CN102468977A - Packet transport network (PTN) protection method and device - Google Patents
Packet transport network (PTN) protection method and device Download PDFInfo
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- CN102468977A CN102468977A CN2010105526053A CN201010552605A CN102468977A CN 102468977 A CN102468977 A CN 102468977A CN 2010105526053 A CN2010105526053 A CN 2010105526053A CN 201010552605 A CN201010552605 A CN 201010552605A CN 102468977 A CN102468977 A CN 102468977A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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Abstract
The invention discloses a packet transport network (PTN) protection method and device. The PTN protection method comprises the following steps: detecting that whether a main pseudo-line has a fault or not through the operation management and the maintenance information of the main pseudo-line which bears a service currently, and switching the service to a standby pseudo-line from the main pseudo-line if the main pseudo-line has a fault. According to the PTN protection method and device, the problem that the UNI (user network interface) side and the PE (provide edge) node of the PTN can not be protected in the prior art is solved, thus the service of the PTN is protected, and the safety and the stability of the PTN are improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of Packet Transport Network (PacketTransportNetwork, guard method PTN) and device.
Background technology
Along with the extensive use of PTN network, increasingly high for the reliability requirement of client traffic, each big operator also more and more payes attention to for the requirement of protection.The many protections of PTN network application at present mainly are TMP (T-MPLS Path) 1+1 of passage layers, 1: 1 linear protection, are exactly the looped network protection (wrapping and steering protection) of TMS (T-MPLS Section) layer in addition.These protections mainly are to (the Network Node Interface of the NNI in the PTN network; Network-Node Interface) protection of side; And do not realize UNI (User Network Interface; User Network Interface) protection of the protection of side and PE (Provider Edge, provider edge equipment) node.Along with operator for service reliability require increasingly highly, begin requirement the UNI side and the PE node of PTN network protected.
Yet the inventor finds: in the prior art, have no the technical scheme of protecting about to the UNI side and the PE node of PTN network.
Summary of the invention
Main purpose of the present invention is to provide a kind of guard method and device of Packet Transport Network, to address the above problem at least.
According to an aspect of the present invention; A kind of guard method of Packet Transport Network is provided; It comprises: through the pseudo-line of the master of current bearer service (Pseudo Wire; Whether Operation, Administration and Maintenance (Operation Administration and Maintenance abbreviates OAM as) information abbreviation PW) detects the pseudo-line of said master and breaks down; If break down, then said business is switched to from the pseudo-line of said master and is equipped with on the pseudo-line.
Further; The OAM information of the pseudo-line of master through current bearer service detects the step whether pseudo-line of said master break down and comprises: whether the provider edge equipment PE node that detects on the pseudo-line of said master through said OAM information breaks down; Perhaps; Detect User Network Interface UNI and whether break down, perhaps, detect all corresponding paths of the pseudo-line of said master and whether all break down; If said PE node breaks down, perhaps said UNI breaks down, and all breaking down in perhaps said all paths, then judges the pseudo-line of said master and break down.
Further; Detect after whether all corresponding paths of the pseudo-line of said master all break down; Also comprise: if the path fails of the corresponding said business of carrying of the pseudo-line of said master and exist at least one not break down with the corresponding path of the pseudo-line of said master is then judged the pseudo-line of said master and do not broken down; Institute's loaded service is attend in the path of breaking down to be switched in the said path of not breaking down.
Further, with said business from the pseudo-line of said master be switched to be equipped with on the pseudo-line before, also comprise: detect and saidly be equipped with pseudo-line and warning information whether occurs; If warning information do not occur, then carry out said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master.
Further, detect and saidly be equipped with pseudo-line and whether occur also comprising after the warning information:, then do not carry out said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master if saidly be equipped with pseudo-line and warning information occurs.
Further, detect before whether the pseudo-line of said master break down, also comprise: be equipped with pseudo-line for said loaded service disposes the pseudo-line of said master and said in the OAM information of the pseudo-line of master through current bearer service; The tunnel and the said tunnel that is equipped with pseudo-line of carrying of the pseudo-line of said master carried in configuration; Dispose pseudo-line of said master and the said OAM information that is equipped with pseudo-line.
