CN102711163A - Method for rapidly detecting alarm link failure in IP (internal protocol)-RAN (random access network) equipment - Google Patents
Method for rapidly detecting alarm link failure in IP (internal protocol)-RAN (random access network) equipment Download PDFInfo
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- CN102711163A CN102711163A CN2012102394367A CN201210239436A CN102711163A CN 102711163 A CN102711163 A CN 102711163A CN 2012102394367 A CN2012102394367 A CN 2012102394367A CN 201210239436 A CN201210239436 A CN 201210239436A CN 102711163 A CN102711163 A CN 102711163A
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Abstract
The invention relates to a method for rapidly detecting alarm link failure in IP (internal protocol)-RAN (random access network) equipment. The method comprises the steps of: making a quick alarming link detecting protocol including a request message (request) and a reply message (replay); periodically sending the request message (request) to a main control unit through the business interface unit of the IP-RAN equipment; and if the business interface unit receives the reply message (replay) and can correctly fetch field information from the reply message (replay), determining that the link for the message transmission is correct based on physics and logic; otherwise, determining the link as the chain in an abnormal state. By using the method provided by the invention, the defects that the alarming is out of work because the alarming can not be normally transmitted due to abnormal link are prevented during researching, developing, producing, managing and maintaining IP-RAN equipment; and a mechanism for quickly detecting the alarming link fault between boards is provided to achieve efficient, reliable and flexible alarming link detecting means, which has important implications for ensuring the stability of the business.
Description
Technical field
The present invention relates to IP wireless access network (IP-RAN) system, is a kind of method of IP-RAN equipment fast detecting alarm link failure specifically.
Background technology
IP-RAN (IP wireless access network) system is applied to the mobile backhaul network of IPization; Characteristic with transmission equipment and data equipment, so the protection agreement of compatible with ITU-T (International Telecommunications Union's telecommunication standards tissue) and IETF (the Internet engineering duty group).Its network-level protection comprises LSP 1+1/1:1 trail protection, Wrapping/Steering looped network protection, dual-homing protection and MPLS FRR (the quick heavy-route of MPLS) protection; Alarm and switching action that protection is switched are transmitted in network and between network by warning information; Then possibly cause the service link protection unsuccessful if the alarm of any node transmits to lose efficacy, therefore alarm plays a part crucial for the normal operation of the system of assurance.
Along with place capacity constantly increases, system complexity constantly enlarges, and under the situation of large-scale production manufacturing and management maintenance resource-constrained, the management maintenance ease for use demand of alarm link becomes more outstanding.In practical application, if problem such as link is short-circuited between the equipment inner panel, open circuit, one way link, the fault location very difficulty that can become.
General alarm link detecting is just utilized physical method, adjudicates the connectedness that detects link through measured signal level, also perhaps utilizes the software arrangements mode to transmit the fixedly connectedness of warning information detection link.But there is certain limitation in these detection meanss, can't provide efficiently for the user in some cases, reliable, link detecting information flexibly.
When sending the reference clock of alarming problem is arranged, because physical connection is normal, but physical link can't communication.When the multilink alarm is communicated by letter with bus form, because the existence of many equipment if bus collision appears in these equipment rooms, with causing same problem, lacks reliability.
Need utilize instrument (universal instrument/oscilloscope) to measure, lack flexibility in using at the scene.
Need the management software support, when one way link goes wrong, the fault location link lacks high efficiency fast.
Summary of the invention
To the defective that exists in the prior art; The object of the present invention is to provide the method for a kind of IP-RAN equipment fast detecting alarm link failure, in the research and development of IP-RAN equipment, production and management maintenance process, can prevent because link causes the alarm can't normal delivery unusually; Thereby defectives such as alarm inefficacy appear; Through the mechanism of the alarm of fast detecting between plate link failure is provided, thereby realize alarming efficiently, reliably, flexibly the link detecting means, to guaranteeing professional stable having great significance.
For reaching above purpose, the technical scheme that the present invention takes is:
The method of a kind of IP-RAN equipment fast detecting alarm link failure is characterized in that: on the business interface unit of IP-RAN equipment and main control unit, realize, may further comprise the steps:
On the basis of technique scheme, request message request comprises: outside heading Outer herder and built-in message head Inner header, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, support 6 business interface unit to interleave according to corresponding time slot altogether;
2 bytes of the MFAS field that interleaves are transmitted corresponding service interface unit alarm link detecting protocol information respectively, are defined as " A1 ".
On the basis of technique scheme, reply message reply and comprise: outside heading Outer herder and built-in message head Inner header, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, detect the CHECK field;
2 bytes of the MFAS field that interleaves are transmitted corresponding main control unit alarm link detecting protocol information, are defined as " A1 ";
2 bytes of the CHECK field that interleaves, 16bit supports the transmission of 16 business interface unit informations respectively altogether.
