CN101170837B - A method for realizing cross-cable card protection on Gbit passive optical network device - Google Patents
A method for realizing cross-cable card protection on Gbit passive optical network device Download PDFInfo
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- CN101170837B CN101170837B CN2006101377208A CN200610137720A CN101170837B CN 101170837 B CN101170837 B CN 101170837B CN 2006101377208 A CN2006101377208 A CN 2006101377208A CN 200610137720 A CN200610137720 A CN 200610137720A CN 101170837 B CN101170837 B CN 101170837B
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Abstract
The invention discloses a method of realizing cross line card protection on gigabit PON equipment, which includes: each OLT interface on the GPON line card is bound with the interface connected with a main control power board at least; establish a protection unit and appoint operation OLT interface and protection OLT interface and add the bound main control power board interface to the same link trunk group; the main control power board performs protection calculation and opens or closes corresponding OLT interface and the main control board interface; the operation OLT interface and the protection OLT interface on the line card operate according to standard regulation; a protection module of the main control power board receives the information sent by a receiving line card, performs protection calculation, obtains the OLT interface in working state currently, and generates new K1 and K2 byte, which are put to PLOAM by the line card. The invention realizes cross line card protection and can obviously improve the equipment availability and reliability.
Description
Technical field
The invention provides a kind of method of upward the OLT interface being carried out the cross-line card protection, relate in particular in GPON (gigabit passive optical network) equipment OLT (optical line terminal) interface is carried out the protection of cross-line card at PON (EPON).
Background technology
PON, it is EPON, be the optical fiber access technology of a kind of point to multiple spot, it is made up of the OLT of office's side, the ONU of user side (optical network unit) and ODN (Optical Distribution Network), and can form topological structures (typical structure is a tree structure) such as tree type, star-like, bus-type neatly.
So-called passive, be meant and do not contain any active electronic device and electronic power supply among the ODN, all form, so the cost of its management maintenance is lower by optical branching device passive devices such as (Splitter).The PON technology can be divided into APON, EPON and GPON.Compare GPON with the above two and have higher efficiency of transmission, higher bandwidth, and support full-service, and therefore generally good by industry, be the PON technology of following main flow.
The GPON standard is that ITU releases after the APON standard, so the G..984 standard series has inevitably been continued to use a lot of thinkings of G..983 standard.Such as the GPON protection, also there is not formal perfect standard at present, the basic employing method identical with APON.The switching that this method is protected at the transmission convergence layer of GPON, advantage are that switching point is clear and definite single, are easy to realize; Shortcoming is to be difficult to realize the cross-line card protection.And equipment all requires to possess bigger capacity usually at present, therefore is made up of multi-thread card usually.Operator wishes that very this equipment can provide the protection of cross-line card, to avoid professional interruption.
Summary of the invention
In order to overcome problems of the prior art, the invention provides a kind of method of in GPON equipment, the OLT interface being carried out the cross-line card protection, to improve the reliability of equipment.
Conventional method be difficult to realize the cross-line card protection be because switching point at the GPON transmission convergence layer, and the transmission convergence layer of different ply-yarn drills is arranged in different chips, is difficult to association.In order to realize the protection of cross-line card, the present invention will protect and move to professional MAC layer on the switching point, realize the protection of cross-line card by the switching at operation layer.
Next generation network is based on the network of grouping, and therefore GPON equipment generally all will connect on the OLT interface by Ethernet at present, is to switch at the MAC of Ethernet layer therefore.
The present invention specifically is achieved in that
A kind of method that realizes the cross-line card protection on gigabit passive optical network equipment comprises the steps:
OLT interface on step 1, each GPON ply-yarn drill and at least one interface that links to each other with master control power board binding;
Step 2, set up a protection group, assigned work OLT interface and protection OLT interface, the master control power board interface that will link to each other with two optical line terminal interfaces is placed in the same aggregation of links group simultaneously;
Step 3, master control power board are protected calculating, and definite optical line terminal interface that should be in running order opens and closes corresponding optical line terminal interface then respectively, and the master control power board interface corresponding with them;
Work OLT interface on step 4, the ply-yarn drill and protection OLT interface can receive K1, the K2 byte of protection OLT interface and work OLT interface according to the regulation work of standard, produce alarm, and the information of aforementioned reception and generation is sent to the master control power board;
The protection module of step 5, master control power board receives K1, K2 byte and the warning information that ply-yarn drill is sent here; protect computing; obtain current in running order OLT interface; generate new K1, K2 byte; and newly-generated byte sent to ply-yarn drill, put among the PLOAM (physical layer management cell) by ply-yarn drill.
When not needing protection group, deletion protection group specifically is configuration restore to be arrived create protection group state in the past, opens two OLT interfaces and corresponding master control power board interface thereof simultaneously.