According to a further aspect in the invention, a kind of protective device of Packet Transport Network is provided, has comprised: detecting unit, whether the Operation, Administration and Maintenance OAM information that is used for the pseudo-line of master through current bearer service detects the pseudo-line of said master and breaks down; Switch unit is used for when the pseudo-line of said master breaks down said business is switched to from the pseudo-line of said master and is equipped with pseudo-line.
Further; Said detecting unit comprises: detection module; Be used for whether breaking down, perhaps, detect User Network Interface UNI and whether break down through the provider edge equipment PE node that said OAM information detects on the pseudo-line of said master; Whether perhaps, detect all corresponding paths of the pseudo-line of said master all breaks down; First judge module is used for breaking down at said PE node, and perhaps said UNI breaks down, and perhaps, judges the pseudo-line of said master when all break down in said all paths and breaks down.
Further; Said detecting unit also comprises: second judge module; Be used in the path fails of the corresponding said business of carrying of the pseudo-line of said master and when having at least one corresponding with the pseudo-line of said master not breaking down, judge the pseudo-line of said master and do not break down; Wherein, said switch unit is used for that also institute's loaded service is attend in the path of breaking down and switches to of said path of not breaking down.
Further, said detecting unit also be used for said business is switched to from the pseudo-line of said master be equipped with on the pseudo-line before, detect and saidly be equipped with pseudo-line and warning information whether occurs; If warning information do not occur, then notify said switch unit to carry out and said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master.
In the present invention; Through the pseudo-line of the master that will break down (Pseudo Wire; Abbreviation PW) switching services on is to being equipped with on the pseudo-line; Solved in the prior art problem that can't protect the UNI side and the PE node of PTN network, and then reached protective effect, improve internet security and stability the PTN Network.
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 a kind of preferred flow chart according to the guard method of the Packet Transport Network of the embodiment of the invention;
Fig. 2 is the dual-homing networking sketch map according to the PTN that has linear protection of the embodiment of the invention;
Fig. 3 is the dual-homing networking sketch map according to the PTN that does not have linear protection of the embodiment of the invention;
Fig. 4 is a kind of preferred flow chart according to the configuration protection parameter of the embodiment of the invention;
Fig. 5 is a kind of preferred construction sketch map according to the protective device of the Packet Transport Network of the embodiment of the invention.
Embodiment
Fig. 1 is a kind of preferred flow chart according to the guard method of the Packet Transport Network of the embodiment of the invention, and it comprises the steps:
S102, whether the Operation, Administration and Maintenance OAM information through the pseudo-line PW of the master of current bearer service detects said main PW and breaks down;
S104, if break down, then said business is switched to fully PW from said main PW on.
In this preferred embodiment; Adopt TMC (T-MPLS Channel) channel layer protection (PW protection) to realize the method that the PTN network is dual-homed; The PW protection is meant and to certain specific PW a subsequent use PW is provided, when this PW breaks down, can switch to business on the subsequent use PW fast.Through the pseudo-line of the master that will break down (Pseudo Wire; Abbreviation PW) switching services on is to being equipped with on the pseudo-line; Solved in the prior art problem that can't protect the UNI side and the PE node of PTN network, and then reached protective effect, improve internet security and stability the PTN Network.
Preferably; The OAM information of main PW through current bearer service detects the step whether said main PW break down and comprises: whether the provider edge equipment PE node that detects on the pseudo-line of said master through said OAM information breaks down; Perhaps; Detect UNI and whether break down, perhaps, detect all corresponding paths of the pseudo-line of said master and whether all break down; If said PE node breaks down, perhaps, UNI breaks down, and perhaps, all break down in said all paths, then judges said main PW and break down.In this preferred embodiment, judge in several ways whether main PW breaks down, increased the flexibility and the scope of application of the present invention judged.
Preferably; Detect after whether all corresponding paths of the pseudo-line of said master all break down; Also comprise: if the path fails of the corresponding said business of carrying of the pseudo-line of said master and exist at least one not break down with the corresponding path of the pseudo-line of said master is then judged said main PW and do not broken down; Institute's loaded service is attend in the path of breaking down to be switched in the said path of not breaking down.In this preferred embodiment,, professional continuity and correctness have been guaranteed through carrying out hand-off process under the situation about not breaking down at main pseudo-line.
