CN104734865A - Network protection method for PTN (Packet Transport Network), device and network element device - Google Patents

Network protection method for PTN (Packet Transport Network), device and network element device Download PDF

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Publication number
CN104734865A
CN104734865A CN201310698545.XA CN201310698545A CN104734865A CN 104734865 A CN104734865 A CN 104734865A CN 201310698545 A CN201310698545 A CN 201310698545A CN 104734865 A CN104734865 A CN 104734865A
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Prior art keywords
error code
network element
element device
alarm
network
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CN201310698545.XA
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Chinese (zh)
Inventor
谢均
甘兰军
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China Mobile Group Guizhou Co Ltd
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China Mobile Group Guizhou Co Ltd
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Priority to CN201310698545.XA priority Critical patent/CN104734865A/en
Publication of CN104734865A publication Critical patent/CN104734865A/en
Pending legal-status Critical Current

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Abstract

The embodiment of the invention discloses a network protection method for a PTN (Packet Transport Network). The method comprises steps: a first network element device is sure to generate error code alarms, and the generated error code alarms are accumulated; and when the error code alarms are accumulated to a first preset threshold, tunnel switching is triggered. The embodiment of the invention also discloses a PTN network protection device and a network element device. By adopting the technical scheme of the embodiment of the invention, when an error code happens to a network line but the packet service performance is not influenced, the line is changed timely, and flash of service can be prevented.

