CN103209021B - A kind of bidirectional protective method of balanced system of gfp frame mapping encapsulation business - Google Patents
A kind of bidirectional protective method of balanced system of gfp frame mapping encapsulation business Download PDFInfo
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Abstract
A kind of bidirectional protective method of balanced system of gfp frame mapping encapsulation business, relate to GFP-F encapsulation business scope, comprise step: S1. defines respectively different patterns according to different alarms, two Status Types of the corresponding laser instrument of each alarm, i.e. the open mode of alarm triggered laser instrument, off state; S2. judge whether to occur active and standby link switchover, if occur, after a local terminal electricity mouthful side joint is received alarm pattern, check the Status Type of local terminal customer side laser instrument, if off state,, with the Status Type comparison of current lasers, Status Type is updated to the corresponding Status Type of alarm that priority is high; S3. by current Status Type, determine whether local terminal electricity mouthful side sends the electricity mouth side of the corresponding pattern of alarm institute to the symmetrical other end; S4. taking different modes to realize protection switches; In the time there is disconnected fibre in node in link, can effectively complete respective operations, realize protection and switch, avoid being absorbed in thinking or concussion state.
Description
Technical field
The present invention relates to GFP-F (GenericFramingProcedure-Framed, general frame formingThe mapping of code-frame) specifically encapsulation business scope is that a kind of gfp frame shines upon encapsulation businessThe bidirectional protective method of balanced system.
Background technology
As shown in Figure 1, be the protection model figure of balanced system, comprise OTN equipment (OpticalTransportNetwork, optical transfer network) and the ASON (Automatically of its both sidesSwitchedOpticalNetwork, i.e. ASON) equipment, wherein OTN establishesStandby is axially symmetric structure, the GF12 (MSTP in ASON equipment of an ASON equipmentEquipment is mainly the equipment of SDH business) successively signal connect first in OTN equipmentRoad board, the first circuit board, the second circuit board, the second branch road board and secondGE (GigabitEthernet, the Ethernet of gigabit transfer rate) on ASON equipmentInterface, forms a link; In addition, balanced system also has a same reserve link.
The principle of switching based on protection, symmetrical connected system is under auto-negotiation mechanism, if node 3Occur disconnected fibre, GE receives alarm, and return messages are to the second branch road board, in OTN equipmentThe GF12 that with the first circuit board of its symmetry, information is passed to electricity mouthful side ASON equipment, touchesSend out and switch, adopt reserve link communication, until after disconnected fine reparation, switch back former link. ButThis switching easily after switching, cannot switch back former link, is absorbed in deadlock state, orArticle two, link is switched back and forth, forms concussion. Especially many places node breaks down, and makes single-deckBe thrown into confusion, when multiple nodes recover one by one, be absorbed in deadlock or vibration,Cause eventually this link to recover.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide a kind of GFPThe bidirectional protective method of the balanced system of frame mapping (GFP-F) encapsulation business, when saving in linkWhen disconnected fibre appears in point, can effectively complete respective operations, realize protection and switch, avoid being absorbed in think ofRope or concussion state.
For reaching above object, the technical scheme that the present invention takes is: a kind of gfp frame mappingThe bidirectional protective method of the balanced system of encapsulation business, based on comprising OTN equipment and its both sidesThe balanced system of ASON equipment, OTN equipment is by two symmetrical branch road boards respectivelyWith each ASON devices communicating, wherein each tributary card links a side that connects ASON equipmentFor customer side, a side that connects OTN inside is electricity mouthful side, and ASON equipment has laser instrument,Also comprise the steps: that S1. defines respectively different patterns according to different alarms, each alarm pairAnswer two Status Types of laser instrument, i.e. the open mode of alarm triggered laser instrument, off state;S2. judge whether to occur active and standby link switchover, if occur, a local terminal electricity mouthful side joint is received alarmAfter pattern, check the Status Type of local terminal customer side laser instrument, if off state,With the Status Type comparison of current lasers, Status Type is updated to the alarm institute that priority is highCorresponding Status Type; S3. by current Status Type, determine whether a local terminal electricity mouthful side is sent outSend alarm corresponding pattern to the electricity mouthful side of the symmetrical other end; S4. taking different modes to realize protectsProtective switching.
