CN107342883A - One kind realizes Packet Transport Network performance degradation localization method and system - Google Patents
One kind realizes Packet Transport Network performance degradation localization method and system Download PDFInfo
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- CN107342883A CN107342883A CN201610285690.9A CN201610285690A CN107342883A CN 107342883 A CN107342883 A CN 107342883A CN 201610285690 A CN201610285690 A CN 201610285690A CN 107342883 A CN107342883 A CN 107342883A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- 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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
Abstract
This application provides one kind to realize Packet Transport Network performance degradation localization method and system, and this method includes：Source PTN device sends cycle transmission LB request messages using rapid message；When middle PTN device receives LB request messages, LB request messages are sent to purpose PTN device direction, and LB response messages are sent to source PTN device；When purpose PTN device receives LB request messages, LB response messages are sent to source PTN device；Source PTN device calculates the number of dropped packets of the link between two neighboring PTN device according to the bar number that LB response messages are sent in the two neighboring PTN device same period of record, by number of dropped packets determine in respective links whether performance degradation.The technical scheme can fast positioning packet loss performance degradation link, and improve maintenance efficiency.
Description
Technical field
The present invention relates to communication technical field, more particularly to one kind realizes that Packet Transport Network performance degradation positions
Method and system.
Background technology
With the aggravation that carrier market competes, Consumer's Experience turns into the emphasis of operator's concern.For base
, it is necessary to which persistently improving the end-to-end QoS based on client perception ensures machine for plinth bearer network aspect
System.During group transmission network (PTN) carries set-off special line or mobile base station passed-back traffic at present,
Lack effective end to end performance deterioration positioning means.
PTN network is using layered service provider (LSP) tunnel or the OAM of pseudo-wire (PW) at present
Mechanism, or by the way of external meters probe is inserted, can monitor that the performance of teleservice is bad
Change.But after performance degradation is detected, attendant's positioning packet loss occurs or delay performance is bad
The position of change is extremely difficult.
Referring to Fig. 1, Fig. 1 is that PTN carries set-off special line networking schematic diagram.Metropolitan area PTN network is typically divided
It is relative complex for three metro core, convergence and access levels, network structure.
Existing OAM mechanism is performance detection mechanism end to end.The performance occurred for Access Layer
Deterioration, synthetic determination can also be carried out by landing service on access ring, such as reaches company branch equipment 1
LSP on do not detect performance degradation, and PTN device corresponding to passing through company branch equipment 1 arrives
There is performance degradation up to the LSP in company branch equipment 2, can be with Primary Location performance degradation point in public affairs
Branch equipment 1 is taken charge of to the PTN links between company branch equipment 2.But for convergence-level and core
Layer, business are relative complex, it is difficult to which positioning performance deteriorates point.
The content of the invention
In view of this, the application provides one kind and realizes Packet Transport Network performance degradation localization method and system,
Can fast positioning packet loss performance degradation link, and improve maintenance efficiency.
In order to solve the above technical problems, what the technical scheme of the application was realized in：
One kind realizes that Packet Transport Network PTN can deteriorate localization method, applied to including source PTN device,
In the system of middle PTN device and purpose PTN device, source PTN device is that destination node MEP is safeguarded in source
The PTN device at place, PTN device of the middle PTN device where Maintenance Intermediate Point MIP, purpose
PTN device is the PTN device where purpose MEP, and this method includes：
Source PTN device sends cycle transmission loopback LB request messages using rapid message；
When middle PTN device receives LB request messages, sending LB to purpose PTN device direction please
Message is sought, and LB response messages are sent to source PTN device；
When purpose PTN device receives LB request messages, LB response messages are sent to source PTN device；
Source PTN device receives the LB response messages that middle PTN device and purpose PTN device are sent,
And the middle PTN device received in each cycle is recorded respectively, and the transmission of purpose PTN device
The bar number of LB response messages；
Source PTN device sends LB response reports in the two neighboring PTN device same period according to record
The bar number of text, the number of dropped packets of the link between two neighboring PTN device is calculated, when the number of dropped packets of calculating is
When 0, link performance is normal between determining the two neighboring PTN device；When the number of dropped packets of calculating is not 0
When, link performance deteriorates between determining the two neighboring PTN device.
