CN101989933A - Method and system for failure detection - Google Patents
Method and system for failure detection Download PDFInfo
- Publication number
- CN101989933A CN101989933A CN2009100902334A CN200910090233A CN101989933A CN 101989933 A CN101989933 A CN 101989933A CN 2009100902334 A CN2009100902334 A CN 2009100902334A CN 200910090233 A CN200910090233 A CN 200910090233A CN 101989933 A CN101989933 A CN 101989933A
- Authority
- CN
- China
- Prior art keywords
- veneer
- traffic identification
- master control
- message
- control veneer
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
The invention discloses a method for failure detection. The method comprises the following steps of: periodically sending a notification message to a main control single board through a service identification veneer so that the main control single board judges the physical state of the service identification veneer in time, and a service is quickly switched to ensure the normal running of the service when the service identification single board goes wrongs; and after the service is switched, periodically sending a recovery message by the main control single board, when the service identification veneer recovers from the failure, sending a response message and switching the service to the service identification veneer for service identification by the main control single board. The invention discloses a system for failure detection. By utilizing the method and the system, the purposes of actively detecting failures and improving a failure detection speed can be achieved by the service identification veneer, the fast switching of the service is realized and the normal running of the service is ensured.
Description
Technical field
The present invention relates to the computer network communication technology field, the method and system that particularly a kind of network equipment failure detects.
Background technology
Continuous expansion along with network size, network management is for lean operation, the requirement of professional inhibition, network safety prevention and network and service resource management is also more and more higher without approval, this has impelled the development of traffic identification and network management system, but the safe robustness for network management system requires corresponding the raising, realizes that on the equipment aspect switching fast of traffic identification veneer is a kind of practicable method that improves security of system in the network equipment.
The network equipment comprises traffic identification veneer, master control veneer, switching board and a plurality of service board, and as shown in Figure 1, the traffic identification veneer is used for carrying out traffic identification, to judge the fail safe and the reliability of business tine; Master control veneer, professional conversion between above each veneer of major control; Service board is used for carrying common business, and as business such as online, IPTV, video conferences, a service board can carry a plurality of business simultaneously; Switching board, more than between each veneer professional transmission all realize by switching board.
At present, in the network equipment for business can safe and reliablely be moved, normally all the professional serials that need discern are carried out traffic identification by the traffic identification veneer by master control veneer, the identification field of traffic identification veneer by being provided with, comprise information such as query contents, key word of the inquiry, identify this professional type, judge this professional content whether safely, reliably; After definite this business is reliable, by switching board business is sent to the enterprising industry of service board again and be engaged in handling.This kind mode is controlled direct convenience, can realize control strategy and QOS quality assurance eaily, but this kind mode makes the traffic identification veneer become the bottleneck parts of the whole network equipment easily, very high to traffic identification veneer safety requirements, if the traffic identification veneer breaks down, then can cause the service disconnection of the whole network equipment.
The fault detection method of current operation identification veneer adopts heartbeat detecting method, this detection method sends heartbeat message by the regular active of the master control veneer of the network equipment to the traffic identification veneer, the traffic identification veneer sends response message according to the heartbeat message of passive reception to master control veneer, if master control veneer is received the response message that the traffic identification veneer is replied, show that then the traffic identification single board state is normal, otherwise show and break down, the major defect of this method is: the fault discovery cycle is long, promptly according to the heartbeat detection method, usually the cycle of master control veneer transmission heartbeat message is about half a minute, make that the cycle of fault discovery is longer, do not reach the purpose of fast detecting fault.
In addition, also there is following defective in above method:
1, testing result imperfection: the heartbeat detection method can only detect the part hardware fault in the traffic identification veneer, and can not detect by the method for situations such as traffic failures.
When 2, the traffic identification veneer is found fault, can not initiatively initiate to detect, can't find fault fast by the traffic identification veneer.
3, lack recovery mechanism: the business recovery of traffic identification veneer can not be judged with this method.
