CN101145951B - Implementation method for communication network 1+1 protective cascading networking - Google Patents
Implementation method for communication network 1+1 protective cascading networking Download PDFInfo
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Abstract
The invention provides an implementation method of '1+1' protection cascaded network of communication network, wherein a task transmitting/receiving device of each protected segment in the communication network is set to treat different types of alarming, including external signal alarming of the protection segment, alarming that doesn't need to start the protection within the protection segment, as well as internal signal alarming in the protection segment. According to the invention, the complexity of system processing is simplified, and, at the same time, the stability of system protection switch is significantly improved.
Description
Technical field
The present invention relates to the communication network 1+1 protective cascading networking field; particularly; relate to and adopt wavelength division multiplexing (Wavelength Division Multiplexing; abbreviate WDM as) implementation method of 1+1 protection cascade network in the Optical Transmission Network OTN of technology, the Research on Interactive Problem of upstream and downstream protection section that it can effectively solve a plurality of 1+1 protection cascade networks when using.
Background technology
In traditional optical transport network was used, network configuration mainly was the network application based on chain, ring topology, and in order to guarantee the survivability of network, the 1+1 protection mode has obtained extensive employing with characteristics such as its realization are easy.
The 1+1 protection mode realizes that principle can be described as: at transmitting terminal; carrying signal is copied as two parts; the operating path of advance planning and protection path send in the network respectively; at receiving terminal; select excellent receipts to handle according to the quality of signals that is received, and do not need the protocol processes process between the network node.The concrete processing procedure of optical-fiber network 1+1 protected as shown in Figure 1 and Figure 2.
Fig. 1 represents the situation of optical transport network operate as normal: the two-way services between client device A and the client device Z connect by optical transmission device; be sent to the business (the Business Processing process that is sent to customer end A for client Z is similar) of client Z for customer end A; after at first transmitting veneer reception processing through the light of optical transmission device; is two parts through protective device 11 with signal replication; transmit along service aisle and protection passage respectively; receiving terminal at optical transport network; entering protective device 12 respectively receives; protective device 12 preferably carries out the selectivity reception from the signal of service aisle, sends to client device Z through optical convering unit 12 then and receives.
Fig. 2 represents break down situation after switching of optical transport network: the two-way services between client device A and the client device Z connect by optical transmission device; be sent to the business (the Business Processing process that is sent to customer end A for client Z is similar) of client Z for customer end A; after the service aisle of optical transport network breaks down; service bearer equipment 11 detects the service aisle fault and transmits backward; when the service aisle fault is delivered to the afterbody service bearer equipment W1n of optical transport network step by step; service bearer equipment W1n turn-offs (automatically shutting down corresponding signal Output optical power when detecting the input signal fault) setting according to prior auto light power and closes output laser; make receiving terminal protective device 12 subsequently detect the unglazed triggering switching operation of service aisle; selective reception comes the signal of self-shield passage; and export to optical convering unit 12, send to client device Z through optical convering unit 12 then and receive.
At present; extensive use along with optical transport network; network development presents the complicated network structureization, the diversified development trend of transport service; the survivability that rolls up network of network carrying business has proposed more and more higher requirement; simultaneously, the complicated problem of also having brought new needs solution of network topology applied environment for the realization of traditional protection switchover mode.
For the 1+1 protection of extensive use at present,, thereby made each relatively independent in the past subnet present and interconnect and become the networking trend of an overall network because the transmission network construction scale of operator constantly enlarges; Because there is relevance in the service signal between the different 1+1 protection sections of upstream and downstream, causes producing the situation that the cascade effect between the 1+1 protection section that has existed in each subnet is used, and also just certainly leads to the problem of associated treatment between the upstream and downstream 1+1 protection section.Situation as shown in Figure 3 by two 1+1 protection section cascade networks, be sent to the business (the Business Processing process that is sent to customer end A for client Z is similar) of client Z for customer end A, when the service aisle of upstream protection section 1 breaks down, the protective device 12 of protection section 1 carries out switching operation according to the front principle of switching shown in Figure 2, but carry out in the process of switching operation in protection section 1, the optical convering unit 21 of protection section 2 also can detect the input signal fault and transmit downwards, cause the service aisle and the protection passage of the section of protection 2 all to detect signal fault, and make this protection section afterbody optical transmission device W2n, Automatic Power Shutdown takes place P2n handles, and then switching operation takes place trigger protection device 22; But after protection section 1 is finished protection and is switched; the service aisle of protection section 2 and protection channel signal are got back to again normally, automated power again afterbody optical transmission device W2n, the P2n of trigger protection section 2 inside is taken place open and handle and the switching to reply and operate of protective device 22.From network on the whole, the switching operation of protection section 2 obviously there is no need, and can further postpone the overall optical protect networks on the contrary and switch efficient.
