CN101170505B - A method and device for processing failure at RPR site - Google Patents
A method and device for processing failure at RPR site Download PDFInfo
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- CN101170505B CN101170505B CN2007101787122A CN200710178712A CN101170505B CN 101170505 B CN101170505 B CN 101170505B CN 2007101787122 A CN2007101787122 A CN 2007101787122A CN 200710178712 A CN200710178712 A CN 200710178712A CN 101170505 B CN101170505 B CN 101170505B
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Abstract
The invention discloses a technic proposal for handling faults of a resilient packet ring (RPR) station, i.e., a protection event generated when the status of handling faults of RPR station changes, wherein, an internal interface fault (Mate SF) event and an internal interface fault delete (Mate IDLE) event are included. When the internal interface fault is dealt with, the RPR station determines the effecting direction of the Mate SF according to the own fault, and makes the effecting direction of the Mate SF is on the side of the station that the fault exists. Therefore, the technic proposalfor handling faults of RPR provided in the invention can handle the internal interface event and develop the effective fusion of the processing of the internal interface event and the processing of the prior other protection events; also, in processing the Mate SF event, the invention can ensure the uppermost connectivity of the upper and the lower ring services of the RPR station and the maximumcommunication of the RPR rings.
Description
Technical field
The present invention relates to Resilient Packet Ring (RPR, Resilient Packet Ring) technology, refer to a kind of method and device of processing failure at RPR site especially.
Background technology
RPR is a kind of fiber optic ring network based on enhanced scalability and elasticity technology, can transmit packet-based service traffics effectively, comprises at least two mutual reciprocal optical fiber subrings.RPR since its in many-sided advantages such as interface bandwidth, bandwidth availability ratio and disturbance switching abilities, RPR is subjected to the favor of more and more operators gradually.
Referring to Fig. 1, Fig. 1 is the networking structure figure of RPR ring, comprises 6 RPR websites on this RPR ring.On the RPR ring, outside monocycle along clockwise direction is called 0 ring, and inboard monocycle in the counterclockwise direction is called 1 ring.Wherein, the link section of being called (SPAN) between two adjacent R PR websites, the SPAN that can not be used to transmit data is called the limit, SPAN why can become the limit be because this SPAN go up that fault causes can't be at this SPAN transmitting data.For each website, all there are two SPAN, are called the west to SPAN and east orientation SPAN.Wherein, the west is used to receive 0 loop data and sends 1 loop data to SPAN, and east orientation SPAN is used to receive 1 loop data and sends 0 loop data.
The RPR website is monitored link condition in real time, when breaking down or generating corresponding protection incident during fault recovery.Processing in the RPR website (PROCESS) state machine is according to the guard mode of other websites on self current guard mode and the RPR ring preserved; protection incident to current generation is handled; obtain the corresponding guard mode and the direction of this guard mode correspondence; and to the guard mode of domain issue self, and then realize that the protection of the domain switches.In the guard mode that obtains is SF protection, the RPR website then can make this SF protection counterparty to SPAN become the limit.
SPAN on the RPR ring can take place usually as Signal Fail (SF), signal attenuation (SD, fault such as SignalDegrade).When the SF fault takes place, generate automatic signal inefficacy (AUTO_SF) incident, the processing of this protection course of event PROCESS state machine generates the SF protection; When the SD fault takes place, generate automatic signal decay (AUTO_SD) incident, the processing of this protection course of event PROCESS state machine generates the SD protection.If the RPR website has generated the SF protection, then can on the corresponding direction of this SF protection, generate the limit, if the RPR website has generated the SD protection, then not necessarily generate the limit in the corresponding direction of this SD protection, also need to determine according to other parameters.