Because the above-mentioned defective of heartbeat detecting method, cause its can not fast detecting to the fault of traffic identification veneer, make service disconnection.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of network equipment failure detection, makes the traffic identification veneer can initiatively find fault, to improve the fault detect speed of traffic identification veneer, and then realize professional switching fast, guarantee professional normal operation.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method of fault detect, comprising:
The traffic identification veneer periodically sends notification packet according to the announcement cycle to master control veneer;
Whether the master control veneer basis receives notification packet in setting-up time length determines whether the traffic identification veneer is normal.
Wherein, described according to the announcement cycle before master control veneer periodically sends notification packet, this method further comprises: send the service request message to master control veneer behind the traffic identification single board starting; Master control veneer receives described service request message, determines the announcement cycle, returns the response message that comprises the announcement cycle to the traffic identification veneer.
In the such scheme, this method also comprises: when the traffic identification veneer is found faults itself by self check, send the Trouble Report message to master control veneer; Master control veneer is determined the traffic identification single board default according to the Trouble Report message of receiving.
In the such scheme, after described definite traffic identification single board default, this method further comprises: business is directly switched to service board; Directly business is handled by service board.
In the such scheme, this method also comprises: after master control veneer is determined the traffic identification single board default, send and recover message, according to the response message of receiving business is switched back the traffic identification veneer again;
The traffic identification veneer sends response message to master control veneer after recovering normally to receive and recovering message, reports self physical state.
The present invention also provides a kind of system of fault detect, comprising:
The traffic identification veneer is used for periodically sending notification packet according to the announcement cycle to master control veneer;
Master control veneer is used for determining according to whether receiving notification packet in setting-up time length whether the traffic identification veneer is normal.
In the such scheme, described traffic identification veneer: also be used for starting the back and send the service request message, receive the response message that master control veneer returns to master control veneer; Described master control veneer: also be used to receive the service request message that the traffic identification veneer sends, determine the announcement cycle, return the response message that comprises the announcement cycle to the traffic identification veneer.
In the such scheme, described traffic identification veneer: when being further used for, send the Trouble Report message to master control veneer by self check discovery faults itself; Described master control veneer: be further used for determining the traffic identification single board default according to the Trouble Report message of receiving.
In the such scheme, after described master control veneer is determined the traffic identification single board default, also be used for business is directly switched to service board.
In the such scheme, after described master control veneer is determined the traffic identification single board default, be further used for sending and recover message, business is switched back the traffic identification veneer again according to the response message of receiving; Described traffic identification veneer sends response message to master control veneer after being further used for recovering normally to receive the recovery message, reports self physical state.
The method and system of fault detect provided by the present invention, regularly send notification packet by the traffic identification veneer to master control veneer, make master control veneer in time judge the physical state of traffic identification veneer, and when the traffic identification veneer breaks down, further business is switched fast to service board, guarantee professional normal operation.
Among the present invention program, the traffic identification veneer can also the active detecting faults itself, has improved fault detect speed, thereby business is switched fast, guarantees professional normal operation.
In addition, the present invention has also set up recovery mechanism, master control veneer is in time surveyed the fault recovery situation of traffic identification veneer by the fault recovery message, when the traffic identification veneer recover normal and stable after, business is switched back to the traffic identification veneer again carries out traffic identification.
Description of drawings
Fig. 1 is the pie graph of the network equipment;
Fig. 2 is the schematic diagram of fault detection system among the present invention;
Fig. 3 is the flow chart of fault detection method among the present invention.
Embodiment
Basic thought of the present invention is, make the traffic identification veneer regular send notification packet to master control veneer, make master control veneer in time judge the physical state of traffic identification veneer, when the traffic identification single board default, business is switched fast, guarantee professional normal operation; Behind the switching services, master control veneer is by regularly sending the fault recovery situation that the fault recovery message is surveyed the traffic identification veneer, and after the recovery of traffic identification veneer was normal, master control veneer switched back to business the traffic identification veneer again and carries out traffic identification.