At present, in communication network, the synergistic mechanism of situation about using for many protection section cascade effects of different sub-network interconnection, the common processing method of industry is: at upper level protection section certain delay (hold off) treatment mechanism of switching is set at next stage protection intersegmental part, promptly, not trigger protection switching action immediately after in current sub network protection section, detecting the signal alarm, but at first start a delay process, in the time range that postpones, do not carry out any protection action; If original alarm still exists then begins to start and carries out the protection switching operation of current sub network in protecting section after finishing time of delay.
Situation as shown in Figure 3 by two 1+1 protection section cascade networks; successively the trigger mechanism of switching of each protection section is done hold off delay setting from the whole network angle according to the flow direction of signal in advance; be sent to the business (the service protection setting up procedure that is sent to customer end A for client Z is similar) of client Z for customer end A; be set to t1 (owing to belonging to first protection section t1=0) time of delay of the afterbody service bearer equipment of protection section 1; the alarm delay time of the afterbody service bearer equipment of the protection section 2 in its downstream is set to t2 (the t value should slightly be longer than the protection switch time length of protection section 1); if follow-up also level is associated with more protection section i, then continue alarm delay time ti (the ti value should slightly be longer than the protection switch time length of its last protection section) to be set at its afterbody service bearer equipment.Be sent to the business (the service protection setting up procedure that is sent to customer end A for client Z is similar) of client Z for customer end A; when the service aisle of upstream protection section 1 breaks down; the protective device 12 of protection section 1 carries out switching operation according to the front principle of switching shown in Figure 2; but the optical convering unit 21 of protection section 2 also can detect the input signal fault and transmit downwards in the process of protection section 1 execution switching operation; the service aisle of protection section 2 and protection passage all detect the alarm delay that starts this protection section behind the signal fault immediately; protection section 1 is switched by protection signal is replied within alarm delay time; after protecting the section alarm delay time to finish, reexamining alarm status, confirming then to draw after fault has disappeared this protection Duan Buxu startup protection and switch.
Above-mentioned employing mainly has the following disadvantages by the associated treatment mode that alarm postpones the 1+1 protection cascade network of mechanism:
(1) because each 1+1 protection section after the cascade need be provided with alarm delay time; the situation that breaks down for current protection intersegmental part like this; protection can start after switching and also needing to wait for alarm delay time; reduce protection and switched efficient; and the protection Duan Yue of 1+1 cascade is many, and the delay that is in protection switch time under the protection intersegmental part failure situations in downstream will be big more.
(2) when causing inner generation protection, upstream protection intersegmental part fault switches; because downstream protection section also detects the fault warning that passes under the stream signal; though protection section relative its upstream protection section in downstream has started corresponding alarm and has postponed mechanism; but reason owing to aspects such as network stabilizations; the signal that can not guarantee upstream protection section was fully finished the protection of local terminal and is switched before the timing of downstream protection section alarm delay time finishes, so also the problem that just can't avoid the downstream to repeat to switch fully.
(3) because alarm postpones mechanism need be provided with respectively at the order of the protection section of upstream and downstream, and the time span value that is provided with is relevant with the overall performance of system, so from system maintenance angle complexity comparatively.
Therefore, as a whole, currently used alarming mechanism exists that protection switches that efficient is not high, protection is switched the big and system of delay and realized and safeguard comparatively problem such as complexity.
Summary of the invention
Consider the problems referred to above and propose the present invention, for this reason, the present invention aims to provide a kind of new communication network 1+1 protective cascading networking implementation method, and the complexity that it can simplified system be handled can improve the stability that system protection is switched simultaneously to a great extent.