One kind realizes Packet Transport Network PTN performance degradation alignment systems, it is characterised in that the system includes：
Source PTN device, middle PTN device and purpose PTN device；Wherein, source PTN device is safeguarded for source
PTN device where destination node MEP, middle PTN device are the PTN where Maintenance Intermediate Point MIP
Equipment, purpose PTN device are the PTN device where purpose MEP；
The source PTN device, cycle transmission loopback LB request messages are sent using rapid message；Receive
The LB response messages that middle PTN device and purpose PTN device is sent, and each cycle is recorded respectively
The middle PTN device inside received, and the bar number of the LB response messages of purpose PTN device transmission；
According to the bar number that LB response messages are sent in the two neighboring PTN device same period of record, phase is calculated
The number of dropped packets of link between adjacent two PTN devices, when the number of dropped packets of calculating is 0, determine that this is adjacent
Link performance is normal between two PTN devices；When calculating number of dropped packets be 0 when, determine this adjacent two
Link performance deteriorates between individual PTN device；
The middle PTN device, when receiving LB request messages, sent out to purpose PTN device direction
LB request messages are sent, and LB response messages are sent to source PTN device；
The purpose PTN device, when receiving LB request messages, send LB to source PTN device and ring
Answer message.
As can be seen from the above technical solution, the cycle is sent by changing LB request messages in the application, and
Enable middle PTN device and purpose PTN device auto-returned LB response messages, pass through each week
Each PTN device returns to the bar number of LB response messages in phase, determines between two neighboring PTN device
Packet loss of link number, determines whether the performance of the link deteriorates.So as to fast positioning performance degradation link,
And improve maintenance efficiency.
Brief description of the drawings
Fig. 1 is that PTN carries set-off special line networking schematic diagram；
Fig. 2 is PTN schematic diagrames in the embodiment of the present application；
PTN performance degradation positioning flow schematic diagrames are realized in Fig. 3 the embodiment of the present application；
Fig. 4 is to realize PTN performance degradation alignment system schematic diagrames in embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings simultaneously
For embodiment, technical scheme is described in detail.
One kind is provided in the embodiment of the present application and realizes Packet Transport Network performance degradation localization method, applied to bag
In the PTN for including source PTN device, middle PTN device and purpose PTN device, source PTN device is
The PTN device where destination node (MEP) is safeguarded in source, and middle PTN device is Maintenance Intermediate Point (MIP)
The PTN device at place, purpose PTN device are the PTN device where purpose MEP.
Referring to Fig. 2, Fig. 2 is PTN schematic diagrames in the embodiment of the present application.In Fig. 2 with company branch equipment
Connected PTN device is source PTN device, i.e. PTN device 1, and the MEP in the PTN device is
Source MEP, the PTN device being connected with corporate HQ's equipment are purpose PTN device, i.e. PTN device 5,
MEP in the PTN device is purpose MEP, and other PTN devices are middle PTN device, the PTN
Node in equipment is MIP.
Below in conjunction with the accompanying drawings, describe in detail in the embodiment of the present application and realize PTN performance degradation position fixing process.
Here PTN performance degradations, the i.e. performance degradation of link in PTN between each PTN device, link
Performance degradation refer to link whether congestion etc..
Referring to Fig. 3, PTN performance degradation positioning flow schematic diagrames in Fig. 3 the embodiment of the present application.Specific step
Suddenly it is：
Step 301, source PTN device sends cycle transmission LB request messages using rapid message.
In existing realization, the transmission cycle of loopback (Loop Back, LB) request message is sent out for the slow cycle
Send, i.e. 1/second, expanded in the application embodiment rapid message send the cycle, such as 3.33ms, or
10ms sends one, i.e. 300/s, 100/s.
In specific implementation, in the case of cyclomorphosis, can be asked according to increase LB is actually needed
The transmission rate of message, such as 10Mbps.
Step 302, when middle PTN device receives LB request messages, to purpose PTN device direction
LB request messages are sent, and LB response messages are sent to source PTN device.
Step 303, when purpose PTN device receives LB request messages, sent to source PTN device
LB response messages.
