CN104144121B - Avoid switching the method, apparatus and system of transmission in sectionalised protection - Google Patents
Avoid switching the method, apparatus and system of transmission in sectionalised protection Download PDFInfo
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- CN104144121B CN104144121B CN201310170444.5A CN201310170444A CN104144121B CN 104144121 B CN104144121 B CN 104144121B CN 201310170444 A CN201310170444 A CN 201310170444A CN 104144121 B CN104144121 B CN 104144121B
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Abstract
The invention discloses a kind of method, apparatus and system for avoiding switching transmission in sectionalised protection, it is related to optics transport network technology field.This method, which is included in the second equipment at the point of interface of sectionalised protection, sets channel layer to alert blocking point；Second equipment receives the signal of upstream transmission, and the signal transmitted to upstream is detected；Second equipment detects channel layer in the signal that upstream is transmitted and alerts laggard row of channels layer expense regeneration, to the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, to block channel layer alarm downstream to transmit, the 3rd equipment is not performed and select receipts to switch.The present invention can avoid a failure from causing multi-stage protective to perform switching, it is possible to reduce the drop-out time of business, meanwhile, the limitation without neighbor device node can effectively solve the problems, such as to configure intercommunication, it is necessary to the negligible amounts of configuration node.
Description
Technical field
The present invention relates to optics transport network technology field, more particularly to a kind of side for avoiding switching transmission in sectionalised protection
Method, equipment and system.
Background technology
Non-intervention type monitors SNCP（Abbreviation SNC N are protected）Based on dual transmitting and receiving mechanism, source is logical to work
Road and protection passage send signal, the normal channel reception of egress selection signal simultaneously.When breaking down, the egress of protection group
It will trigger and switch when receiving channel layer alarm, channel layer alarm can be downstream inserted when switching, so as to cause downstream to configure
Sectionalised protection also switch, so as to occur in that the problem of switching transmission, the problem may extend the drop-out time of business.
Inherent monitoring SNCP as defined in ITU-T OTN standards（Abbreviation SNC I are protected）Provided with SDH standards
Multiplex section 1+1 protection, by by OTU layers or multiplex section alarm switched to trigger.This kind of mechanism can avoid switching downstream passing
Pass, but be only capable of in adjacent OTN（Optical Transport Network, optical transfer network）Equipment or adjacent SDH
（Synchronous Digital Hierarchy, SDH）Enabled between equipment.If double send out equipment and select receipts to set
Also exist between standby OTN equipment will there arises a problem that：It is shown in Figure 1 in SNC I protections by taking SNC I protections as an example
In avoid switching the principle schematic downstream transmitted, in double hair equipment and select between receiving unit and also there is OTN equipment, double hairs
SM sections 1 are set between OTN equipment and OTN equipment, OTN equipment is set to SM sections 2, and OTN equipment and choosing are set to SM between receiving OTN equipment
Section 3, wherein, SM represents that section is monitored, and when the service aisle of SM sections 1 breaks down, OTU is received at 1（Optical transport unit）Layer alarm,
Regenerated at 2, downstream transmitted there is no OTU layers of alarm, OTU layers of alarm are can't detect at 3, then select receiving unit not occur
Switch, cause service signal to interrupt.Avoid switching the principle downstream transmitted in multiplex section 1+1 protection with being kept away in SNC I protections
Exempt to switch that the principle downstream transmitted is similar, the problem of having same repeats no more here.
Sublayer monitors SNCP specified in ITU-T OTN standards（Abbreviation SNC S are protected）, by protection section
Two ends set TCM（Tandem Connection Monitor）Segment identification, can will switch and be limited in TCM sections, downstream be passed with avoiding switching
Pass.However, it is desirable to set TCM information respectively at two end nodes of each section of protection, the node for being related to configuration is more, and needs
Two ends coordinate, if terminal device belongs to different manufacturers, there are problems that the intercommunication between different vendor.
The content of the invention
A technical problem to be solved of the embodiment of the present invention is：A kind of non-intervention type monitoring SNCP is provided
In avoid switching the solution of transmission, while break away from the limitation of neighbouring device, reduce the node of configuration, solve the intercommunication of configuration
Problem.