According to the embodiment of the invention; a kind of implementation method of communication network 1+1 protective cascading networking is provided; wherein; service transmitting/receiving device to each protection section in the communication network is provided with; make service transmitting/receiving device carry out different disposal to dissimilar alarms; wherein, alarm comprises: the alarm of protection section external signal, protection intersegmental part need not start alarm, the alarm of protection intersegmental part signal of protection.
Above-mentioned service transmitting/receiving device comprise following one of at least: client service transmitting/receiving device, junction traffic R-T unit, terminal traffic R-T unit.
Correspondingly, above-mentioned setting operation comprise following one of at least: the client service transmitting/receiving device is set to: the finalization process mode is taked in alarm for protection section external signal, is translated into the alarm that the protection intersegmental part need not start protection; The finalization process mode is taked in alarm for protection intersegmental part signal, is translated into the alarm of protection section external signal; The junction traffic R-T unit is set to: for the alarm of protection intersegmental part signal, take the transparent transmission mode, or be translated into other protection intersegmental part signal alarms; For protecting intersegmental part need not start the alarm of protection, be translated into the alarm of protection intersegmental part signal; The terminal traffic R-T unit is set to: for the alarm of protection intersegmental part signal, carry out automatic light path protection turn-off function trigger protection and switch, for protecting intersegmental part need not start the alarm of protection, do not carry out automatic light path protection turn-off function.
In addition, the client service transmitting/receiving device is set to not have automatic light path protection turn-off function; The junction traffic R-T unit is set to not have automatic light path protection turn-off function; The terminal traffic R-T unit is set to have automatic light path protection turn-off function.In addition, the attribute of client service transmitting/receiving device is set to " client "; The attribute of junction traffic R-T unit is set to " circuit switching "; The attribute of terminal traffic R-T unit is set to " line terminal ".
Like this, when the outside network of protection section breaks down: the client service transmitting/receiving device is converted into the alarm that the protection intersegmental part need not start protection with the alarm of the section of protection external signal; Alarm after will handling by service aisle and the protection junction traffic R-T unit of passage and terminal traffic R-T unit respectively is transparent to opposite end client service transmitting/receiving device; The alarm that opposite end client service transmitting/receiving device will protect intersegmental part need not start protection is converted into the alarm of protection section external signal, and wherein, the terminal traffic R-T unit does not start automatic light path protection turn-off function.
When the source node in the protection section and the network between intermediate node broke down: the junction traffic R-T unit was handled detected protection intersegmental part signal alarm carrying out transparent transmission, or is translated into other protection intersegmental part signals alarms; Perhaps, the junction traffic R-T unit is converted into the alarm of protection intersegmental part signal with the alarm that detected protection intersegmental part need not start protection; Alarm after follow-up junction traffic R-T unit on the passage will be handled by service aisle or protection is transparent to the terminal traffic R-T unit; The terminal traffic R-T unit is carried out automatic light path protection turn-off function; The changeover apparatus of destination node detects service aisle or the protection passage is unglazed, carries out the corresponding protection switching operation.
When the network between the intermediary service R-T unit of the intermediate node in protecting section and the terminal traffic R-T unit of destination node broke down: the terminal traffic R-T unit was protected turn-off function according to the automatic light path of protection intersegmental part signal alarm startup; The changeover apparatus of destination node detects that service aisle/the protection passage is unglazed, carries out the corresponding protection switching operation.
When the terminal traffic R-T unit of the destination node in the protection section and the network between protective device broke down: protective device detected that service aisle/protection channel input signal is unglazed, execution corresponding protection switching operation.
When the protective device of the destination node in protecting section and the network between the client R-T unit of opposite end broke down: opposite end client R-T unit detection failure was converted into the alarm of protection section external signal, and it is delivered to the customer equipment in downstream or protects section.
By such scheme of the present invention, than correlation technique, the complexity of can simplified system handling also can improve the stability that system protection is switched simultaneously largely.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram (nothing is switched situation) according to single protection section 1+1 protection networking of correlation technique;
Fig. 2 is the schematic diagram (switching situation) according to single protection section 1+1 protection networking of correlation technique;
Fig. 3 is the schematic diagram of switching according to many 1+1 protections section cascade network of correlation technique;
Fig. 4 is the schematic network structure according to the protection section of the embodiment of the invention; And
Fig. 5 is the schematic network structure according to the carrying OTN protection section of the embodiment of the invention.