The system of fault detect of the present invention as shown in Figure 2, this system sets up notification packet between traffic identification veneer and master control veneer, make master control veneer obtain the physical state of traffic identification veneer fast, realizes the quick fault testing of traffic identification veneer.
Based on said system, the method for fault detect of the present invention may further comprise the steps as shown in Figure 3:
Step 201: the traffic identification veneer normally starts in the network equipment;
Step 202: the traffic identification veneer normally starts the back and sends the service request message to master control veneer;
In this step, the traffic identification veneer normally starts the back and initiatively sends the service request message to master control veneer, this service request message comprises: the single board state field is used for showing the physical state of traffic identification veneer comprising the state of hardware module and the state of veneer function; The maximum processing capability field is used for showing the maximum traffic disposal ability information of traffic identification veneer.After master control veneer is received this service request message,, determine the physical state of traffic identification veneer, and determine that according to the maximum processing capability field which business is directed to the traffic identification veneer carries out traffic identification according to the information in this service request message.
Step 203: master control veneer is determined the announcement cycle, and sends response message to the traffic identification veneer;
In this step, this response message comprises the response message of master control veneer and the temporal information of announcement, and wherein, the temporal information of announcement is used for determining that master control veneer and traffic identification veneer regularly send the announcement cycle of notification packet.
In specific implementation process, master control veneer can be provided with the length in announcement cycle according to the Business Nature of reality, for example for real time business, as net cast then the cycle be provided with shorter, other business then the announcement cycle be provided with longer.
Step 204: both sides set up regular notifying mechanism, and master control veneer is directed to the traffic identification veneer with business;
In this step, after the traffic identification veneer is received the response message of master control veneer, according to the announcement cycle, set up regular notifying mechanism with master control veneer, master control veneer is directed to the traffic identification veneer with business and carries out traffic identification.
Step 205: master control veneer receives the notification packet that the traffic identification veneer regularly sends to master control veneer;
In this step, according to the announcement cycle, the traffic identification veneer regularly sends notification packet to master control veneer; Master control veneer can in time be judged the physical state of traffic identification veneer by the notification packet of receiving, comprises relevant informations such as report of traffic identification veneer physical state and back-pressure state information in the notification packet.The back-pressure state information has reflected the treatable maximum traffic flow of traffic identification veneer.
Whether in addition, what master control veneer also can be regular sends notification packet to the traffic identification veneer, normal with its physical state of informing business identification veneer, makes the traffic identification veneer also can in time know the physical state of master control veneer.
Step 206: master control veneer judges whether to receive the Trouble Report message of traffic identification veneer transmission, if receive, then can produce alarm and further forward step 208 to; If do not receive, then forward step 207 to:
In this step, regularly sending in the process of notification packet, the traffic identification veneer can be found faults itself fast by self check.For example, the traffic identification veneer by spontaneous, receive the form of service message certainly, judge the physical state of self, the result who has produced unexpected result, the service message that promptly ought receive and setting when the service message that receives is inconsistent, then show the traffic identification single board default, thereby initiatively send the Trouble Report message to master control veneer.The key message that this Trouble Report message comprises is the failure cause information of traffic identification veneer, and it reflects following two kinds of failure conditions:
◆ find to have the part unit failure during self check of traffic identification veneer, but professional not interruption, the traffic identification veneer can send the Trouble Report message;
◆ find service disconnection during the self check of traffic identification veneer, but the traffic identification veneer still can send the Trouble Report message.
The traffic identification veneer can be found faults itself fast by self check, the purpose that initiatively find fault to reach, improves detection speed.When the traffic identification veneer breaks down, but still can send the Trouble Report message time, the traffic identification veneer can be found fault fast, initiatively send the Trouble Report message by self check this moment.