The one side of the embodiment of the present invention provides a kind of method for avoiding switching transmission in sectionalised protection, including：
Set channel layer to alert in the second equipment at the point of interface positioned at sectionalised protection and block point；Second equipment receives upstream transmission
Signal, and to upstream transmit signal detect；Second equipment detects channel layer alarm in the signal that upstream is transmitted
Laggard row of channels layer expense regeneration, to the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, to block
Channel layer alarm is downstream transmitted, and the 3rd equipment is not performed and is selected receipts to switch.
The method for switching transmission is avoided also to include in sectionalised protection：If the first equipment of the second equipment and its upstream it
Between exist the 4th equipment, when the service aisle between the 4th equipment and the first equipment of its upstream breaks down, the 4th equipment
Channel layer alarm is inserted in the signal downstream transmitted.
The method for switching transmission is avoided also to include in sectionalised protection：If the first equipment of the second equipment and its upstream it
Between there is no other optical transfer networks OTN equipment, when the service aisle between the second equipment and the first equipment of its upstream breaks down
When, the second equipment, which is performed, selects receipts to switch, while inserting channel layer alarm in the signal downstream transmitted；Second equipment to comprising
The signal of channel layer alarm performs double hair operations.
Second equipment includes choosing and receives unit, double bills member and channel layer alarm blocking unit；Unit and double bill members are received in choosing
In cross matrix；Channel layer alarm blocking unit is set on assist side card, and circuit board is in the downstream of double bill members；
Unit is received in choosing to be used to detect in the signal that upstream is transmitted after channel layer alarm, and execution selects receipts to switch；Or, choosing is received unit and used
In when the service aisle between the second equipment and the first equipment of its upstream breaks down, execution selects receipts to switch, at the same to
Insertion channel layer alarm in the signal of downstream transmission；Double bill members are used to grasp the double hairs of signal execution alerted comprising channel layer
Make；Channel layer alarm blocking unit is used to detect the laggard row of channels layer expense regeneration of channel layer alarm, to the 3rd downstream
Equipment Transfer pipe layer expense is the signal of normal condition, to block channel layer alarm downstream to transmit, the 3rd equipment is not held
Row selects receipts to switch.
Second equipment, which detects channel layer and alerts laggard row of channels layer expense and regenerate, to be included：Second equipment detects channel layer
The channel layer expense of signal is revised as normal condition by malfunction after alarm.
Sectionalised protection includes：Non-intervention type monitors SNCP.
The another aspect of the embodiment of the present invention provides a kind of equipment for avoiding switching transmission in sectionalised protection, the equipment
Positioned at the point of interface of sectionalised protection, set channel layer to alert on the device and block point；The equipment includes：Unit, double hairs are received in choosing
Unit and channel layer alarm blocking unit；Unit is received in choosing and double bill members are located in cross matrix；Channel layer alerts blocking unit
Set on assist side card, circuit board is in the downstream of double bill members；Unit is received in choosing to be used to examine in the signal that upstream is transmitted
Measure after channel layer alarm, execution selects receipts to switch；Or, unit is received in choosing to be used to work as between the equipment and the first equipment of its upstream
Service aisle when breaking down, execution selects receipts to switch, while inserting channel layer alarm in the signal downstream transmitted；Double hairs
Unit is used to perform the signal alerted comprising channel layer double hair operations；Channel layer alarm blocking unit is used to detect channel layer
The layer expense regeneration of laggard row of channels is alerted, to the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, with
Block channel layer alarm downstream to transmit, the 3rd equipment is not performed and select receipts to switch.
When choosing receives unit and insert channel layer in the signal downstream transmitted and alert, specifically for by the letter downstream transmitted
Number channel layer expense be revised as malfunction.
Channel layer alert blocking unit carry out channel layer expense regeneration when, specifically for by the channel layer expense of signal by
Malfunction is revised as normal condition.
The another further aspect of the embodiment of the present invention provides a kind of system for avoiding switching transmission in sectionalised protection, including preceding
State and the equipment for switching transmission is avoided in sectionalised protection, and the first equipment positioned at the equipment upstream and positioned at the device downstream
The 3rd equipment；Protection is respectively configured between the equipment and the first equipment, and between the equipment and the 3rd equipment, equipment position
In the point of interface of sectionalised protection, set channel layer to alert on the device and block point.
Between the first equipment and the equipment, or/and, between the equipment and the 3rd equipment, system also includes：Light is transmitted
Net OTN equipment.