Embodiment
Research on Interactive Problem when using between the upstream and downstream protection section at existing WDM equipment network 1+1 protection cascade network; according to the embodiment of the invention; a kind of implementation method of the 1+1 protection cascade network of communicating by letter is provided; in the method; alertly determine whether to start interior protection of current protection section and switch based on conveying under distinguishing protection section internal fault alarm and the upstream; finally be implemented in the whole network, only protection takes place and switches in the residing protection of fault section, and other protection section not execute protection switch.
Describe the embodiment of the invention in detail hereinafter with reference to accompanying drawing, wherein, provide following examples with provide to of the present invention comprehensively and thorough, rather than the present invention carried out any restriction.
Fig. 4 shows according to the structure of each 1+1 protection section of the embodiment of the invention for convenience of description; only the 1+1 protected that sends to Z from A with service signal is embodied as example and describes, and the rightabout service signal is similar from the 1+1 protected system configuration that Z sends to A.Wherein, letter w, P represent work (work), protection (protect) respectively in the way.
In Fig. 4, from the input signal of customer equipment or from the incoming traffic signal of the adjacent protection section in upstream (below be referred to as a protection section external input signal) at first the client service transmitting/receiving device through this protection section carry out the signal forwarding processing; Input to the protective device of source node A then, send to service aisle and protection passage respectively after service signal is copied into two parts through protective device.Service signal on the service aisle is a series of intermediate node of process before not arriving destination node Z, can dispose junction traffic R-T unit (whether disposing the junction traffic R-T unit can specifically determine according to the networking demand) at each intermediate node, the protective device Z that sends to node Z after the terminal traffic R-T unit W of service signal arrival destination node Z receives; On the other hand, service signal on the protection passage is a series of intermediate node of process before not arriving destination node Z, can dispose junction traffic R-T unit (whether disposing the junction traffic transceiver can specifically determine according to the networking demand) at each intermediate node, the protective device that sends to node Z after the terminal traffic R-T unit P of service signal arrival destination node Z receives; The protective device of node Z is realized selective reception according to the signal quality situation of service aisle of receiving simultaneously and protection passage, and output sends to the client service transmitting/receiving device then, afterwards, sends to the outside customer equipment of protection section or next protection section.
Based on content described above; in implementation method according to the communication network 1+1 protective cascading networking of the embodiment of the invention; service transmitting/receiving device to each protection section in the communication network (comprising: the client service transmitting/receiving device; the junction traffic R-T unit; the terminal traffic R-T unit) is provided with; make service transmitting/receiving device carry out different disposal to dissimilar alarms; wherein; alarm comprises: protection section external signal alarm (representing with Alm1); the protection intersegmental part need not start the alarm (representing with Alm2) of protection; protection intersegmental part signal alarm (represent with Alm3, also can be called the alarm that the protection intersegmental part need start protection).
Particularly, above-mentioned setting operation comprises:
The client service transmitting/receiving device is set to: the finalization process mode is taked in alarm for Alm1, is translated into Alm2; Take the finalization process mode for Alm3, be translated into the Alm1 alarm; The junction traffic R-T unit is set to: for Alm3, take the transparent transmission mode, or be translated into other Alm3; For Alm2, be translated into Alm3; The terminal traffic R-T unit is set to: for Alm3, carry out automatic light path protection shutoff (Auto Protection Shut Down abbreviates APSD as) function trigger protection and switch, for Alm2, do not carry out the APSD function.
In addition, the client service transmitting/receiving device is set to not have the APSD function; The junction traffic R-T unit is set to not have the APSD function; The terminal traffic R-T unit is set to have the APSD function.In addition, the attribute of client service transmitting/receiving device is set to " client "; The attribute of junction traffic R-T unit is set to " circuit switching "; The attribute of terminal traffic R-T unit is set to " line terminal ".
