CN101159990B - Transmission equipment service panel bus selecting method - Google Patents

Transmission equipment service panel bus selecting method Download PDF

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Publication number
CN101159990B
CN101159990B CN2007101538721A CN200710153872A CN101159990B CN 101159990 B CN101159990 B CN 101159990B CN 2007101538721 A CN2007101538721 A CN 2007101538721A CN 200710153872 A CN200710153872 A CN 200710153872A CN 101159990 B CN101159990 B CN 101159990B
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bus
control board
ready
business
board
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CN101159990A (en
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兰勇钢
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ZTE Corp
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ZTE Corp
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Abstract

A selection method of transmission equipment business board bus is used in the system with a main and a secondary business control board and a dual bus connection between the main and the secondary business control board and the business board. The method includes the following steps: (a) before each bus selection judgment, the business board judges message received by a backboard about whether relevant units of the main and the secondary control board business processing are ready and preserves the prior status after judgment; (b) in the bus selection judgment course, use the preserved prior status as the basis about whether the main and the secondary control board business processing relevant units received by the backboard bus are ready and the bus selection judgment. The invention can effectively improve the reliability of transmission equipment business board bus selection.

Description

A kind of transmission equipment service panel bus selecting method
Technical field
The present invention relates to equipment business board bus selection technology in the optical transmission communications field, be specifically related to a kind of transmission equipment service panel bus selecting method.
Background technology
The optical transmission business board is a kind of important veneer of optical transmission device, and main effect is that transmitting business signal is carried out data transaction, alarm, overhead processing and pointer adjustment.Professional control board mainly carries out the protection of interconnection and related service to business.Mainly carry out business and the transmission of related control information mutually between business board and the professional control board by core bus.The transmission equipment prior art has adopted dual-bus structure; be that active and standby professional control board is realized 1+1 protection; improved the reliability of equipment; the dual-bus structure cardinal principle is concurrent excellent receipts; be the simultaneously past backboard transport service control signal of professional control board, and business board is selected a kind of according to the quality of bus signals.Specifically, professional control board software transmits control signal by core bus, and business board carries out bus selection according to this control signal.
In dual-bus structure, please refer to Fig. 1, business board selects service bus that a series of judgement foundation is arranged, these judgements are according to having different priority, and as follows successively from high to low: situation, the situation on the throne of professional control board, professional control board heartbeat, the ready situation of professional control board and the alarm of business board backboard side etc. are selected in the pressure of service bus.It is artificial control that the pressure of service bus is selected, good and bad irrelevant with the state and the core bus signal of professional control board; The situation on the throne of professional control board is meant if having only a professional control board just only to select this business control board; The heartbeat of professional control board is meant professional control board by core bus timed sending signal, and business board judges according to this signal whether professional control board is in running status, and the professional control board of the undesired expression of heartbeat is undesired; The ready situation of professional control board refers to whether operate as normal of professional control board and Business Processing correlation unit, professional control board sends own service by core bus and whether handles ready signal, and business board judges according to this signal whether the professional relevant treatment unit of professional control plate is ready; The alarm of business board backboard side refers to whether the professional coherent signal that business board is received from the backboard side has alarm, has the professional coherent signal of alarm expression to have defective, and is unreliable.
In the prior art because active and standby professional control board relatively independent, active and standby plate power on or reseting procedure in, it is unstable and inconsistent control signal to occur.If this moment, business board carried out bus selection according to this control signal, mistake may occur, thereby cause and professional hit takes place even can't recover.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the defective that prior art exists, and a kind of transmission equipment service panel bus selecting method is provided, and can effectively improve the reliability of equipment business board bus selection.