The present invention sets channel layer to alert at the point of interface of sectionalised protection and blocks point, and when detecting, channel layer alarm is laggard
Row of channels layer expense regeneration, to block channel layer alarm downstream to transmit, downstream protects group not perform to switch, so as to avoid one
Individual failure causes multi-stage protective execution to be switched, it is possible to reduce the drop-out time of business.Meanwhile, protection passage can be in any two
Used between device node, the limitation without neighbor device node；And, it is only necessary to matched somebody with somebody at the point of interface of sectionalised protection
Put, the quantity of configuration node can be reduced compared with TCM segmented modes；Also, channel layer alarm blocks point only need to be in a section
Set at point device, two ends matching problem is not related to, can effectively solve the problems, such as to configure intercommunication.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is that prior art avoids switching the principle schematic downstream transmitted in SNC I protections.
Fig. 2 avoids switching a principle schematic of transmission for the present invention in sectionalised protection.
Fig. 3 avoids switching the schematic flow sheet of method one embodiment of transmission for the present invention in sectionalised protection.
Fig. 4 avoids switching another principle schematic of transmission for the present invention in sectionalised protection.
Fig. 5 avoids switching the schematic flow sheet of another embodiment of the method for transmission for the present invention in sectionalised protection.
Fig. 6 avoids switching the structural representation of system one embodiment of transmission for the present invention in sectionalised protection.
Fig. 7 avoids switching the structural representation of another embodiment of the system of transmission for the present invention in sectionalised protection.
Fig. 8 avoids switching the structural representation of equipment one embodiment of transmission for the present invention in sectionalised protection.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The present invention proposes a kind of method for avoiding switching transmission in sectionalised protection, including：Positioned at sectionalised protection
Set channel layer to alert in the second equipment at point of interface and block point；Second equipment receives the signal of upstream transmission, and to upstream
The signal of transmission is detected；Second equipment detects channel layer in the signal that upstream is transmitted and alerts laggard row of channels layer expense
Regeneration, to the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, to block channel layer alarm downstream
Transmission, makes the 3rd equipment not perform and selects receipts to switch.
Fig. 2 avoids switching a principle schematic of transmission for the present invention in sectionalised protection.
As shown in Fig. 2 between the second equipment and the first equipment of trip disposed thereon, and the second equipment is with being located under it
Protection is respectively configured between 3rd equipment of trip, the second equipment is located at the point of interface of sectionalised protection, in the point of interface of sectionalised protection
Place sets channel layer to alert and blocks point, to block channel layer to alert（Such as ODU-AIS）Downstream transmit.Involved in the present invention
Sectionalised protection can be specifically non-intervention type monitoring SNCP（Abbreviation SNC N are protected）.Wherein, the first equipment possesses double
Function is sent out, the second equipment possesses choosing and receives function, double hair functions, channel layer alarm block function, and the 3rd equipment possesses choosing and receives function.
First equipment, the second equipment and the 3rd equipment can be OTN equipment.
It should be noted that can have other OTN equipment between the first device and the second device, naturally it is also possible to do not have
There are other OTN equipment；With this identical, between the second equipment and the 3rd equipment, there can be other OTN equipment, certainly
Can also be without others OTN equipment.
For the ease of the description present invention, shown in Fig. 2 and be used for representing at failure at five key points, 1, be used for table at 2
Show that the choosing of the point of interface of sectionalised protection is received at unit, be used for representing at double bills member of the point of interface of sectionalised protection at 3, used at 4
At channel layer alarm blocking unit to represent the point of interface of sectionalised protection, it is used for representing that channel layer alarm blocks point downstream at 5
Select at receiving unit.Choosing therein receives unit and double bill members in the cross matrix of the second equipment, and channel layer alarm is blocked
Unit can be arranged on the circuit board of the second equipment, and circuit board is in the downstream of double bill members.
The implementation process that the present invention avoids switching the method for transmission in sectionalised protection is described in detail with reference to Fig. 2.
Fig. 3 avoids switching the schematic flow sheet of method one embodiment of transmission for the present invention in sectionalised protection.At this
In embodiment, it is assumed that between the first device and the second device without others OTN equipment.