Like this, when protecting the outside network (for example, the network among Fig. 4 1.) of section when breaking down (Alm1): the client service transmitting/receiving device is converted into Alm2 with the Alm1 alarm; Alarm after will handling by service aisle and the protection junction traffic R-T unit of passage and terminal traffic R-T unit respectively is transparent to opposite end client service transmitting/receiving device; Opposite end client service transmitting/receiving device is converted into the Alm1 alarm with Alm2 and sends out this protection section; wherein; the terminal traffic R-T unit does not start the APSD function, so the changeover apparatus of destination node can not detect the unglazed youngster's execute protection of service aisle input signal and switches work.
Source node in protection section and the network between intermediate node (for example, the network among Fig. 4 2. or 4.) are when breaking down: the junction traffic R-T unit carries out transparent transmission to detected Alm3 to be handled, or is translated into other Alm3; Perhaps, the junction traffic R-T unit is converted into Alm3 with detected Alm2; Alarm after will handling by the follow-up junction traffic R-T unit on service aisle/protection passage respectively is transparent to the terminal traffic R-T unit; The terminal traffic R-T unit is carried out the APSD function; The changeover apparatus of destination node detects that service aisle/the protection passage is unglazed, carries out the corresponding protection switching operation.
Network between the intermediary service R-T unit of the intermediate node in protecting section and the terminal traffic R-T unit of destination node (for example, 3. or 5. network among Fig. 4) when breaking down: the terminal traffic R-T unit starts the APSD function according to Alm3, closes the signal output of respective channel; The changeover apparatus of destination node detects that service aisle/the protection passage is unglazed, carries out the corresponding protection switching operation.
The terminal traffic R-T unit of the destination node in the protection section and the network between protective device are (for example; 6. or 7. network among Fig. 4) when breaking down: protective device detects that service aisle/the protection channel input signal is unglazed, carries out the corresponding protection switching operation.
The protective device of the destination node in the protection section and the network between the client R-T unit of opposite end are (for example; network among Fig. 4 is 8.) when breaking down: opposite end client R-T unit detection failure; be converted into the Alm1 alarm, and it is delivered to the customer equipment or the protection section in downstream.
Below will above-mentioned processing of the present invention be described further combined with example.
Example
In this example, the signal of network client side carrying SDH (Synchronous DigitalHierarchy, SDH (Synchronous Digital Hierarchy)) service line trackside OTN (Optical TransportNetwork, optical transport network) encapsulated delivery.
In network under the application scenarios of the OTN service signal G.709 stipulated of carrying ITU-T, the alarm set of the support of system is divided into: a protection section external signal alarm set A lm1={SD, LOS, LOF}; The protection intersegmental part need not start the alarm set A lm2={ODU-AIS} of protection; The protection intersegmental part starts the alarm set A lm3={LOS of protection, OTU-AIS, and SM-BIP8 is out-of-limit, OTU-LOF, ODU-LCK, ODU-OCI}.
The setting that employing has been described that is provided with for client service transmitting/receiving device, junction traffic R-T unit, terminal traffic R-T unit.