Preferably, said business is switched to before fully PW goes up from said main PW, also comprises: detects said PW fully and warning information whether occurs; If warning information do not occur, then carry out said said business is switched to the step on the said PW of being equipped with from said main PW.In this preferred embodiment,, the PW of winner can be switched on the normal PW of being equipped with, thereby guarantee professional continuity and correctness through the decision operation before switching.
Preferably, detect the said PW that is equipped with and whether occur also comprising after the warning information:, then do not carry out said said business is switched to the step on the said PW of being equipped with from said main PW if warning information appears in the said PW of being equipped with.In this preferred embodiment,, the PW of winner can be switched on the normal PW of being equipped with, thereby guarantee professional continuity and correctness through the decision operation before switching.
Preferably, as shown in Figure 4, detect before whether said main PW break down in OAM information through the pseudo-line PW of the master of current bearer service, also comprise: for said loaded service disposes said main PW and the said PW of being equipped with; The tunnel and the tunnel that carries the said PW of being equipped with of said main PW carried in configuration; Dispose the OAM information of said main PW and the said PW of being equipped with.Preferably, OAM information comprises: CC, CV, CSF.
Preferably; As shown in Figure 4; Detect before whether said main PW break down in OAM information through the pseudo-line PW of the master of current bearer service; Also comprise: configuration PW protection group information, wherein, this PW protection group information comprises: protection type (1+1,1: 1), protected mode (recoverable or irrevocable formula), lag time etc.; The business of the configuration emulation of wanting.
In this preferred embodiment,, can effectively play protective effect to the PTN Network through OAM warning information and configuration PW redundancy protecting.
Fig. 2 is the dual-homing networking sketch map according to the PTN that has linear protection of the embodiment of the invention, and wherein, dual-homed (Dual Homing) is a kind of network topology; In this network topology; Equipment is connected to network with the mode of independent access point (attachment point), and in addition, an access point is main the connection; Another one is subsequent use connection, and it is activated under the situation of main connection failure.
In Fig. 2, path 1 is main PW passage, and path 2 is for being equipped with the PW passage, and path 3 is the protection path of main PW.Under different situations, can adopt different PW to come bearer service, for example, can select the PW of bearer service with reference to following table:
The PW of bearer service under the active and standby PW different conditions of table 1
In this preferred embodiment, adopted the method for linear protection.Concrete, comprise the steps: based on the service protecting method under the various situation of PTN
S1: between PE node A and PE node D, set up a two-way PW interface channel (through the P Node B), walk path 1; Between PE node A and PE node E, set up a subsequent use two-way PW interface channel (through P node C), walk path 2; Between PE node A and PE node D, set up linear protection (path 3), be used for protecting path 1;
S2: when path 1, path 2, path 3, UNI 1, UNI 2 all just often, it is professional that what walk in PTN inside is path 1;
S3: when path 1 or path 3 have only one to send fault, only carry out the lsp protection and switch, do not switch and do not carry out PW, business is still walked main PW and UNI 1;
S4: when UNI 1 or PE node D break down, or path 1 breaks down with path 3 simultaneously, and at this moment main PW is in SF (Signal Failure, Signal Fail) state, and at this moment business pours into above the subsequent use PW, walks path 2 and UNI 2;
S5: at this moment professional on main PW when UNI 2 breaks down or PE node E breaks down or path 2 is sent faults and at this moment is equipped with PW and is in the SF state, walk path 1 or path 3 and UNI 1.
In this preferred embodiment,, can effectively play protective effect to the PTN Network through OAM warning information and configuration PW redundancy protecting.
Embodiment 3
Fig. 3 is the dual-homing networking sketch map according to the PTN that does not have linear protection of the embodiment of the invention, and in Fig. 3, path 1 is main PW passage, and path 2 is for being equipped with the PW passage.
In this preferred embodiment, adopted the method for non-linear protection.Concrete, comprise the steps: based on the service protecting method under the various situation of PTN
S1: between PE node A and PE node D, set up a two-way PW interface channel (through the P Node B), walk path 1; Between PE node A and PE node E, set up a subsequent use two-way PW interface channel (through P node C), walk path 2;
S2: when path 1, path 2, UNI 1, UNI 2 all just often, it is professional that what walk in PTN inside is path 1;
S3: when UNI 1 or PE node D break down, or path 1 breaks down, and at this moment main PW is in SF, and at this moment business pours into above the subsequent use PW, walks path 2 and UNI 2;
S4: at this moment professional on main PW when UNI 2 breaks down or PE node E breaks down or path 2 is sent faults and at this moment is equipped with PW and is in the SF state, walk path 1 and UNI 1.