As shown in figure 3, the present embodiment avoids the method for switching transmission from may comprise steps of in sectionalised protection：
Step 301, event occurs for the service aisle that the second equipment is detected between the second equipment and the first equipment of its upstream
Hinder, present embodiment assumes that being broken down at 1 shown in Fig. 2, for example, disconnected fibre occurs at 1.
Step 302, when the service aisle between the second equipment and the first equipment of its upstream breaks down, the second equipment
Execution selects receipts to switch, after execution is switched, the signal that the second equipment can be sent from protection channel reception upstream equipment, while the
Two equipment insert channel layer alarm in the signal downstream transmitted.
Wherein, a kind of method of insertion channel layer alarm is in the signal：The channel layer of signal is represented to the expense of state
Malfunction is revised as, for example, malfunction can be represented with 111.
Unit, double bills member and channel layer alarm blocking unit, therefore, this step are received because the second equipment can be subdivided into choosing
The operation for switching and inserting channel layer alarm in rapid specifically can receive unit by the choosing in the second equipment and perform, i.e., in fig. 2
Performed at shown 2.
Step 303, the second equipment performs double hairs to the signal alerted comprising channel layer and operated, i.e. the second equipment is downstream
Service aisle and protection passage send the signal alerted comprising channel layer simultaneously.
Unit, double bills member and channel layer alarm blocking unit, therefore, this step are received because the second equipment can be subdivided into choosing
Double hairs operation in rapid specifically can be by double bills member execution in the second equipment, i.e. execution at shown 3 in fig. 2.
Step 304, the second equipment detects channel layer and alerts laggard row of channels layer expense regeneration, is set to the 3rd downstream
Standby Transfer pipe layer expense is the signal of normal condition, to block channel layer alarm downstream to transmit, the 3rd equipment is not performed
Receipts are selected to switch.
Wherein, a kind of method of channel layer expense regeneration is：The channel layer expense of signal is revised as just by malfunction
Normal state, for example, normal condition can be represented with 001.
Unit, double bills member and channel layer alarm blocking unit, therefore, this step are received because the second equipment can be subdivided into choosing
Regenerative operation in rapid can specifically be performed by the alarm blocking unit of the channel layer in the second equipment, i.e., in fig. 2 at shown 4
Perform.
Because channel layer alarm is blocked at the 4 of the second equipment, downstream would not receive channel layer alarm, the of downstream
Three equipment（I.e. shown in Fig. 25 at）It would not switch again, so as to avoid switching transport phenomenon.It is shown in Figure 2, just
Under normal state, the transmitting path of signal is the equipment of service aisle-the second between the first equipment and the second equipment and the 3rd equipment
Between service aisle；Before the present invention is not used, when failure shown in figure occurs, the transmitting path of signal has necessarily generally
Rate is the protection passage between the protection equipment of passage-the second and the 3rd equipment between the first equipment and the second equipment, that is, is occurred
The transmission switched；After using the present invention, when failure shown in figure occurs, the transmitting path of signal is the first equipment and the
The service aisle between the protection equipment of passage-the second and the 3rd equipment between two equipment, it is seen that present invention, avoiding what is switched
Transmission.
The present invention is when configuring sectionalised protection, the blocking that can just set channel layer to alert at the point of interface of sectionalised protection
Point, therefore do not interfere with application of the channel layer alarm in maintenance management.Channel layer blocks configuration protection group before point, works as upstream
When there is channel layer alarm, the protection group of upstream is that can perform to switch, and switching channel alarm after execution will disappear, therefore resistance
Breakpoint simply occurs to perform the moment switched in failure and upstream for the blocking that channel layer is alerted；Hinder in normal state
It is not in channel layer alarm before breakpoint；The channel layer that trouble point need to only be closed on by upstream in fault location alerts to sentence
Disconnected, the channel layer in downstream is alerted without actual application value, can not be considered.
Fig. 4 avoids switching another principle schematic of transmission for the present invention in sectionalised protection.Fig. 4 compared with Fig. 2,
Also there is others OTN equipment between first equipment and the second equipment, the 4th equipment be set to here, other guide is identical with Fig. 2,
Here repeat no more.It should be noted that the 4th equipment herein is used for representing other between the first equipment and the second equipment
OTN equipment, the quantity of other OTN equipment can be one or more.
The implementation process that the present invention avoids switching the method for transmission in sectionalised protection is described in detail with reference to Fig. 4.
