CN101998178A - Shared protection control method and device of optical data unit (ODU) loop - Google Patents
Shared protection control method and device of optical data unit (ODU) loop Download PDFInfo
- Publication number
- CN101998178A CN101998178A CN 200910090456 CN200910090456A CN101998178A CN 101998178 A CN101998178 A CN 101998178A CN 200910090456 CN200910090456 CN 200910090456 CN 200910090456 A CN200910090456 A CN 200910090456A CN 101998178 A CN101998178 A CN 101998178A
- Authority
- CN
- China
- Prior art keywords
- loop
- protection
- tunnel
- odu
- alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
- H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a shared protection control method of an optical data unit (ODU) loop, which comprises the following steps: arranging two virtual channel loops in the ODU loop, wherein one virtual channel loop is used for bearing service transmission, and the other virtual channel loop is used as a virtual protection channel loop; and when an alarm or a fault is detected in the virtual channel loop for bearing services, carrying out virtual channel loop protection control according to the detection result. The invention simultaneously discloses a shared protection control device of the ODU loop, which comprises a setting unit, a detecting unit and a protection control unit, wherein the setting unit is used for setting two virtual channel loops in the ODU loop, one virtual channel loop is used for bearing the service transmission, and the other virtual channel loop is used as the virtual protection channel loop; the detecting unit is used for detecting whether the alarm or fault occurs in the virtual channel loop for bearing the services; and the protection control unit is used for carrying out virtual channel loop protection control according to the detection result. In the invention, the protection granularity of the ODU shared loop is refined and the protection modes are enriched.
Description
Technical field
The present invention relates to optical transfer network (OTN; Optical Transport Network) the loop share protect control technology in; relate in particular among a kind of OTN based on light data cell (ODU, Optical Data Unit) loop share protect control method and device.
Background technology
Along with Network is increasing to the demand of bandwidth, operator and system manufacturer improve the problem of professional tranmission techniques in consideration constantly always.Also (a kind of circuit technology is a kind of rate representation in pulse-code modulation (PCM, the Pulse Code Modulation) technology, and E1 is an European standard, and China also uses this standard, and supporting rate is 2048kps based on T1/E1 from initial in the evolution of digital transmission network; T1 is the North America standard, supporting rate is 1544kps) first generation digital transmission network, experienced second generation digital transmission network based on SONET/SDH, developed at present third generation digital transmission network based on OTN.Transmit net as the next generation, the network loop border that OTN faced is complicated more, and the survivability of its network is one of an OTN very important problem.
On its function, OTN can transmit with full light form in subnet, and adopts light-electrical-optical conversion at the boundary of subnet.It has comprised the integral framework structure of photosphere and electricity layer, and each layer network all has corresponding management and monitoring mechanism, and photosphere and electricity layer all have network survivability mechanism.In the protection of photosphere loop net; industry generally adopts the principle of the multiplex section shared loop protecting in the G841 suggestion " type and the characteristic of SDH network protection architecture " of the ITU-T of International Telecommunications Union, and open day is that on May 5th, 2004, publication number are that the CN1494250A denomination of invention realizes the method and apparatus of channels share protection for the optical switch of introducing in " all-optical network two-fibre two-way loop channels share protective device " Chinese patent that utilizes.For the protection of electricity layer, industry generally adopts the processing suggestion of middle ODUk1+1 that introduces of G873.1 number " the OTN linear protection " of ITU-T and ODUk1:N.But so far, adopt the protection turning protocol of ODUk share protect mode and standard not to formulate as yet about the electricity layer.
In photosphere channels share protected mode, because the restriction of consistent wavelength---in switching, can not change the wavelength of professional optical channel.Fig. 1 is the schematic diagram of carrying wavelength of optical signal in optical layer protective passage and the service aisle; as shown in Figure 1; in service aisle, dispose a certain wavelength business and be the passage of λ 1; for this service aisle configuration share protect passage the time; the optical channel of same wavelength X 1 must be reserved on the reverse protection passage, light signal switching on the service aisle could be realized to the share protect passage.In case the λ 1 of a certain section of striding on the channel link loop (link between the adjacent node) is occupied, just can't realize channels share protection to this wavelength correspondence.The schematic diagram that Fig. 2 disposes in the ODUk link for ODUk channels share Loop Protection, as shown in Figure 2, the light data cell ODUk sublayer in the middle of optical channel (OCH, the Optical Channel) layer, itself possesses Wavelength-independent.As long as in the backward channel loop, there is an available ODUk passage of free time, just can set up a loop share protect to the ODUk business of crossing over the wavelength restriction.