In the described step 1, when a plurality of master control power board interfaces and an OLT interface binding, need be together with a plurality of master control power board interface trunking (aggregation of links), a master control power board interface can only be bound with an OLT interface.
The interface corresponding in the trunking group and the interface of optical line terminal are opened or closed to master control power board protection module in the described step 4 with newly-generated K1, when the K2 byte sends to ply-yarn drill according to the result who protects computing.
Adopt the method for the invention, can in GPON equipment, realize the protection of cross-line card, can significantly improve the availability and the reliability of equipment.
Description of drawings
Fig. 1 is a TYPEB protection schematic diagram;
Fig. 2 is a TYPEC protection schematic diagram;
Fig. 3 is a cross-line card protection principle schematic.
Fig. 4 is the flow chart of the method for the invention.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing the method for the invention.
The method of the invention:
1, can support the TYPEB and the TYPEC protection of standard definition, as depicted in figs. 1 and 2, implementation procedure for TYPEB and TYPEC protection is basic identical, but the former does not need K1, K2 syllable dependent in the following step to handle, and mainly relies on other condition trigger protection; The latter need rely on K1, K2 byte.
2, generally only support protection in 1: 1, do not support 1+1 protection.
3, normal conditions are not supported the extra business.
Fig. 3 is a various device annexation schematic diagram, and therefrom as can be seen, GPON equipment is made up of OLT ply-yarn drill and master control power board usually, and OLT ply-yarn drill and master control power board can carry out communication between plate by internal mechanism, transmits the information that needs mutually.
In the time of need carrying out cross-line card PON interface protection:
At first; the interface PON1 of OLT ply-yarn drill 1 and the p1 of master control power board and p2 binding; the interface PON3 of OLT ply-yarn drill 2 and the p3 of master control power board and p4 binding, p1 and p2 are not arranged in a trunking1 group when creating the protection group, and p3 and p4 are arranged in a trunking2 group.
Then, create the protection group, PON1 is changed to work PON mouth, PON3 is changed to protection PON mouth, simultaneously:
1) with p1, p2, p3, p4 are placed in the same trunking group;
2) close PON3 and p3, p4.
After protection was formed and built up merit, PON1 and PON3 received K1, K2 according to the mechanism works of standard definition, and monitoring LOS, LOF etc. produce corresponding alarm, such as Signal Fail, Signal Degrade etc.Two ply-yarn drills all send to the master control power board with the information of corresponding PON mouth simultaneously.
Master control power board protection module receives K1, K2 byte, Signal Degrade, and Signal Fail, webmaster Forced Switch order etc., the running protection algorithm obtains current PON mouth that should be in running order.Such as, behind the running protection algorithm, think that PON3 should be in state of activation, then open PON3 mouth and corresponding p3, p4 interface thereof; Close PON1 mouth and corresponding p1 thereof, the p2 interface.
At last, the protection module on the master control power board sends K1 and K2 byte for two PON ply-yarn drills and closes, opens message, and ply-yarn drill opens or closes corresponding PON interface after receiving corresponding message, simultaneously K1 and K2 byte is put into PLOAM.
When not needing this protection group, can delete this protection group.
1) the trunking that breaks different again from same trunking group p1, p2, p3 and p4 simultaneously organizes.
2) open PON1 and PON3 interface
3) open p1, p2, p3 and p4 interface.
As shown in Figure 4, the method that realizes the cross-line card protection in the GPON system of the present invention comprises:
OLT interface on step 1, each GPON ply-yarn drill and one or more interface bindings that link to each other with the master control power board, when a plurality of master control power board interfaces and an OLT interface binding, need be together with a plurality of master control power board interface trunking, a master control power board interface can only be bound with an OLT interface.
Step 2, set up the protection group, assigned work OLT interface and protection OLT interface, simultaneously
1) will be placed on the master control power board interface that work OLT interface and protection OLT interface bind together in the trunking group;
2) send message to ply-yarn drill, close protection OLT interface and and the master control power board interface of protection OLT interface conjunctionn.
GPON MAC on step 3, the ply-yarn drill such as K1, the K2 byte of extracting protection OLT and work OLT, produces alarm and alarm clearing etc. according to the mechanism works of standard definition.
Step 4, ply-yarn drill need send to the information of obtaining in the step 3 the master control power board.
Current OLT interface that should be in running order is judged in the K1 that the protection module of step 5, master control power board is sent here according to ply-yarn drill, K2 byte, alarm etc., generates new K1, K2 byte.
Step 6, master control power board protection module open or close corresponding interface in the trunking group according to result calculated.
