CN104270264B - The protection system and method for the access link of STM 1 in PTN device - Google Patents
The protection system and method for the access link of STM 1 in PTN device Download PDFInfo
- Publication number
- CN104270264B CN104270264B CN201410487110.5A CN201410487110A CN104270264B CN 104270264 B CN104270264 B CN 104270264B CN 201410487110 A CN201410487110 A CN 201410487110A CN 104270264 B CN104270264 B CN 104270264B
- Authority
- CN
- China
- Prior art keywords
- stm
- ethernet
- protection
- synchronous transfer
- subelement
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of protection system and method for the access link of STM 1 in PTN device, the STM fields being related in PTN device.The system includes Ethernet OAM monitoring subelement, cross protection subelement, synchronous transfer Ethernet interface and synchronous transfer OAM monitoring subelements；Ethernet OAM monitoring subelement is used for：When monitoring that the out-of-limit FCS_EXC of bad checksum is alerted in Ethernet connection dropout LINK_LOS alarms or media intervention key-course mac frame, triggering cross protection subelement starts MSP protection mechanisms；Synchronous transfer OAM monitoring subelements are used for：Monitor Ethernet alarm and multiplex section fault indication signal MS ais alarms are inserted into the frames of STM 1.The present invention can when the link of Ethernet interface breaks down automatic start MSP protection mechanisms, can not only save human resources, improve operating efficiency, and response speed is very fast, is not easily caused a large number of services interruption.
Description
Technical field
The present invention relates to the STM fields in PTN device, and in particular to the protection of STM-1 access link in a kind of PTN device
System and method.
Background technology
PTN (Packet Transport Network, Packet Transport Network) technology is that a new generation based on packet kernel is more
Business tranmission techniques, PTN network can provide a variety of UNI (User Network Interface), such as based on SDH (Synchronous
Digital Hierarchy, SDH) technology STM-1 (STM-Synchronous Transfer Module, speed
Rate 155.520Mbps synchronous transfer mode) interface.STM-1 interfaces are by emulation technology, by traditional TDM (time division multiplexing moulds
Formula) service access is into PTN network.To increase the stability of STM-1 access link, China Mobile's company standard requirement
STM-1 interfaces should provide the protective capability for supporting MSP (multiplex section protection).
The linear MSP switchover modes of SDH of PTN reference GB/T the 11.1st article of institute's specification of 15941-2008, to STM-N
(Synchronous Transport Module level n, n levels synchronous transfer mode) access link is protected；MSP is certainly
It is dynamic start criterion defined trigger condition be：LOS (dropout), LOF (LOF), MS-AIS (multiplex section indicating fault
Signal), dEXC (multiplex section Signal Fail) and dDEG (multiplex section Signal Degrade).
Shown in Figure 1, the PTN device of PTN network includes STM-1 interface units and cross protection unit, because STM-1
By CES (Circuit Emulation Service, circuit simulation), technology accesses to PTN network to interface business, so STM-
2 kinds of interfaces in PTN device be present in 1 interface unit：1st, user oriented STM-1 interfaces, 2, access to PTN network (intersect protect
Protect unit) Ethernet interface.PTN business is transmitted to before another a kind of interface circuit from a kind of interface circuit, the OAM of PTN business
(Operation Administration and Maintenance, operation, management and maintenance) information can terminate.
In MSP automatic start criterions, monitor that the multiplex section in STM-1 frames alerts just meeting due to STM-1 access link
Starting protection is switched, therefore when the triggering of MSP automatic start criterion defineds occurs in ethernet link layer (cross protection unit)
During failure outside condition, all business in STM-1 interfaces all break down.But when ethernet link layer breaks down
When, the OAM Information of Ethernet can not be transferred to STM-1 multiplex sections, so the multiplex section in STM-1 frames can not alert, and then make
Obtaining MSP protection mechanisms can not start.
In the case of MSP protection mechanisms, existing solution is manually to be switched from outside starting protection.But people
Work starting protection, which is switched, needs operating personnel to carry out direct surveillance to ethernet link layer in real time, not only wastes substantial amounts of manpower
Resource, operating efficiency is relatively low, and the response speed of direct surveillance is slower, and then causes a large number of services to interrupt, and is not easy to people
Use.