On the basis of technique scheme, in described S1, described alarm type comprises signalDeteriorated alarm, the alarm of signal disconnecting, receipts No Light Alarm, regeneration LOF alarm, regenerationLOF alarm is replied, and wherein Signal Degrade alarm, the alarm of signal disconnecting, receives unglazed announcementThe alarm that police receives for local terminal customer side, regeneration LOF alarm is replied as local terminal electricity mouth side jointThe alarm of receiving.
On the basis of technique scheme, the corresponding pattern of Signal Degrade alarm is 1, and signal connectsConnecing the corresponding pattern of interruption alarm is 2, and receiving the corresponding pattern of No Light Alarm is 3, regeneration LOF announcementThe corresponding pattern of alert reply is 4.
On the basis of technique scheme, the state of described laser instrument comprises: NORMAL,It is the normal condition of laser instrument; LDOFF, local terminal customer side is received signal disconnecting announcementAlert; LDON, last local terminal customer side is received the alarm of signal disconnecting, this is receivedNormal information; SDOFF, local terminal customer side is received Signal Degrade alarm; SDON,Last local terminal customer side is received Signal Degrade alarm, and this receives normal information; B_RSLOFOFF, a local terminal electricity mouthful side is received regeneration LOF alarm reply; B_RSLOFON, originallyAn end electricity mouthful side last time is received regeneration LOF alarm reply, and this receives normal information;RS_LOFOFF, a local terminal electricity mouthful side is received regeneration LOF alarm; RS_LOFON,A last local terminal electricity mouthful side is received regeneration LOF alarm, and this receives normal information; RLOSOFF, local terminal customer side is received receipts No Light Alarm; RLOSON, i.e. last local terminal clientSide is received receipts No Light Alarm, and this receives normal information.
On the basis of technique scheme, the detailed step of described S2 is: S21. judgement isNoly there is active and standby link switchover, if so, entered S23, if not, entered S22; S22.Directly carry out active and standby link switchover; S23. the corresponding laser instrument of local terminal customer side alarm relatively beforeStatus Type and the Status Type of current local terminal customer side, judge the two which height of priority,If the Status Type priority of current customer side is high, enter S24; If the state of customer side beforeType priority level is high, enters S25; S24. directly upgrade the corresponding Status Type of alarm;S25. the corresponding Status Type of alarm before keeping.
On the basis of technique scheme, the priority of the Status Type of described laser instrument is:Other states of B_RSLOFOFF > RS_LOFOFF >, not preferential between other each statesLevel, and when laser instrument open mode, without priority.
On the basis of technique scheme, at the shape of laser instrument corresponding to local terminal customer side alarmUnder state type, an electricity mouthful side sends corresponding alarm pattern, when alarm is for receiving No Light Alarm, anyUnder the state of laser instrument, all send and receive No Light Alarm pattern by electricity mouthful side; When alarm signal deterioratedAlarm, when laser instrument state is NORMAL, the local terminal electricity mouthful deteriorated alarm code of side transmitted signalType; When there is no alarm, laser instrument state is NORMAL, LDON, SDON, B_RSLOFWhen ON, RS_LOFON or RLOSON, local terminal electricity mouthful side sends NORMAL alarmPattern.
On the basis of technique scheme, the state of laser instrument corresponding to local terminal customer side alarmUnder type, send corresponding alarm pattern in a local terminal electricity mouthful side, when alarm is signal disconnectingAlarm, when laser instrument state is NORMAL, transmitted signal disconnecting alarm pattern; WhenAlarm is the alarm of signal disconnecting, laser instrument state be LDON, SDON, RLOSON,When B_RSLOFON or RS_LOFON, needing further judgement is current intrinsic signalDisconnecting alarm or new signal disconnecting alarm, if current intrinsic alarm is neglectedThe alarm of slightly receiving; Otherwise, the pattern of local terminal electricity mouthful side transmitted signal disconnecting alarm.