In order to address the above problem, the invention provides a kind of transmission equipment service panel bus selecting method, be applied to have the system that adopts dual-bus structure to connect between active and standby professional control board and active and standby professional control board and the business board, this method may further comprise the steps:
(a) carrying out before bus selection judges, whether judge by ready state information to the active and standby control board Business Processing correlation unit received from core bus for business board, and preserve the current state of judging at every turn;
(b) in the bus selection deterministic process, with the described current state of preserving as the active and standby control board Business Processing correlation unit of receiving from core bus ready state whether, and as the foundation of this bus selection judgement.
Further, said method also can have following characteristics: step (a) is further divided into following steps:
Described active and standby professional control board sends Business Processing correlation unit ready signal by core bus to described business board;
After described business board is received described ready signal, judge whether fixed code is normal earlier:
As undesired, judge that then corresponding service control board Business Processing correlation unit is not ready and preserve this current state of judging, finish;
As normally, judge according to described ready flag whether corresponding service control board Business Processing correlation unit is ready again, and preserve this current state of judging.
Further, said method also can have following characteristics:
After each bus selection deterministic process, need to preserve whether ready state of the described active and standby control board Business Processing correlation unit of receiving from core bus judged;
In bus selection deterministic process next time, have only this and the last control board Business Processing correlation unit of judging of receiving from core bus to be ready state, think that just described control board Business Processing correlation unit is in ready state at this moment.
Further, said method also can have following characteristics:
Described active and standby control board Business Processing correlation unit whether ready state is meant whether ready state of the business of these Business Processing correlation units and expense, and the ready business of these Business Processing correlation units and the expense of being meant of described active and standby control board Business Processing correlation unit is in ready state.
Further, said method also can have following characteristics:
The bus selection deterministic process of step (b) comprises overhead bus chooser process, expense earlier ready to the pressure of expense bus selection, the control board heartbeat on the throne, professional of professional control board, professional control board expense successively, that receive from core bus is ready to situation, professional control board business alarm situation professional ready, business board backboard side ready, that receive from core bus and judges, as it is normal and another professional control board is undesired to judge a professional control board, then select normal professional control board, finish.
Further, said method also can have following characteristics:
The bus selection deterministic process of step (b) also comprises service bus chooser process, judges whether service bus is forced earlier, in this way, then selects compulsory cross board, otherwise selects to be consistent with overhead bus.
Further, said method also can have following characteristics:
Described ready signal comprises fixed code and ready flag two parts.
Further, said method also can have following characteristics:
Described professional control board is a cross board, and described business board is an Optical Line Board OL.
Further, said method also can have following characteristics:
Front two in the described Business Processing correlation unit ready signal is the fixed code position, and all the other positions are Business Processing ready flag position.
The inventive method is in equipment business board bus selection, carrying out at every turn whether ready state was judged to the business received from HW line (a kind of High speed rear panel bus) and expense before bus selection was judged, rather than whether ready the business of receiving from the HW line in the needs judgement and expense just judged when.Whether ready state is consistent with professional control board virtual condition with expense can to guarantee business that business board receives from the HW line like this.Further, set the fixed code part in the Business Processing correlation unit ready signal that professional control board is sended over by core bus, increased judgement to fixed code, improved the reliability of the bus selection of business board dual-bus structure, prevent to cause owing to professional control board powers on or resets that bus selection is undesired to cause professional hit or interruption, go for adopting the bus selection of the optical transmission device business board of dual bus.
Description of drawings
Fig. 1, be the flow chart that existing bus selection is judged.