Afterwards, (1) for the situation that rupture of line fault (LOS alarm) 1. takes place in the network, handle the alarm that is converted into ODU-AIS by the client service transmitting/receiving device, respectively through the junction traffic R-T unit on service aisle and the protection passage, the terminal traffic R-T unit is transparent to the client R-T unit, become the LOS alarm to send out this protection section through treatment conversion, because the terminal traffic R-T unit does not start the APSD function after detecting ODU-AIS alarm, so the changeover apparatus of Z point (destination node) can not detect the unglazed and execute protection switching operation of service aisle input signal;
(2) for the situation that rupture of line fault (LOS) 2. takes place in the network, detect this input alarm by the corresponding relay service transmitting/receiving device, be converted to OTU-AIS alarm output, be transparent to the terminal traffic R-T unit through the junction traffic R-T unit on the follow-up work passage respectively then, alarm starts the signal output that the APSD function is closed respective channel to the terminal traffic R-T unit according to the OTU-AIS that receives, and then the Z changeover apparatus of order detects the unglazed and execution corresponding protection switching operation of service aisle input signal;
(3) for the situation that rupture of line fault (LOS) 3. takes place in the network, directly being detected by the relevant terminal service transmitting/receiving device is the LOS alarm, the terminal traffic R-T unit starts the APSD function according to the LOS alarm of receiving, close the signal output of respective channel, and then the Z changeover apparatus of order detects the unglazed and execution corresponding protection switching operation of service aisle input signal;
(4) for the situation that rupture of line fault (LOS) 4. takes place in the network, detect this LOS alarm by the corresponding relay service transmitting/receiving device, be converted to OTU-AIS alarm output, be transparent to the terminal traffic R-T unit through the junction traffic R-T unit on the follow-up protection passage respectively then, the terminal traffic R-T unit starts the signal output that the APSD function is closed respective channel according to the OTU-AIS alarm of receiving, and then the Z changeover apparatus of ordering to detect the protection channel input signal unglazed, then changeover apparatus is carried out the action of returning service aisle;
(5) for the situation that 5. breaks down in the network, directly being detected by the relevant terminal service transmitting/receiving device is to belong to the Alm3 alarm, the terminal traffic R-T unit starts the APSD function according to the Alm3 alarm of receiving, close the signal output of respective channel, and then the Z changeover apparatus of ordering to detect the protection channel input signal unglazed, then changeover apparatus is carried out the action of returning service aisle;
(6) for the situation that rupture of line fault (LOS) 6. takes place in the network, directly the changeover apparatus of being ordered by Z detects service aisle is not had input signal, and then changeover apparatus is carried out the corresponding protection switching operation;
(7) for the situation that rupture of line fault (LOS) 7. takes place in the network, directly the changeover apparatus of being ordered by Z detects the protection passage does not have input signal, and then changeover apparatus is carried out the operation that is switched to service aisle accordingly;
(8) for the situation that rupture of line fault (LOS) 8. takes place in the network, directly detect and this protection of transparent transmission LOS alarm output section by client R-T unit Z, be delivered to customer equipment or next protection section in downstream.
If this protection section back also has the corresponding protection section, then repeat above-mentioned processing; If do not have other protection section, then finish.
By such scheme of the present invention; alertly determine whether to start interior protection of current protection section and switch based on conveying under distinguishing protection section internal fault alarm and the upstream; finally be implemented in the whole network; only the residing protection section of fault takes place to protect and switches; and other protection section not execute protection switch; thereby the complexity of can simplified system handling also can improve the stability that system protection is switched simultaneously largely.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the implementation method of a communication network 1+1 protective cascading networking, it is characterized in that, service transmitting/receiving device to each protection section in the communication network is provided with, make described service transmitting/receiving device carry out different disposal to dissimilar alarms, wherein, described alarm comprises: the alarm of protection section external signal, protection intersegmental part need not start alarm, the alarm of protection intersegmental part signal of protection; Described service transmitting/receiving device comprise following one of at least: client service transmitting/receiving device, junction traffic R-T unit, terminal traffic R-T unit; Described setting operation comprise following one of at least:
Described client service transmitting/receiving device is set to: the finalization process mode is taked in alarm for described protection section external signal, is translated into the alarm that described protection intersegmental part need not start protection; Take the finalization process mode for described protection intersegmental part signal alarm, be translated into the alarm of described protection section external signal;
Described junction traffic R-T unit is set to: for described protection intersegmental part signal alarm, take the transparent transmission mode, or be translated into other protection intersegmental part signal alarms; Need not start the alarm of protection for described protection intersegmental part, be translated into described protection intersegmental part signal alarm;
Described terminal traffic R-T unit is set to: for described protection intersegmental part signal alarm; carrying out automatic light path protection turn-off function trigger protection switches; need not start the alarm of protection for described protection intersegmental part, not carry out described automatic light path protection turn-off function.
2. the implementation method of communication network 1+1 protective cascading networking according to claim 1 is characterized in that, when the outside network of described protection section breaks down:
Described client service transmitting/receiving device is converted into the alarm that described protection intersegmental part need not start protection with the alarm of described protection section external signal;
Alarm after will handling by service aisle and the protection described junction traffic R-T unit of passage and described terminal traffic R-T unit respectively is transparent to opposite end client service transmitting/receiving device;
Described opposite end client service transmitting/receiving device is converted into the alarm of described protection section external signal with the alarm that described protection intersegmental part need not start protection;
Wherein, described terminal traffic R-T unit does not start described automatic light path protection turn-off function.