In this preferred embodiment,, can effectively play protective effect to the PTN Network through OAM warning information and configuration PW redundancy protecting.
Embodiment 4
Fig. 5 is a kind of preferred construction sketch map according to the protective device of the Packet Transport Network of the embodiment of the invention; It comprises: whether detecting unit 502 is used for Operation, Administration and Maintenance OAM information through the pseudo-line PW of the master of current bearer service and detects said main PW and break down; Switch unit 504 is used for when said main PW breaks down, said business being switched to PW fully from said main PW.
In this preferred embodiment; Adopt TMC (T-MPLS Channel) channel layer protection (PW protection) to realize the method that the PTN network is dual-homed; The PW protection is meant and to certain specific PW a subsequent use PW is provided, when this PW breaks down, can switch to business on the subsequent use PW fast.Through the pseudo-line of the master that will break down (Pseudo Wire; Abbreviation PW) switching services on is to being equipped with on the pseudo-line; Solved in the prior art problem that can't protect the UNI side and the PE node of PTN network, and then reached protective effect, improve internet security and stability the PTN Network.
Preferably; Said detecting unit 502 comprises: detection module; Be used for whether breaking down, perhaps, detect UNI and whether break down through the provider edge equipment PE node that said OAM information detects on the pseudo-line of said master; Whether perhaps, detect all corresponding paths of the pseudo-line of said master all breaks down; First judge module is used for breaking down at said PE node, and perhaps UNI breaks down, and perhaps, judges said main PW when all break down in said all paths and breaks down.In this preferred embodiment, judge in several ways whether main PW breaks down, increased the flexibility and the scope of application of the present invention judged.
Preferably; Said detecting unit 502 also comprises: second judge module; Be used in the path fails of the corresponding said business of carrying of the pseudo-line of said master and when having at least one corresponding with the pseudo-line of said master not breaking down, judge said main PW and do not break down; Wherein, said switch unit is used for that institute's loaded service is attend in the path of breaking down and switches to of said path of not breaking down.In this preferred embodiment,, professional continuity and correctness have been guaranteed through carrying out hand-off process under the situation about not breaking down at main pseudo-line.
Preferably, said detecting unit 502 also is used for said business is switched to fully on the PW from said main PW before, detects said PW fully and warning information whether occurring; If warning information do not occur, then notify said switch unit 504 to carry out and said said business is switched to the step on the said PW of being equipped with from said main PW.In this preferred embodiment,, the PW of winner can be switched on the normal PW of being equipped with, thereby guarantee professional continuity and correctness through the decision operation before switching.
Preferably; Whether said detecting unit 502 also is used to detect the said PW of being equipped with and occurs after the warning information; If warning information appears in the said PW that is equipped with, then said detecting unit 502 is notified said switch unit 504 not carry out and said said business is switched to the step on the said PW of being equipped with from said main PW.In this preferred embodiment,, the PW of winner can be switched on the normal PW of being equipped with, thereby guarantee professional continuity and correctness through the decision operation before switching.
Preferably; As shown in Figure 4; Detect before whether said main PW break down in OAM information, also carried out following steps according to the protective device of the Packet Transport Network of the embodiment of the invention: for said loaded service disposes said main PW and the said PW of being equipped with through the pseudo-line PW of the master of current bearer service; The tunnel and the tunnel that carries the said PW of being equipped with of said main PW carried in configuration; Dispose the OAM information of said main PW and the said PW of being equipped with.Preferably, OAM information comprises: CC, CV, CSF.
Preferably; As shown in Figure 4; Detect before whether said main PW break down in OAM information through the pseudo-line PW of the master of current bearer service; Protective device based on the Packet Transport Network of the embodiment of the invention has also been carried out following steps: configuration PW protection group information, and wherein, PW protection group information comprises: protection type (1+1,1: 1), protected mode (recoverable or irrevocable formula), lag time etc.; The business of the configuration emulation of wanting.