The RPR website is breaking down and fault when disappearing except meeting; generate the protection incident; carry out respective handling, also can under some other situation, generate the protection incident, for example dispose Forced Switch (FS) and the manual MS (Manual Switch) that switches waits under the situation of ordering the user.The FS order can generate management Forced Switch (ADMIN_FS) incident, and the MS order can generate, manage manual (ADMIN_MS) incident of switching.The keeper of RPR website utilizes these configuration orders that the guard mode of this website is controlled.For example, the FS order is used for the SPAN of appointment is generated the limit.In order to simplify description; in the introduction in this article, the Signal Fail fault is replaced SF with its english abbreviation, the protection representations of events of SF correspondence is that the guard mode of SF incident, SF incident correspondence is expressed as the SF protection; other faults and configuration order situation are identical, are not described in detail in this.In addition, the protection incident that the RPR website generates in the prior art also have waiting timer expire (WTR_EXP) incident, receive topology protection control message (TP_RCV) incident, idle (ADMIN_IDLE) incident of management and automatic fault (AUTO_IDLE) incident that disappears.
On the RPR ring, except the SPAN that connects the RPR website can break down, also can break down in the inside of RPR website.The RPR website is made up of to the MAC processing entities to the west of SPAN east orientation MAC processing entities and a processing west of a processing east orientation SPAN, also can break down with western internal interface (Mate Interface) to the MAC processing entities in the inner east orientation MAC processing entities that connects of RPR website.The fault that other go up to take place with SPAN is different, and the fault of Mate Interface is owing to be positioned at website inside, so there is not directivity in Mate Interface fault for website.
At present, when the Mate Interface in the RPR website breaks down, normally generate the SF protection, for example be fixed on east orientation simulation SF fault and generate the SF protection a fixing direction simulation SF fault.According to aforesaid introduction, when the RPR website generates the SF protection, must on the direction of correspondence, generate the limit, the east orientation SPAN that is about to this RPR website generates the limit.At this moment, if the west of this website is to also existing the limit, this RPR website will owing in east, the west both direction all generated Bian Erzai and can not receive data from the RPR ring.Why this RPR website can generate the SF protection at east orientation, is because this RPR website internal interface breaks down, and is not that east orientation SPAN can not transmit data but in fact.Therefore, this processing mode will cause this website to disconnect fully from the RPR ring, not guarantee the largest connected property of RPR ring.
Summary of the invention
In view of this, the invention provides a kind of method of RPR website handling failure, method provided by the present invention can be handled Mate Interface fault, and can ensure the largest connected property of RPR ring.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of processing failure at RPR site, RPR website are handled protection incident that generates when the faults itself state changes and the protection incident of receiving from the RPR ring, and this method comprises:
Described RPR website judges that whether current protection incident is and the relevant internal interface incident of internal interface fault Mate SF,
If, in current protection incident during for the Mate SF incident that Mate SF takes place generates, selecting the RPR website to have a side of fault is the direction that comes into force of current Mate SF, and in this direction analog signals inefficacy SF generation SF protection that comes into force, current protection incident be internal interface fault disappearance MateIDLE generate Mate IDLE incident the time, whether there are Forced Switch FS or SF on SF protection of on Mate SF comes into force direction, cancelling simulation SF and generating and the direction of judging this cancellation SF protection, when having described FS or SF, simulation SF generates the SF protection on this direction;
If not, handle current protection incident.
In addition, the present invention also provides a kind of device of RPR website handling failure, when this device can be handled the Mate Interface fault of RPR website generation, and ensures the largest connected property that RPR encircles.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of device of processing failure at RPR site, this device comprise output unit, control unit, interface fault processing unit, interface fault disappearance processing unit and performance element;
Described output unit receives the protection incident from the Resilient Packet Ring website; And when the faults itself state changes, generate the protection incident, and be included in and generate Mate SF incident when internal interface fault Mate SF takes place, when described internal interface fault disappearance Mate IDLE, generate Mate IDLE incident; The protection incident of receiving and generate is sent to described control unit to be handled;
Described control unit receives the protection incident that described output unit sends, when the current protection incident of receiving is Mate SF incident, selecting current RPR website to have a side of fault is the direction that comes into force of current Mate SF, and in this direction indication interface fault processing unit processes that comes into force; When current protection incident is Mate IDLE incident, in the Mate SF direction indication interface fault disappearance processing unit processes that comes into force; When the current protection incident of receiving was not Mate SF incident and Mate IDLE incident, the indication performance element was handled the current protection incident of receiving;
Described interface fault processing unit generates the SF protection according to the indication of described control unit at the indicated direction analog signals inefficacy SF that comes into force;
Described interface fault disappearance processing unit is according to the indication of described control unit, the SF protection of on the indicated direction that comes into force, cancelling simulation SF and generating, and when having Forced Switch FS or SF on the direction of this cancellation SF protection, simulation SF generates the SF protection on this direction;
Described performance element is handled current protection incident.