On the basis of technique scheme; When the business interface unit when main control unit sends request message request; Interleave multiframe alignment signal MFAS field according to groove position information in the outside heading Outer herder field corresponding time slot of request message request; This protocol definition is " A1 ", the corresponding byte 1～2 of the MFAS field MFAS1 that groove position 1 interleaves, the corresponding byte 3～4 of the MFAS field MFAS2 that groove position 2 interleaves; The corresponding byte 5～6 of the MFAS field MFAS3 that groove position 3 interleaves; The corresponding byte 7～8 of the MFAS field MFAS4 that groove position 4 interleaves, the corresponding byte 9～10 of the MFAS field MFAS5 that groove position 5 interleaves, the corresponding byte 11～12 of the MFAS field MFAS6 that groove position 6 interleaves.
On the basis of technique scheme, each groove position communication information that main control unit extracts according to the MFASn section of extracting sends a reply message to the business interface unit, and inserts the CHECK field;
Insert ' 1 ' if groove position 1 is communicated with the bit15 of CHECK field, otherwise insert ' 0 ', successively respectively the communication information of communication information to bit14, the groove position 3 of insertion groove position 2 to bit13 ..., groove position 16 communication information to bit0.
On the basis of technique scheme; The business interface unit receives the answer message of main control unit; Extract the CHECK field of outside frame head according to replying message format, if corresponding bit be ' 1 ' this business interface unit of expression connection be communicated with alarm link bidirectional between main control unit; Otherwise represent that then this main control unit to business interface unit one way link is unusual.
The method of IP-RAN equipment fast detecting alarm link failure of the present invention; In the research and development of IP-RAN equipment, production and management maintenance process; Can prevent because link causes the alarm can't normal delivery unusually, thereby defective such as alarm inefficacys occur, alarm the mechanism of link failure through fast detecting between plate is provided; Thereby realize alarming efficiently, reliably, flexibly the link detecting means, to guaranteeing professional stable having great significance.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 alarms the mechanism of link detecting agreement RWLDP fast,
Fig. 2 alarms the request message form of link detecting agreement fast,
Fig. 3 alarms the answer message format of link detecting agreement fast,
Fig. 4 business interface unit and main control unit communication process sketch map.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Shown in Fig. 1～4, the method for IP-RAN equipment fast detecting of the present invention alarm link failure realizes on the business interface unit of IP-RAN equipment and main control unit, may further comprise the steps:
On the basis of technique scheme, as shown in Figure 2, request message request comprises: outside heading Outer herder and built-in message head Inner header, and the former is used to support this technical scheme, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, support 6 business interface unit to interleave according to corresponding time slot altogether;
2 bytes of the MFAS field that interleaves are transmitted corresponding service interface unit alarm link detecting protocol information respectively, are defined as " A1 ".
On the basis of technique scheme, as shown in Figure 3, reply message reply and comprise: outside heading Outer herder and built-in message head Inner header, the former is used to support this technical scheme, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, detect the CHECK field;
2 bytes of the MFAS field that interleaves are transmitted corresponding main control unit alarm link detecting protocol information, are defined as " A1 ";
2 bytes of the CHECK field that interleaves, 16bit (bit) supports the transmission of 16 business interface unit informations respectively altogether.Every bit business transferring interface unit detection signal, ' 1 ' expression is communicated with, and ' 0 ' expression is not communicated with.
On the basis of technique scheme; As shown in Figure 4; When the business interface unit when main control unit sends request message request, interleave multiframe alignment signal MFAS field according to groove position information in the outside heading Outer herder field corresponding time slot of request message request, this protocol definition is " A1 "; The corresponding byte 1～2 of the MFAS field MFAS1 that groove position 1 interleaves; The corresponding byte 3～4 of the MFAS field MFAS2 that groove position 2 interleaves, the corresponding byte 5～6 of the MFAS field MFAS3 that groove position 3 interleaves, the corresponding byte 7～8 of the MFAS field MFAS4 that groove position 4 interleaves; The corresponding byte 9～10 of the MFAS field MFAS5 that groove position 5 interleaves, the corresponding byte 11～12 of the MFAS field MFAS6 that groove position 6 interleaves.
MFAS field MFASn in the main control unit analysis request message, n=1～6, if the value of MFASn is effective, then business interface unit to the main control unit one way link of groove position n is communicated with, otherwise is not communicated with.
For example:
When effectively (A1) then business interface unit to main control unit alarm link one way link connection of groove position 1 of the MFAS1 field value that extracts.
On the basis of technique scheme, each groove position communication information that main control unit extracts according to the MFASn section of extracting sends a reply message to the business interface unit, and inserts the CHECK field;
Insert ' 1 ' if groove position 1 is communicated with the bit15 of CHECK field, otherwise insert ' 0 ', successively respectively the communication information of communication information to bit14, the groove position 3 of insertion groove position 2 to bit13 ..., groove position 16 communication information to bit0.
On the basis of technique scheme; The business interface unit receives the answer message of main control unit; Extract the CHECK field of outside frame head according to replying message format, if corresponding bit be ' 1 ' this business interface unit of expression connection be communicated with alarm link bidirectional between main control unit; Otherwise represent that then this main control unit to business interface unit one way link is unusual.