In this preferred embodiment,, can effectively play protective effect to the PTN Network through OAM warning information and configuration PW redundancy protecting.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the guard method of a Packet Transport Network PTN is characterized in that, comprising:
Whether the Operation, Administration and Maintenance OAM information of the pseudo-line of master through current bearer service detects the pseudo-line of said master and breaks down;
If break down, then said business is switched to from the pseudo-line of said master and is equipped with on the pseudo-line.
2. method according to claim 1 is characterized in that, the OAM information of the pseudo-line of master through current bearer service detects the step whether pseudo-line of said master break down and comprises:
Whether whether whether the provider edge equipment PE node that detects on the pseudo-line of said master through said OAM information breaks down, perhaps, detect User Network Interface UNI and break down, perhaps, detect all corresponding paths of the pseudo-line of said master and all break down;
If said PE node breaks down, perhaps said UNI breaks down, and all breaking down in perhaps said all paths, then judges the pseudo-line of said master and break down.
3. method according to claim 2 is characterized in that, detects after whether all corresponding paths of the pseudo-line of said master all break down, and also comprises:
If the path fails of the said business of carrying that the pseudo-line of said master is corresponding and exist at least one not break down with the corresponding path of the pseudo-line of said master is then judged the pseudo-line of said master and is not broken down;
Institute's loaded service is attend in the path of breaking down to be switched in the said path of not breaking down.
4. based on the described method of claim 1, it is characterized in that, with said business from the pseudo-line of said master be switched to be equipped with on the pseudo-line before, also comprise:
Detect and saidly be equipped with pseudo-line and warning information whether occurs;
If warning information do not occur, then carry out said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master.
5. whether method according to claim 4 is characterized in that, detect saidly to be equipped with pseudo-line and to occur also comprising after the warning information:
If saidly be equipped with pseudo-line and warning information occurs, then do not carry out said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master.
6. method according to claim 1 is characterized in that, detects before whether the pseudo-line of said master break down in the OAM information of the pseudo-line of master through current bearer service, also comprises:
For disposing the pseudo-line of said master and said, said loaded service is equipped with pseudo-line;
The tunnel and the said tunnel that is equipped with pseudo-line of carrying of the pseudo-line of said master carried in configuration;
Dispose pseudo-line of said master and the said OAM information that is equipped with pseudo-line.
7. the protective device of a Packet Transport Network PTN is characterized in that, comprising:
Detecting unit, whether the Operation, Administration and Maintenance OAM information that is used for the pseudo-line of master through current bearer service detects the pseudo-line of said master and breaks down;
Switch unit is used for when the pseudo-line of said master breaks down said business is switched to from the pseudo-line of said master and is equipped with pseudo-line.
8. device according to claim 7 is characterized in that, said detecting unit comprises:
Detection module; Be used for whether breaking down, perhaps, detect User Network Interface UNI and whether break down through the provider edge equipment PE node that said OAM information detects on the pseudo-line of said master; Whether perhaps, detect all corresponding paths of the pseudo-line of said master all breaks down;
First judge module is used for breaking down at said PE node, and perhaps said UNI breaks down, and perhaps, judges the pseudo-line of said master when all break down in said all paths and breaks down.
9. device according to claim 8; It is characterized in that; Said detecting unit also comprises: second judge module; Be used in the path fails of the corresponding said business of carrying of the pseudo-line of said master and when having at least one corresponding with the pseudo-line of said master not breaking down, judge the pseudo-line of said master and do not break down;
Wherein, said switch unit is used for that also institute's loaded service is attend in the path of breaking down and switches to of said path of not breaking down.