The technical scheme of a kind of RPR website handling failure provided by the present invention, the protection incident that generates when RPR website handling failure state changes is comprising Mate SF incident and Mate IDLE incident.When handling the internal interface fault, the RPR website is determined the direction that comes into force of this Mate SF according to the failure condition of self, makes the direction that comes into force of Mate SF have a side of fault at website.Therefore, the technical scheme of a kind of RPR website handling failure provided by the invention not only can be handled the internal interface incident, makes the processing of internal interface incident and the processing of existing other protection incidents are effectively merged; And can guarantee the largest connected property that ring is professional and RPR encircles up and down of current RPR website to greatest extent to the processing of MateSF incident.
Description of drawings
Fig. 1 is the networking structure schematic diagram of RPR ring in the prior art;
Fig. 2 is the exemplary process diagram of embodiment of the invention method;
Fig. 3 is the exemplary block diagram of embodiment of the invention device;
Fig. 4 is preferred embodiment one an effect schematic diagram of the present invention;
Fig. 5 is the structure chart of preferred embodiment device of the present invention;
Fig. 6 is the another effect schematic diagram of preferred embodiment of the present invention;
Fig. 7 is the process chart of initial treatment unit in the preferred embodiment of the present invention;
Fig. 8 is for checking the process chart of processing unit in the preferred embodiment of the present invention;
Fig. 9 is the process chart of interface fault disappearance processing unit in the preferred embodiment of the present invention;
Figure 10 is the process chart of interface fault processing unit in the preferred embodiment of the present invention;
Figure 11 is the process chart of performance element in the preferred embodiment of the present invention.
Embodiment
In the detailed description of this part, only, illustrate and described preferred embodiment of the present invention by to implementing the example of the desired best mode of inventor of the present invention.It will be appreciated that and not deviate under the prerequisite of the present invention, it is made amendment with regard to each conspicuous aspect.Correspondingly, it is exemplary in itself that drawing and description should be regarded as, rather than restrictive.
In order to guarantee the largest connected property of whole RPR ring, when Mate Interface fault takes place in the RPR website, can determine the direction that comes into force of this Mate Interface fault according to the failure condition of current RPR website, selecting the RPR website to have a side of fault is the direction that comes into force of current Mate Interface fault, to guarantee the largest connected property of whole RPF ring.
In the specific implementation process of technical solution of the present invention, consider prior art to break down, fault disappears and the processing of configuration order, all is that Mr. becomes corresponding protection incident, generates corresponding guard mode by the protection incident is handled then.Therefore in order to make technical scheme of the present invention possess practicality; make technical scheme of the present invention can handle Mate Interface fault; also can handle existing other protection incidents, realize unitized processing, can expand protection incident of the prior art.The RPR website generates Mate SF incident when Mate Interface fault takes place; When Mate Interface fault disappears, generate Mate IDLE incident.The RPR website need be handled according to the type of protection incident when handling the protection incident.In this article, in order to simplify description, can abbreviate Mate Interface fault as Mate SF; Abbreviate the disappearance of Mate Interface fault as Mate IDLE, these two protection incidents are referred to as the internal interface incident.