On the basis of technique scheme, when alarm is Signal Degrade alarm, laser instrument stateFor LDOFF, SDOFF, RS_LOFOFF, RLOSOFF or B_RSLOFOFFTime, ignore the alarm of receiving.
On the basis of technique scheme, in described step S4, laser instrument state is LDOFF, SDOFF, RLOSOFF, all close customer side laser instrument; Laser instrument state isLDON, SDON, RLOSON, all open customer side laser instrument; Laser instrument state isWhen B_RSLOFOFF, turn-off the customer side laser instrument of local terminal; Laser instrument state isWhen B_RSLOFON, open local terminal customer side laser instrument; Laser instrument state is RS_LOFOFF, turn-offs corresponding local terminal customer side laser instrument, and laser instrument state is RS_LOFON,Open the customer side laser instrument of corresponding local terminal.
Beneficial effect of the present invention is: by adopting the processing of different conditions Type Control alarm,In the time that alarm produces, according to the Status Type of the corresponding laser instrument of current alarm, switch,Avoid deadlock; When alarm disappears, judge the mechanism of production of signal disconnecting alarm,Avoid occurring vibration or deadlock.
Brief description of the drawings
Fig. 1 is the protection model figure of balanced system;
Fig. 2 is the bidirectional protective method figure of the balanced system of GFP-F encapsulation business of the present invention;
Fig. 3 is the detailed step of step S2 in Fig. 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 2, the bidirectional protective side of the balanced system of GFP-F encapsulation business of the present inventionMethod, based on the balanced system of ASON equipment that comprises OTN equipment and its both sides, OTN establishesStandby by two symmetrical branch road boards respectively with each ASON devices communicating, wherein eachIt is customer side that tributary card links a side that connects ASON equipment, and a side that connects OTN inside isElectricity mouthful side, ASON equipment has laser instrument, and described bidirectional protective method comprises the steps:
S1. define respectively different patterns according to different alarms, each alarm has each alarm toolThere are two corresponding states types of laser instrument, i.e. the open mode of alarm triggered laser instrument, shutoffState. Described alarm type comprises Signal Degrade alarm (SD), signal disconnecting(LINK_DOWN) alarm, receipts No Light Alarms (RLOS), regeneration LOF alarm(RS_LOF), (BACKWARD_RSLOF) replied in regeneration LOF alarm, whereinSD alarm, LINK_DOWN alarm, regeneration LOF alarm, RLOS alarm are clientThe alarm that side joint is received, BACKWARD_RSLOF is the alarm that electricity mouthful side joint is received, does not haveThere is the situation of alarm to represent NONE.
If table 1 is patterns corresponding to different alarm kinds, and alarm explanation signal:
Table 1
Wherein, the corresponding pattern of NONE alarm is 0, represents that the customer side of the symmetrical other end is without appointingWhat alarm. The corresponding pattern of SD alarm is 1, represents that the customer side of the symmetrical other end has SD alarm.The corresponding pattern of LINK_DOWN alarm is 2, represents that the customer side of the symmetrical other end hasLINK_DOWN alarm. The corresponding pattern of RLOS alarm is 3, represents symmetrical other end clientSide has RLOS alarm. It is 4 that corresponding pattern is replied in BACKWARD_RSLOF alarm, tableShow that symmetrical one end customer side has receipts No Light Alarm. RS_LOF alarm is electricity mouthful side alarm, instituteHaving reception and the protection of above pattern, is all based on electricity mouthful side under the prerequisite without RS_LOF alarmCarry out.
Table 2
As shown in Table 2, the state of described laser instrument comprises: NORMAL, swashsThe normal condition of light device; LDOFF, local terminal customer side is received signal disconnecting(LINK_DOWN) alarm; LDON, last local terminal customer side is receivedLINK_DOWN alarm, this receives normal information; SDOFF, local terminal electricity mouthful side is receivedTo Signal Degrade alarm; SDON, a last local terminal electricity mouthful side is received Signal Degrade alarm,This receives normal information; B_RSLOFOFF, a local terminal electricity mouthful side is received regeneration LOFAlarm is replied; B_RSLOFON, a local terminal electricity mouthful side last time is received regeneration LOF alarmReply, this receives normal information; RS_LOFOFF, a local terminal electricity mouthful side is received regeneration frameLose alarm; RS_LOFON, a last local terminal electricity mouthful side is received regeneration LOF alarm,This receives normal information; RLOSOFF, a local terminal electricity mouthful side is received receipts No Light Alarm;RLOSON, last local terminal customer side is received receipts No Light Alarm, this receives normal letterBreath.