Description

A kind of network protection method of Packet Transport Network, device and network element device
Technical field
The present invention relates to optical communication technique, be specifically related to network protection method, device and the network element device of a kind of Packet Transport Network (PTN, Packet TransportNetwork).
Background technology
Usually adopt multiplex section protection (MSP, Multiplex Section Protection) as protection mechanism in PTN, its principle arranges protection path, when active channel breaks down, switches the business on protection path.
The management work of network mainly comprises three classes: operate (Operation), management (Administration), safeguard (Maintenance), be called for short OAM; OAM mechanism in PTN mainly comprises alarm detection mechanism and Performance Detection mechanism, Performance Detection mechanism also imperfection in existing PTN, when network line occurs error code but do not affect packet service performance, network line can not be switched, and this can cause the business of the network carrying to occur flash.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides the network protection method of a kind of PTN, device and network element device, when can occur error code at network line but not affect packet service performance, switches circuit in time, prevents business from occurring flash.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
Embodiments provide the network protection method of a kind of PTN, described method comprises:
First network element device is determined to produce error code alarm, adds up to the error code alarm produced;
When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch.
In such scheme, described first network element device is determined to produce error code alarm, comprising:
Described first network element device detects error code, adds up to the error code detected; When determining that error code is added to the second predetermined threshold value, determine to produce error code alarm.
In such scheme, described first network element device is determined to produce error code alarm, comprising:
Described first network element device receives the warning message that intermediate NE equipment sends, and determines to produce error code alarm; Wherein, described warning message comprises error code information, packet loss information.
In such scheme, described first network element device receives the warning message that intermediate NE equipment sends, and comprising:
Described intermediate NE equipment Inspection, to error code, adds up to the error code detected; When determining that error code is added to the second predetermined threshold value, send warning message to described first network element device.
In such scheme, the switching of described triggering tunnel comprises:
Described first network element device sends switching command to the second network element device, indicates described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
The embodiment of the present invention additionally provides the network protector of a kind of PTN, and described device comprises: alarm determination module and warning processing module; Wherein,
Described alarm determination module, produces error code alarm for determining;
Described warning processing module, adds up for the error code alarm determined by described alarm determination module, when determining that error code alarm is added to the first predetermined threshold value, triggers tunnel and switches.
In such scheme, described alarm determination module comprises: detection sub-module and determine submodule; Wherein,
Described detection sub-module, for detecting error code;
Describedly determine submodule, add up for the error code detected described detection sub-module, when determining that error code is added to the second predetermined threshold value, determine to produce error code alarm.
In such scheme, described alarm determination module also comprises reception submodule, and for receiving the warning message that intermediate NE equipment sends, described warning message comprises error code information, packet loss information;
Accordingly, describedly determine submodule, when also receiving warning message for described reception submodule, determine to produce error code alarm.
In such scheme, described warning processing module, also for sending switching command to the second network element device, indicates described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
The embodiment of the present invention additionally provides the network protector of a kind of PTN, and described device comprises detection module and sending module; Wherein,
Described detection module, for detecting error code;
Described sending module, adds up for the error code detected described detection module, when determining that error code is added to the second predetermined threshold value, sends warning message.
The embodiment of the present invention additionally provides a kind of network element device, and described network element device comprises the network protector of the PTN described in the embodiment of the present invention, and described network protector comprises: alarm determination module and warning processing module.
The embodiment of the present invention additionally provides a kind of network element device, and described network element device comprises the network protector of the PTN described in the embodiment of the present invention, and described network protector comprises: detection module and sending module.
The technical scheme that the embodiment of the present invention provides, determines to produce error code alarm by the first network element device, adds up to the error code alarm produced; When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch, so, achieve when network line occurs error code but do not affect packet service performance, switch circuit in time, prevent business from occurring flash.
Accompanying drawing explanation
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the network protection method of the PTN of the embodiment of the present invention;
Fig. 3 is the first application scenarios schematic diagram of the embodiment of the present invention;
Fig. 4 is the second application scenarios schematic diagram of the embodiment of the present invention;
Fig. 5 is the 3rd application scenarios schematic diagram of the embodiment of the present invention;
Fig. 6 is the composition structural representation of the network protector of the PTN of the embodiment of the present invention;
Fig. 7 is the composition structural representation of the network protector of the PTN of another embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention, as shown in Figure 1, the present embodiment comprises the first network element device 11 and the second network element device 16, packet is sent to described first network element device 11 from described second network element device 16, two intermediate NE equipment are also at least comprised in described first network element device 11 and the second network element device 16, described two intermediate NE equipment are respectively primary intermediate NE equipment and intermediate NE equipment for subsequent use, when active link normally works, by primary intermediate NE device forwards packet, when active link is abnormal, triggering tunnel switches, by intermediate NE device forwards packet for subsequent use, the present embodiment comprises four intermediate NE equipment, and wherein, intermediate NE equipment 12 and intermediate NE equipment 13 are primary network element device, and intermediate NE equipment 14 and intermediate NE equipment 15 are standby network element equipment.
Fig. 1 is the schematic flow sheet of the network protection method of the PTN of the embodiment of the present invention; As shown in Figure 1, comprise the following steps:
Step 101: the first network element device is determined to produce error code alarm.