Step 207: master control veneer judges whether in setting-up time length, do not receive notification packet as continuous three announcement cycles, if do not receive, then forwards step 208 to; If receive, then rotate back into step 205;
In this step, the traffic identification veneer breaks down, and in the time of can not normally sending notification packet, does not receive the notification packet that the traffic identification veneer sends when continuous three announcement cycles of master control veneer, think that then the traffic identification veneer breaks down, can produce alarm and forward step 208 further to; When the traffic identification veneer did not send the Trouble Report message and can regularly send notification packet, then thinking did not have fault, rotates back into step 205.
Step 208: the traffic identification single board default, business is switched fast;
In this step, behind the traffic identification single board default, can not carry out normal traffic identification, can normally carry out for making business, master control veneer is switched business to service board immediately fast, directly business is handled by service board.
Step 209: after switching services, master control veneer can regularly send the recovery message to the traffic identification veneer, to survey the fault recovery situation of traffic identification veneer.After the traffic identification veneer recovers normally, receives the recovery message, can send response message to master control veneer, report its existing physical state, and ask that business is switched back its enterprising industry and be engaged in discerning.
Wherein, the content of this response message comprises failure cause, fault recovery stabilization time and professional handoff request.
Step 210: business is switched back the traffic identification veneer again, the quick fault self-checking of a beginning new round;
In this step, master control veneer is according to the response message of receiving, judge traffic identification single board default recovery situation, when definite traffic identification veneer recovers normal and stable, business is switched back the traffic identification veneer again carry out traffic identification, the traffic identification veneer begins to carry out the quick fault self-checking of a new round.
Based on above description, in the visible system shown in Figure 2, the traffic identification veneer is used for periodically sending notification packet according to the announcement cycle to master control veneer; Master control veneer is used for determining according to whether receiving notification packet in setting-up time length whether the traffic identification veneer is normal.
The traffic identification veneer also is used for starting the back and sends the service request message to master control veneer, receives the response message that master control veneer returns; Master control veneer also is used to receive the service request message that the traffic identification veneer sends, and determines the announcement cycle, returns the response message that comprises the announcement cycle to the traffic identification veneer.
When the traffic identification veneer is further used for by self check discovery faults itself, send the Trouble Report message to master control veneer; Master control veneer is further used for determining the traffic identification single board default according to the Trouble Report message of receiving.
After master control veneer is determined the traffic identification single board default, also be used for business is directly switched to service board; Directly business is handled by service board.
Master control veneer is further used for periodically sending notification packet according to the announcement cycle to the traffic identification veneer.
After master control veneer is determined the traffic identification single board default, be further used for sending and recover message, business is switched back the traffic identification veneer again according to the response message of receiving; The traffic identification veneer sends response message to master control veneer after being further used for recovering normally to receive the recovery message, reports self physical state.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for a fault detect is characterized in that, this method comprises:
The traffic identification veneer periodically sends notification packet according to the announcement cycle to master control veneer;
Whether the master control veneer basis receives notification packet in setting-up time length determines whether the traffic identification veneer is normal.
2. method according to claim 1 is characterized in that, described according to the announcement cycle before master control veneer periodically sends notification packet, this method further comprises:
Send the service request message to master control veneer behind the traffic identification single board starting;
Master control veneer receives described service request message, determines the announcement cycle, returns the response message that comprises the announcement cycle to the traffic identification veneer.
3. method according to claim 1 is characterized in that, this method also comprises:
When the traffic identification veneer is found faults itself by self check, send the Trouble Report message to master control veneer;
Master control veneer is determined the traffic identification single board default according to the Trouble Report message of receiving.
4. according to each described method of claim 1 to 3, it is characterized in that after described definite traffic identification single board default, this method further comprises: business is directly switched to service board; Directly business is handled by service board.
5. according to each described method of claim 1 to 3, it is characterized in that,
After master control veneer is determined the traffic identification single board default, send and recover message, business is switched back the traffic identification veneer again according to the response message of receiving;
The traffic identification veneer sends response message to master control veneer after recovering normally to receive and recovering message, reports self physical state.