The content of the invention
For defect present in prior art, it is an object of the invention to provide STM-1 in a kind of PTN device to access chain
The protection system and method on road.The present invention can Ethernet interface link break down when automatic start MSP protection mechanisms,
Substantial amounts of human resources can not only be saved, improve operating efficiency, and response speed is very fast, is not easily caused in a large number of services
It is disconnected, it is easy to people to use.
To achieve the above objectives, the present invention provides a kind of protection system of STM-1 access link in PTN device, including hands over
Pitch protection location, speed 155.520Mbps synchronous transfer mode STM-1 interface units and remote equipment；The cross protection
Unit includes the cross protection Ethernet interface that is sequentially connected, OAM monitoring subelements are safeguarded in Ethernet operation management and intersects and protects
Protect subelement；The STM-1 interface units include sequentially end to end synchronous transfer Ethernet interface, STM-1 interfaces and same
Step transmission OAM monitoring subelements；Synchronous transfer Ethernet interface is connected with cross protection Ethernet interface, STM-1 interfaces and remote
End equipment is connected；
The cross protection Ethernet interface is used for：Receive the STM-1 business of synchronous transfer Ethernet interface transmission.
The Ethernet OAM monitoring subelement is used for：Monitor Ethernet connection dropout LINK_LOS alarms or
When the out-of-limit FCS_EXC of bad checksum is alerted in media intervention key-course mac frame, pass through APS APS and trigger intersection
Protect subelement；
The cross protection subelement is used for：Start multiplex section protection MSP protection mechanisms；
The STM-1 interfaces are used for：STM-1 interfaces are provided to remote equipment；
The synchronous transfer Ethernet interface is used for：By STM-1 service accesses to cross protection Ethernet interface；
The synchronous transfer OAM monitorings subelement is used for：Monitoring Ethernet alerts and inserts multiplex section into STM-1 frames
Fault indication signal MS-AIS is alerted.
On the basis of above-mentioned technical proposal, the protection system is protected to STM-1 access link in PTN device
When, determine that the signal of current business flows to：
If the signal flow direction of current business is up direction, STM-1 business passes sequentially through synchronous transfer Ethernet interface, handed over
Fork protection Ethernet interface accesses to PTN network；When the Ethernet OAM monitoring subelement in cross protection unit monitors
When the out-of-limit FCS_EXC of bad checksum is alerted in LINK_LOS alarms or mac frame, pass through APS and trigger cross protection subelement
Start MSP protection mechanisms；
If the signal flow direction of current business is down direction, when the synchronous transfer OAM of STM-1 interface units monitors subelement
When monitoring Ethernet alarm, synchronous transfer OAM monitoring subelements insert MS-AIS alarms in STM-1 frames.Remote equipment is supervised
When measuring MS-AIS alarms, automatic start MSP protection mechanisms；Or when synchronous transfer OAM monitoring of STM-1 interface units are single
When member monitors Ethernet alarm, synchronous transfer OAM monitors subelement by the APS path K2 bytes in STM-1 frames
The 6th, 7,8 bits be disposed as 1；Remote equipment receive K2 the 6th, 7,8 bits are when being 1, automatic start MSP protection machines
System.
The present invention also provides a kind of guard method of STM-1 access link in PTN device based on above-mentioned protection system, bag
Include following steps：
A, the signal flow direction of current business is determined, if the signal flow direction of current business is up direction, goes to step B, if
The signal flow direction of current business is down direction, goes to step C；
B, STM-1 business passes sequentially through synchronous transfer Ethernet interface, cross protection Ethernet interface accesses to PTN nets
Network；When in cross protection unit Ethernet OAM monitoring subelement monitor LINK_LOS alarm or mac frame in verification and
When the out-of-limit FCS_EXC that malfunctions is alerted, pass through APS and trigger cross protection subelement startup MSP protection mechanisms；
C, when the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor Ethernet alarm, synchronous transfer
OAM monitoring subelements insert MS-AIS alarms in STM-1 frames.When remote equipment monitors MS-AIS alarms, automatic start MSP
Protection mechanism；
Or when the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor Ethernet alarm, synchronous transfer
The 6th of APS path K2 bytes in STM-1 frames, 7,8 bits are disposed as 1 by OAM monitoring subelements；Distal end is set
It is standby receive K2 the 6th, 7,8 bits are when being 1, automatic start MSP protection mechanisms.