As shown in Figure 3, the detailed step of described S2 is:
S21. judge whether to have occurred active and standby link switchover, if so, enter S23, if not,Enter S22.
S22. directly carry out active and standby link switchover.
S23. Status Type and the current customer side of the corresponding laser instrument of customer side alarm relatively beforeSide laser instrument Status Type, judges the two which height of priority, if the state of current customer sideType priority level is high, enters S24; If the Status Type of the corresponding laser instrument of user's side alarm beforePriority is high, enters S25. The priority of the Status Type of described laser instrument is: B_RSLOFOther states of OFF > RS_LOFOFF >, do not have priority between other each states, and swashWhen light device open mode, without priority.
S24. directly upgrade the corresponding Status Type of alarm.
S25. the corresponding Status Type of alarm before keeping.
In table 2, " √ " represents to send alarm pattern to customer side; “ ╳ " represent under this state,Can not there is alarm; " ≡ " represents to ignore the alarm of receiving; " AlwayLD: √ " representsFurther judgement.
When alarm is RLOS alarm, under the state of any laser instrument, all sent out by a local terminal electricity mouthful sideSend and receive No Light Alarm pattern; When alarm is RS_LOF alarm, under the state of any laser instrument,All can not there is alarm.
When alarm is LINK_DOWN alarm, when laser instrument state is NORMAL, send outSend alarm pattern to customer side; When alarm is LINK_DOWN alarm, laser instrument state isWhen LDON, SDON, RLOSON, B_RSLOFON or RS_LOFON, needFurther judge, be current intrinsic LINK_DOWN alarm, or newLINK_DOWN alarm, if the alarm of receiving is ignored in current intrinsic alarm; Otherwise,The pattern of signal disconnecting alarm. When alarm is LINK_DOWN alarm, laser instrument shapeState is LDOFF, SDOFF, B_RSLOFOFF, RS_LOFOFF or RLOSOFF,All ignore the alarm of receiving.
When alarm is SD alarm, when laser instrument state is NORMAL, send alarm codeType is to customer side; Laser instrument state be LDOFF, SDOFF, B_RSLOFOFF,RS_LOFOFF or RLOSOFF, all ignore the alarm of receiving; Laser instrument state is LDWhen ON, SDON, RLOSON, B_RSLOFON or RS_LOFON, impossibleThere is alarm.
When there is no alarm, i.e. NONE, laser instrument state is NORMAL, LDON, SDWhen ON, RLOSON, B_RSLOFON or RS_LOFON, send alarm pattern and arriveCustomer side; Laser instrument state is LDOFF, SDOFF, B_RSLOFOFF, RS_LOF, can not there is alarm in OFF or RLOSOFF.
In described step S4, laser instrument state is LDOFF, SDOFF, RLOSOFF,The Status Type that all represents local terminal customer side laser instrument is off state; Laser instrument state is LDON, SDON, RLOSON, all represent that local terminal customer side is open mode; Laser instrument shapeWhen state is B_RSLOFOFF, expression local terminal electricity mouthful side is received what symmetrical other end end returnedRS_LOF information, a symmetrical other end electricity mouthful side has RS_LOF alarm, and local terminal customer side swashsLight device is off state; When laser instrument state is B_RSLOFON, represent local terminal customer sideLaser instrument is open mode; Laser instrument state is RS_LOFOFF, and a local terminal electricity mouthful side hasRS_LOF, corresponding local terminal customer side laser instrument is off state, laser instrument state isRS_LOFON, represents that there is RS_LOF alarm a local terminal electricity mouthful side last time, this RS_LOFAlarm disappears, and corresponding local terminal customer side laser instrument is open mode.