6. the system of a fault detect is characterized in that, comprising:
The traffic identification veneer is used for periodically sending notification packet according to the announcement cycle to master control veneer;
Master control veneer is used for determining according to whether receiving notification packet in setting-up time length whether the traffic identification veneer is normal.
7. system according to claim 6 is characterized in that,
Described traffic identification veneer: also be used for starting the back and send the service request message, receive the response message that master control veneer returns to master control veneer;
Described master control veneer: also be used to receive the service request message that the traffic identification veneer sends, determine the announcement cycle, return the response message that comprises the announcement cycle to the traffic identification veneer.
8. system according to claim 6 is characterized in that,
Described traffic identification veneer: when being further used for, send the Trouble Report message to master control veneer by self check discovery faults itself;
Described master control veneer: be further used for determining the traffic identification single board default according to the Trouble Report message of receiving.
9. according to each described system of claim 6 to 8, it is characterized in that, after described master control veneer is determined the traffic identification single board default, also be used for business is directly switched to service board.
10. according to each described system of claim 6 to 8, it is characterized in that,
After described master control veneer is determined the traffic identification single board default, be further used for sending and recover message, business is switched back the traffic identification veneer again according to the response message of receiving;
Described traffic identification veneer sends response message to master control veneer after being further used for recovering normally to receive the recovery message, reports self physical state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100902334A CN101989933A (en) | 2009-08-03 | 2009-08-03 | Method and system for failure detection |
| PCT/CN2010/072425 WO2011015068A1 (en) | 2009-08-03 | 2010-05-04 | Failure detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100902334A CN101989933A (en) | 2009-08-03 | 2009-08-03 | Method and system for failure detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101989933A true CN101989933A (en) | 2011-03-23 |
Family
ID=43543897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100902334A Pending CN101989933A (en) | 2009-08-03 | 2009-08-03 | Method and system for failure detection |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101989933A (en) |
| WO (1) | WO2011015068A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138996A (en) * | 2011-11-25 | 2013-06-05 | 中兴通讯股份有限公司 | State detecting method of distributed system and distributed system |
| CN104079454A (en) * | 2014-07-11 | 2014-10-01 | 杭州华三通信技术有限公司 | Equipment exception detecting method and equipment |
| CN105337757A (en) * | 2014-08-15 | 2016-02-17 | 中兴通讯股份有限公司 | Line card management method and system |
| CN109120558A (en) * | 2017-06-26 | 2019-01-01 | 中兴通讯股份有限公司 | A kind of automatic method for removing of veneer port failure and system |
| CN109151815A (en) * | 2017-06-15 | 2019-01-04 | 杭州海康威视数字技术股份有限公司 | Equipment cut-in method, apparatus and system |
| CN109474672A (en) * | 2018-10-25 | 2019-03-15 | 平安科技（深圳）有限公司 | The determination method and system of business execution state |
| CN110602339A (en) * | 2019-08-29 | 2019-12-20 | 深圳震有科技股份有限公司 | Fault detection method, system and storage medium based on voice gateway |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682188B (en) * | 2017-09-29 | 2021-05-28 | 新华三技术有限公司 | Fault sensing method and device |
| CN116402356A (en) * | 2021-12-24 | 2023-07-07 | 中兴通讯股份有限公司 | Single board management method, electronic equipment and storage medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100499387C (en) * | 2003-11-28 | 2009-06-10 | 中兴通讯股份有限公司 | A method of singleboard N+1 backup in communication system |
| US7243318B1 (en) * | 2004-08-30 | 2007-07-10 | Sprint Communications Company L.P. | Integrated test processor (ITP) for a system on chip (SOC) that includes a network on chip (NOC) |
