CN1917438A - Method for managing available state / time in Ethernet, and performance relevant to bug - Google Patents
Method for managing available state / time in Ethernet, and performance relevant to bug Download PDFInfo
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- CN1917438A CN1917438A CN 200510090860 CN200510090860A CN1917438A CN 1917438 A CN1917438 A CN 1917438A CN 200510090860 CN200510090860 CN 200510090860 CN 200510090860 A CN200510090860 A CN 200510090860A CN 1917438 A CN1917438 A CN 1917438A
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Abstract
The key idea of the invention is: defining the available state and available time in Ethernet; maintaining the available state and available time according to the defective state of Ethernet, and making statistics for the performance parameters relating to the defect in Ethernet according to the information about said available state. The invention associates the available state with the available time, both of which are consistent except the difference of time delay caused by failure detection and recovery, namely the unavailable time appearing in the available state will not exist so as to ensure the consistency between the available state and available time.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of implementation method of upstate and up duration of Ethernet, reach the implementation method of performance management relevant in the Ethernet with defective.
Background technology
Ethernet technology (being called for short the ETH technology) relies on the advantage of its high performance-price ratio to develop to metropolitan area network from local area network (LAN) gradually, and corresponding ports speed also develops into 10G from 10M.The development need of ETH technology and carrier class network require to meet, and could satisfy actual network demand.Wherein OAM (operation and management) is the basic demand of carrier class network to various technology, and described OAM comprises: network failure management mechanism and network performance management mechanism.
At present, in the progress about ETH OAM of some normal structures, fairly perfect at fault management mechanism and performance parameter measurement aspect.Its fault at the ETH network that has defined/performance management mechanism comprises:
(1) ETH-CC (Ethernet continuity check): be used to detect between the ETH MEP (Ethernet Maintenance Entity end points) connective;
(2) ETH-LB (Ethernet Loopback): be used for the detection of connectivity between MEP (Maintenance Entity end points) and MIP (Maintenance Entity the intermediate point)/MEP, and frame delay in the performance parameter and frame delay jitter measurement;
(3) ETH-LT (the link track of Ethernet): be used for fault location;
(4) ETH-AIS (Ethernet alarm indication signal) and ETH-ETH-RDI (the reverse defective sign of Ethernet): be used for the fault warning forward/reverse and suppress;
(5) ETH-LM (the Ethernet loss is measured): the frame loss rate that is used for the measurement performance parameter.
Also have some and performance-relevant parameter, as Error Frame Seconds (errored frame second), Frame Throughput (frame throughput), Frame Tx (transmission frame number), Frame Rx (frames received), Frame Drop parameters such as (frame losing numbers).
For above-mentioned each performance parameter, have only when network is in upstate just meaningful, so the definition of upstate has great importance for the ETH performance measurement relevant with defective.Yet each present standard does not all clearly define the information such as up duration/state of ETH network.
At present, defined up duration in conventional optical network, but its definition obviously has the optical network fault characteristics, as SES (serious mistake second), be defined as follows: if continuous x SES then enters down time, down time comprises this x second.Reenter up duration and need continuous x second of interior no SES, up duration comprises this x second.Simultaneously, also defined SEP (serious mistake second duration), SEP is meant the time period that SES occurs, but can not cause network to enter mistake time period second of down state.Transmit net for SDH, stipulate that above-mentioned x should be 10s second, promptly whether enter or withdraw from down time for the decision of timing standard with 10s.
As can be seen, be at special definition such as optical transport network SDH/PDH at the definition of the up duration of optical-fiber network, be to be the fault foundation with the bit mistake, with SES benchmark definition down time.And be fault with bit according at packet network, as inapplicable among the ETH.
Therefore, also do not have at present the definition of upstate and up duration in the ETH network, make that there is certain defective in the performance management at the ETH network.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide upstate/time and the performance management method relevant in a kind of Ethernet with defective, thereby provide foundation for collecting the performance parameter relevant according to up duration in the Ethernet, perfect OAM performance management at the ETH network with defective.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of method that the upstate and the up duration of Ethernet are realized management, comprising:
A, in Ethernet definition upstate and up duration;
B, safeguard described upstate and up duration according to the defect situation of Ethernet.
Described steps A comprises:
The upstate and the up duration of definition near-end and far-end in Ethernet.
Described step B comprises:
In Ethernet, when detecting defective, then recall preset time and begin to add up the down time parameter information, and enter down state.
Described step B comprises:
In Ethernet, when detecting defective and withdraw from, then recall preset time and continue statistics up duration information, and enter upstate.