On the basis of above-mentioned technical proposal, automatic start MSP protection mechanisms described in step C comprises the following steps：Root
According to the linear MSP switchover modes of SDH and MSP automatic start criterions of the 11.1st article of institute's specification of GB/T 15941-2008, automatic start
MSP protection mechanisms.
On the basis of above-mentioned technical proposal, the alarm of Ethernet described in step C includes LINK_LOS alarms or mac frame
The middle out-of-limit FCS_EXC alarms of bad checksum.
Compared with prior art, the advantage of the invention is that：
(1) when ethernet link layer (the synchronous transfer Ethernet interface of STM-1 interface units) monitors dropout,
Or when can not be properly received the negotiation code stream matched with local terminal (STM-1 interface units), local terminal can produce LINK_LOS alarms.
When LINK_LOS alarms occur, the business of all STM-1 interfaces alerts with PTN device interface, the SDH lines with specification
Property LOS, LOF for occurring in STM-1 frames as defined in MSP switchover modes it is consistent with MS-AIS alarm results.
Therefore, for the present invention when signal flow direction is up direction, Ethernet OAM monitoring subelement can monitor LINK_LOS
Alarm, or the out-of-limit FCS_EXC of bad checksum is alerted and is passed through APS triggering cross protection subelement startups MSP in mac frame
Protection mechanism.Occurs the event outside the trigger condition of MSP automatic start criterion defineds with ethernet link layer in the prior art
Need to manually start pretection switch during barrier and compare, the present invention, can be in Ethernet when the signal flow direction of business is up direction
Automatic start MSP protection mechanisms when the link of interface breaks down, substantial amounts of human resources can not only be saved, improve work effect
Rate, and response speed is very fast, is not easily caused a large number of services interruption, is easy to people to use.
(2) present invention business signal flow direction be down direction when, synchronous transfer OAM monitor subelement can monitor with
Too net is alerted and alerted toward insertion MS-AIS in STM-1 frames；When remote equipment monitors MS-AIS alarms, according to GB/T
The linear MSP switchover modes of SDH and MSP automatic start criterions of the 11.1st article of institute's specification of 15941-2008, automatic start MSP protections
Mechanism.
When synchronous transfer OAM monitoring subelements monitor Ethernet alarm, additionally it is possible to by the of the K2 bytes in STM-1 frames
6th, 7,8 bits are disposed as " 1 "；Remote equipment receive K2 the 6th, 7,8 bits are when being " 1 ", according to GB/T 15941-2008
The linear MSP switchover modes of SDH and MSP automatic start criterions of 11.1st article of institute's specification, automatic start MSP protection mechanisms.
Therefore, the present invention, can be when the link of Ethernet interface breaks down certainly when signal flow direction is down direction
It is dynamic to start MSP protection mechanisms, substantial amounts of human resources can not only be saved, improve operating efficiency, and also response speed is very fast, no
A large number of services interruption is easily caused, is easy to people to use.
Brief description of the drawings
Fig. 1 is the structured flowchart of the protection system of STM-1 access link in PTN device in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 1, the protection system of STM-1 access link in the PTN device in the embodiment of the present invention, including intersect
Protection location, STM-1 interface units and remote equipment.
Cross protection unit includes the cross protection Ethernet interface, Ethernet OAM monitoring subelement and friendship being sequentially connected
Fork protection subelement；STM-1 interface units include sequentially end to end synchronous transfer Ethernet interface, STM-1 interfaces and same
Step transmission OAM monitoring subelements；Synchronous transfer Ethernet interface is connected with cross protection Ethernet interface, STM-1 interfaces and remote
End equipment is connected.
Cross protection Ethernet interface is used for：Receive the STM-1 business of synchronous transfer Ethernet interface transmission.
Ethernet OAM monitoring subelement is used for：Monitor LINK_LOS (Ethernet connection dropout) alarms or MAC
When verification and FCS_EXC (error is out-of-limit) are alerted in (Media Access Control, media intervention key-course) frame, pass through
APS (Automatic Protection Switched, APS) triggers cross protection subelement.
Cross protection subelement is used for：Start MSP (multiplex section protection) protection mechanism.
STM-1 interfaces are used for：STM-1 interfaces are provided to remote equipment.
Synchronous transfer Ethernet interface is used for：By STM-1 service accesses to cross protection Ethernet interface.
Synchronous transfer OAM monitoring subelements are used for：Monitor Ethernet alarm and MS-AIS (multiplexings are inserted into STM-1 frames
Segment fault indication signal) alarm.