In the embodiment, middle PTN device, and the increase of purpose PTN device send response LB
The function of response message, i.e., when receiving LB request messages, LB responses are returned to source PTN device
Message.
Middle PTN device sends LB requests when receiving LB request messages, to purpose PTN device
The realization of message is compared with realization.
Step 304, source PTN device receives the LB that middle PTN device and purpose PTN device are sent
Response message, and the middle PTN device received in each cycle is recorded respectively, and purpose PTN
The bar number for the LB response messages that equipment is sent.
For source PTN device when receiving the LB response messages of other PTN devices return, record is weekly
Phase receives LB response bar numbers.During specific implementation, it can use and often receive a message, will receive
Message bar number increase by 1.
The cycle T of LB request messages is such as sent, since moment t1, then current period is t1 to t1+T；
The corresponding cycle for then receiving LB response messages is t1+d to t1+T+d, and usage time is delayed certain time
D is as the corresponding cycle for receiving LB response messages, merely just a kind of citing, unlimited system specific implementation
The mode of the bar number of the reception LB response messages of periodic recording.
Each PTN device has unique mark (ID), when sending LB response messages, carries this only
One mark, source PTN device is set to can recognize that the LB response messages which PTN device is sent.
LB request messages are sent in the embodiment and the priority of LB response messages is arranged to and LSP industry
The priority of business message is identical, can reflect network because packet loss phenomenon caused by congestion.If business report
The priority change of text, then the priority of LB request messages and LB response messages is sent equally with covariant
Change, that is, keep same LSP service priority consistent.
Step 305, sent in two neighboring PTN device same period of the source PTN device according to record
The bar number of LB response messages, calculates the number of dropped packets of the link between two neighboring PTN device, works as calculating
Number of dropped packets be 0 when, link performance is normal between determining the two neighboring PTN device；When losing for calculating
When bag number is not 0, link performance deteriorates between determining the two neighboring PTN device.
In this step LB is sent in two neighboring PTN device same period of the source PTN device according to record
The bar number of response message, the number of dropped packets of the link between two neighboring PTN device is calculated, including：
When two neighboring PTN device is source PTN device and middle PTN device, two neighboring PTN
The number of dropped packets of link between equipment is that source PTN device sends the bar number of LB request messages, with record
Reception the difference of the bar numbers of LB response messages that sends of the middle PTN device；
When two neighboring PTN device is PTN devices among two, or, middle PTN device and purpose
During PTN device, the number of dropped packets of the link between two neighboring PTN device is, record it is described two
PTN device sends the difference of the bar number of LB response messages.
Still by taking Fig. 2 as an example, when two neighboring PTN device is PTN device 1 and PTN device 2,
Packet loss of link number between PTN device 1 and PTN device 2 is：S-R1；S is that PTN device 1 is sent out
The bar number of LB request messages is sent, R1 is the bar number that PTN device returns to LB response messages.
When two neighboring PTN device is PTN device 3 and PTN device 4, the He of PTN device 3
Packet loss of link number between PTN device 4 is：(S-R4)-((S-R3)-((S-R2)-(S-R1))
- (S-R1))-((S-R2)-(S-R1))-(S-R1)=R4-R3, wherein, R2, R3, R4
Respectively PTN device 2, PTN device 3 and PTN device 4 return to the bar number of LB response messages.
In order to avoid PTN device where the MIP in LSP routes can not be terminated and responded in the present embodiment
This intrinsic mechanism of LM/DM messages, and be difficult to for not transmited and receive telegrams in the LSP locally to terminate
Literary performance count statistics, causes the measurement that can not realize packet loss；But by being extended to LB mechanism,
Inherit and safeguard that node can receive and dispatch LB messages this features among it, by the receipts for improving LB messages
Speed is sent out, carrying out counting statistics to transmitting-receiving message by initial sending node realizes that packet loss measures, accurately to determine
The position of position performance degradation.
Based on same inventive concept, the application also proposes that one kind realizes PTN performance degradation alignment systems.