Described detected defective comprises:
The dLOC defective is lost in mistake polymerization dMismerge defective, unknown error dUnexpected defective, connection or far-end ETH ME history is indicated the ETH-RDI message to reverse defective.
The Rule of judgment of described detection defective comprises:
The maintenance entity end points can not receive connectivity detection ETH-CC message continuous three times, then determines to occur the dLOC defective;
Perhaps,
The maintenance entity end points is received the OAM message that carries wrong maintenance entity sign MEP ID continuous three times, then determines to occur the dMismerge defective;
Perhaps,
The maintenance entity group endpoint receives that having carried correct maintenance entity identifies continuous three times, and the OAM message of the maintenance entity group endpoint sign MEG ID of mistake then determines to occur the dUnexpected defective.
Described step B also comprises:
When detecting defective, wait for the time that predetermined short interruption is recovered, afterwards, if recover, then continue statistics up duration information, and continue to keep upstate, otherwise, recall preset time and begin to add up down time information, and enter down state.
The present invention also provides a kind of method that realizes the performance management that Ethernet is relevant with defective, comprising:
Safeguard the upstate of Ethernet, and the defective performance parameter of Ethernet is added up according to described upstate.
Described method specifically comprises:
Current when being upstate when determining, then the performance parameter of Ethernet is added up, and recall preset time.
Method of the present invention also comprises:
When described upstate becomes down state, then stop statistics, and recall preset time the performance parameter of Ethernet.
As seen from the above technical solution provided by the invention, the present invention has defined in the ETH network with performance parameter and has measured relevant upstate and up duration, and for performance parameter collection in the ETH network provides clear and definite benchmark, and implementation procedure is short and sweet.
And, when vibration appears in defect state, rely on the exit criteria of down state, can prevent that the frequent handoff procedure between available/down state from appearring in ETH ME in processing.
In addition, also upstate and up duration are connected among the present invention, because be consistent the delay difference that fault detect/recovery brings, there is not situation about intermeshing except that having in both, and promptly do not have the situation that occurs down time in the upstate.
Therefore, the invention enables at the performance management of ETH network more perfect.
Description of drawings
Fig. 1 for of the present invention be that transverse axis illustrates that more clearly near-end/far-end upstate and up duration concern schematic diagram with time;
Fig. 2 is the upstate maintenance state figure of near-end in the Ethernet;
Fig. 3 is the upstate maintenance state figure of far-end in the Ethernet.
Embodiment
Core of the present invention is definition up duration and a upstate in the ETH network, and up duration and upstate are associated, to make things convenient for the realization of performance measurement among the ETH OAM.Among the present invention, also redefine dMismerge among the ETH OAM (mistake polymerization) and dUnexpected (unknown error) defective entry condition, thereby improve OAM performance management consistency.
To the specific implementation of the method for the invention be described in detail below.
In order to simplify following description, at this, at first, suppose that it all is to be to send blanking time with 1s that fault detect message ETH-CC and reverse fault suppress message ETH-ETH-RDI etc., below all be assumed to be prerequisite with this at description of the invention.But in actual use, the transmission of described message can change according to actual conditions at interval.
Network performance measurement has one-way, and in the ETH network, each end points of ETH MEP is measured forward and reverse path network performance parameter respectively.Therefore, be divided into two kinds of situations of near-end and far-end among the present invention and describe entering of up duration and upstate and exit criteria respectively.
The present invention because the ETH business is two-way, therefore, when a direction is in down state, thinks that then the ETH business is unavailable in application process.
And the measurement of ETH network performance parameter has only that to be in upstate just meaningful as ETH, should stop performance parameter and measure when the ETH network is in down state, and consider to recall count value in corresponding error section detection time.
The method that at first Ethernet upstate provided by the invention and up duration is realized describes below.
Wherein, the maintaining method to the upstate/up duration of near-end in the ETH network comprises:
Near-end ETH ME detects defective and enters that (dLOC is lost in connection, mistake polymerization dMismerge, unknown error dUnexpected) moment is as the starting point of down state, enter down time this moment simultaneously, down time need be recalled the failure detection time of 3s, and promptly section also should calculate in the down time failure detection time.
The condition that ETH link (ethernet link) comes back to upstate is: defect state withdraws from and receives correct OAM message in the time period at continuous 10s, if operation ETH-CC, then be to receive correct ETH-CC in the continuous 10s, otherwise be the messages such as ETH-LT or ETH-LB of receiving correct continuous transmission.Detect 3s that defect state withdraws from process need also in the limit of consideration of 10s, above-mentioned 10s should calculate in up duration.
