light mouth 10, and the generation that is used to receive the alarm of optical transmission chain is eliminated; Vibration judge module 20 is used to judge whether the generation elimination number of times of alarm surpasses default vibration generation thresholding; And reporting modules 30, be used for if judge that then the generation elimination of alarm enters oscillatory regime, and do not report the generation elimination of alarm.
Preferably, in above-mentioned ons 15417 optical transport router ONS 15417, also can comprise: be used for judging that alarm produces whether elimination is the burr state; And filtering module, be used for if do not report that then the generation of alarm is eliminated.
The present invention proposes the notion of alarm burr and alarm vibration, the former is applicable to Optical Transmission Network OTN upgrading scene, makes the router aspect stable, unaffected; The latter is applicable to the plug or the Optical Transmission Network OTN fault scenes of router light mouth, makes router avoid the processing pressure that alarm vibration brings.
Specifically: the method that adopts a kind of half-life to decay among the above embodiment is discerned router light mouth alarm vibration and whether is produced elimination, can discern vibration adaptively and producing elimination; And adopt the formation timer to follow the tracks of burr, control system cpu load well under the alarm windstorm situation.
From above description as can be seen, such scheme of the present invention has been realized the identification to the alarm vibration and the alarm burr of router link layer.
Detect alarm vibration by above-mentioned scheme, thereby when the attendant plugs light mouth or optical network fault when causing alarm vibration, the vibration inhibit feature of router can correctly be discerned alarm vibration, and alarm suppressed, only declare that to upper layer software (applications) a link is unavailable, effectively alleviate cpu load; When alarm vibration was eliminated, router can correctly be discerned, and normal to upper layer software (applications) declaration link-recovery.
By above-mentioned burr cancellation scheme, make that configuration router enables the burr filtering function, makes not perception of router burr when optical-fiber network carries out normal running generation burr, thereby the protection IP network is moved normally.The alarm burr also can be used as simultaneously of normal use and replenishes, and safer guarantee is provided.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.Should be understood that the variation in these concrete enforcements is conspicuous for a person skilled in the art, do not break away from spiritual protection range of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an alert processing method is characterized in that, may further comprise the steps:
Whether the generation elimination number of times of judging ALM surpasses default vibration generation thresholding;
If judge that then the generation elimination of described alarm enters oscillatory regime, and do not report the generation elimination of described alarm.
2. alert processing method according to claim 1 is characterized in that, judges whether the generation elimination number of times of ALM specifically comprises above default vibration generation thresholding:
At first frequency is eliminated in the generation of described alarm and be converted into initial stationary value, described stationary value decayed along with the time, in attenuation process, when the generation that once described alarm takes place is eliminated, add a penalty value then for the stationary value after decaying, before stationary value decayed to null value, described attenuation process was proceeded; And
Whether more described stationary value produces thresholding greater than described vibration.
3. alert processing method according to claim 2 is characterized in that, the speed of described decay is: every a set time, described stationary value decays to original half.
4. alert processing method according to claim 1 is characterized in that, and is further comprising the steps of before whether the generation elimination of judging alarm is in oscillatory regime:
Whether the generation elimination of judging described alarm is the burr state; And
If do not report that then the generation of described alarm is eliminated.
5. alert processing method according to claim 4 is characterized in that, whether the generation of judging described alarm is eliminated and be may further comprise the steps for the burr state:
The generation elimination of judging described alarm is that alarm produces or alarm is eliminated;
If it is that alarm produces that the generation of described alarm is eliminated, then described alarm is advanced the default formation with timer; If before described timer expiry, what receive is that alarm is eliminated, and described formation then releases described formation with the alarm of described correspondence when having corresponding alarm, and the generation of judging described alarm to eliminate be the burr state.
6. alert processing method according to claim 5 is characterized in that, and is further comprising the steps of:
Behind described timer expiry, check whether alarm is eliminated described in the described formation; If eliminate, judge that then it is the burr state that described alarm produces elimination.
7. according to each described alert processing method in the claim 1 to 6, it is characterized in that described alarm comes from the light mouth of ons 15417 optical transport router ONS 15417.
8. alert processing method according to claim 7 is characterized in that, and is further comprising the steps of:
Do not eliminate if do not report the generation of described alarm, then keeping described light mouth is former alarm state.
9. an ons 15417 optical transport router ONS 15417 is characterized in that, comprising:
The light mouth, the generation that is used to receive the alarm of optical transmission chain is eliminated;
The vibration judge module is used to judge whether the generation elimination number of times of described alarm surpasses default vibration generation thresholding; And
Reporting modules is used for if judge that then the generation elimination of described alarm enters oscillatory regime, and do not report the generation elimination of described alarm.
10. ons 15417 optical transport router ONS 15417 according to claim 9 is characterized in that, also comprises:
The burr judge module is used to judge that described alarm produces whether elimination is the burr state; And
Filtering module is used for if do not report that then the generation of described alarm is eliminated.
CN200710095858A 2007-04-10 2007-04-10 Optical transmission router and alarm processing method Expired - Fee Related CN100596036C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200710095858A CN100596036C (en) 2007-04-10 2007-04-10 Optical transmission router and alarm processing method
PCT/CN2008/070667 WO2008122238A1 (en) 2007-04-10 2008-04-03 Optical transmission router and alarm processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710095858A CN100596036C (en) 2007-04-10 2007-04-10 Optical transmission router and alarm processing method