The guard method of STM-1 access link in the PTN device based on said system in the embodiment of the present invention, including with
Lower step：
S1：The signal flow direction of current business is determined, if the signal flow direction of current business is up direction, goes to step S2,
If the signal flow direction of current business is down direction, step S3 is gone to.
S2：STM-1 business passes sequentially through synchronous transfer Ethernet interface, cross protection Ethernet interface accesses to PTN nets
Network.When in cross protection unit Ethernet OAM monitoring subelement monitor LINK_LOS alarm or mac frame in verification and
When the out-of-limit FCS_EXC that malfunctions is alerted, pass through APS and trigger cross protection subelement startup MSP protection mechanisms.
S3：When the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor Ethernet alarm, synchronous transfer
OAM monitoring subelements insert MS-AIS alarms in STM-1 frames.When remote equipment monitors MS-AIS alarms, according to GB/T
The linear MSP switchover modes of SDH and MSP automatic start criterions of the 11.1st article of institute's specification of 15941-2008, automatic start MSP protections
Mechanism.
Step S3 can also be：When the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor that Ethernet alerts
When, synchronous transfer OAM monitors subelement by the 6th, 7,8 ratios of the K2 bytes (APS path byte) in STM-1 frames
Spy is disposed as " 1 ".Remote equipment receive K2 the 6th, 7,8 bits are when being " 1 ", according to GB/T 15941-2008 the 11.1st
The linear MSP switchover modes of SDH and MSP automatic start criterions of bar institute specification, automatic start MSP protection mechanisms.
Ethernet alarm in step S3 includes the out-of-limit FCS_EXC of bad checksum in LINK_LOS alarms or mac frame
Alarm.
The operation principle of the present invention is as follows：
When ethernet link layer (the synchronous transfer Ethernet interface of STM-1 interface units) monitors dropout or
When person can not be properly received the negotiation code stream matched with local terminal (STM-1 interface units), local terminal can produce LINK_LOS alarms.
When LINK_LOS alarms occur, the business of all STM-1 interfaces alerts with PTN device interface, the SDH lines with specification
Property LOS, LOF for occurring in STM-1 frames as defined in MSP switchover modes it is consistent with MS-AIS alarm results.
When the error amount of verification sequence (FCS) in the mac frame of Ethernet, which reaches user, sets thresholding, local terminal can produce
Wrong out-of-limit FCS_EXC alarms.FCS is used to monitor mac frame error condition in transmitting procedure, the synchronous biography of STM-1 interface units
When defeated Ethernet interface monitors FCS errors, show that this frame damages in transmitting procedure；The error code that FCS malfunctions with multiplex section
Can be similar, can it cause business to be damaged.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (5)
1. the protection system of STM-1 access link in a kind of PTN device, including cross protection unit, speed 155.520Mbps
Synchronous transfer mode STM-1 interface units and remote equipment；The cross protection unit include the cross protection that is sequentially connected with
Too OAM monitoring subelements and cross protection subelement are safeguarded in network interface, Ethernet operation management；The STM-1 interface units bag
Include sequentially end to end synchronous transfer Ethernet interface, STM-1 interfaces and synchronous transfer OAM monitoring subelements；Synchronous transfer
Ethernet interface is connected with cross protection Ethernet interface, and STM-1 interfaces are connected with remote equipment；It is characterized in that：
The cross protection Ethernet interface is used for：Receive the STM-1 business of synchronous transfer Ethernet interface transmission；
The Ethernet OAM monitoring subelement is used for：Monitor Ethernet connection dropout LINK_LOS alarms or media
When the out-of-limit FCS_EXC of bad checksum is alerted in intervention key-course mac frame, pass through APS APS and trigger cross protection
Subelement；
The cross protection subelement is used for：Start multiplex section protection MSP protection mechanisms；
The STM-1 interfaces are used for：STM-1 interfaces are provided to remote equipment；
The synchronous transfer Ethernet interface is used for：By STM-1 service accesses to cross protection Ethernet interface；
The synchronous transfer OAM monitorings subelement is used for：Monitor Ethernet alarm and the insertion multiplexing segment fault into STM-1 frames
Indication signal MS-AIS is alerted.