Fig. 5 avoids switching the schematic flow sheet of another embodiment of the method for transmission for the present invention in sectionalised protection.
In the present embodiment, it is assumed that between the first device and the second device in the presence of other OTN equipment（Here it is set to the 4th equipment）.
As shown in figure 5, the present embodiment avoids the method for switching transmission from may comprise steps of in sectionalised protection：
Step 501, event occurs for the service aisle that the 4th equipment is detected between the 4th equipment and the first equipment of its upstream
Hinder, present embodiment assumes that being broken down at 1 shown in Fig. 4, for example, disconnected fibre occurs at 1.
Step 502, when the service aisle between the 4th equipment and the first equipment of its upstream breaks down, the 4th equipment
Channel layer alarm is inserted in the signal downstream transmitted.Wherein, the method for the 4th equipment insertion channel layer alarm may be referred to
The associated description of foregoing second equipment, is repeated no more here.
Step 503, the second equipment positioned at the 4th device downstream detects channel layer alarm in the signal that upstream is transmitted
Afterwards, performing selects receipts to switch.This step specifically can receive unit by the choosing of the second equipment and perform, i.e., hold in Fig. 4 at shown 2
OK.
Step 504, the second equipment performs double hairs to the signal alerted comprising channel layer and operated, i.e. the second equipment is downstream
Service aisle and protection passage send the signal alerted comprising channel layer simultaneously.This step specifically can by the second equipment double hairs
Unit is performed, i.e. execution at shown 3 in Fig. 4.
Step 505, the second equipment detects channel layer and alerts laggard row of channels layer expense regeneration, is set to the 3rd downstream
Standby Transfer pipe layer expense is the signal of normal condition, to block channel layer alarm downstream to transmit, the 3rd equipment is not performed
Receipts are selected to switch.This step can specifically be performed by the channel layer alarm blocking unit of the second equipment, i.e., in Fig. 4 at shown 4
Perform.
Follow-up process is identical with the flow of embodiment illustrated in fig. 3, because channel layer alarm is hindered at the 4 of the second equipment
Disconnected, downstream would not receive channel layer alarm, the 3rd equipment in downstream（I.e. shown in Fig. 45 at）It would not switch again,
So as to avoid switching transport phenomenon.
Fig. 6 avoids switching the structural representation of system one embodiment of transmission for the present invention in sectionalised protection.
As shown in fig. 6, the present embodiment avoids the system for switching transmission from including in sectionalised protection：Kept away in sectionalised protection
Exempt from the equipment for switching transmission（That is, the second foregoing equipment）602, and the first equipment 601 positioned at the upstream of the second equipment 602
With the 3rd equipment 603 positioned at the downstream of the second equipment 602；Between second equipment 602 and the first equipment 601, and second sets
Standby 602 and the 3rd are respectively configured protection between equipment 603, the second equipment 602 positioned at sectionalised protection point of interface, on the device
Set channel layer to alert and block point.Wherein, sectionalised protection includes：Non-intervention type monitors SNCP.
Between the second equipment 602 and the first equipment 601, or/and, between the second equipment 602 and the 3rd equipment 603 also
Others OTN equipment can be included, naturally it is also possible to without others OTN equipment.Second equipment is shown compared with Fig. 6, in Fig. 7
602 and first equipment 601 include the situation of the 4th equipment 604.
First equipment possesses double hair functions, and the second equipment possesses choosing and receives function, double hair functions, channel layer alarm blocking work(
Can, the 3rd equipment possesses choosing and receives function.First equipment, the second equipment and the 3rd equipment, the 4th equipment can be OTN equipment.
For the second equipment 602 involved in Fig. 6 and Fig. 7, Fig. 8 shows the structural representation of the second equipment.This implementation
The equipment for avoiding switching transmission in sectionalised protection of example（Second equipment）602 are located at the point of interface of sectionalised protection, set thereon
Channel layer alarm blocks point.
As shown in figure 8, the second equipment 602 includes：Unit 801, double bills member 802 and channel layer alarm blocking unit are received in choosing
803；Unit 801 is received in choosing and double bill members 802 are located in cross matrix；Channel layer alarm blocking unit 803 sets assist side
On card, circuit board is in the downstream of double bill members 802.