In conjunction with foregoing, when laser instrument state is LDOFF, an expression local terminal electricity mouthful side is receivedAlarm pattern be LINK_DOWN alarm pattern, turn-off customer side laser instrument, by laserDevice state is updated to LDOFF. In the time that laser instrument state is LDON, represent originally lastThe pattern that end electricity mouthful side is received is LINK_DOWN alarm pattern, turn-offs local terminal customer side and swashsLight device; This receives normal information, opens local terminal customer side laser instrument, by laser instrument state moreNew is LDON.
When laser instrument state is SDOFF, represent that the pattern that local terminal electricity mouthful side is received is that SD accusesAlert pattern, turn-offs local terminal customer side laser instrument, and laser instrument state is updated to SDOFF. WhenLaser instrument state is SDON, represents that the pattern that last local terminal electricity mouthful side is received is SD alarm,Turn-off local terminal customer side laser instrument, this receives normal information, opens local terminal customer side laser instrument,Laser instrument state is updated to SDON.
Laser instrument state is B_RSLOFOFF, represents that the pattern that local terminal electricity mouthful side is received isBACKWARD_RSLOF alarm pattern, a symmetrical other end electricity mouthful side is received RS_LOF,Send BACKWARD_RSLOF alarm to local terminal, turn-off local terminal customer side laser instrument, willLaser instrument state is updated to B_RSLOFOFF. Laser instrument state is B_RSLOFON, tableShow that the pattern that last local terminal electricity mouthful side is received is BACKWARD_RSLOF alarm pattern,Turn-off local terminal customer side laser instrument, this receives normal information, opens local terminal customer side laser instrument,Laser instrument state is updated to B_RSLOFON.
Laser instrument state is RS_LOFOFF, and an expression local terminal electricity mouthful side is received RS_LOF alarm,The laser instrument that turn-offs local terminal customer side, is updated to RS_LOFOFF by laser instrument state. LaserDevice state is RS_LOFON, represents that a last local terminal electricity mouthful side receives RS_LOF alarm,Turn-off the laser instrument of local terminal customer side, in the time that an electricity mouthful side RS_LOF alarm disappears, open correspondenceThe laser instrument of customer side, is updated to RS_LOFON by laser instrument state.
Laser instrument state is RLOSOFF, represents that the pattern that local terminal electricity mouthful side is received is RLOSAlarm pattern, turn-offs local terminal customer side laser instrument, and laser instrument state is updated to RLOSOFF.Laser instrument state is RLOSON, represents that the pattern that last local terminal electricity mouthful side is received is RLOSAlarm, turn-offs local terminal customer side laser instrument, and this receives normal information, opens local terminal customer sideLaser instrument, is updated to RLOSON by laser instrument state.
Be described in more detail the present invention below by a specific embodiment.
As shown in Figure 1,
When node 2 and node 5 break down, receive RS_LOF alarm, according to currentState, if in switch status, upgrading current switch status is that RS_LOF brings out; AsFruit is not switched, and forcing and upgrading current state is the protection that RS_LOF brings out. When node 1After breaking down with node 4, the customer side that shows as two branch road boards is RLOS alarm,Now regardless of switch status, the pattern that need to send RLOS alarm is to the symmetrical other endBranch road board, the branch road board of the symmetrical other end is according to current switch status, according to separatelyPriority shifts switch status, is convenient to fault and disappears, and cancels protection and switches.
After node 3 and node 6 break down, the downstream plate of node 1, node 4 correspondencesLINK_DOWN alarm is received in clamping, according to switch status, adopts the method for asymmetric inhibitionMethod, judge whether to transmit the branch road board of defect pattern to the symmetrical other end. Above-mentioned foundationDifferent node failures, show different alarms, realize protection and switch. Due to the execution of switchingAfterwards, cause original link down, the downstream of corresponding node 1, node 4 producesLINK_DOWN alarm, therefore carves the state of following the tracks of LINK_DOWN alarm when needed,The generation reason of determining LINK_DOWN alarm, completes issuing of defect pattern, simultaneouslyAvoid being absorbed in deadlock, follow the tracks of LINK_DOWN state by level and smooth inhibition method.