Here, described first network element device determines that producing error code alarm can detect error code according to self, adds up to the error code detected; When determining that error code is added to the second predetermined threshold value, determine to produce error code alarm; Also can receive the warning message that intermediate NE equipment sends, determine to produce error code alarm; Wherein, described warning message comprises: node number, error code information, packet loss information.
In the present embodiment, the warning message that described intermediate NE equipment sends, be by described intermediate NE equipment Inspection to error code, the error code detected is added up; When determining that error code is added to the second predetermined threshold value, send warning message to described first network element device.
Wherein, when described first network element device is connected by physical port with described intermediate NE equipment, by frame check sequence (FCS, Frame Check Sequence) check physics port accepts to packet whether there is error code.
Wherein, described Packet Error Ratio is determined with the ratio of the packet total quantity received by the erroneous packets quantity detected in Preset Time; Described packet loss is determined by the ratio of the total quantity of the data packet number of loss that detects in Preset Time and the packet of transmission.
Step 102: the first network element device adds up to the error code alarm produced.
Here, described first network element device can be add up to the error rate in error code alarm and/or packet loss, also can be to add up to the error rate in the warning message of described intermediate NE equipment transmission and/or packet loss.
Step 103: when determining that error code alarm is added to the first predetermined threshold value, triggers tunnel and switches.
Here, when described first network element device determination error code alarm is added to the first predetermined threshold value, send switching command to the second network element device, indicate described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
Because network element device can be end network element device and intermediate NE equipment, and the generation of error code can be between end network element device to intermediate NE equipment, or between intermediate NE equipment to intermediate NE equipment, or between intermediate NE equipment to end network element device, below according to the position difference that error code produces, the present invention is further detailed explanation in conjunction with specific embodiments.
Embodiment one:
Fig. 3 is the first application scenarios schematic diagram of the embodiment of the present invention; As shown in Figure 3, the present embodiment comprises the first network element device 11 and the second network element device 16, packet is sent to described first network element device 11 from described second network element device 16, described first network element device 11 and the second network element device 16 comprise four intermediate NE equipment, wherein, intermediate NE equipment 12 and intermediate NE equipment 13 are primary network element device, and intermediate NE equipment 14 and intermediate NE equipment 15 are standby network element equipment.When error code being detected between the second network element device 16 to intermediate NE equipment 13, in the present embodiment, the network protection method of PTN comprises the following steps:
Step 31: intermediate NE equipment 13 detects error code, adds up to the error code detected, when determining that error code is added to the second predetermined threshold value, sends warning message to described first network element device 11.
Here, described intermediate NE equipment 13 by FCS check physics port accepts to packet whether there is error code, when error code is accumulated to the second predetermined threshold value, send warning message to described first network element device 11, described warning message can comprise: the information such as node number, the error rate, packet loss worry;
Wherein, described Packet Error Ratio is determined with the ratio of the packet total quantity received by the erroneous packets quantity detected in Preset Time; Described packet loss is determined by the ratio of the total quantity of the data packet number of loss that detects in Preset Time and the packet of transmission.
Step 32: the first network element device 11 receives the warning message that intermediate NE equipment 13 sends, determines to produce error code alarm, adds up to the error code alarm produced; When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch.
Concrete, when described first network element device 11 determines that error code alarm is added to the first predetermined threshold value, send switching command to the second network element device 16, indicate described second network element device 16 to send message by intermediate NE equipment 15 for subsequent use and intermediate NE equipment 14 for subsequent use to described first network element device 11.
Embodiment two
Fig. 4 is the second application scenarios schematic diagram of the embodiment of the present invention; As shown in Figure 4, the present embodiment comprises the first network element device 11 and the second network element device 16, packet is sent to described first network element device 11 from described second network element device 16, described first network element device 11 and the second network element device 16 comprise four intermediate NE equipment, wherein, intermediate NE equipment 12 and intermediate NE equipment 13 are primary network element device, and intermediate NE equipment 14 and intermediate NE equipment 15 are standby network element equipment; When error code being detected between middle network element device 13 to intermediate NE equipment 12, in the present embodiment, the network protection method of PTN comprises the following steps:
Step 41: intermediate NE equipment 12 detects error code, adds up to the error code detected, when determining that error code is added to the second predetermined threshold value, sends warning message to described first network element device 11.
Here, described intermediate NE equipment 12 by FCS check physics port accepts to packet whether there is error code, when error code is accumulated to the second predetermined threshold value, send warning message to described first network element device 11, described warning message can comprise: the information such as node number, the error rate, packet loss worry;
Wherein, described Packet Error Ratio is determined with the ratio of the packet total quantity received by the erroneous packets quantity detected in Preset Time; Described packet loss is determined by the ratio of the total quantity of the data packet number of loss that detects in Preset Time and the packet of transmission.
Step 42: the first network element device 11 receives the warning message that intermediate NE equipment 12 sends, determines to produce error code alarm, adds up to the error code alarm produced; When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch.
Concrete, when described first network element device 11 determines that error code alarm is added to the first predetermined threshold value, send switching command to the second network element device 16, indicate described second network element device 16 to send message by intermediate NE equipment 15 for subsequent use and intermediate NE equipment 14 for subsequent use to described first network element device 11.
Embodiment three