Referring to Fig. 2, Fig. 2 is the exemplary process diagram of RPR website handling failure method of the present invention.The protection incident that generates when RPR website handling failure state changes, comprising: in step 201, the RPR website judges whether current protection incident is the internal interface incident relevant with Mate SF, if, execution in step 202; Otherwise, execution in step 203.In step 202; in current protection incident during for the Mate SF incident that Mate SF takes place generates; determine the direction that comes into force of this Mate SF according to the failure condition of current RPR website; and simulation SF generates the SF protection on this comes into force direction; current protection incident be internal interface fault disappearance Mate IDLE generate Mate IDLE incident the time, cancellation simulation SF on Mate SF comes into force direction and the SF protection that generates.In step 203, handle current protection incident according to the handling process of prior art.
Malfunction described in the said method exemplary flow comprises: the configuration order that website breaks down, fault disappears and the keeper assigns.
Referring to Fig. 3, Fig. 3 is the device of RPR website handling failure of the present invention in addition, and this device comprises output unit, control unit, interface fault processing unit, interface fault disappearance processing unit and performance element.
Wherein, described output unit generates the protection incident when the faults itself state changes; be included in and generate Mate SF incident when internal interface fault Mate SF takes place; when described internal interface fault disappearance Mate IDLE, generate Mate IDLE incident, the protection incident that generates is sent to described control unit handles.
Described control unit receives the protection incident, when the current protection incident of receiving is Mate SF incident, determines the direction that comes into force of this Mate SF according to the failure condition of current website, and in this direction indication interface fault processing unit processes that comes into force; When current protection incident is Mate IDLE incident, in the MateSF direction indication interface fault disappearance processing unit processes that comes into force; When the current protection incident of receiving was not Mate SF incident and Mate IDLE incident, the indication performance element was handled the current protection incident of receiving.Wherein, the protection incident of described reception not only comprises the protection incident that output unit generates, and also comprises the protection incident from other RPR websites on the RPR ring.
Accordingly, described interface fault processing unit generates the SF protection according to the indication of described control unit at the indicated direction analog signals inefficacy SF that comes into force; Described interface fault disappearance processing unit is cancelled the SF protection of simulating SF and generating according to the indication of described control unit on the indicated direction that comes into force; Described performance element is handled current protection incident according to the handling process of prior art.
Wherein, cancellation simulation SF on Mate SF comes into force direction and after the SF protection that generates, can also further judge on described Mate SF comes into force direction, whether have FS or SF, if then simulate SF generation SF and protect.Cancellation simulation SF and after the SF protection that generates, further judge whether have FS or SF on described Mate SF comes into force direction on Mate SF comes into force direction why is to produce for fear of as shown in Figure 4 situation.In order to simplify description, in the introduction hereinafter, abbreviate the RPR website as website.
Figure 4 shows that the RPR ring of forming by four RPR website S1, S2, S3 and S4.At first, the west of S2 is the limit to SPAN, and there is the SF protection in correspondence; Then Mate SF has taken place in website S2, has generated Mate SF incident, according to this Mate SF of above-mentioned processing come into force direction for the west to.If the current Mate IDLE that taken place, the SF protection that then can be generates to cancellation in the west, and then will eliminate the west to the limit.Since the west to the limit correspondence two faults, therefore when Mate SF disappeared, another one fault SF did not disappear, and therefore also need protect to generating SF in the west, and generate the limit on the direction of correspondence.In technical scheme of the present invention, the main situation that generates guard mode of introducing, identical as for the processing after generating guard mode with processing of the prior art, be not described in detail in this.
Determine the coming into force during direction of this Mate SF according to the failure condition of current RPR website,, therefore can determine the direction that comes into force of Mate SF according to the guard mode that website is preserved because the guard mode that website is preserved can reflect the malfunction of website both sides.Therefore it is a kind of more serious fault on the RPR ring that SPAN becomes the limit, website can be existed the direction on limit to be defined as the direction that comes into force of Mate SF.When SPAN became the limit, this limit must upwards exist SF protection or FS protection the website counterparty.Simultaneously; because the limit not necessarily can be protected or the FS protection by equal corresponding SF on two websites of this limit correspondence; for example; the west of website B is the limit to SPAN on RPR ring shown in Figure 1; website B in the west to must be corresponding SF protection or FS protection, but another website A of this limit correspondence might not corresponding SF protection or FS protection at east orientation.Therefore whether there is the limit in the both sides of determining a website, can judges at first whether the guard mode that website self is preserved exists SF protection or FS protection; When not existing, judge again whether neighbor site exists FS protection or SF protection on the direction of current website.