2. the protection system of STM-1 access link in PTN device as claimed in claim 1, it is characterised in that：The protection system
Unite to when STM-1 access link is protected in PTN device, determining that the signal of current business flows to：
If the signal flow direction of current business is up direction, STM-1 business passes sequentially through synchronous transfer Ethernet interface, intersects and protect
Shield Ethernet interface accesses to PTN network；When the Ethernet OAM monitoring subelement in cross protection unit monitors LINK_LOS
When the out-of-limit FCS_EXC of bad checksum is alerted in alarm or mac frame, pass through APS and trigger cross protection subelement startup MSP
Protection mechanism；
If the signal flow direction of current business is down direction, when the synchronous transfer OAM monitoring subelement monitorings of STM-1 interface units
When being alerted to Ethernet, synchronous transfer OAM monitoring subelements insert MS-AIS alarms in STM-1 frames；Remote equipment monitors
When MS-AIS is alerted, automatic start MSP protection mechanisms；Or the synchronous transfer OAM monitoring subelement prisons when STM-1 interface units
When measuring Ethernet alarm, synchronous transfer OAM monitors subelement by the of the APS path K2 bytes in STM-1 frames
6th, 7,8 bits are disposed as 1；Remote equipment receive K2 the 6th, 7,8 bits are when being 1, automatic start MSP protection mechanisms.
3. the guard method of STM-1 access link in a kind of PTN device based on the protection system of claim 1 or 2, it is special
Sign is, comprises the following steps：
A, the signal flow direction of current business is determined, if the signal flow direction of current business is up direction, step B is gone to, if currently
The signal flow direction of business is down direction, goes to step C；
B, STM-1 business passes sequentially through synchronous transfer Ethernet interface, cross protection Ethernet interface accesses to PTN network；When
Ethernet OAM monitoring subelement in cross protection unit monitors that bad checksum is got in LINK_LOS alarms or mac frame
When limiting FCS_EXC alarms, cross protection subelement is triggered by APS and starts MSP protection mechanisms；
C, when the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor Ethernet alarm, synchronous transfer OAM prisons
Survey subelement and MS-AIS alarms are inserted in STM-1 frames；When remote equipment monitors MS-AIS alarms, automatic start MSP protections
Mechanism；
Or when the synchronous transfer OAM monitoring subelements of STM-1 interface units monitor Ethernet alarm, synchronous transfer OAM
The 6th of APS path K2 bytes in STM-1 frames, 7,8 bits are disposed as 1 by monitoring subelement；Remote equipment
Receive K2 the 6th, 7,8 bits are when being 1, automatic start MSP protection mechanisms.
4. the guard method of STM-1 access link in the PTN device of system is protected as claimed in claim 3, it is characterised in that：Step
Automatic start MSP protection mechanisms comprise the following steps described in rapid C：According to the 11.1st article of institute's specification of GB/T 15941-2008
The linear MSP switchover modes of SDH and MSP automatic start criterions, automatic start MSP protection mechanisms.
5. the guard method of STM-1 access link in the PTN device of protection system as described in claim 3 or 4, its feature exist
In：The alarm of Ethernet described in step C includes the out-of-limit FCS_EXC alarms of bad checksum in LINK_LOS alarms or mac frame.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487110.5A CN104270264B (en) | 2014-09-22 | 2014-09-22 | The protection system and method for the access link of STM 1 in PTN device |
| PCT/CN2015/089934 WO2016045538A1 (en) | 2014-09-22 | 2015-09-18 | Stm-1 access link protection system and method in ptn device |
| RU2016146785A RU2660608C1 (en) | 2014-09-22 | 2015-09-18 | System and method for protecting stm-1 access channel in ptn equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487110.5A CN104270264B (en) | 2014-09-22 | 2014-09-22 | The protection system and method for the access link of STM 1 in PTN device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104270264A CN104270264A (en) | 2015-01-07 |
| CN104270264B true CN104270264B (en) | 2017-12-29 |
Family
ID=52161758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410487110.5A Active CN104270264B (en) | 2014-09-22 | 2014-09-22 | The protection system and method for the access link of STM 1 in PTN device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104270264B (en) |