The standard that does not occur electricity layer channels share protected mode at present as yet; how in the photosphere passage, to realize share protect; solution is numerous; publication number is the technical scheme that proposes in the patent of invention of CN1494250A as described above; if the wavelength at light signal is provided with corresponding Loop Protection passage; restriction to the loop path protection will be quite big, very inconvenience in the use.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of smooth data cell loop share protect control method and device, can realize the control of loop share protect in the ODU loop well.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of smooth data cell loop share protect control method comprises:
In light data cell ODU loop, two tunnel loops are set, one of them bearer service transmission, another is as virtual protection passage loop; And
Detect when alarm or fault occurring in the tunnel loop of bearer service, carry out the control of tunnel Loop Protection according to testing result.
Preferably, the tunnel loop of bearer service is different with the loop direction that is used as virtual protection passage loop.
Preferably, carry out the control of tunnel Loop Protection, comprising according to testing result:
Detect a business only when alarm or fault occurring in the tunnel link of process, with described professional bridge joint or be switched on the virtual protection passage loop.
Preferably, carry out the control of tunnel Loop Protection, comprising according to testing result:
Detect more than two when all alarm or fault occurring in the tunnel link of professional process, when perhaps detecting source ODU and place ODU and all breaking down, stop described professional bridge joint or be switched on the virtual protection passage loop.
Preferably, described alarm comprises that client layer corresponds to the alarm of tunnel loop of bearer service or the alarm of the tunnel loop that service layer corresponds to bearer service; Described fault comprises the link failure between ODU fault or the adjacent ODU.
Preferably, can carry the light signal of any wavelength in the described tunnel loop.
A kind of smooth data cell loop share protect control device comprises:
The unit is set, is used for two tunnel loops being set at light data cell ODU loop, one of them bearer service transmission, another is as virtual protection passage loop;
Detecting unit, whether the tunnel loop that is used for detecting bearer service alarm or fault occur; And
The protection control unit is used for carrying out the control of tunnel Loop Protection according to testing result.
Preferably, the tunnel loop of bearer service is different with the loop direction that is used as virtual protection passage loop.
Preferably, described detecting unit detect a business only when alarm or fault occurring in the tunnel link of process, described protection control unit is with described professional bridge joint or be switched on the virtual protection passage loop.
Preferably; described detecting unit detects more than two when all alarm or fault occurring in the tunnel link of professional process; when perhaps detecting source ODU and place ODU and all breaking down, described protection control unit stops described professional bridge joint or is switched on the virtual protection passage loop.
Preferably, described alarm comprises that client layer corresponds to the alarm of tunnel loop of bearer service or the alarm of the tunnel loop that service layer corresponds to bearer service; Described fault comprises the link failure between ODU fault or the adjacent ODU.
Preferably, can carry the light signal of any wavelength in the described tunnel loop.
The present invention realizes ODU is shared the protection control of loop in the electricity layer, improved network resource utilization, has strengthened the configurability to service protection; More refinement ODU share the protection granularity of loop, enriched protected mode, ODU provides special-purpose share protect for the light data cell.