According to whether there is other OTN equipment between the first equipment and the second equipment, unit 801 is received in choosing to be used to pass in upstream
Detected in the signal sent after channel layer alarm, execution selects receipts to switch（Set between first equipment and the second equipment in the presence of other OTN
It is standby）；Or, unit 801 is received in choosing to be used for when the service aisle between the equipment and the first equipment of its upstream breaks down, and is held
Row selects receipts to switch, while inserting channel layer alarm in the signal downstream transmitted（Do not have between first equipment and the second equipment
Other OTN equipment）.
Double bill members 802 are used to operate the double hairs of signal execution alerted comprising channel layer.
Channel layer alarm blocking unit 803, which is used to detecting channel layer, alerts the layer expense regeneration of laggard row of channels, to it under
3rd equipment Transfer pipe layer expense of trip is the signal of normal condition, to block channel layer alarm downstream to transmit, makes the 3rd
Equipment, which is not performed, selects receipts to switch.
When choosing receipts unit 801 inserts channel layer alarm in the signal downstream transmitted, specifically for will downstream transmit
The channel layer expense of signal be revised as malfunction.
Channel layer alerts blocking unit 803 when carrying out the regeneration of channel layer expense, specifically for the channel layer of signal is opened
Pin is revised as normal condition by malfunction.
The method, apparatus and system for avoiding switching transmission in sectionalised protection that the present invention is provided, it is adaptable to non-intervention type
Monitor SNCP（Abbreviation SNC N are protected）, point is blocked by setting channel layer to alert at the point of interface of sectionalised protection,
Channel layer expense regeneration is carried out when detecting channel layer alarm, to block channel layer alarm downstream to transmit, the protection in downstream
Group, which is not performed, switches, and is switched so as to avoid a failure from causing multi-stage protective to perform, it is possible to reduce the drop-out time of business.Together
When, protection passage can be used between any two device node, the limitation without neighbor device node；And, it is only necessary to
Configured at the point of interface of sectionalised protection, the quantity of configuration node can be reduced compared with TCM segmented modes；Also, it is logical
Channel layer alarm blocks point only to be set at a node device, and two ends matching problem is not related to, can effectively solve configuration mutual
Correspond topic.
One of ordinary skill in the art will appreciate that realize above-described embodiment all or part of step need to by hardware come
Realize, hardware configuration operation need to instruct the hardware of correlation to complete by program, described program should be included in the management of equipment
In software.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (12)
1. a kind of method for avoiding switching transmission in sectionalised protection, including：
Set channel layer to alert in the second equipment at the point of interface positioned at sectionalised protection and block point, wherein, the second equipment bag
Include choosing and receive unit and channel layer alarm blocking unit；
If there is the 4th equipment between the second equipment and the first equipment of its upstream, when the 4th equipment is set with the first of its upstream
When service aisle between standby breaks down, the 4th equipment inserts channel layer alarm in the signal downstream transmitted；
Choosing is received unit and detected in the signal that upstream is transmitted after channel layer alarm, and execution selects receipts to switch；
Channel layer alarm blocking unit receives the signal of upstream transmission, and the signal transmitted to upstream is detected；
Channel layer alarm blocking unit detects channel layer in the signal that upstream is transmitted and alerts laggard row of channels layer expense regeneration,
To the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, to block channel layer alarm downstream to transmit,
The 3rd equipment is not performed selects receipts to switch.
2. a kind of method for avoiding switching transmission in sectionalised protection, including：
Set channel layer to alert in the second equipment at the point of interface positioned at sectionalised protection and block point, wherein, the second equipment bag
Include choosing and receive unit and channel layer alarm blocking unit；
If there is no other optical transfer networks OTN equipment between the second equipment and the first equipment of its upstream, when the second equipment and its
When service aisle between first equipment of upstream breaks down, choosing receives unit execution and selects receipts to switch, while being transmitted downstream
Signal in insertion channel layer alarm；
Channel layer alarm blocking unit receives the signal of upstream transmission, and the signal transmitted to upstream is detected；
Channel layer alarm blocking unit detects channel layer in the signal that upstream is transmitted and alerts laggard row of channels layer expense regeneration,
To the signal that the 3rd equipment Transfer pipe layer expense downstream is normal condition, to block channel layer alarm downstream to transmit,
The 3rd equipment is not performed selects receipts to switch.