| RU (1) | RU2660608C1 (en) |
| WO (1) | WO2016045538A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270264B (en) * | 2014-09-22 | 2017-12-29 | 烽火通信科技股份有限公司 | The protection system and method for the access link of STM 1 in PTN device |
| CN106034043B (en) * | 2015-03-18 | 2020-01-07 | 中兴通讯股份有限公司 | Method and device for improving multiplex section switching frequency in packet transport network |
| CN109104647B (en) * | 2018-06-14 | 2021-06-15 | 烽火通信科技股份有限公司 | Ethernet service interrupt processing method, system and networking system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667973A (en) * | 2009-10-23 | 2010-03-10 | 烽火通信科技股份有限公司 | T-MPLS device model and layering encapsulating method |
| CN101917225A (en) * | 2010-08-04 | 2010-12-15 | 烽火通信科技股份有限公司 | Method for realizing inter-disc STM-1 interface automatic protection switching in gigabit-capable passive optical network (GPON) system |
| CN202713353U (en) * | 2012-08-29 | 2013-01-30 | 中国移动通信集团公司 | Packet transport network device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060098660A1 (en) * | 2004-11-10 | 2006-05-11 | Rajesh Pal | Mechanism for automatic protection switching and apparatus utilizing same |
| CN104270264B (en) * | 2014-09-22 | 2017-12-29 | 烽火通信科技股份有限公司 | The protection system and method for the access link of STM 1 in PTN device |
-
2014
- 2014-09-22 CN CN201410487110.5A patent/CN104270264B/en active Active
-
2015
- 2015-09-18 RU RU2016146785A patent/RU2660608C1/en active
- 2015-09-18 WO PCT/CN2015/089934 patent/WO2016045538A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667973A (en) * | 2009-10-23 | 2010-03-10 | 烽火通信科技股份有限公司 | T-MPLS device model and layering encapsulating method |
| CN101917225A (en) * | 2010-08-04 | 2010-12-15 | 烽火通信科技股份有限公司 | Method for realizing inter-disc STM-1 interface automatic protection switching in gigabit-capable passive optical network (GPON) system |
| CN202713353U (en) * | 2012-08-29 | 2013-01-30 | 中国移动通信集团公司 | Packet transport network device |
Non-Patent Citations (1)
| Title |
|---|
| 同步数字体系（SDH）光缆线路系统进网要求;中国国家标准化管理委员会;《中华人民共和国国家标准》;20080410;第11.1节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2660608C1 (en) | 2018-07-06 |
| CN104270264A (en) | 2015-01-07 |
| WO2016045538A1 (en) | 2016-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102006218B (en) | Tunnel protection method and device | |
| US20070133564A1 (en) | Method for propagating maintenance signal in VPWS network using SDH/SONET | |
| CN102088387B (en) | Tunnel protection method and device of ring network | |
| CN101854255A (en) | Method and system for protecting multiplex section in packet transport network | |
| WO2015192518A1 (en) | Error detection method, apparatus and system for potn | |
| CN104270264B (en) | The protection system and method for the access link of STM 1 in PTN device | |
| CN102611499B (en) | Method for realizing ODUK (Optical Channel Data Unit) protection switching by crossed disc of OTN (Optical Transport Network) equipment | |
| US10601537B2 (en) | Fault propagation in segmented protection | |
| CN101908983B (en) | Joint detection method and system for Ethernet local segment protection | |
| CN104158586B (en) | Switching realization method, sites and system | |
| CN101425971B (en) | T-MPLS path layer tunnel switching method | |
| CN106033994B (en) | A kind of optical transmission method, device and optical transmission device | |
| JPH04154229A (en) | To-station directed alarm communication method by asynchronous three-dimensional group signal | |
| CN104426700B (en) | The method of network element and looped network protection | |
| CN101997747A (en) | Method and device for announcing fault LSP information | |
| CN103780423B (en) | The online method for changing alarm threshold, device and data transmission network | |
| JP6017042B2 (en) | Single optical fiber fault handling method and apparatus | |
| CN102843260B (en) | Channel protection method of looped network system with IP RAN (Internet Protocol-Radio Access Network) forward compatible with MSTP (Multi-Service Transport Platform) | |
| Cisco | Chapter 7, Card Provisioning | |
| Cisco | Chapter 7, Card Provisioning | |
| Cisco | Chapter 7, Card Provisioning | |
| Cisco | Chapter 8, Card Provisioning | |
| Cisco | Chapter 5, Provisioning Cards | |
| GB2423447A (en) | Notification of faults in a system comprising two Ethernet networks interconnected by a synchronous transport network such as SDH | |
| CN104283692B (en) | PTN rings circuit breaking protective system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |