CN113873360A - System and method for improving VC protection efficiency carried in OTN - Google Patents
System and method for improving VC protection efficiency carried in OTN Download PDFInfo
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- CN113873360A CN113873360A CN202111082072.1A CN202111082072A CN113873360A CN 113873360 A CN113873360 A CN 113873360A CN 202111082072 A CN202111082072 A CN 202111082072A CN 113873360 A CN113873360 A CN 113873360A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
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Abstract
The invention discloses a system and a method for improving VC protection efficiency carried in an OTN, relating to the technical field of communication, wherein the protection domain configured as ODUk1+1 is mapped to an MSP1+1 protection domain of a VSDH interface based on VC, and ODUk protection can be mapped to all SDH protection domains under the ODUk only by configuring one ODUk protection. When an ODUk layer fails, all VC particles under the ODUk are switched at the same time. The switching time can be optimized to 5-8 ms. Only one protection needs to be configured and only one protection state needs to be inquired correspondingly, so that the maintenance efficiency is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a system and a method for improving VC protection efficiency carried in an OTN.
Background
With the demand of the communication industry for a unified platform, the OTN device not only needs to implement cross scheduling of ODUk, but also adds packet-based scheduling of data services and VC-based scheduling of SDH. Each cross scheduling granule has a corresponding switching mode, for example, a scheduling support PW1+1/LSP1+1 of a data service based on a packet corresponds to a PW layer and an LSP layer, respectively, and a scheduling support VC SNCP (subnet connection Protection of VC granules)/LMSP 1+1(Linear Multiplexing Section Protection) of an SSDH (Synchronous Digital Hierarchy) based on VC granules corresponds to a VC and a Multiplexing Section, respectively. When the particles are in an ODUk channel, the particle-division switching is well-defined and intuitive, but the problems of low efficiency, high maintenance and management requirements and the like are also solved. If the switching based on the ODUk1+1 is configured, only one protection needs to be configured, and when the ODUk fails, all VC particles in the pipeline are switched at the same time, the method can improve the protection efficiency, and meanwhile, a maintainer only needs to check the protection state of the ODUk, which also conforms to the habit of an OTN device maintainer.
However, to implement scheduling based on VC particles, the unified switching system will complete the intersection of VC4 first, and then complete the mapping of VC4- > STM-n (Synchronous transport Module-n) - > ODUk- > OTUk in the line interface Module, and the alarm detection of ODUk is at the later stage of VC scheduling, so in the existing design, the ODUk cannot trigger the protection of VC 4. Therefore, a technical scheme that the protection processing of the ODUk1+1 is mapped into the VC processing domain and VC4 protection is triggered by the ODUk alarm is needed.
Disclosure of Invention
To overcome the defects in the prior art, a first aspect of the present invention provides a system and a method for improving VC protection efficiency carried in an OTN, where an ODUk1+1 protection configuration is mapped to a VC protection processing domain, and VC4 protection is triggered by an ODUk alarm.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a system for improving the efficiency of VC protection carried in an OTN, comprising:
an ODUk1+1 protection configuration module to: storing ODUk1+1 protection configuration information during ODUk protection group establishment;
a VSDH and ODUk correspondence table for: storing the corresponding relation between the VSDH interface and the ODUk interface;
a protection mapping module to: when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
an SDH cross configuration module for: storing cross configuration information of MSP main VSDH;
a multicast configuration module to: generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, and sending the multicast data to a cross processing module, wherein the multicast data comprises configured source node information, host node information and host standby node information;
an ODUk protection triggering module configured to: collecting ODUk alarm, and outputting a switching control command to a cross processing module;
a cross-processing module to: and simultaneously issuing a switching control command to all MSP protections mapped to the ODUk according to the multicast data and executing switching.
In some embodiments, the ODUk1+1 protection configuration information includes slot and port information of a primary/spare ODUk in an ODUk protection group.
In some embodiments, the cross configuration information includes a cross scheduling relationship of an SDH interface or a VSDH interface.
In some embodiments, the protection mapping module is specifically configured to:
if the ODUk1+1 protection configuration is received, searching whether VSDH interface information matched with the ODUk main interface information exists in a VSDH and ODUk corresponding table, if yes, searching spare ODUk interface information according to the ODUk1+1 protection configuration information, and searching VSDH interface information corresponding to the spare ODUk interface information in the VSDH and ODUk corresponding table; if not, returning;
if the received VSDH interface configuration is the VSDH and ODUk corresponding table, whether an ODUk interface matched with the VSDH interface information exists in the VSDH and ODUk corresponding table is searched, whether the ODUk interface has main ODUk interface information of ODU1+1 or not is obtained according to the ODUk protection configuration information, if yes, spare ODUk interface information is found according to the ODUk1+1 protection configuration information, and VSDH interface information corresponding to the spare ODUk interface information is searched in the VSDH and ODUk corresponding table; and if not, returning.
In some embodiments, the ODUk protection triggering module is specifically configured to:
collecting ODUk alarm, outputting alarm according to OTN switching rule, and outputting switching control command to cross processing module according to APS protocol state.
A second aspect of the present invention provides a system and a method for improving VC protection efficiency carried in an OTN, where an ODUk1+1 protection configuration is mapped to a VC protection processing domain, and VC4 protection is triggered by an ODUk alarm.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a method for improving VC protection efficiency carried in OTN includes the following steps:
storing ODUk1+1 protection configuration information during ODUk protection group establishment; establishing a VSDH and ODUk corresponding table, and storing the corresponding relation of the VSDH interface and the ODUk interface in the VSDH and ODUk corresponding table;
when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
searching cross configuration information of VSDH used by MSP, and generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, wherein the multicast data comprises configured source node information, host node information and host standby node information;
collecting ODUk alarm, generating switching control command, sending switching control command to all MSP protection mapped to the ODUk according to the multicast data and executing switching.
In some embodiments, the ODUk1+1 protection configuration information includes slot and port information of a primary/spare ODUk in an ODUk protection group.
In some embodiments, the cross configuration information includes a cross scheduling relationship of an SDH interface or a VSDH interface.
In some embodiments, when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk correspondence table and ODUk1+1 protection configuration information, and obtaining primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for the spare ODUk interface information and the corresponding spare VSDH interface information, specifically comprising the following steps:
if the ODUk1+1 protection configuration is received, searching whether VSDH interface information matched with the ODUk main interface information exists in a VSDH and ODUk corresponding table, if yes, searching spare ODUk interface information according to the ODUk1+1 protection configuration information, and searching VSDH interface information corresponding to the spare ODUk interface information in the VSDH and ODUk corresponding table; if not, returning;
if the received VSDH interface configuration is the VSDH and ODUk corresponding table, whether an ODUk interface matched with the VSDH interface information exists in the VSDH and ODUk corresponding table is searched, whether the ODUk interface has main ODUk interface information of ODU1+1 or not is obtained according to the ODUk protection configuration information, if yes, spare ODUk interface information is found according to the ODUk1+1 protection configuration information, and VSDH interface information corresponding to the spare ODUk interface information is searched in the VSDH and ODUk corresponding table; and if not, returning.
In some embodiments, acquiring an ODUk alarm and generating a switching control command specifically includes the following steps:
collecting ODUk alarm, outputting alarm according to OTN switching rule, and generating switching control command according to APS protocol state.
Compared with the prior art, the invention has the advantages that:
the invention only needs to configure one ODUk protection, and the ODUk protection can be mapped to all SDH protection domains under the ODUk. When an ODUk layer fails, all VC particles under the ODUk are switched at the same time. The switching time can be optimized to 5-8 ms. Only one protection needs to be configured and only one protection state needs to be inquired correspondingly, so that the maintenance efficiency is improved.
Drawings
Fig. 1 is a block diagram of a structure of protection of a VC bearer at ODU1+1 according to an embodiment of the present invention;
fig. 2 is a system structure diagram of protection of a VC bearer at ODU1+1 according to the embodiment of the present invention;
fig. 3 is a flowchart of configuration processing for mapping ODUk1+1 to a VC processing domain according to the embodiment of the present invention;
fig. 4 is a diagram of an actual application of VC bearer protection at ODU1+1 according to the embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, a VSDH (virtual SDH) interface is defined in the line interface unit, and the ODUk1+1 configuration can be mapped into the protection of MSP1+1 of the VSDH interface through a software algorithm. The core of the embodiment of the invention is to design a set of algorithm, in a unified platform using VC as scheduling particles, a protection domain configured as ODUk1+1 is mapped to an MSP1+1 protection domain of a VSDH interface based on VC, a plurality of MSP protections can be provided under one ODUk, the protection of a service in a protection triggering pipeline configured with a large pipeline can improve the efficiency of protection configuration, state query and protection switching.
Referring to fig. 2, an embodiment of the present invention provides a system for improving VC protection efficiency carried in an OTN, including:
an ODUk1+1 protection configuration module to: storing ODUk1+1 protection configuration information during ODUk protection group establishment; the ODUk1+1 protection configuration information includes slot and port information of a main/spare ODUk in the ODUk protection group.
A VSDH and ODUk correspondence table for: storing the corresponding relation between the VSDH interface and the ODUk interface;
a protection mapping module to: when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
an SDH cross configuration module for: storing cross configuration information of MSP main VSDH; the cross configuration information includes a cross scheduling relationship of an SDH interface or a VSDH interface.
A multicast configuration module to: generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, and sending the multicast data to a cross processing module, wherein the multicast data comprises configured source node information, host node information and host standby node information; these information are sent to the cross processing module to form the important data flow relation of concurrent transmission and selective reception in protection.
In the configuration process, the configuration of the VC over ODUk is formed, and the mapping of the protection domain of the OTN to the SDH protection domain is completed.
An ODUk protection triggering module configured to: collecting ODUk alarm, outputting alarm according to OTN switching rule, and outputting switching control command to cross processing module according to APS protocol state.
A cross-processing module to: and simultaneously issuing a switching control command to all MSP protections mapped to the ODUk according to the multicast data and executing switching.
Compared with single configuration MSP protection or VC SNCP protection, the simultaneous switching efficiency of the embodiment of the invention is higher. When checking the switching state, the maintainer only needs to check a group of corresponding protection states in the OTN protection state block. The switching efficiency of the equipment is improved, and the pressure of operation and maintenance is relieved.
Preferably, the protection mapping module is specifically configured to:
if the ODUk1+1 protection configuration is received, searching whether VSDH interface information matched with the ODUk main interface information exists in a VSDH and ODUk corresponding table, if yes, searching spare ODUk interface information according to the ODUk1+1 protection configuration information, and searching VSDH interface information corresponding to the spare ODUk interface information in the VSDH and ODUk corresponding table; if not, returning;
if the received VSDH interface configuration is the VSDH and ODUk corresponding table, whether an ODUk interface matched with the VSDH interface information exists in the VSDH and ODUk corresponding table is searched, whether the ODUk interface has main ODUk interface information of ODU1+1 or not is obtained according to the ODUk protection configuration information, if yes, spare ODUk interface information is found according to the ODUk1+1 protection configuration information, and VSDH interface information corresponding to the spare ODUk interface information is searched in the VSDH and ODUk corresponding table; and if not, returning.
Referring to fig. 3, an embodiment of the present invention further provides a method for improving VC protection efficiency carried in an OTN, including the following steps:
storing ODUk1+1 protection configuration information during ODUk protection group establishment; establishing a VSDH and ODUk corresponding table, and storing the corresponding relation of the VSDH interface and the ODUk interface in the VSDH and ODUk corresponding table;
when receiving a VSDH interface configuration or an ODUk1+ 1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
searching cross configuration information of VSDH used by MSP, and generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, wherein the multicast data comprises configured source node information, host node information and host standby node information;
collecting ODUk alarm, generating switching control command, sending switching control command to all MSP protection mapped to the ODUk according to the multicast data and executing switching.
Preferably, the ODUk1+1 protection configuration information includes slot and port information of a main/spare ODUk in the ODUk protection group.
Preferably, the cross configuration information includes a cross scheduling relationship of an SDH interface or a VSDH interface.
Step 101: receiving a VSDH interface configuration or an ODUk1+ 1 protection configuration;
step 102: a corresponding relationship is searched in a VSDH and ODUk corresponding table defined in fig. 2, the corresponding table is generated and managed by upper management software of the system, and the content is a linked list describing the corresponding relationship between the VSDHid number and the ODUk interface.
Step 103: if the ODUk1+1 protection is received, the management software searches whether VSDH interface information matched with the ODUk main interface exists through searching the corresponding relation table, and if so, the step 104 is executed; and if not, returning to the step 101, and executing other operations according to an ODUk1+ 1 protection based on ODUk crossing.
If the received information is a VSDH interface configuration information, the management software searches the ODUk interface matched with the VSDH interface through searching the corresponding relationship table, and finds whether the ODUk interface has a primary ODUk of the ODU1+1 in the ODUk protection configuration, if so, the process goes to step 104; if not, the step 101 is returned to, which indicates that the VSDH interface is not protected.
The two steps are judgment and selection of two scenes, and in actual operation, the sequence of ODUk1+1 protection and the VSDH interface is not limited, so that both cases need to be considered. The effect is that if it is determined that it is one of the above scenarios, step 104 is continued.
Step 104: and finding a spare ODUk interface in the ODUk1+1 protection configuration module. When the VSDH is created, the management software stores the corresponding relationship between the ODUk and the VSDH interface when the VSDH is created, so that the VSDH interface information corresponding to the spare ODUk can be found in the corresponding table at this time.
Step 105: after the two steps are executed, the interface information of the main VSDH and the standby VSDH is searched, and new MSP1+1 protection configuration data based on the VSDH interfaces are generated according to the information management software and issued.
Step 106: the management software searches the cross configuration of the VSDH in MSP, combines the protection configuration data of MSP to form multicast data, the multicast data group describes the source node information, the host node information and the host standby node information of the data, and the information reaches the cross processing module to form the important data flow relation of concurrent selective reception in protection.
When an ODUk1+ 1 protection condition occurs, the ODUk protection triggering module determines to issue a switching command according to the protection processing standard of the OTN, and all MSP protections mapped to the ODUk receive the switching command and switch at the same time.
Compared with single configuration MSP protection or VC SNCP protection, the switching efficiency is higher. When checking the switching state, the maintainer only needs to check a group of corresponding protection states in the OTN protection state block. The switching efficiency of the equipment is improved, and the pressure of operation and maintenance is relieved.
Fig. 4 illustrates a specific application scenario model, in practical application, an OCH docking side is defined as an NNI interface, and a service access side is defined as a UNI interface.
The scenario of fig. 4 is a point-to-point application scenario, requiring electrical interleaving to be VC 4-based interleaving of particles. The UNI side can select one of three modes of VC SNCP protection/MSP protection/no-protection mode through upper management software according to specific requirements. The NNI interfaces in the two site domains can be configured to be VC SNCP protection/MSP protection with reference to the conventional SDH protection scheme, and can also be configured to be ODUk1+1 using the method described in this patent.
If the ODUk1+1 protection is configured, only one ODUk protection needs to be configured, and the ODUk protection is mapped to all SDH protection domains under the ODUk according to the configuration processing flow described in the method.
When an ODUk layer fails, all VC particles under the ODUk are switched at the same time. The switching time can be optimized to 5-8 ms. Only one protection needs to be configured and only one protection state needs to be inquired correspondingly, so that the maintenance efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A system for improving VC protection efficiency carried in an OTN, comprising:
an ODUk1+1 protection configuration module to: storing ODUk1+1 protection configuration information during ODUk protection group establishment;
a VSDH and ODUk correspondence table for: storing the corresponding relation between the VSDH interface and the ODUk interface;
a protection mapping module to: when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
an SDH cross configuration module for: storing cross configuration information of MSP main VSDH;
a multicast configuration module to: generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, and sending the multicast data to a cross processing module, wherein the multicast data comprises configured source node information, host node information and host standby node information;
an ODUk protection triggering module configured to: collecting ODUk alarm, and outputting a switching control command to a cross processing module;
a cross-processing module to: and simultaneously issuing a switching control command to all MSP protections mapped to the ODUk according to the multicast data and executing switching.