Technical solution of the present invention is defined as the direction that there is the limit in website except the direction of considering Mate SF is come into force, and can also not exist under the situation on limit direction that Mate SF come into force to be defined as on the direction of the relatively poor SPAN of link-quality at website.The link-quality of website also can determine by the guard mode of self preserving, for example, website in the west when having preserved the guard mode of SD, represent this website in the west link-quality on SPAN relatively poor.So, generate SF protection and generate limit by simulation SF on the relatively poor direction of link-quality this moment, both guaranteed the connectedness of opposite side link, and then guaranteed the connectedness of RPR ring.Concrete implementation also can at first judge self whether there is the SD protection, under non-existent situation, judges whether neighbor site exists the SD protection on the direction of current website again.
The direction of the arbitrary SD of existence of current website protection is being come into force during direction the SD protection on the described direction that comes into force that suspends as current Mate SF.On coming into force direction, Mate SF after the cancellation SF protection, judges on this comes into force direction, whether there is the SD protection that is suspended, if then cancel suspending of described SD protection; Otherwise, finish current handling process.
In addition, when the protection incident of the current generation of RPR website is not the internal interface incident, can protect the situation of the particular type and the current Mate of the existence SF of incident, determine to handle the concrete mode of current protection incident according to this.Current when not having Mate SF, according to the current protection incident of normal process flow processing.Current when having Mate SF, the total treatment principle of technical solution of the present invention is, eliminates the influence of original Mate SF to guard mode earlier, handles when the protection incident that advance into again, considers original Mate SF at last again.
When being AUTO_SF incident or management Forced Switch ADMIN_FS incident for current protection incident, there is Mate SF at definite current website, when the SF protection that existence simulation SF generates, handle before the current protection incident, on coming into force direction, cancels Mate SF the SF protection of simulating SF and generating; When the SF protection that does not exist simulation SF to generate, then handle current protection incident according to prior art.
When receiving to fault disappearance incident; comprise ADMIN_IDLE incident and AUTO_IDLE incident; when there is Mate SF in current website; then after handling current protection incident; simulation Mate SF incident; determine the direction that comes into force of this Mate SF according to the failure condition of website after the current protection incident of processing, and on this comes into force direction, simulate SF generation SF protection.
For receive when the AUTO_SD incident, there is Mate SF in current website, when there is the SF protection that simulation SF generates in current website, before handling current protection incident, the SF protection that cancellation simulation SF generates; After handling current protection incident, simulation Mate SF incident is determined the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and is generated SF protection at this direction analog signals inefficacy SF that comes into force; When current website does not exist simulation SF to generate the SF protection, handle current protection incident.
Below enumerate the preferred embodiment of technical solution of the present invention, the technical scheme that this embodiment provided can be handled above-mentioned mentioned various situations, now is described in detail as follows.
Referring to Fig. 5, Fig. 5 is the structure chart of this preferred embodiment device.Device shown in the present embodiment also can be described as state machine.This device comprises output unit, control unit, interface fault processing unit, interface fault disappearance processing unit and performance element equally.In this preferred embodiment, on the whole, output unit is mainly used to generate the protection incident; The initial treatment unit is used to receive the protection incident, and according to the guard mode of current website, output intermediateness Mate SF disappears or Mate SF produces to checking processing unit.Check that processing unit is used for the guard mode of preserving according to the intermediateness and the current website of the output of initial treatment unit; determine the direction that comes into force of Mate SF, and determine where current protection incident upwards enters disappearance processing unit, interface fault processing unit or performance element and handle.Wherein, the interface fault processing unit is mainly used in simulation SF fault and generates the SF protection; The being mainly used in SF that cancels simulation SF and generate of interface fault disappearance processing unit protects; Performance element is mainly used in and handles according to the handling process of prior art is not the protection incident of internal interface incident.Now to the function of each unit and between annexation specifically be described below.