Fig. 2, embodiment of the invention method treatment step 1) Business Processing correlation unit ready signal decision flow chart.
Fig. 3 (a) and Fig. 3 (b) are respectively the overhead bus that is applied to SDH transmission equipment and the selection flow chart of service bus.
Embodiment
Below in conjunction with drawings and Examples, the inventive method is described in further detail.
Embodiment: with the SDH transmission equipment is example, but the present invention is not limited to this, and Optical Line Board OL is a kind of main business board.Cross board is professional control board.Mainly carry out business and expense transmission between Optical Line Board OL and the cross board by back board service bus and overhead bus.Professional and expense adopts dual-bus structure, and promptly active and standby two cross boards are realized 1+1 protection.The judgement of cross board traffic overhead bus is according to mainly comprising: bus force selection, cross board situation on the throne, cross board heartbeat, cross board expense ready, receive that from the HW line expense is ready to situation, the cross board business is ready, the alarm situation of professional ready, the business board backboard side of receiving from the HW line.Carrying out at every turn whether ready state was judged to the business received from the HW line and expense before bus selection was judged, rather than whether ready the business of receiving from the HW line in the needs judgement and expense just judged when.Whether ready state is consistent with the cross board virtual condition with expense can to guarantee business that business board receives from the HW line like this; Judging from business and ready this step of expense that the HW line is received, be to be undertaken by the HW0 byte that the judgement cross board sends over, because cross board powers on or when resetting, the HW byte that sends is undesired, business board is judged according to HW0 byte position this moment, may cause and get the wrong sow by the ear, in the HW0 byte that cross board sends, increase the fixed code position, business board is judged according to this fixed code position, whether whether the byte that cross board sends over is normal, and then ready according to other position judgement business of HW0 byte and expense.
The treatment step of software section is as follows:
1) before select judging, service panel bus judges whether two cross board traffic overhead receiving from the HW line of bus are ready, preserve in current state to the static array, offer needs judge from HW receive traffic overhead whether ready as the bus selection judgement according to the time use, further be subdivided into:
A) whether high two fixed code of judging the HW0 byte that the HW line is brought are 01, if not 01, represent that then the traffic overhead of bringing from HW is not ready, need not judge other mode bits of HW line;
B) if high two fixed code of the HW0 byte of bringing from the HW line are 01, other mode bits of then further judging the HW0 byte determine whether the traffic overhead of bringing from the HW line is ready.The HW0 byte is defined as follows:
A high position → low level
b1 ?b2 ?b3 ?b4 ?B5 ?b6 ?b7 ?b8
HW0: the information on the throne of cross board veneer,
B1-b2:01 (fixed code);
B3:0 (the professional intersection of cross board is ready) is with hardware READY;
1 (the professional intersection of cross board is unavailable);
B4:0 (the cross board expense is intersected ready) is with hardware ROH;
1 (the cross board expense is intersected unavailable);
B5:0 (operate as normal);
1 (non-normal working: power-up initializing, reset initialization, single board default does not power on);
The b6-8:1-8 level, cross board time-delay grade
C) preserve this bus selection business and expense ready state whether in judging, in bus selection is judged (10ms once), carry out above-mentioned two steps again next time, promptly have only all normally to be ready state in twice judgement, determine that just business and expense are normal.
2) overhead bus shown in Fig. 3 (a) is selected in the deterministic process, respectively to the expense bus selection force, cross board is on the throne, cross board heartbeat, cross board expense are ready, receive that from the HW line expense is ready to situation, cross board business alarm situation professional ready, business board backboard side ready, that receive from the HW line and judges successively, if previous condition satisfies then does not carry out next step judgement, promptly be that to have judged a cross board normal, when another cross board is undesired, select normal cross board; Fig. 3 (b) shows the selection deterministic process to service bus, judges whether service bus is forced earlier, in this way, then selects compulsory cross board, otherwise selects to be consistent with overhead bus.
3) carry out business and overhead bus selection according to above-mentioned judged result.Selection mode can adopt existing method.
By when judgement is ready from the traffic overhead of HW line transmission, increasing judgement to fixed code, and increase by twice verification, can effectively prevent to send the unstable business board that causes of HW byte and judge that the traffic overhead bus state is wrong owing to cross board powers on or resets, thereby select bus to make mistakes, cause that traffic overhead is undesired.Improved the reliability that service panel bus is selected.