Referring to Fig. 4, Fig. 4 is to realize PTN performance degradation alignment system schematic diagrames in the embodiment of the present application.This is
System includes：Source PTN device, middle PTN device and purpose PTN device；Wherein, source PTN device
The PTN device where destination node MEP is safeguarded for source, middle PTN device is Maintenance Intermediate Point MIP
The PTN device at place, purpose PTN device are the PTN device where purpose MEP；
Source PTN device, cycle transmission loopback LB request messages are sent using rapid message；Among receiving
The LB response messages that PTN device and purpose PTN device are sent, and record in each cycle and receive respectively
The middle PTN device arrived, and the bar number of the LB response messages of purpose PTN device transmission；According to
The bar number of LB response messages is sent in the two neighboring PTN device same period of record, calculates adjacent two
The number of dropped packets of link between individual PTN device, when the number of dropped packets of calculating is 0, determine that this is two neighboring
Link performance is normal between PTN device；When the number of dropped packets of calculating is not 0, the two neighboring PTN is determined
Link performance deteriorates between equipment；
Middle PTN device, when receiving LB request messages, LB is sent to purpose PTN device direction
Request message, and send LB response messages to source PTN device；
The purpose PTN device, when receiving LB request messages, send LB to source PTN device and ring
Answer message.
It is preferred that
Source PTN device, specifically for being sent in the two neighboring PTN device same period according to record
The bar number of LB response messages, when calculating the number of dropped packets of link between two neighboring PTN device, work as phase
When adjacent two PTN devices are source PTN device and middle PTN device, between two neighboring PTN device
The number of dropped packets of link be that source PTN device sends the bar number of LB request messages, with the reception of record
The difference of the bar number for the LB response messages that the middle PTN device is sent；When two neighboring PTN device
For PTN devices among two, or, when middle PTN device and purpose PTN device, two neighboring PTN
The number of dropped packets of link between equipment is that described two PTN devices of record send LB response messages
The difference of bar number.
It is preferred that
The source PTN device, send the excellent of the LB request messages and the LB response messages that receive
First level is arranged to identical with the priority of layered service provider LSP service message.
In summary, the application can not be terminated and be rung by the PTN device being route in order to avoid LSP
Answer this intrinsic mechanism of LM/DM messages, and middle PTN device is difficult to for not terminating locally
LSP carries out receiving and dispatching message performance count statistics, causes the measurement that can not realize packet loss.But by right
LB mechanism is extended, and LB messages this features can be received and dispatched by inheriting in-between PTN device, be led to
The transmitting-receiving cycle for improving LB messages is spent, counting statistics realization is carried out to transmitting-receiving message by initial sending node
Packet loss rate measurement, position is deteriorated with positioning performance.
By the technical program, solve the performance degradation that teleservice can only be found in PTN network,
And can not realize that the problem of performance degradation occurs in that section of link of fast positioning in maintenance process, substantially increase
Maintenance efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements done etc., it should be included in
Within the scope of protection of the invention.
Claims (6)
1. one kind realizes Packet Transport Network PTN performance degradation localization methods, applied to including source PTN device,
In the system of middle PTN device and purpose PTN device, source PTN device safeguards destination node MEP institutes for source
PTN device, middle PTN device be Maintenance Intermediate Point MIP where PTN device, purpose PTN
Equipment is the PTN device where purpose MEP, it is characterised in that this method includes：
Source PTN device sends cycle transmission loopback LB request messages using rapid message；
When middle PTN device receives LB request messages, LB requests are sent to purpose PTN device direction
Message, and send LB response messages to source PTN device；
When purpose PTN device receives LB request messages, LB response messages are sent to source PTN device；
Source PTN device receives the LB response messages that middle PTN device and purpose PTN device are sent, and divides
The middle PTN device received in each cycle, and the LB responses that purpose PTN device is sent are not recorded
The bar number of message；
Source PTN device sends LB response messages in the two neighboring PTN device same period according to record
Bar number, the number of dropped packets of the link between two neighboring PTN device is calculated, when the number of dropped packets of calculating is 0,
Link performance is normal between determining the two neighboring PTN device；When the number of dropped packets of calculating is not 0, it is determined that
Link performance deteriorates between the two neighboring PTN device.