Fig. 5 is the 3rd application scenarios schematic diagram of the embodiment of the present invention; As shown in Figure 5, the present embodiment comprises the first network element device 11 and the second network element device 16, packet is sent to described first network element device 11 from described second network element device 16, described first network element device 11 and the second network element device 16 comprise four intermediate NE equipment, wherein, intermediate NE equipment 12 and intermediate NE equipment 13 are primary network element device, and intermediate NE equipment 14 and intermediate NE equipment 15 are standby network element equipment; When error code being detected between middle network element device 12 to the first network element device 11, in the present embodiment, the network protection method of PTN comprises the following steps:
Step 51: the first network element device 11 detects error code, adds up to the error code detected, when determining that error code is added to the second predetermined threshold value, determines to produce error code alarm.
Here, described first network element device 11 by FCS check physics port accepts to packet whether there is error code, when error code is accumulated to the second predetermined threshold value, determine to produce error code alarm; Wherein, described error code alarm can comprise: the information such as node number, the error rate, packet loss worry;
Wherein, described Packet Error Ratio is determined with the ratio of the packet total quantity received by the erroneous packets quantity detected in Preset Time; Described packet loss is determined by the ratio of the total quantity of the data packet number of loss that detects in Preset Time and the packet of transmission.
Step 52: the first network element device 11 adds up to the error code alarm produced; When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch.
Concrete, when described first network element device 11 determines that error code alarm is added to the first predetermined threshold value, send switching command to the second network element device 16, indicate described second network element device 16 to send message by intermediate NE equipment 15 for subsequent use and intermediate NE equipment 14 for subsequent use to described first network element device 11.
Fig. 6 is the composition structural representation of the network protector of the PTN of the embodiment of the present invention, and as shown in Figure 6, described device comprises: alarm determination module 61 and warning processing module 62; Wherein,
Described alarm determination module 61, produces error code alarm for determining;
Described warning processing module 62, adds up for the error code alarm determined by described alarm determination module 61, when determining that error code alarm is added to the first predetermined threshold value, triggers tunnel and switches.
Preferably, described alarm determination module 61 comprises: detection sub-module 611 and determine submodule 612; Wherein,
Described detection sub-module 611, for detecting error code;
Describedly determine submodule 612, add up for the error code detected described detection sub-module 611, when determining that error code is added to the second predetermined threshold value, determine to produce error code alarm.
Preferably, described alarm determination module 61 also comprises reception submodule 613, and for receiving the warning message that intermediate NE equipment sends, described warning message comprises error code information, packet loss information;
Accordingly, describedly determine submodule 612, when also receiving warning message for described reception submodule 613, determine to produce error code alarm.
Preferably, described warning processing module 62, also for sending switching command to the second network element device, indicates described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
Those skilled in the art are to be understood that; the function of each processing module in the network protector of the PTN of the embodiment of the present invention; can refer to the associated description of the network protection method of aforementioned PTN and understand; each processing module in the network protector of the PTN of the embodiment of the present invention; realizing by realizing the analog circuit of the function described in the embodiment of the present invention, also can be realized by the operation of the software of the function of execution described in the embodiment of the present invention on intelligent terminal.
Wherein, the network protector of described PTN in actual applications, can be realized by the end network element device in PTN; Warning processing module 62 in described device, can by central processing unit (the CentralProcessing Unit in device, or digital signal processor (Digital Signal Processor CPU), DSP) or programmable gate array (Field-Programmable Gate Array, FPGA) realize; Alarm determination module 61 in described device and submodule thereof: detection sub-module 611, determine submodule 612 and receive submodule 613, in actual applications, jointly can be realized by the CPU in device and receiver.
The embodiment of the present invention additionally provides a kind of network element device, and described network element device comprises the network protector of PTN as shown in Figure 6; Described network element device, as end network element device, has the Error detection function of self port, when the warning message simultaneously sent when the intermediate NE equipment received is added to the first predetermined threshold value, and the handover operation of trigger protection link.
Fig. 7 is the composition structural representation of the network protector of the PTN of another embodiment of the present invention, and as shown in Figure 7, described device comprises: detection module 71 and sending module 72; Wherein,
Described detection module 71, for detecting error code;
Described sending module 72, adds up for the error code detected described detection module 71, when determining that error code is added to the second predetermined threshold value, sends warning message.
Those skilled in the art are to be understood that; the function of each processing module in the network protector of the PTN of the embodiment of the present invention; can refer to the associated description of the network protection method of aforementioned PTN and understand; each processing module in the network protector of the PTN of the embodiment of the present invention; realizing by realizing the analog circuit of the function described in the embodiment of the present invention, also can be realized by the operation of the software of the function of execution described in the embodiment of the present invention on intelligent terminal.
Wherein, the network protector of described PTN in actual applications, can be realized by the intermediate NE equipment in PTN; Detection module 71 in described device, can by central processing unit (the CentralProcessing Unit in device, or digital signal processor (Digital Signal Processor CPU), DSP) or programmable gate array (Field-Programmable Gate Array, FPGA) realize; Sending module 72 in described device in actual applications, can be realized by the CPU in device and transmitter jointly.
The embodiment of the present invention additionally provides a kind of network element device, and described network element device is the intermediate NE equipment in PTN, and described network element device comprises the network protector of PTN as shown in Figure 7, and described device comprises: detection module 71 and sending module 72; Wherein,
Described detection module 71, for detecting error code;
Described sending module 72, adds up for the error code detected described detection module 71, when determining that error code is added to the second predetermined threshold value, sends warning message.
Described network element device, as intermediate NE equipment, only has the Error detection function of self port, when the error code detected is added to the second predetermined threshold value, sends warning message to end network element device, switches to trigger tunnel by end network element device.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims (12)