3. the implementation method of communication network 1+1 protective cascading networking according to claim 1 is characterized in that, when the source node in the described protection section and the network between intermediate node break down:
Described junction traffic R-T unit is handled detected described protection intersegmental part signal alarm carrying out transparent transmission, or is translated into other protection intersegmental part signal alarms; Perhaps, the alarm that detected described protection intersegmental part need not started protection of described junction traffic R-T unit is converted into described protection intersegmental part signal alarm;
Alarm after follow-up junction traffic R-T unit on the passage will be handled by service aisle or protection is transparent to described terminal traffic R-T unit;
Described terminal traffic R-T unit is carried out described automatic light path protection turn-off function;
The changeover apparatus of destination node detects service aisle or the protection passage is unglazed, carries out the corresponding protection switching operation.
4. require the implementation method of 1 described communication network 1+1 protective cascading networking according to claim; it is characterized in that, when the network between the described terminal traffic R-T unit of the described intermediary service R-T unit of the intermediate node in the described protection section and destination node breaks down:
Described terminal traffic R-T unit starts described automatic light path protection turn-off function according to described protection intersegmental part signal alarm;
The changeover apparatus of destination node detects that service aisle/the protection passage is unglazed, carries out the corresponding protection switching operation.
5. require the implementation method of 1 described communication network 1+1 protective cascading networking according to claim, it is characterized in that, when the described terminal traffic R-T unit of the destination node in the described protection section and the network between protective device break down:
Described protective device detects that service aisle/the protection channel input signal is unglazed, carries out the corresponding protection switching operation.
6. require the implementation method of 1 described communication network 1+1 protective cascading networking according to claim, it is characterized in that, when the protective device of the destination node in the described protection section and the network between the client R-T unit of opposite end break down:
Described opposite end client R-T unit detection failure is converted into the alarm of described protection section external signal, and it is delivered to the customer equipment or the protection section in downstream.
7. the implementation method of communication network 1+1 protective cascading networking according to claim 1 is characterized in that, comprise in the following processing one of at least:
Described client service transmitting/receiving device is set to not have automatic light path protection turn-off function;
Described junction traffic R-T unit is set to not have automatic light path protection turn-off function;
Described terminal traffic R-T unit is set to have automatic light path protection turn-off function.
8. the implementation method of communication network 1+1 protective cascading networking according to claim 1 is characterized in that, comprise in the following processing one of at least:
The attribute of described client service transmitting/receiving device is set to " client ";
The attribute of described junction traffic R-T unit is set to " circuit switching ";
The attribute of described terminal traffic R-T unit is set to " line terminal ".
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| CN101790110B (en) * | 2009-01-22 | 2012-12-19 | 中兴通讯股份有限公司 | Device and method for coordinating and recovering automatic protection switching operation |
| CN104144121B (en) * | 2013-05-10 | 2017-09-08 | 中国电信股份有限公司 | Avoid switching the method, apparatus and system of transmission in sectionalised protection |
| CN105915279B (en) * | 2016-05-18 | 2018-05-29 | 烽火通信科技股份有限公司 | A kind of method based on OTU alarm triggered pretection switch in WSON |
| CN106533543B (en) * | 2016-11-22 | 2023-11-10 | 中国南方电网有限责任公司 | Low-rate optical signal protection device and protection method |
| CN115987754B (en) * | 2018-06-08 | 2024-08-27 | 华为技术有限公司 | Network communication method and device |
| CN109361597B (en) * | 2018-12-14 | 2021-06-04 | 武汉光迅信息技术有限公司 | Multi-route selection method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505284A (en) * | 2002-12-02 | 2004-06-16 | 深圳市中兴通讯股份有限公司 | A distributed fault-locating method in a total optical network |
-
2007
- 2007-06-21 CN CN2007101094383A patent/CN101145951B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505284A (en) * | 2002-12-02 | 2004-06-16 | 深圳市中兴通讯股份有限公司 | A distributed fault-locating method in a total optical network |
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