For example:
The CHECK field value that from reply message, extracts when the business interface unit for " 0x8000 ", the alarm link bidirectional UNICOM between business interface unit to the main control unit of groove position 1 then; When the CHECK field value that extracts is " 0xF800 ", all two-way UNICOM of the alarm link of business interface unit to the main control unit of groove position 1,2,3,4,5 then; When the CHECK field value that extracts is " 0x0000 ", then the equal one way link in business interface unit of main control unit to any groove position is unusual.
Utilization of the present invention is exclusively used in the quick alarm link detecting agreement of fast detecting alarm link failure, makes the user can detect the ALM link failure quickly and easily, comprises short circuit, opens circuit, unidirectional link failure, two-way link fault.The Fault Processing method has: clock reparation, hardware reparation, load matched reparation.
This testing mechanism is realized through the FPGA mode, on the IP-RAN of Fiberhome telecommunication serial equipment, is applied, and has successfully solved the problem of equipment fast detecting alarm link failure.
The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. the method for IP-RAN equipment fast detecting alarm link failure is characterized in that: on the business interface unit of IP-RAN equipment and main control unit, realize, may further comprise the steps:
Step 1, formulation be alarm link detecting agreement fast, and said quick alarm link detecting agreement is used for fast detecting alarm link failure, and it comprises: request message request and answer message reply;
Step 2, the business interface unit of IP-RAN equipment periodically sends request message request to the main control unit of IP-RAN equipment in the alarm link port, and the expectation main control unit is replied this request message;
Step 3; If the answer message reply of main control unit is received in the business interface unit of IP-RAN equipment; And can be from reply message reply correct extraction detected field information, then think this link of message transmission at physics with all be correct in logic, otherwise link will be identified as unusually.
2. the method for IP-RAN equipment fast detecting alarm link failure as claimed in claim 1, it is characterized in that: request message request comprises: outside heading Outer herder and built-in message head Inner header, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, support 6 business interface unit to interleave according to corresponding time slot altogether;
2 bytes of the MFAS field that interleaves are transmitted corresponding service interface unit alarm link detecting protocol information respectively, are defined as " A1 ".
3. the method for IP-RAN equipment fast detecting alarm link failure as claimed in claim 2 is characterized in that: reply message reply and comprise: outside heading Outer herder and built-in message head Inner header, wherein:
Outside heading Outer herder field, totally 12 bytes are used to interleave multiframe alignment signal MFAS field, detect the CHECK field;
2 bytes of the MFAS field that interleaves are transmitted corresponding main control unit alarm link detecting protocol information, are defined as " A1 ";
2 bytes of the CHECK field that interleaves, 16bit supports the transmission of 16 business interface unit informations respectively altogether.
4. the method for IP-RAN equipment fast detecting alarm link failure as claimed in claim 3; It is characterized in that: when the business interface unit when main control unit sends request message request; Interleave multiframe alignment signal MFAS field according to groove position information in the outside heading Outer herder field corresponding time slot of request message request; This protocol definition is " A1 ", the corresponding byte 1～2 of the MFAS field MFAS1 that groove position 1 interleaves, the corresponding byte 3～4 of the MFAS field MFAS2 that groove position 2 interleaves; The corresponding byte 5～6 of the MFAS field MFAS3 that groove position 3 interleaves; The corresponding byte 7～8 of the MFAS field MFAS4 that groove position 4 interleaves, the corresponding byte 9～10 of the MFAS field MFAS5 that groove position 5 interleaves, the corresponding byte 11～12 of the MFAS field MFAS6 that groove position 6 interleaves.
5. the method for IP-RAN equipment fast detecting alarm link failure as claimed in claim 3, it is characterized in that: each groove position communication information that main control unit extracts according to the MFASn section of extracting sends a reply message to the business interface unit, and inserts the CHECK field;
Insert ' 1 ' if groove position 1 is communicated with the bit15 of CHECK field, otherwise insert ' 0 ', successively respectively the communication information of communication information to bit14, the groove position 3 of insertion groove position 2 to bit13 ..., groove position 16 communication information to bit0.
6. the method for IP-RAN equipment fast detecting alarm link failure as claimed in claim 3; It is characterized in that: the business interface unit receives the answer message of main control unit; Extract the CHECK field of outside frame head according to replying message format, if corresponding bit be ' 1 ' this business interface unit of expression connection be communicated with alarm link bidirectional between main control unit; Otherwise represent that then this main control unit to business interface unit one way link is unusual.
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| CN104184619A (en) * | 2014-08-13 | 2014-12-03 | 烽火通信科技股份有限公司 | Method for quickly positioning fault of IP-RAN equipment |
| CN105991344A (en) * | 2015-04-17 | 2016-10-05 | 杭州迪普科技有限公司 | Data synchronization method and data synchronization device |
| CN111654435A (en) * | 2020-06-02 | 2020-09-11 | 中电科航空电子有限公司 | Link protection fault processing system and method based on LACP |
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