Wherein, interface fault disappearance processing unit can also be after the existing protection of cancellation on the indicated direction that comes into force, and when having FS or SF on the indicated direction that comes into force, simulation SF generates the SF protection, and its reason is for fear of the described mistake of Fig. 4 occurring.
In addition, described control unit comprises the initial treatment unit and checks processing unit.Concrete, when Mate SF incident was received in described initial treatment unit, when having Forced Switch FS protection or SF protection on website east, place, west two directions, output intermediateness Mate SF disappeared to described inspection processing unit; When not having Forced Switch FS protection or SF protection on website east, place, west two directions, output intermediateness Mate SF produces to described inspection processing unit.When described inspection processing unit disappears for Mate SF in the intermediateness of receiving, when determining the current Mate of existence SF, with arbitrary direction that comes into force that has the direction of Forced Switch FS protection or SF protection as current Mate SF; When the intermediateness of receiving produces for Mate SF; current protection incident is under the situation of Mate SF incident; when having FS protection or SF protection on the direction of neighbor site at current website; with the direction of the arbitrary FS of existence protection or SF protection the direction that comes into force as current Mate SF; when not having FS protection or SF protection on the direction of neighbor site at current website, with the come into force direction of either direction as current Mate SF.Accordingly, described interface fault disappearance processing unit is after the existing protection of cancellation on the indicated direction that comes into force, and when having FS protection or SF protection on the indicated direction that comes into force, simulation SF generates the SF protection.
Concrete, described inspection processing unit is before with the come into force direction of either direction as current Mate SF, judge whether current website exists signal attenuation SD protection, if exist, with the direction of the arbitrary SD of the existence protection of current website the direction that comes into force as current Mate SF; If there is no, judge whether neighbor site exists SD protection on the direction of current website, if, with the direction of the arbitrary SD of existence protection the direction that comes into force as described Mate SF, otherwise, with the come into force direction of either direction as current Mate SF.
In addition, described performance element writes down the current SD protection that is suspended after there be the direction that comes into force of direction as current Mate SF of SD protection in any one with this website.Accordingly, described interface fault disappearance processing unit is cancelled on Mate SF comes into force direction after the SF protection, when having the SD protection that is suspended on this comes into force direction, cancels suspending and deleting corresponding record of this SD protection.
In addition; described initial treatment unit receive not for the protection incident of Mate SF incident and Mate IDLE incident the time; having Mate SF and current protection incident at current website is that output intermediateness Mate SF disappears to described inspection processing unit under the situation of automatic signal inefficacy AUTO_SF incident or management Forced Switch ADMIN_FS incident.Accordingly, described inspection processing unit determines that there is Mate SF in current website after receiving that Mate SF disappears, and when there was the SF protection of simulation SF generation in website, indication internal interface fault disappearance processing unit was handled on Mate SF comes into force direction; When there was not the SF protection of simulation SF generation in website, the indication performance element was handled current protection incident.Described internal interface fault disappearance processing unit after the existing protection of cancellation, is simulated SF again and is generated the SF protection on the indicated direction that comes into force when current protection incident is AUTO_SF incident or ADMIN_FS incident.
Described initial treatment unit is being received fault disappearance incident, when there is Mate SF in current website, is being exported intermediateness Mate SF and generate to described inspection processing unit.Accordingly, after described inspection processing unit receives that Mate SF generates, be fault disappearance incident and current website when having Mate SF in current protection incident, the indication performance element is handled current protection incident; And after handling current protection incident, simulation Mate SF incident is determined the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and is generated SF protection at this direction analog signals inefficacy SF that comes into force.