2. The system of claim 1, wherein the ODUk1+1 protection configuration information includes slot and port information of a primary/spare ODUk in an ODUk protection group.
3. The system of claim 1, wherein the cross configuration information includes a cross scheduling relationship of an SDH interface or a VSDH interface.
4. The system of claim 1, wherein the protection mapping module is specifically configured to:
if the ODUk1+1 protection configuration is received, searching whether VSDH interface information matched with the ODUk main interface information exists in a VSDH and ODUk corresponding table, if yes, searching spare ODUk interface information according to the ODUk1+1 protection configuration information, and searching VSDH interface information corresponding to the spare ODUk interface information in the VSDH and ODUk corresponding table; if not, returning;
if the received VSDH interface configuration is the VSDH and ODUk corresponding table, whether an ODUk interface matched with the VSDH interface information exists in the VSDH and ODUk corresponding table is searched, whether the ODUk interface has main ODUk interface information of ODU1+1 or not is obtained according to the ODUk protection configuration information, if yes, spare ODUk interface information is found according to the ODUk1+1 protection configuration information, and VSDH interface information corresponding to the spare ODUk interface information is searched in the VSDH and ODUk corresponding table; and if not, returning.
5. The system of claim 1, wherein the ODUk protection triggering module is specifically configured to:
collecting ODUk alarm, outputting alarm according to OTN switching rule, and outputting switching control command to cross processing module according to APS protocol state.
6. A method for improving VC protection efficiency carried in OTN is characterized by comprising the following steps:
storing ODUk1+1 protection configuration information during ODUk protection group establishment; establishing a VSDH and ODUk corresponding table, and storing the corresponding relation of the VSDH interface and the ODUk interface in the VSDH and ODUk corresponding table;
when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching a VSDH and ODUk corresponding table and ODUk1+1 protection configuration information to obtain primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with ODUk primary interface information; searching for spare ODUk interface information and corresponding spare VSDH interface information; generating MSP1+1 protection configuration data based on the VSDH interface according to the information of the primary VSDH interface and the information of the standby VSDH interface;
searching cross configuration information of VSDH used by MSP, and generating multicast data according to the cross configuration information and MSP1+1 protection configuration data, wherein the multicast data comprises configured source node information, host node information and host standby node information;
collecting ODUk alarm, generating switching control command, sending switching control command to all MSP protection mapped to the ODUk according to the multicast data and executing switching.
7. The method of claim 6, wherein the ODUk1+1 protection configuration information includes slot and port information of a primary/spare ODUk in an ODUk protection group.
8. The method of claim 6, wherein the cross configuration information comprises a cross scheduling relationship of an SDH interface or a VSDH interface.
9. The method of claim 6, wherein when receiving a VSDH interface configuration or an ODUk1+1 protection configuration, searching for a VSDH and ODUk correspondence table and ODUk1+1 protection configuration information, and obtaining primary ODUk interface information matched with the VSDH interface or VSDH interface information matched with the ODUk primary interface information; searching for the spare ODUk interface information and the corresponding spare VSDH interface information, specifically comprising the following steps:
if the ODUk1+1 protection configuration is received, searching whether VSDH interface information matched with the ODUk main interface information exists in a VSDH and ODUk corresponding table, if yes, searching spare ODUk interface information according to the ODUk1+1 protection configuration information, and searching VSDH interface information corresponding to the spare ODUk interface information in the VSDH and ODUk corresponding table; if not, returning;
if the received VSDH interface configuration is the VSDH and ODUk corresponding table, whether an ODUk interface matched with the VSDH interface information exists in the VSDH and ODUk corresponding table is searched, whether the ODUk interface has main ODUk interface information of ODU1+1 or not is obtained according to the ODUk protection configuration information, if yes, spare ODUk interface information is found according to the ODUk1+1 protection configuration information, and VSDH interface information corresponding to the spare ODUk interface information is searched in the VSDH and ODUk corresponding table; and if not, returning.