Description of drawings
Fig. 1 is the schematic diagram of carrying wavelength of optical signal in optical layer protective passage and the service aisle;
The schematic diagram that Fig. 2 disposes in the ODUk link for ODUk channels share Loop Protection;
Fig. 3 shares the structural representation of Loop Protection for ODUk of the present invention;
Fig. 4 is that source of the present invention, destination node detect client layer alarm back and trigger bridge joint or be switched to schematic diagram on the virtual protection passage loop;
Fig. 5 alarms the source of triggering afterwards, destination node bridge joint or change to schematic diagram on the virtual protection passage loop by the protected professional institute of the present invention process node detection to service layer;
Fig. 6 is switched to the schematic diagram on the virtual protection passage loop for the protected business of the present invention through node failure triggering source, destination node bridge joint;
The schematic diagram that Fig. 7 does not trigger professional bridge joint or switches for virtual work passage loop of the present invention many places fault;
The schematic diagram that Fig. 8 does not trigger professional bridge joint or switches for the protected service source of the present invention, destination node fault;
Fig. 9 is the structural representation of business configuration of the present invention and protection configuration set;
Figure 10 shares ring protection cross unit external interface schematic diagram for the present invention;
Figure 11 shares Loop Protection network configuration schematic diagram for ODUk of the present invention;
Figure 12 is that the ODUk of business shown in Figure 11 shares the ring protection configuration schematic diagram;
The internal chiasma schematic diagram of correspondence when Figure 13 is in guard mode for the present invention in sharing the ring protection cross unit;
Figure 14 shares the schematic diagram that the ring protection trigger protection is switched for ODUk of the present invention;
Figure 15 is the composition structural representation of light data cell loop share protect control device of the present invention.
Embodiment
Basic thought of the present invention is: owing to be necessary for wavelength optical signals when carrying out the protection of channel service in photosphere special-purpose protection passage is set, in case the protection channel failure of corresponding wavelength, to cause the signal of this wavelength can't pass through the protection channel transfer, this is with the protection of serious limiting protecting passage to business, the present invention proposes to realize ODU is shared the protection control of loop in the electricity layer, improved network resource utilization, strengthened configurability service protection; More refinement ODU share the protection granularity of loop, enriched protected mode, ODU provides special-purpose share protect for the light data cell.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 shares the structural representation of Loop Protection for ODUk of the present invention; as shown in Figure 3, in loop shape OTN network, according to the demand of protection particle; at first plan two ODUk (k=0; 1,2,3; ...) the tunnel loop; the tunnel loop does not have the restriction of wavelength, as long as adjacent point-to-point transmission can be reserved enough ODUk capacity, just can set up the tunnel loop.Specifying one of them direction loop (the counterclockwise inner ring road among the figure) is virtual work passage loop; another direction loop (outer ring clockwise) is the virtual protection loop; with Working service ODUi (i≤k) be configured on the virtual work passage loop; be configured on the virtual work passage loop between the A-E as the T1 business among the figure; the T2 business is configured on the virtual work passage loop of E-D-C-B, and configuration rule is the capacity of the volume of business of each section of striding (link between adjacent node (ODU)) configuration smaller or equal to the tunnel loop.And the capacity of virtual protection loop be reserved need not.
The shared Loop Protection of ODUk will be protected from following inefficacy scene and switch like this.
Fig. 4 is source of the present invention; destination node detects client layer alarm back and triggers bridge joint or be switched to schematic diagram on the virtual protection passage loop; as shown in Figure 4; after protected business detects the ODUk alarm (the virtual work passage loop alarm among the figure between node A and the node E) that client layer corresponds to virtual work passage loop; to start channels share protection control; source in business; destination node (node E) is with professional bridge joint or be switched on the virtual protection passage loop; and with non-source on the virtual protection loop; the protection passage of destination node connects straight-through, is about to node A to passage connection between the node D.
Fig. 5 alarms the source of triggering afterwards, destination node is bridged to or changes to schematic diagram on the virtual protection passage loop to service layer by the protected professional institute of the present invention process node detection; as shown in Figure 5; after protected business only detects the ODUk alarm that service layer corresponds to virtual work passage loop; alarm is delivered to source, the destination node of protected business, is enabled in the channels share protection control of service source, destination node.In the source of business, destination node is with professional bridge joint or be switched on the virtual protection passage loop, and professionally connects straight-through through the protection passage on the outer node of node with protected on the virtual protection loop.
Fig. 6 is switched to the schematic diagram on the virtual protection passage loop for the protected business of the present invention through node failure triggering source, destination node bridge joint; as shown in Figure 6; after the node of protected professional process breaks down; can detect the ODUk alarm of service layer in the malfunctioning node both sides; perhaps detect alarm at service source, destination node; start the channels share protection control of service source, destination node, with professional bridge joint or be switched on the virtual protection passage loop.