Publications (2)

Publication Number Publication Date
CN101043270A true CN101043270A (en) 2007-09-26
CN100596036C CN100596036C (en) 2010-03-24

Family

ID=38808519

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200710095858A Expired - Fee Related CN100596036C (en) 2007-04-10 2007-04-10 Optical transmission router and alarm processing method

Country Status (2)

Country Link
CN (1) CN100596036C (en)
WO (1) WO2008122238A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008122238A1 (en) * 2007-04-10 2008-10-16 Huawei Technologies Co., Ltd. Optical transmission router and alarm processing method
CN101222361B (en) * 2008-01-22 2010-07-14 中兴通讯股份有限公司 Alarm frequency monitor and alarm processing method
CN101800673A (en) * 2010-02-03 2010-08-11 中兴通讯股份有限公司 Method and device of bidirectional forwarding detection (BFD) oscillation damping
CN101345656B (en) * 2008-08-25 2011-12-28 中兴通讯股份有限公司 global fault rate measuring method
CN101800694B (en) * 2009-09-16 2012-07-25 福建星网锐捷网络有限公司 Resource warning processing method and routing switching equipment
CN103795459A (en) * 2013-11-22 2014-05-14 青岛海信宽带多媒体技术有限公司 Optical module-based fault processing method, device and optical module
CN105467900A (en) * 2015-12-31 2016-04-06 广州创想科技股份有限公司 Monitoring system transient warning elimination method and elimination device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112532421B (en) * 2020-10-27 2023-12-22 南京国电南自电网自动化有限公司 Channel state on-line sensing and multiplexing unit, device and method based on FPGA

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061293A1 (en) * 2004-12-20 2006-06-22 Mag & More Gmbh Magnetic neurostimulator
KR20050090330A (en) * 2005-08-16 2005-09-13 차윤원 Rf repeater oscillation detection and monitoring module for mobile communication and wibro system
CN101132589B (en) * 2006-08-24 2010-12-08 中兴通讯股份有限公司 Oscillation alarm processing method
CN100596036C (en) * 2007-04-10 2010-03-24 华为技术有限公司 Optical transmission router and alarm processing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008122238A1 (en) * 2007-04-10 2008-10-16 Huawei Technologies Co., Ltd. Optical transmission router and alarm processing method
CN101222361B (en) * 2008-01-22 2010-07-14 中兴通讯股份有限公司 Alarm frequency monitor and alarm processing method
CN101345656B (en) * 2008-08-25 2011-12-28 中兴通讯股份有限公司 global fault rate measuring method
CN101800694B (en) * 2009-09-16 2012-07-25 福建星网锐捷网络有限公司 Resource warning processing method and routing switching equipment
CN101800673A (en) * 2010-02-03 2010-08-11 中兴通讯股份有限公司 Method and device of bidirectional forwarding detection (BFD) oscillation damping
CN101800673B (en) * 2010-02-03 2014-04-30 中兴通讯股份有限公司 Method and device of bidirectional forwarding detection (BFD) of oscillation damping
CN103795459A (en) * 2013-11-22 2014-05-14 青岛海信宽带多媒体技术有限公司 Optical module-based fault processing method, device and optical module
CN105467900A (en) * 2015-12-31 2016-04-06 广州创想科技股份有限公司 Monitoring system transient warning elimination method and elimination device
CN105467900B (en) * 2015-12-31 2018-08-31 广州创想科技股份有限公司 A kind of monitoring system dodges the removing method and device of announcement

Also Published As

Publication number Publication date
CN100596036C (en) 2010-03-24
WO2008122238A1 (en) 2008-10-16

Similar Documents

Publication Publication Date Title
CN101043270A (en) Optical transmission router and alarm processing method
CN1826591A (en) Reverse path forwarding protection
CN1859075A (en) Method for detecting link disturbing code configuration conformance
CN1916858A (en) Monitoring methd, monitoring equipment in system with multiple cores, and multiple cores system
CN1834909A (en) Updating method for distance equipment system software
CN1133298C (en) Capture producing method for controlling simple network management agreement
CN1503508A (en) Fault coherence analysis of network management system and implement method
CN1968278A (en) Data packet content analysis and processing method and system
CN1808971A (en) Method and system of implementing secure communication between internal and external computer networks based on simplex communication principle
CN101076174A (en) Method for processing warn windstorm
CN101826249B (en) Extendible alarm management system and intelligent device alarm method
CN1716212A (en) System and method for recovery from disaster
CN106933658A (en) The method and apparatus of the anti-kill of background process in a kind of operating system
CN101656622A (en) Alarm management system and alarm management method
CN1901467A (en) Method and system for quick processing warning
CN101079890A (en) A method and device for generating characteristic code and identifying status machine
CN1479461A (en) Communication system fault diagnosis method and system
CN101064636A (en) Method for filtering alarm between network administration system and network element administrative system
CN1904846A (en) Configuration of recovery device and method thereof
CN1885750A (en) Far-end RF module and its method for transmitting signal
CN1859150A (en) Communication link system and its method with protective function
CN1967474A (en) A method for protecting EMS memory and its system
CN1299459C (en) Channel sharing ring protection supported protection switching protocol implementing method
CN1521990A (en) Fully dynamic distributed network service management system and service method thereof
CN1266780C (en) Luminous device with dependent voltage/resistance layer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100324

Termination date: 20150410

EXPY Termination of patent right or utility model