1. a network protection method of Packet Transport Network PTN, is characterized in that, described method comprises:
First network element device is determined to produce error code alarm, adds up to the error code alarm produced;
When determining that error code alarm is added to the first predetermined threshold value, trigger tunnel and switch.
2. method according to claim 1, is characterized in that, described first network element device is determined to produce error code alarm, comprising:
Described first network element device detects error code, adds up to the error code detected; When determining that error code is added to the second predetermined threshold value, determine to produce error code alarm.
3. method according to claim 1, is characterized in that, described first network element device is determined to produce error code alarm, comprising:
Described first network element device receives the warning message that intermediate NE equipment sends, and determines to produce error code alarm; Wherein, described warning message comprises error code information, packet loss information.
4. method according to claim 3, is characterized in that, described first network element device receives the warning message that intermediate NE equipment sends, and comprising:
Described intermediate NE equipment Inspection, to error code, adds up to the error code detected; When determining that error code is added to the second predetermined threshold value, send warning message to described first network element device.
5. method according to claim 1, is characterized in that, the switching of described triggering tunnel comprises:
Described first network element device sends switching command to the second network element device, indicates described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
6. a network protector of PTN, is characterized in that, described device comprises: alarm determination module and warning processing module; Wherein,
Described alarm determination module, produces error code alarm for determining;
Described warning processing module, adds up for the error code alarm determined by described alarm determination module, when determining that error code alarm is added to the first predetermined threshold value, triggers tunnel and switches.
7. device according to claim 6, is characterized in that, described alarm determination module comprises: detection sub-module and determine submodule; Wherein,
Described detection sub-module, for detecting error code;
Describedly determine submodule, add up for the error code detected described detection sub-module, when determining that error code is added to the second predetermined threshold value, determine to produce error code alarm.
8. device according to claim 6, is characterized in that, described alarm determination module also comprises reception submodule, and for receiving the warning message that intermediate NE equipment sends, described warning message comprises error code information, packet loss information;
Accordingly, describedly determine submodule, when also receiving warning message for described reception submodule, determine to produce error code alarm.
9. device according to claim 6, is characterized in that, described warning processing module, also for sending switching command to the second network element device, indicates described second network element device to send message by intermediate NE equipment for subsequent use to described first network element device.
10. a network protector of PTN, is characterized in that, described device comprises detection module and sending module; Wherein,
Described detection module, for detecting error code;
Described sending module, adds up for the error code detected described detection module, when determining that error code is added to the second predetermined threshold value, sends warning message.
11. 1 kinds of network element devices, is characterized in that, described network element device comprises the network protector of the PTN described in any one of claim 6 to 9.
12. 1 kinds of network element devices, is characterized in that, described network element device comprises the network protector of PTN according to claim 10.
CN201310698545.XA 2013-12-18 2013-12-18 Network protection method for PTN (Packet Transport Network), device and network element device Pending CN104734865A (en)

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CN107528631A (en) * 2017-08-31 2017-12-29 武汉虹信通信技术有限责任公司 Link error detection diagnostic method and device based on digital fiber compartment system
CN112073285A (en) * 2019-06-10 2020-12-11 华为技术有限公司 Error code notification method and related equipment

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CN102215127A (en) * 2011-06-08 2011-10-12 中兴通讯股份有限公司 Signal degrade processing method, device and node equipment
CN102724086A (en) * 2012-06-21 2012-10-10 中兴通讯股份有限公司 Method and device for detecting quality of transmission link

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CN107528631A (en) * 2017-08-31 2017-12-29 武汉虹信通信技术有限责任公司 Link error detection diagnostic method and device based on digital fiber compartment system
CN112073285A (en) * 2019-06-10 2020-12-11 华为技术有限公司 Error code notification method and related equipment

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