2. according to the method for claim 1, it is characterised in that the source PTN device is according to record
The bar number of LB response messages is sent in two neighboring PTN device same period, two neighboring PTN is calculated and sets
The number of dropped packets of link between standby, including：
When two neighboring PTN device is source PTN device and middle PTN device, two neighboring PTN is set
The number of dropped packets of link between standby is that source PTN device sends the bar number of LB request messages, with connecing for record
The difference of the bar number for the LB response messages that the middle PTN device received is sent；
When two neighboring PTN device is PTN devices among two, or, middle PTN device and purpose PTN
During equipment, the number of dropped packets of the link between two neighboring PTN device is described two PTN devices of record
Send the difference of the bar number of LB response messages.
3. method according to claim 1 or 2, it is characterised in that methods described further comprises：
The priority for sending the LB request messages and LB response messages is arranged to and layered service provider
The priority of LSP service message is identical.
4. one kind realizes Packet Transport Network PTN performance degradation alignment systems, it is characterised in that the system includes：
Source PTN device, middle PTN device and purpose PTN device；Wherein, source PTN device is that source is safeguarded eventually
PTN device where node MEP, middle PTN device are that the PTN where Maintenance Intermediate Point MIP is set
Standby, purpose PTN device is the PTN device where purpose MEP；
The source PTN device, cycle transmission loopback LB request messages are sent using rapid message；In reception
Between the LB response messages that send of PTN device and purpose PTN device, and record in each cycle and receive respectively
The middle PTN device arrived, and the bar number of the LB response messages of purpose PTN device transmission；According to record
Two neighboring PTN device same period in send LB response messages bar number, calculate two neighboring PTN
The number of dropped packets of link between equipment, when the number of dropped packets of calculating is 0, determine the two neighboring PTN device
Between link performance it is normal；When the number of dropped packets of calculating is not 0, determine between the two neighboring PTN device
Link performance deteriorates；
The middle PTN device, when receiving LB request messages, LB is sent to purpose PTN device direction
Request message, and send LB response messages to source PTN device；
The purpose PTN device, when receiving LB request messages, LB responses are sent to source PTN device
Message.
5. system according to claim 4, it is characterised in that
The source PTN device, specifically for being sent in the two neighboring PTN device same period according to record
The bar number of LB response messages, when calculating the number of dropped packets of link between two neighboring PTN device, when adjacent two
When individual PTN device is source PTN device and middle PTN device, the link between two neighboring PTN device
Number of dropped packets be, source PTN device send LB request messages bar number, the middle PTN with the reception of record
The difference of the bar number for the LB response messages that equipment is sent；When two neighboring PTN device is PTN among two
Equipment, or, when middle PTN device and purpose PTN device, the link between two neighboring PTN device
Number of dropped packets be that described two PTN devices of record send the difference of the bar number of LB response messages.
6. the system according to claim 4 or 5, it is characterised in that
The source PTN device, the priority of LB response messages for sending the LB request messages and receiving
It is arranged to identical with the priority of layered service provider LSP service message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610285690.9A CN107342883A (en) | 2016-05-03 | 2016-05-03 | One kind realizes Packet Transport Network performance degradation localization method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285690.9A CN107342883A (en) | 2016-05-03 | 2016-05-03 | One kind realizes Packet Transport Network performance degradation localization method and system |
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| EP2590365A1 (en) * | 2011-11-07 | 2013-05-08 | Ciena Corporation | Systems and methods for dynamic operations, administration, and management |
| CN103888295A (en) * | 2014-03-07 | 2014-06-25 | 烽火通信科技股份有限公司 | Method and system for achieving LSP quick detection based on loopback in PTN/IPRAN management |
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| CN101986604A (en) * | 2010-10-29 | 2011-03-16 | 中兴通讯股份有限公司 | Link fault positioning method and system of packet transport network (PTN) |
| CN102185719A (en) * | 2011-05-12 | 2011-09-14 | 中兴通讯股份有限公司 | Service link tracking realization method and device |
| EP2590365A1 (en) * | 2011-11-07 | 2013-05-08 | Ciena Corporation | Systems and methods for dynamic operations, administration, and management |
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Application publication date: 20171110 |