The schematic diagram that Fig. 7 does not trigger professional bridge joint or switches for virtual work passage loop of the present invention many places fault; the schematic diagram that Fig. 8 does not trigger professional bridge joint or switches for the protected service source of the present invention, destination node fault; as Fig. 7, shown in Figure 8; after the many places fault appears in the virtual work passage of the protected business of carrying; after perhaps Ye Wu source node and destination node all break down; also can't recover professional even switch, therefore the present invention's this moment stops the action that ODUk loop share protect produces bridge joint or switches.Among the present invention; the many places fault appears in the virtual work passage that carries protected business; be meant at least two business in the virtual work passage of the protected business of carrying process link failure or alarm appears; the alarm here refers to the alarm that client layer corresponds to the tunnel loop of bearer service; or service layer corresponds to the alarm of the tunnel loop of bearer service, and fault refers to link failure or the fault of node own between the node (ODUk).
Below, further illustrate the essence of technical solution of the present invention by concrete application example.
Fig. 9 is the structural representation of business configuration of the present invention and protection configuration set; as shown in Figure 9; in the ODUk system of centralized intersection; client signal pools the ODUk signal by branch road side interface unit; by the ODUk cross unit; be crossed to any one group trackside interface unit, pool the OTU signal, be multiplexed in the OTN system by group's trackside interface unit.Share in the Loop Protection at ODUk; based on above-mentioned centralized ODUk cross over model; formation is based on the powerful interleaving function of electric cross matrix, the ODUk that props up trackside can be crossed among optical transmission unit (OUT, the Optical TransportUnit) OTUk of group's trackside of any wavelength of any direction.Thereby realize technical scheme of the present invention.
In possessing the OTN network of electric cross matrix; in the ODUk cross unit; increase virtual shared Loop Protection cross unit (VSPR; Virtual Shared Protection Ring cross-unit); Figure 10 shares ring protection cross unit external interface schematic diagram for the present invention; as shown in figure 10; virtual shared Loop Protection cross unit VSPR possesses 12 virtual OTUk passages (VOTUk); the backboard side ODUk relationship maps of branch road side interface unit is arrived the AA (west is paths upwards) of VSPR; AD (west is paths downwards); BA (paths on the east orientation), four virtual OTUk passages of BD (paths under the east orientation).The backboard side ODUk relationship maps of group's trackside interface unit is arrived the AWI/O (west is to work I/O passage) of VSPR; API/O (west is to protection I/O passage); BWI/O (east orientation work I/O passage), eight virtual OTUk passages of BPI/O (east orientation protection I/O passage).According to aforesaid channels share protection controlling schemes, four kinds of node states of definition: Idle state (IDLE), straight-through attitude (PASS), A is to switching attitude (ASWITCH), and B is to switching attitude (BSWITCH); Defining virtual is shared cross-linked between each empty ODUk port of four kinds of node states of Loop Protection cross unit VSPR, is equivalent to the loop that node shown in Figure 8 constitutes.Wherein, virtual shared Loop Protection cross unit VSPR can be arranged in the cross unit of electric cross matrix, also can be arranged in the middle of automatic protective system (APS, the Automatic ProtectionSystem) controller.
Among the virtual shared Loop Protection cross unit VSPR; need management plane to pass through network management configuration AA, AD, the virtual OTUk passage of BA, BD is related with ODUk in the branch road side interface unit, configuration AWI/O, API/O, eight virtual OTUk passages of BWI/O, BPI/O are related with the ODUk in group trackside interface interface unit.At first, webmaster is with other attribute informations of protection group, and the APS controller is given in configuration.Dispose then in the whole network node; API/O, four virtual OTUk passages of BPI/O be associated with the APS controller; whether the whole network protection ODUk passage can be used by the verification of APS controller, after verification is passed through associated ports is disposed to virtual shared Loop Protection cross unit VSPR.The relevant virtual OTUk passage of other of the ODUk process of will working then be associated with configuration APS controller, by business up and down the APS controller of circuit node carry out verification, after verification is passed through, associated ports is disposed to virtual shared Loop Protection cross unit VSPR.