The present invention's application auto-negotiation mechanism, can expand to: only need the service source/place in systemBetween the equipment of two ends docking, possess any one end and receive that fault can inform the function of opposite equip..
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications,Within these improvements and modifications are also considered as protection scope of the present invention. In this description, do not do in detailThe content of describing belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. a bidirectional protective method for the balanced system of gfp frame mapping encapsulation business, based onComprise the balanced system of the ASON equipment of OTN equipment and its both sides, OTN equipment is by rightClaim two branch road boards respectively with each ASON devices communicating, wherein each branch road boardA side that connects ASON equipment is customer side, and a side that connects OTN inside is electricity mouthful side,ASON equipment has laser instrument, it is characterized in that, also comprises the steps:
S1. define respectively different patterns according to different alarms, two of the corresponding laser instrument of each alarmIndividual Status Type, the i.e. open mode of alarm triggered laser instrument, off state;
S2. judge whether to occur active and standby link switchover, if occur, a local terminal electricity mouthful side joint is receivedAfter alarm pattern, check the Status Type of local terminal customer side laser instrument, if off state,, with the Status Type comparison of current lasers, Status Type is updated to the alarm that priority is highCorresponding Status Type;
S3. by current Status Type, determine whether a local terminal electricity mouthful side sends alarm institute correspondingPattern is to the electricity mouthful side of the symmetrical other end;
S4. the mode of taking to turn-off/open laser instrument realizes protection and switches.
2. the balanced system of gfp frame mapping encapsulation business as claimed in claim 1 is two-wayGuard method, is characterized in that: in described S1, described alarm type comprises Signal Degrade announcementPolice, the alarm of signal disconnecting, receipts No Light Alarm, regeneration LOF alarm, regeneration LOFAlarm is replied, wherein Signal Degrade alarm, the alarm of signal disconnecting, regeneration LOF alarm,Receiving No Light Alarm is the alarm that local terminal customer side receives, and regeneration LOF alarm is replied as local terminalThe alarm that electricity mouthful side joint is received.
3. the balanced system of gfp frame mapping encapsulation business as claimed in claim 2 is two-wayGuard method, is characterized in that: the corresponding pattern of Signal Degrade alarm is 1, signal disconnectingThe corresponding pattern of alarm is 2, and receiving the corresponding pattern of No Light Alarm is 3, and regeneration LOF alarm is repliedCorresponding pattern is 4.
4. the balanced system of gfp frame mapping encapsulation business as claimed in claim 2 is two-wayGuard method, is characterized in that: the state of described laser instrument comprises: NORMAL, swashsThe normal condition of light device; LDOFF, local terminal customer side is received the alarm of signal disconnecting;LDON, last local terminal customer side is received the alarm of signal disconnecting, this is received normallyInformation; SDOFF, local terminal customer side is received Signal Degrade alarm; SDON, goes up oneInferior local terminal customer side is received Signal Degrade alarm, and this receives normal information; B_RSLOFOFF, a local terminal electricity mouthful side is received regeneration LOF alarm reply; B_RSLOFON, originallyAn end electricity mouthful side last time is received regeneration LOF alarm reply, and this receives normal information;RS_LOFOFF, a local terminal electricity mouthful side is received regeneration LOF alarm; RS_LOFON,A last local terminal electricity mouthful side is received regeneration LOF alarm, and this receives normal information; RLOSOFF, local terminal customer side is received receipts No Light Alarm; RLOSON, i.e. last local terminal clientSide is received receipts No Light Alarm, and this receives normal information.
5. the balanced system of gfp frame mapping encapsulation business as claimed in claim 4 is two-wayGuard method, is characterized in that: the detailed step of described S2 is:
S21. judge whether to have occurred active and standby link switchover, if so, enter S23, if not,Enter S22;
S22. directly carry out active and standby link switchover, finish;
S23. relatively before the Status Type of the corresponding laser instrument of local terminal customer side alarm and currentHold the Status Type of customer side, judge which height of priority of the two, if the shape of current customer sideState type priority level is high, enters S24; If the Status Type priority of customer side is high before, enterEnter S25;
S24. directly upgrade the corresponding Status Type of alarm, finish;
S25. the corresponding Status Type of alarm before keeping.