10. The method of claim 6, wherein the collecting the ODUk alarm and generating the switching control command specifically includes the following steps:
collecting ODUk alarm, outputting alarm according to OTN switching rule, and generating switching control command according to APS protocol state.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622516A (en) * | 2003-11-27 | 2005-06-01 | 上海贝尔阿尔卡特股份有限公司 | A cross connection system for implementing SDH service protection switching and automatic recovery |
| EP1890406A1 (en) * | 2005-05-29 | 2008-02-20 | Huawei Technologies Co., Ltd. | A method for protecting the ring network of optical transport network |
| US20130114953A1 (en) * | 2011-11-07 | 2013-05-09 | Ciena Corporation | Optical transport network port protection systems and methods using flexible switch criteria |
| EP2713536A2 (en) * | 2012-09-26 | 2014-04-02 | Ciena Corporation | Optical transport network generic non-client specific protection systems and methods |
| CN105282631A (en) * | 2015-09-15 | 2016-01-27 | 烽火通信科技股份有限公司 | System and method for realizing electrical layer linear protection in POTN |
| US20160226781A1 (en) * | 2015-02-04 | 2016-08-04 | Electronics And Telecommunications Research Institute | Method and apparatus for processing traffic in optical transport network |
| CN108494474A (en) * | 2018-03-23 | 2018-09-04 | 烽火通信科技股份有限公司 | Realize that business is superimposed the method and system of pretection switch using OAM message |
| CN111083580A (en) * | 2019-12-09 | 2020-04-28 | 北京格林威尔科技发展有限公司 | Method and device for protecting Ethernet link in optical transmission network |
| CN111683305A (en) * | 2020-05-19 | 2020-09-18 | 烽火通信科技股份有限公司 | ODUk channel distribution method and system |
| CN112584261A (en) * | 2019-09-30 | 2021-03-30 | 中兴通讯股份有限公司 | Optical transport network equipment and method for determining service data |
-
2021
- 2021-09-15 CN CN202111082072.1A patent/CN113873360B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622516A (en) * | 2003-11-27 | 2005-06-01 | 上海贝尔阿尔卡特股份有限公司 | A cross connection system for implementing SDH service protection switching and automatic recovery |
| EP1890406A1 (en) * | 2005-05-29 | 2008-02-20 | Huawei Technologies Co., Ltd. | A method for protecting the ring network of optical transport network |
| US20130114953A1 (en) * | 2011-11-07 | 2013-05-09 | Ciena Corporation | Optical transport network port protection systems and methods using flexible switch criteria |
| EP2713536A2 (en) * | 2012-09-26 | 2014-04-02 | Ciena Corporation | Optical transport network generic non-client specific protection systems and methods |
| US20160226781A1 (en) * | 2015-02-04 | 2016-08-04 | Electronics And Telecommunications Research Institute | Method and apparatus for processing traffic in optical transport network |
| CN105282631A (en) * | 2015-09-15 | 2016-01-27 | 烽火通信科技股份有限公司 | System and method for realizing electrical layer linear protection in POTN |
| CN108494474A (en) * | 2018-03-23 | 2018-09-04 | 烽火通信科技股份有限公司 | Realize that business is superimposed the method and system of pretection switch using OAM message |
| CN112584261A (en) * | 2019-09-30 | 2021-03-30 | 中兴通讯股份有限公司 | Optical transport network equipment and method for determining service data |
| CN111083580A (en) * | 2019-12-09 | 2020-04-28 | 北京格林威尔科技发展有限公司 | Method and device for protecting Ethernet link in optical transmission network |
| CN111683305A (en) * | 2020-05-19 | 2020-09-18 | 烽火通信科技股份有限公司 | ODUk channel distribution method and system |
Non-Patent Citations (2)
| Title |
|---|
| 杨胤;: "OTN综合承载保护倒换时间研究", 铁路通信信号工程技术 * |
| 谢晖;: "基于OTN技术的城域光网络核心层设计", 电信快报 * |
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