After the virtual OTUk passage association of configuration protection group and VSPR, can share Loop Protection by alarm triggered ODUk and switch.Alarm detection is finished by group's trackside interface unit and branch road side interface unit.The backboard ODUk intersection output port of alarm detection point selection group trackside interface unit, the backboard ODUk intersection input port of branch road side interface unit.After test point report and alarm incident, at first mate associated ports by the APS controller, if be the alarm of AWI and BWI port, then start channels share protection control.Then the node state of calculating is sent to virtual shared Loop Protection cross unit VSPR.Carry out to intersect by VSPR again and switch, thereby realization is to the share protect of ODUk.
Below in conjunction with aforementioned means and a concrete network example, implementation process of the present invention is described in detail.
At first need granular size, determine that ODUk shares the protection granularity (k) of Loop Protection group according to the protection ODUk passage redundancy of need protection in the loop net professional granular size and reservation.Figure 11 shares Loop Protection network configuration schematic diagram for ODUk of the present invention, as shown in figure 11, has the protection passage (shown in dotted line) of an ODU2, and this passage is not striden the restriction of intersegmental consistent wavelength, and complete runs through whole loop network; Professional be 1 ODU2 between AB and 3 ODU1 between BC need protection.Therefore the protection granularity of determining the shared Loop Protection group of this ODUk is ODU2 (k=2).
Then according to the networking connection of protection ODUk passage and virtual OTUk passage API/O, the BPI/O of each node VSPR of topological arrangement, Figure 12 is that the ODUk of business shown in Figure 11 shares the ring protection configuration schematic diagram, as shown in figure 12, dotted line is the path of protection passage process, the backboard side ODUk output port of protecting group's trackside interface unit of passage process is mapped to API, the BPI of VSPR according to direction; The backboard side ODUk input port of protecting group's trackside interface unit of passage process is mapped to APO, the BPO of VSPR according to direction; At each node this configuration information is sent to the APS controller, the APS controller is according to the information of the whole network, and whether the ODUk passage of verification protection is available; Verification by after the mapping of virtual OTUk passage is sent to the VSPR unit.
Next, the virtual OTUk passage of the VSPR of configuration effort business.According to the principle that in the channels share protection optical channel is inserted the OPCS optical switch, the professional client's side of node east orientation is connected to BA, BD; The node west is connected to AA, AD to professional client's side; The Working service line side of node east orientation turnover is connected to BWI, BWO; The node west is connected to AWI, AWO to the Working service line side of turnover.The internal chiasma schematic diagram of correspondence when Figure 13 is in guard mode for the present invention in sharing the ring protection cross unit, for example among Figure 13 at node A, the backboard side output ODU2 of branch road side interface unit is associated with in the virtual OTU2 passage of BA of VSPR, the backboard side of branch road side interface unit is imported ODU2 be associated with in the virtual OTU2 passage of BD of VSPR; The backboard side output ODU2 of group's trackside interface unit of business process is associated with in the virtual OTU2 passage of BWO, the backboard side input ODU2 of group's trackside interface unit of business process is associated with in the virtual OTU2 passage of BWI.In Node B, the backboard side input ODU2 of group's trackside interface unit of business process is associated with in the virtual OTU2 passage of AWI, the backboard side output ODU2 of group's trackside interface unit of business process is associated with in the virtual OTU2 passage of AWO; The backboard side input ODU2 of branch road side interface unit is associated with in the virtual OTU2 passage of AD of VSPR, the backboard side of branch road side interface unit is exported ODU2 be associated with in the virtual OTU2 passage of AA of VSPR; In like manner 3 ODU1 are associated with in the virtual OTU2 passage of BA, BD, BWI, BWO of VSPR.Configuration information is sent to the APS controller, and after the verification of APS controller, the VSPR unit is given in configuration.
After the success of protection configuration set, (AA is connected to AWO, BPO with the node idle condition intersection information of (as shown in figure 13) by the VSPR unit; AWI is connected to AD; BA is connected to BWO, APO; BWI is connected to BD) send to the ODUk cross unit, intersection is created as exploit affair UNICOM.The protection group enters operating state.