3. method according to claim 1 or 2, it is characterised in that the second equipment also includes double bill members, double bill members are used
Double hairs are performed in the signal to alerting comprising channel layer to operate.
4. method according to claim 3, unit is received in choosing and double bill members are located in cross matrix；Channel layer alarm is blocked
Unit is set on the circuit board in the downstream of double bill members.
5. method according to claim 1 or 2, it is characterised in that the channel layer alarm blocking unit is transmitted in upstream
Signal in detect channel layer and alert the layer expense regeneration of laggard row of channels and include：
The channel layer expense of signal is revised as just by channel layer alarm blocking unit after detecting channel layer alarm by malfunction
Normal state.
6. method according to claim 1 or 2, it is characterised in that the sectionalised protection includes：Non-intervention type monitors subnet
Connection protection.
7. a kind of equipment for avoiding switching transmission in sectionalised protection, the equipment is located at the point of interface of sectionalised protection, in the equipment
Upper setting channel layer, which is alerted, blocks point；The equipment includes：Unit, double bills member and channel layer alarm blocking unit are received in choosing；Choosing is received
Unit and double bill members are located in cross matrix；Channel layer alarm blocking unit is set on assist side card, and circuit board is in
The downstream of double bill members；
Unit is received in choosing to be used to detect in the signal that upstream is transmitted after channel layer alarm, and execution selects receipts to switch；Or, choosing is received single
Member is used for when the service aisle between the equipment and the first equipment of its upstream breaks down, and execution selects receipts to switch, while
Channel layer alarm is inserted in the signal downstream transmitted；
Double bill members are used to operate the double hairs of signal execution alerted comprising channel layer；
Channel layer alarm blocking unit is used to detect the laggard row of channels layer expense regeneration of channel layer alarm, to the 3rd downstream
Equipment Transfer pipe layer expense is the signal of normal condition, to block channel layer alarm downstream to transmit, the 3rd equipment is not held
Row selects receipts to switch.
8. equipment according to claim 7, it is characterised in that choosing receives unit and inserts passage in the signal downstream transmitted
During layer alarm, specifically for the channel layer expense of the signal downstream transmitted is revised as into malfunction.
9. equipment according to claim 7, it is characterised in that channel layer alerts blocking unit and carrying out channel layer expense again
When raw, specifically for the channel layer expense of signal is revised as into normal condition by malfunction.
10. equipment according to claim 7, it is characterised in that the sectionalised protection includes：Non-intervention type monitoring subnet connects
Connect protection.
11. a kind of system for avoiding switching transmission in sectionalised protection, including setting as described in claim any one of 7-10
It is standby, and the first equipment positioned at the equipment upstream and the 3rd equipment positioned at the device downstream；The equipment and the first equipment it
Between, and between the equipment and the 3rd equipment protection being respectively configured, the equipment is located at the point of interface of sectionalised protection, on the device
Set channel layer to alert and block point.
12. system according to claim 11, it is characterised in that between the first equipment and the equipment, or/and, at this
Between equipment and the 3rd equipment, the system also includes：Optical transfer network OTN equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170444.5A CN104144121B (en) | 2013-05-10 | 2013-05-10 | Avoid switching the method, apparatus and system of transmission in sectionalised protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170444.5A CN104144121B (en) | 2013-05-10 | 2013-05-10 | Avoid switching the method, apparatus and system of transmission in sectionalised protection |
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| CN101145951A (en) * | 2007-06-21 | 2008-03-19 | 中兴通讯股份有限公司 | Implementation method for communication network 1+1 protective cascading networking |
| CN101494473A (en) * | 2009-03-04 | 2009-07-29 | 北京邮电大学 | Protection method for WDM optical network loop based on resource and taking regard of protection duration control |
| CN101997754A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Switching method and system in section protection |
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| CN101145951A (en) * | 2007-06-21 | 2008-03-19 | 中兴通讯股份有限公司 | Implementation method for communication network 1+1 protective cascading networking |
| CN101494473A (en) * | 2009-03-04 | 2009-07-29 | 北京邮电大学 | Protection method for WDM optical network loop based on resource and taking regard of protection duration control |
| CN101997754A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Switching method and system in section protection |
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| PBB-TE 分段保护的关键技术;吴少勇等;《中兴通讯技术》;20110630;第59-61页 * |
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