Management to the upstate/up duration parameter of far-end in the ETH network comprises:
Far-end ETH ME (Ethernet maintenance entity) receives the starting point of the moment of 1 ETH-RDI (the reverse defective indication of Ethernet) message as down state, enter the down time section this moment, the down time section need be recalled 6s, specifically comprises the 2s time of ETH-RDI transmitting time 1s, opposite end ETH ME hold off (a kind of method that prevents fault vibration) when detecting fault and far-end 3s time of delay with respect to near-end.
Far-end ETH ME detects the condition that ETH link (ethernet link) ETH business comes back to upstate and up duration: do not receive the ETH-RDI message in the 10s continuously.This 10s adds 3s and should calculate in up duration with respect to the common 13s time of the delay of near-end ME.
Need to prove, consider the dLOC defective enters in present Y.17ethoam draft regulation and dMismerge, the regulation that the dUnexpected defective enters is inconsistent with regard to time of delay, therefore, handle for unified, the Rule of judgment that needs described dMismerge of modification and dUnexpected defective to enter, specifically can be revised as:
DMismerge defective Rule of judgment: MEP (maintenance entity group termination end points) receives the OAM message that has carried wrong MEG ID (maintenance entity group identification) continuous three times;
DUnexpected defective Rule of judgment: MEP receives the OAM message that has carried the still wrong MEP ID of correct MEG ID (maintenance entity group termination sign) continuous three times
The condition of determining to occur the dLOC defective is to connect three times not receive the ETH-CC message, therefore, the present invention carries out after the above-mentioned modification, three kinds of defective Rule of judgment basically identicals, and and the entry condition of far-end down state is mapped, and promptly all is entering with 3 seconds time detecting defect state.
For the relation of the up duration/state among the present invention is described more clearly, accompanying drawings ETH ME near-end and far-end down time enter and withdraw from situation more below.
As shown in Figure 1, corresponding processing procedure specifically comprises:
At near-end, when detecting defective, then recall 3 seconds, be added to down time, when definite defective withdraws from, and the interior zero defect of 10s produces continuously, then enters upstate.Then recall 10 seconds statistics and be up duration;
At far-end, when receiving for the first time the ETH-RDI message, then recall 6 seconds, be added to down time, when when not receiving the ETH-RDI message continuous 3 times, then withdraw from the remote bug state, and, then enter upstate not receiving ETH-RDI in the 10s continuously.Then recall 13 seconds statistics up durations.
Among the present invention, the notion of a short interruption can also be set, promptly when defective appears in near-end in the network or far-end, but (for example 3s) recovers normal again in predetermined one short time, then will this time period not count down time, simultaneously, do not think that this time period enters down state yet.
Based on the above-mentioned method that the upstate and the up duration of Ethernet are realized management, the invention provides and realize ethernet performance parameter measurement flow process, will be elaborated below.
As shown in Figure 2, ETH ME near-end performance parameter measurement flow process specifically comprises:
Step 21: the performance parameter counter is clear 0, and begin counting;
Described performance parameter is meant parameter information relevant with upstate and up duration in the network, promptly with network in the relevant performance parameter information of defective that occurs, as LOF, frame time-delay, frame delay jitter etc.;
Step 22: judge whether to detect defective, if confirm to enter defect state, then execution in step 23, otherwise, execution in step 22;
Step 23: stop described performance parameter rolling counters forward, and recall 3 seconds, be about to Counter Value and deduct preceding 3 seconds count value, execution in step 24;
Step 24: judge whether defective withdraws from, if withdraw from, then execution in step 25, otherwise, continue execution in step 24, promptly continue to judge whether defective withdraws from;
Step 25: receive correct OAM message in continuous 10 seconds, then execution in step 26, otherwise execution in step 24;
Like this, can prevent the frequent handoff procedure between available/down state that ETH ME runs in processing;
Step 26: the performance parameter counter continues counting, and recalls 10 seconds, promptly adds the count value of going forward 10 seconds.
As shown in Figure 3, ETH ME far-end performance parameter measuring process specifically comprises:
Step 31: the performance parameter counter is clear 0, and begin counting;
Describe described in described performance parameter such as the step 21, no longer describe in detail herein;
Step 32: judge whether to receive the ETH-RDI message, if receive, then execution in step 33, otherwise, execution in step 32;
Step 33: stop described performance parameter rolling counters forward, and recall 6 seconds, be about to Counter Value and deduct preceding 6 seconds count value, execution in step 34;
Step 34: judge whether not receive the ETH-RDI message continuous 3 times, if then execution in step 35, otherwise, continue execution in step 34;
Step 35: do not receive the ETH-RDI message in continuous 10 seconds, then execution in step 36, otherwise execution in step 34;
Step 36: the performance parameter counter continues counting, and recalls 13 seconds, promptly adds the count value of going forward 13 seconds.