In network, break down; alarm detection point---the backboard ODUk output port of group's trackside interface unit; the backboard ODUk input port of branch road side interface unit is monitored the signal quality of ODUk in real time---and the configuration according to the subnet protection reports Signal Fail (SF; Signal Fail) or the signal cracking (SD, Signaldegrade) alarm.Figure 14 shares the schematic diagram that the ring protection trigger protection is switched for ODUk of the present invention, and as shown in figure 14, AB strides intersegmental fibercuts, and the alarm detection point of B node can detect Signal Fail, and test point position and alarm type are reported the APS controller.The APS controller of B node is converted to the virtual OTU2 passage of this node VSPR with warning position, and is complementary with the virtual OTU2 passage of VSPR configuration; If the coupling back judges that alarm occurs in AWI or the virtual OTU2 passage of BWI, then the trigger port share protect agreement of VSPR.By the control plane at APS controller place, fault and protocol status are sent to other nodes in the loop net.After protocol stabilizes, obtain the guard mode of each node, the A Node B is to switching, and B node A is to switching, and the C node is straight-through, and the D node is straight-through.The APS controller of each node sends to VSPR with the node state of calculating, and VSPR gives the ODUk Cross module with the ODU2 cross-over configuration that each state is determined.For example A is to the intersection information of switching---AA is connected to AWO, BPO; BPI is connected to AD; BA is connected to BWO, APO; BWI is connected to BD.B is to the intersection information of switching---AA is connected to AWO, BPO; AWI is connected to AD; BA is connected to BWO, APO; API is connected to that the intersection information of BD. pass-through state---AA is connected to AWO; AWI is connected to AD; BA is connected to BWO; BWI is connected to BD; API is connected to BPO, and BPI is connected to APO.The ODUk Cross module receive ODUk＜-intersection information of ODUk, carry out to intersect and switch, finish the switching action that ODUk shares Loop Protection, UNICOM again in the service disconnection 50ms.
Figure 15 is the composition structural representation of light data cell loop share protect control device of the present invention, as shown in figure 15, light data cell loop share protect control device of the present invention comprises unit 150, detecting unit 151 and protection control unit 152 is set, wherein, unit 150 is set to be used at light data cell ODU loop two tunnel loops being set, one of them bearer service transmission, another is as virtual protection passage loop; Whether the tunnel loop that detecting unit 151 is used for detecting bearer service alarm or fault occur; Protection control unit 152 is used for carrying out the control of tunnel Loop Protection according to testing result.The tunnel loop of bearer service is different with the loop direction that is used as virtual protection passage loop.Described alarm comprises that client layer corresponds to the alarm of tunnel loop of bearer service or the alarm of the tunnel loop that service layer corresponds to bearer service; Described fault comprises the link failure between ODU fault or the adjacent ODU.Can carry the light signal of any wavelength in the described tunnel loop.
Detecting unit 151 detect a business only when alarm or fault occurring in the tunnel link of process, protection control unit 152 is with described professional bridge joint or be switched on the virtual protection passage loop.
Perhaps; detecting unit 151 detects more than two when all alarm or fault occurring in the tunnel link of professional process; when perhaps detecting source ODU and place ODU and all breaking down, protection control unit 152 stops described professional bridge joints or is switched on the virtual protection passage loop.
Those skilled in the art are to be understood that; light data cell loop share protect control device shown in Figure 15 is provided with for realizing aforesaid smooth data cell loop share protect control method; each processing unit can be understood with reference to the associated description in the earlier figures 3 to Figure 14 in the device shown in Figure 15; its function can realize by the program that runs on the processor, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (12)
1. a light data cell loop share protect control method is characterized in that, comprising:
In light data cell ODU loop, two tunnel loops are set, one of them bearer service transmission, another is as virtual protection passage loop; And
Detect when alarm or fault occurring in the tunnel loop of bearer service, carry out the control of tunnel Loop Protection according to testing result.
2. method according to claim 1 is characterized in that, the tunnel loop of bearer service is different with the loop direction that is used as virtual protection passage loop.
3. method according to claim 2 is characterized in that, carries out the control of tunnel Loop Protection according to testing result, comprising:
Detect a business only when alarm or fault occurring in the tunnel link of process, with described professional bridge joint or be switched on the virtual protection passage loop.
4. method according to claim 2 is characterized in that, carries out the control of tunnel Loop Protection according to testing result, comprising:
Detect more than two when all alarm or fault occurring in the tunnel link of professional process, when perhaps detecting source ODU and place ODU and all breaking down, stop described professional bridge joint or be switched on the virtual protection passage loop.