10. based on the described device of claim 7, it is characterized in that, said detecting unit also be used for said business is switched to from the pseudo-line of said master be equipped with on the pseudo-line before, detect and saidly be equipped with pseudo-line and warning information whether occurs; If warning information do not occur, then notify said switch unit to carry out and said said business is switched to the said step that is equipped with on the pseudo-line from the pseudo-line of said master.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552605.3A CN102468977B (en) | 2010-11-19 | 2010-11-19 | The guard method of Packet Transport Network and device |
| PCT/CN2011/073828 WO2012065409A1 (en) | 2010-11-19 | 2011-05-09 | Method and apparatus for packet transport network protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552605.3A CN102468977B (en) | 2010-11-19 | 2010-11-19 | The guard method of Packet Transport Network and device |
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| CN102468977A true CN102468977A (en) | 2012-05-23 |
| CN102468977B CN102468977B (en) | 2016-03-30 |
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| CN201010552605.3A Expired - Fee Related CN102468977B (en) | 2010-11-19 | 2010-11-19 | The guard method of Packet Transport Network and device |
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| WO (1) | WO2012065409A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916842A (en) * | 2012-11-06 | 2013-02-06 | 烽火通信科技股份有限公司 | Method for implementing PTN (Packet Transport Network) equipment double-returning protection by overlaying various protection modes |
| WO2013185567A1 (en) * | 2012-07-25 | 2013-12-19 | 中兴通讯股份有限公司 | Apparatus and method for protecting and switching packet transport network |
| WO2015139534A1 (en) * | 2014-03-21 | 2015-09-24 | 烽火通信科技股份有限公司 | System, method and apparatus for achieving link-state pass through function based on ptn |
| WO2016177105A1 (en) * | 2015-07-29 | 2016-11-10 | 中兴通讯股份有限公司 | Pseudo-wire dual-homing protection management method and communication device |
| CN111181876A (en) * | 2018-11-12 | 2020-05-19 | 南京机电职业技术学院 | Pseudo wire PW dual-homing protection switching method |
| CN113726645A (en) * | 2021-08-06 | 2021-11-30 | 中盈优创资讯科技有限公司 | STN network link-supplementing service switching method and device |
| WO2022057779A1 (en) * | 2020-09-21 | 2022-03-24 | 华为技术有限公司 | Method, device and system for implementing service path detection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217470A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | Method and device for forwarding message |
| CN101227397A (en) * | 2008-01-28 | 2008-07-23 | 华为技术有限公司 | System, equipment and method for protecting link circuit |
| US20090168783A1 (en) * | 2006-02-24 | 2009-07-02 | Nortel Networks Limited | Multi-Protocol Support Over Ethernet Packet-Switched Networks |
| CN101789879A (en) * | 2009-12-30 | 2010-07-28 | 中兴通讯股份有限公司 | Dynamic maintenance method and device for related link circuits |
-
2010
- 2010-11-19 CN CN201010552605.3A patent/CN102468977B/en not_active Expired - Fee Related
-
2011
- 2011-05-09 WO PCT/CN2011/073828 patent/WO2012065409A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090168783A1 (en) * | 2006-02-24 | 2009-07-02 | Nortel Networks Limited | Multi-Protocol Support Over Ethernet Packet-Switched Networks |
| CN101217470A (en) * | 2007-12-29 | 2008-07-09 | 华为技术有限公司 | Method and device for forwarding message |
| CN101227397A (en) * | 2008-01-28 | 2008-07-23 | 华为技术有限公司 | System, equipment and method for protecting link circuit |
| CN101789879A (en) * | 2009-12-30 | 2010-07-28 | 中兴通讯股份有限公司 | Dynamic maintenance method and device for related link circuits |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185567A1 (en) * | 2012-07-25 | 2013-12-19 | 中兴通讯股份有限公司 | Apparatus and method for protecting and switching packet transport network |
| CN102916842A (en) * | 2012-11-06 | 2013-02-06 | 烽火通信科技股份有限公司 | Method for implementing PTN (Packet Transport Network) equipment double-returning protection by overlaying various protection modes |
| WO2015139534A1 (en) * | 2014-03-21 | 2015-09-24 | 烽火通信科技股份有限公司 | System, method and apparatus for achieving link-state pass through function based on ptn |
| WO2016177105A1 (en) * | 2015-07-29 | 2016-11-10 | 中兴通讯股份有限公司 | Pseudo-wire dual-homing protection management method and communication device |
| CN111181876A (en) * | 2018-11-12 | 2020-05-19 | 南京机电职业技术学院 | Pseudo wire PW dual-homing protection switching method |
| WO2022057779A1 (en) * | 2020-09-21 | 2022-03-24 | 华为技术有限公司 | Method, device and system for implementing service path detection |
| CN113726645A (en) * | 2021-08-06 | 2021-11-30 | 中盈优创资讯科技有限公司 | STN network link-supplementing service switching method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102468977B (en) | 2016-03-30 |
| WO2012065409A1 (en) | 2012-05-24 |
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