Step 7, master control power board protection module open or close the OLT interface according to result calculated, simultaneously newly-generated K1, K2 byte are sent to ply-yarn drill, are set among the PLOAM by ply-yarn drill.
When step 8, deletion protection group establishment protection group state is in the past arrived in configuration restore, open the master control power board interface of two PON1 mouths and PON3 mouth correspondence simultaneously.
Claims (4)
1. a method that realizes the cross-line card protection on gigabit passive optical network equipment is characterized in that, comprises the steps:
Optical line terminal interface on step 1, each gigabit passive optical network ply-yarn drill and at least one interface that links to each other with master control power board binding;
Step 2, set up a protection group, assigned work optical line terminal interface and protection optical line terminal interface, the master control power board interface that will link to each other with two optical line terminal interfaces is placed in the same aggregation of links group simultaneously;
Step 3, master control power board are protected calculating, and definite optical line terminal interface that should be in running order opens and closes corresponding optical line terminal interface then respectively, and the master control power board interface corresponding with them;
Work optical line terminal interface on step 4, the ply-yarn drill and protection optical line terminal interface are according to the regulation work of standard, receive K1, the K2 byte of protection optical line terminal interface and work optical line terminal interface, produce alarm, the information of aforementioned reception and generation is sent to the master control power board;
The protection module of step 5, master control power board receives K1, K2 byte and the warning information that ply-yarn drill is sent here; protect computing; obtain current in running order optical line terminal interface; generate new K1, K2 byte; and newly-generated byte sent to ply-yarn drill, put in the physical layer management cell by ply-yarn drill.
2. the method that realizes the cross-line card protection on gigabit passive optical network equipment as claimed in claim 1 is characterized in that:
When not needing protection group, deletion protection group,
Configuration restore to creating protection group state in the past, is opened two optical line terminal interfaces and corresponding master control power board interface thereof simultaneously.
3. the method that realizes the cross-line card protection on gigabit passive optical network equipment as claimed in claim 1 or 2 is characterized in that:
In the described step 1, when a plurality of master control power board interfaces and an optical line terminal interface binding, a plurality of master control power board interface links need be flocked together, a master control power board interface can only be bound with an optical line terminal interface.
4. the method that realizes the cross-line card protection on gigabit passive optical network equipment as claimed in claim 1 or 2 is characterized in that,
The interface corresponding in the aggregation of links group and the interface of optical line terminal are opened or closed to master control power board protection module in the described step 5 with newly-generated K1, when the K2 byte sends to ply-yarn drill according to the result who protects computing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101377208A CN101170837B (en) | 2006-10-27 | 2006-10-27 | A method for realizing cross-cable card protection on Gbit passive optical network device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101377208A CN101170837B (en) | 2006-10-27 | 2006-10-27 | A method for realizing cross-cable card protection on Gbit passive optical network device |
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| Publication Number | Publication Date |
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| CN101170837A CN101170837A (en) | 2008-04-30 |
| CN101170837B true CN101170837B (en) | 2010-08-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130717B (en) * | 2010-01-18 | 2015-04-01 | 中兴通讯股份有限公司 | Method for realizing distributed protection and passive optical network (PON) system |
| CN102130718B (en) * | 2010-01-20 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of network element device of protection switching of backbone optical path and method |
| CN102801611B (en) * | 2012-07-05 | 2018-11-16 | 南京中兴新软件有限责任公司 | A kind of method that realizing cross-line card MSP, main control chip and PTN device |
| CN105187497B (en) * | 2015-08-07 | 2018-02-13 | 上海斐讯数据通信技术有限公司 | A kind of line card management method based on distributed system OLT device |
| CN109005474B (en) * | 2018-05-24 | 2021-03-02 | 烽火通信科技股份有限公司 | LOS (line of sight) alarm method and system for Combo-PON (Combo-Passive optical network) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041852A2 (en) * | 1999-03-30 | 2000-10-04 | Nec Corporation | Protection switching method and apparatus for passive optical network system |
| CN1275277A (en) * | 1997-02-10 | 2000-11-29 | 光网络公司 | Method and apparatus for operation, protection and restoration of heterogenous optical communication networks |
| CN1764123A (en) * | 2005-09-12 | 2006-04-26 | 中国移动通信集团公司 | Optical fibre access network and its communication protection method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275277A (en) * | 1997-02-10 | 2000-11-29 | 光网络公司 | Method and apparatus for operation, protection and restoration of heterogenous optical communication networks |
| EP1041852A2 (en) * | 1999-03-30 | 2000-10-04 | Nec Corporation | Protection switching method and apparatus for passive optical network system |
| CN1764123A (en) * | 2005-09-12 | 2006-04-26 | 中国移动通信集团公司 | Optical fibre access network and its communication protection method |
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