Claims (7)

1. a transmission equipment service panel bus selecting method is applied to have the system that adopts dual-bus structure to connect between active and standby professional control board and active and standby professional control board and the business board, and this method may further comprise the steps:
(a) carrying out before bus selection judges, whether judge by ready state information to the active and standby professional control board Business Processing correlation unit received from core bus for business board, and preserve the current state of judging at every turn; Described active and standby professional control board Business Processing correlation unit whether ready state is meant whether ready state of the business of these Business Processing correlation units and expense;
(b) in the bus selection deterministic process, with the described current state of preserving as the active and standby professional control board Business Processing correlation unit of receiving from core bus ready state whether, and as the foundation of this bus selection judgement.
2. transmission equipment service panel bus selecting method according to claim 1 is characterized in that: step (a) is further divided into following steps:
Described active and standby professional control board sends Business Processing correlation unit ready signal by core bus to described business board, and described ready signal comprises fixed code and ready flag two parts;
After described business board is received described ready signal, judge whether described fixed code is normal earlier:
As undesired, judge that then corresponding service control board Business Processing correlation unit is not ready and preserve this current state of judging, finish;
As normally, judge according to described ready flag whether corresponding service control board Business Processing correlation unit is ready again, and preserve this current state of judging.
3. transmission equipment service panel bus selecting method according to claim 1 and 2 is characterized in that:
After each bus selection deterministic process, need to preserve whether ready state of the described active and standby professional control board Business Processing correlation unit of receiving from core bus judged;
In bus selection deterministic process next time, have only this and the last professional control board Business Processing correlation unit of judging of receiving from core bus to be ready state, think that just described professional control board Business Processing correlation unit is in ready state at this moment.
4. transmission equipment service panel bus selecting method according to claim 1 is characterized in that:
The bus selection deterministic process of step (b) comprises overhead bus chooser process, expense earlier ready to the pressure of expense bus selection, the control board heartbeat on the throne, professional of professional control board, professional control board expense successively, that receive from core bus is ready to situation, professional control board business alarm situation professional ready, business board backboard side ready, that receive from core bus and judges, as it is normal and another professional control board is undesired to judge a professional control board, then select normal professional control board, finish.
5. transmission equipment service panel bus selecting method according to claim 4 is characterized in that:
The bus selection deterministic process of step (b) also comprises service bus chooser process, judges whether service bus is forced earlier, in this way, then selects compulsory professional control board, otherwise selects to be consistent with overhead bus.
6. according to claim 1,2 or 5 described transmission equipment service panel bus selecting methods, it is characterized in that:
Described professional control board is a cross board, and described business board is an Optical Line Board OL.
7. transmission equipment service panel bus selecting method according to claim 2 is characterized in that:
Front two in the described Business Processing correlation unit ready signal is the fixed code position, and all the other positions are Business Processing ready flag position.
CN2007101538721A 2007-09-13 2007-09-13 Transmission equipment service panel bus selecting method Active CN101159990B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729580A (en) * 2008-10-24 2010-06-09 成都市华为赛门铁克科技有限公司 Storage method and system, terminal service panel, control panel and storage channel panel
CN101969583B (en) * 2009-07-28 2013-06-05 中兴通讯股份有限公司 Total service cross configuration method and device for optical transmission system
CN108243023B (en) * 2016-12-23 2021-01-19 比亚迪股份有限公司 Computer platform based on rail transit
CN108632151B (en) * 2017-03-24 2022-03-11 中兴通讯股份有限公司 Cluster router board card access method and device and cluster router

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1510845A (en) * 2002-12-26 2004-07-07 华为技术有限公司 Hot backup method for switching primary and secondary protection
EP0819344B1 (en) * 1995-04-03 2004-12-29 Telefonaktiebolaget LM Ericsson (publ) Optical network and arrangement and method in such network
CN1996993A (en) * 2006-01-05 2007-07-11 华为技术有限公司 A method and system for improving the utilization ratio of back board service bus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819344B1 (en) * 1995-04-03 2004-12-29 Telefonaktiebolaget LM Ericsson (publ) Optical network and arrangement and method in such network
CN1510845A (en) * 2002-12-26 2004-07-07 华为技术有限公司 Hot backup method for switching primary and secondary protection
CN1996993A (en) * 2006-01-05 2007-07-11 华为技术有限公司 A method and system for improving the utilization ratio of back board service bus

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