5. according to each described method in the claim 1 to 4, it is characterized in that described alarm comprises that client layer corresponds to the alarm of tunnel loop of bearer service or the alarm of the tunnel loop that service layer corresponds to bearer service; Described fault comprises the link failure between ODU fault or the adjacent ODU.
6. method according to claim 5 is characterized in that, can carry the light signal of any wavelength in the described tunnel loop.
7. a light data cell loop share protect control device is characterized in that, comprising:
The unit is set, is used for two tunnel loops being set at light data cell ODU loop, one of them bearer service transmission, another is as virtual protection passage loop;
Detecting unit, whether the tunnel loop that is used for detecting bearer service alarm or fault occur; And
The protection control unit is used for carrying out the control of tunnel Loop Protection according to testing result.
8. device according to claim 7 is characterized in that, the tunnel loop of bearer service is different with the loop direction that is used as virtual protection passage loop.
9. device according to claim 7; it is characterized in that; described detecting unit detect a business only when alarm or fault occurring in the tunnel link of process, described protection control unit is with described professional bridge joint or be switched on the virtual protection passage loop.
10. device according to claim 7; it is characterized in that; described detecting unit detects more than two when all alarm or fault occurring in the tunnel link of professional process; when perhaps detecting source ODU and place ODU and all breaking down, described protection control unit stops described professional bridge joint or is switched on the virtual protection passage loop.
11., it is characterized in that described alarm comprises that client layer corresponds to the alarm of tunnel loop of bearer service or the alarm of the tunnel loop that service layer corresponds to bearer service according to each described device in the claim 7 to 10; Described fault comprises the link failure between ODU fault or the adjacent ODU.
12. device according to claim 11 is characterized in that, can carry the light signal of any wavelength in the described tunnel loop.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910090456 CN101998178A (en) | 2009-08-12 | 2009-08-12 | Shared protection control method and device of optical data unit (ODU) loop |
| PCT/CN2009/075060 WO2011017863A1 (en) | 2009-08-12 | 2009-11-20 | Protection control method and apparatus for shared ring of optical data unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910090456 CN101998178A (en) | 2009-08-12 | 2009-08-12 | Shared protection control method and device of optical data unit (ODU) loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101998178A true CN101998178A (en) | 2011-03-30 |
Family
ID=43585863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910090456 Pending CN101998178A (en) | 2009-08-12 | 2009-08-12 | Shared protection control method and device of optical data unit (ODU) loop |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101998178A (en) |
| WO (1) | WO2011017863A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187404A1 (en) * | 2013-12-26 | 2014-11-27 | 中兴通讯股份有限公司 | Potn network oduk ring planning method and device |
| CN106941373A (en) * | 2017-03-21 | 2017-07-11 | 烽火通信科技股份有限公司 | A kind of device and method that broadcasting service protection is realized in optical transfer network |
| CN110830106A (en) * | 2018-08-08 | 2020-02-21 | 中兴通讯股份有限公司 | Optical channel protection method, device, equipment and computer readable storage medium |
| CN114374899A (en) * | 2021-12-30 | 2022-04-19 | 北京格林威尔科技发展有限公司 | Method and device for positioning service fault of optical transport network |
| CN114584869A (en) * | 2022-02-16 | 2022-06-03 | 武汉烽火技术服务有限公司 | V-SDH interface resource management method, device, equipment and storage medium |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20011657A1 (en) * | 2001-07-31 | 2003-01-31 | Cit Alcatel | METHOD TO MANAGE MULTIPLE FAULTS OF DIFFERENT TYPES IN TELECOMMUNICATIONS NETWORKS WITH RING TOPOLOGY |
| EP1411665A1 (en) * | 2002-10-18 | 2004-04-21 | Alcatel | Method and apparatus for shared protection in an optical transport network ring based on the ODU management |
| CN100403660C (en) * | 2004-09-04 | 2008-07-16 | 华为技术有限公司 | Dual-fiber optical multiplexing section sharing protective ring protecting method and its node device |