| CN101150458A (en) * | 2007-11-10 | 2008-03-26 | 华为技术有限公司 | Method and device for single board detection |
| CN101257697A (en) * | 2008-04-18 | 2008-09-03 | 中兴通讯股份有限公司 | Single board fault reporting method and single board with fault reporting function |
-
2009
- 2009-08-03 CN CN2009100902334A patent/CN101989933A/en active Pending
-
2010
- 2010-05-04 WO PCT/CN2010/072425 patent/WO2011015068A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138996A (en) * | 2011-11-25 | 2013-06-05 | 中兴通讯股份有限公司 | State detecting method of distributed system and distributed system |
| CN104079454A (en) * | 2014-07-11 | 2014-10-01 | 杭州华三通信技术有限公司 | Equipment exception detecting method and equipment |
| CN104079454B (en) * | 2014-07-11 | 2017-12-29 | 新华三技术有限公司 | A kind of unit exception detection method and equipment |
| CN105337757A (en) * | 2014-08-15 | 2016-02-17 | 中兴通讯股份有限公司 | Line card management method and system |
| CN109151815A (en) * | 2017-06-15 | 2019-01-04 | 杭州海康威视数字技术股份有限公司 | Equipment cut-in method, apparatus and system |
| CN109120558A (en) * | 2017-06-26 | 2019-01-01 | 中兴通讯股份有限公司 | A kind of automatic method for removing of veneer port failure and system |
| CN109120558B (en) * | 2017-06-26 | 2022-11-01 | 中兴通讯股份有限公司 | Method and system for automatically eliminating single board port fault |
| CN109474672A (en) * | 2018-10-25 | 2019-03-15 | 平安科技（深圳）有限公司 | The determination method and system of business execution state |
| CN109474672B (en) * | 2018-10-25 | 2022-03-25 | 平安科技（深圳）有限公司 | Method and system for determining service execution state |
| CN110602339A (en) * | 2019-08-29 | 2019-12-20 | 深圳震有科技股份有限公司 | Fault detection method, system and storage medium based on voice gateway |
| CN110602339B (en) * | 2019-08-29 | 2021-04-20 | 深圳震有科技股份有限公司 | Fault detection method, system and storage medium based on voice gateway |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011015068A1 (en) | 2011-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101989933A (en) | Method and system for failure detection | |
| CN101800675B (en) | Failure monitoring method, monitoring equipment and communication system | |
| CN102932466B (en) | The distributed source method for supervising of content-based distributing network and system | |
| US8117337B2 (en) | Method and device for implementing link pass through in point-to-multipoint network | |
| CN110581852A (en) | Efficient mimicry defense system and method | |
| EP3142011A1 (en) | Anomaly recovery method for virtual machine in distributed environment | |
| CN101188527B (en) | A heartbeat detection method and device | |
| CN103019866A (en) | Distributed method and system based on message queue | |
| EP2698948A1 (en) | Method and device for determining failure elimination based on oam protocol | |
| CN105429814B (en) | Method and equipment for protecting BFD (bidirectional forwarding detection) by using multiple board cards | |
| CN103812675A (en) | Method and system for realizing allopatric disaster recovery switching of service delivery platform | |
| CN103491102A (en) | Method, system and device for monitoring stability of internet audio and video | |
| CN103139818A (en) | Method, system, area of effect (AOE), always on line (AOG) and terminal of maintaining long connection in acquisition of signal (AOS) | |
| CN104518914B (en) | Link switch-over method and equipment | |
| WO2016095344A1 (en) | Link switching method and device, and line card | |
| CN103945432A (en) | Operating-mode switching method for trunking system base station | |
| CN100444558C (en) | Method for backup of main station point and backup station point | |
| WO2016187979A1 (en) | Transmitting method and apparatus for bidirectional forwarding detection (bfd) message | |
| CN103810076A (en) | Monitoring method and device for data reproduction | |
| WO2016065751A1 (en) | Method for recovering link communication, service line card and system | |
| CN105490837A (en) | Network monitoring processing method and device | |
| CN104639356A (en) | Failure recovery method and device | |
| CN101106548B (en) | Device and method for realizing storage and disaster tolerance in multimedia message service system | |
| WO2014040470A1 (en) | Alarm message processing method and device | |
| CN104348676A (en) | Link detection method and device based on operation administration and maintenance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110323 |