In the said method, the notion of a short interruption has also been proposed, therefore, in Fig. 2 and Fig. 3, after detecting defective or receiving the ETH-RDI message, also can wait for the time (as 3s) that a short interruption is recovered, afterwards, if fault recovery, then still be in upstate and up duration, continue performance params-count device counting,, then stop the performance parameter rolling counters forward if do not recover.And when fault recovery, still can be according to the step 31 of the step 21 among corresponding Fig. 2 to step 26 or Fig. 3 to the parameter measurement of step 36 execution performance.
In sum, the present invention has defined in the ETH network with performance parameter and has measured relevant upstate and up duration, for performance parameter collection in the ETH network provides clear and definite benchmark.Simultaneously, the present invention also connects up duration and upstate, both are consistent except that the delay difference of bringing because of fault detect/recovery is arranged, there is not situation about intermeshing, promptly there is not the situation that occurs down time in upstate and the up duration, guaranteed the consistency of upstate and up duration information.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of method that the upstate and the up duration of Ethernet are realized management is characterized in that, comprising:
A, in Ethernet definition upstate and up duration;
B, safeguard described upstate and up duration according to the defect situation of Ethernet.
2, upstate and up duration implementation method to Ethernet according to claim 1 is characterized in that described steps A comprises:
The upstate and the up duration of definition near-end and far-end in Ethernet.
3, upstate and up duration implementation method to Ethernet according to claim 1 and 2 is characterized in that described step B comprises:
In Ethernet, when detecting defective, then recall preset time and begin to add up the down time parameter information, and enter down state.
4, the method that the upstate and the up duration of Ethernet are realized management according to claim 3 is characterized in that described step B comprises:
In Ethernet, when detecting defective and withdraw from, then recall preset time and continue statistics up duration information, and enter upstate.
5, the method that the upstate and the up duration of Ethernet are realized management according to claim 4 is characterized in that described detected defective comprises:
The dLOC defective is lost in mistake polymerization dMismerge defective, unknown error dUnexpected defective, connection or far-end ETH ME receives reverse defective indication ETH-RDI message.
6, the method that the upstate and the up duration of Ethernet are realized management according to claim 5 is characterized in that the Rule of judgment of described detection defective comprises:
The maintenance entity end points can not receive connectivity detection ETH-CC message continuous three times, then determines to occur the dLOC defective;
Perhaps,
The maintenance entity end points is received the OAM message that carries wrong maintenance entity sign MEP ID continuous three times, then determines to occur the dMismerge defective;
Perhaps,
The maintenance entity group endpoint receives that having carried correct maintenance entity identifies continuous three times, and the OAM message of the maintenance entity group endpoint sign MEG ID of mistake then determines to occur the dUnexpected defective.
7, the method that the upstate and the up duration of Ethernet are realized management according to claim 3 is characterized in that described step B also comprises:
When detecting defective, wait for the time that predetermined short interruption is recovered, afterwards, if recover, then continue statistics up duration information, and continue to keep upstate, otherwise, recall preset time and begin to add up down time information, and enter down state.
8, a kind of method that realizes the performance management that Ethernet is relevant with defective is characterized in that, comprising:
Safeguard the upstate of Ethernet, and the defective performance parameter of Ethernet is added up according to described upstate.
9, the method for the performance management that realization Ethernet according to claim 8 is relevant with defective is characterized in that, described method specifically comprises:
Current when being upstate when determining, then the performance parameter of Ethernet is added up, and recall preset time.
10, according to Claim 8 or the method for the 9 described realization Ethernets performance management relevant, it is characterized in that this method also comprises with defective:
When described upstate becomes down state, then stop statistics, and recall preset time the performance parameter of Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510090860XA CN100525207C (en) | 2005-08-18 | 2005-08-18 | Method for managing available state / time in Ethernet, and performance relevant to bug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510090860XA CN100525207C (en) | 2005-08-18 | 2005-08-18 | Method for managing available state / time in Ethernet, and performance relevant to bug |
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| Publication Number | Publication Date |
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| CN1917438A true CN1917438A (en) | 2007-02-21 |
| CN100525207C CN100525207C (en) | 2009-08-05 |
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| CNB200510090860XA Expired - Fee Related CN100525207C (en) | 2005-08-18 | 2005-08-18 | Method for managing available state / time in Ethernet, and performance relevant to bug |
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Granted publication date: 20090805 Termination date: 20160818 |