| CN1870480B (en) * | 2005-05-29 | 2011-02-16 | 华为技术有限公司 | Ring network protection method of optical transmission network |
| CN101001116B (en) * | 2007-01-16 | 2012-06-13 | 烽火通信科技股份有限公司 | Method for implementing virtual MSP-ring |
| CN101626272B (en) * | 2008-07-10 | 2013-03-20 | 中兴通讯股份有限公司 | Method for realizing error connection prevention in optical network |
-
2009
- 2009-08-12 CN CN 200910090456 patent/CN101998178A/en active Pending
- 2009-11-20 WO PCT/CN2009/075060 patent/WO2011017863A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187404A1 (en) * | 2013-12-26 | 2014-11-27 | 中兴通讯股份有限公司 | Potn network oduk ring planning method and device |
| CN106941373A (en) * | 2017-03-21 | 2017-07-11 | 烽火通信科技股份有限公司 | A kind of device and method that broadcasting service protection is realized in optical transfer network |
| WO2018171209A1 (en) * | 2017-03-21 | 2018-09-27 | 烽火通信科技股份有限公司 | Device and method for realizing broadcast service protection in optical transport network |
| CN106941373B (en) * | 2017-03-21 | 2019-09-17 | 烽火通信科技股份有限公司 | A kind of device and method for realizing broadcasting service protection in optical transfer network |
| CN110830106A (en) * | 2018-08-08 | 2020-02-21 | 中兴通讯股份有限公司 | Optical channel protection method, device, equipment and computer readable storage medium |
| CN110830106B (en) * | 2018-08-08 | 2022-03-18 | 中兴通讯股份有限公司 | Optical channel protection method, device, equipment and computer readable storage medium |
| CN114374899A (en) * | 2021-12-30 | 2022-04-19 | 北京格林威尔科技发展有限公司 | Method and device for positioning service fault of optical transport network |
| CN114374899B (en) * | 2021-12-30 | 2023-12-15 | 北京格林威尔科技发展有限公司 | Method and device for positioning service faults of optical transmission network |
| CN114584869A (en) * | 2022-02-16 | 2022-06-03 | 武汉烽火技术服务有限公司 | V-SDH interface resource management method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011017863A1 (en) | 2011-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100508430C (en) | Communicating structure between optical network and connecting setting method | |
| CN105721045B (en) | A kind of method and node of pretection switch | |
| WO2006026914A1 (en) | Service protecting method for optical transmission network and node device | |
| RU2730086C1 (en) | Switching method with combination of reservation group, control device and optical communication device | |
| CN101848035B (en) | The method of share protect, system and node device in a kind of OTN network | |
| CN101262403B (en) | Method and device for supplying packet ring protection | |
| US7151893B2 (en) | Data transmission system, transmission method of optical network monitor control signal, and node | |
| CN102356606B (en) | The path-level protection of the payload of numeral packing | |
| CN104393914B (en) | A multiplex route recovering method for an optical fiber differential protection device | |
| CN101262406A (en) | Two-way loop network system and its control method | |
| CN101998178A (en) | Shared protection control method and device of optical data unit (ODU) loop | |
| JP2004140789A (en) | Network node using reserve optical switch in which 2 x 2 switch function is used | |
| CN101674217B (en) | Method for realizing permanent ring network protection in MESH network | |
| EP2466793A1 (en) | Method and device for protecting network | |
| US20040208552A1 (en) | Architectural switching arrangement for core optical networks | |
| US20040085954A1 (en) | Out-of-band signalling apparatus and method for an optical cross connect | |
| CN101166069A (en) | Method and system for automatic switching of optical module in optical transmission network | |
| US7447430B2 (en) | Optical cross connect apparatus and optical transmission system | |
| WO2012041061A1 (en) | Protection method and apparatus of optical network | |
| CN101345600B (en) | Method and system for implementing sub-wavelength passage sharing protection by electronic crossing mode | |
| CN101667863B (en) | Device and method for enhancing channel alarm triggering in multiplex section shared ring net protection | |
| CN110113258A (en) | A kind of method and system using control plane chain circuit automatic protection data surface link | |
| EP2466767B1 (en) | Adapting equipment and method | |
| CN209930282U (en) | System for automatically protecting data plane link by using control plane link | |
| CN202282779U (en) | Optical cable jumper wire device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110330 |