6. the balanced system of gfp frame mapping encapsulation business as claimed in claim 5 is two-wayGuard method, is characterized in that: the priority of the Status Type of described laser instrument is:Other states of B_RSLOFOFF > RS_LOFOFF >, not preferential between other each statesLevel, and when laser instrument open mode, without priority.
7. the balanced system of gfp frame mapping encapsulation business as claimed in claim 4 is two-wayGuard method, is characterized in that: at the Status Type of laser instrument corresponding to local terminal customer side alarmUnder, an electricity mouthful side sends corresponding alarm pattern, when alarm is for receiving No Light Alarm, any laser instrumentState under, all send and receive No Light Alarm pattern by electricity mouthful side; When alarm is Signal Degrade alarm,When laser instrument state is NORMAL, the local terminal electricity mouthful deteriorated alarm pattern of side transmitted signal; WhenThere is no alarm, laser instrument state be NORMAL, LDON, SDON, B_RSLOFON,When RS_LOFON or RLOSON, local terminal electricity mouthful side sends NONE pattern.
8. the balanced system of gfp frame mapping encapsulation business as claimed in claim 4 is two-wayGuard method, is characterized in that: under the Status Type of laser instrument corresponding to local terminal customer side alarm,Send corresponding alarm pattern in a local terminal electricity mouthful side, when alarm is the alarm of signal disconnecting, swashWhen light device state is NORMAL, transmitted signal disconnecting alarm pattern; When alarm is letterNumber disconnecting alarm, laser instrument state be LDON, SDON, RLOSON,When B_RSLOFON or RS_LOFON, needing further judgement is current intrinsic signalDisconnecting alarm or new signal disconnecting alarm, if current intrinsic alarm is neglectedThe alarm of slightly receiving; Otherwise, the pattern of local terminal electricity mouthful side transmitted signal disconnecting alarm.
9. the balanced system of gfp frame mapping encapsulation business as claimed in claim 4 is two-wayGuard method, is characterized in that: when alarm is Signal Degrade alarm, laser instrument state is LDWhen OFF, SDOFF, RS_LOFOFF, RLOSOFF or B_RSLOFOFF, neglectThe alarm of slightly receiving.
10. as the gfp frame mapping as described in arbitrary in claim 4,5,6,7,8 or 9The bidirectional protective method of the balanced system of encapsulation business, is characterized in that: in described step S4,Laser instrument state is LDOFF, SDOFF, RLOSOFF, all closes the customer side of local terminalLaser instrument; Laser instrument state is LDON, SDON, RLOSON, all opens local terminalCustomer side laser instrument; When laser instrument state is B_RSLOFOFF, turn-off the customer side of local terminalLaser instrument; When laser instrument state is B_RSLOFON, open local terminal customer side laser instrument;Laser instrument state is RS_LOFOFF, turn-offs corresponding local terminal customer side laser instrument, laser instrumentState is RS_LOFON, opens the customer side laser instrument of corresponding local terminal.
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| CN105871453B (en) * | 2016-05-25 | 2018-04-20 | 烽火通信科技股份有限公司 | A kind of method that data service protection is realized under OTN equipment |
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| CN1753342A (en) * | 2004-09-21 | 2006-03-29 | 华为技术有限公司 | Method of implementing protection switching in light network |
| CN101908981A (en) * | 2010-09-03 | 2010-12-08 | 烽火通信科技股份有限公司 | Method for shielding and uniformly processing alarm and performance data |
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| US7379481B2 (en) * | 2003-05-30 | 2008-05-27 | Hubbell Incorporated | Apparatus and method for automatic provisioning of SONET multiplexer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753342A (en) * | 2004-09-21 | 2006-03-29 | 华为技术有限公司 | Method of implementing protection switching in light network |
| CN101908981A (en) * | 2010-09-03 | 2010-12-08 | 烽火通信科技股份有限公司 | Method for shielding and uniformly processing alarm and performance data |
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