When the automatic signal that described initial treatment unit is received decays the AUTO_SD incident, exist at current website under the situation of Mate SF, output intermediateness Mate SF generates to described inspection processing unit.Accordingly, after described inspection processing unit receives that Mate SF generates, in current protection incident is that AUTO_SD incident and current website are when existing Mate SF, when there is the SF protection of simulation SF generation in website, in this Mate SF direction cancellation SF protection that comes into force, and indicate described performance element to handle current protection incident, after current protection event handling finishes, simulation Mate SF incident, determine the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and generate SF protection at this direction analog signals inefficacy SF that comes into force; Do not exist simulation SF to generate the SF protection at website, the indication performance element is handled current protection incident.
Scene shown in Figure 6 for before Mate SF upwards come into force in the west, and generated corresponding Mate SF protection, current at east orientation the SD fault has taken place, generated the AUTO_SD incident.At this moment, the processing output intermediateness Mate SF through the initial treatment unit produces; Through checking the processing of processing unit, S2 at first cancels the MATE SF protection of west on SPAN, makes current AUTO_SD incident enter existing PROCESS state machine again and handles, and generates the SD protection at east orientation.Then, the MateSF that originally was cancelled restarts, and generating on the SD direction, enters the interface fault processing unit processes, regenerates MATE SF protection, and the SD protection is suspended.At last,, generated Mate SF protection at east orientation when the end-state of pre-treatment AUTO_SD incident is, and the SD protection that suspended.
Above-mentionedly mentioned generating the specific implementation of SF protection at the Mate SF direction analog signals inefficacy SF that comes into force, can be that simulation AUTO_SF incident enters existing PROCESS state machine and handles and obtain the SF protection; Cancellation simulation SF on Mate SF comes into force direction and the specific implementation of the SF protection that generates can be that simulation automatic fault (AUTO_IDLE) incident that disappears enters existing PROCESS state machine and handles the SF protection that cancellation generates on Mate SF comes into force direction.
In order better to describe the state machine that the technical program provided, next coming in order describe in detail to the handling process of each unit.
In the handling process of present embodiment; Mate SF corresponding priorities can be set only be lower than FS and SF; so just can only judge whether to carry out the operation corresponding, and then the type of protection incident and guard mode be judged with regard to not needing with FS or SF according to priority.
Wherein, described output unit generates the protection incident when the faults itself state changes, and is included in when Mate SF takes place, and generates Mate SF incident, when Mate IDLE, generates Mate IDLE incident; And the protection incident that will generate is sent to initial control unit processing.
Referring to Fig. 7, Fig. 7 is the process chart of the initial treatment unit that present embodiment provided, and when being used to receive the protection incident of output unit transmission, determines and the output intermediateness.Concrete processing procedure is as follows:
In step 701, judge whether the protection incident of current generation is Mate Interface incident, if, execution in step 702; Otherwise, execution in step 704.
Here the Mate Interface incident of indication comprises Mate SF incident and Mate IDLE incident.
In step 702, judge whether the protection incident of current generation is Mate SF incident, if then execution in step 703; Otherwise, execution in step 707.
In step 703, judge whether this website east, west two directions exist than the high protection of Mate SF priority, if then execution in step 708; Otherwise, execution in step 707.
In the present embodiment; because being set, the priority of Mate SF only is lower than FS or SF; therefore the high protection of ratio Mate SF priority of indication here just is meant, whether has had FS protection or SF protection, represents that then there is the limit in this website in the side of this guard mode correspondence when having corresponding protection.Here, judge whether this website two directions have existed than the high protection of Mate SF priority, be meant that then result of determination is for existing as long as there is a direction to exist than the high protection of Mate SF priority in this website two directions.
In step 704, judge whether current website has existed Mate SF, if then execution in step 705; Otherwise, execution in step 708.
In step 705, judge whether the priority of the protection incident of current generation is higher than Mate SF incident, if then execution in step 708; Otherwise, execution in step 706.
Here, the priority between protection incident and the guard mode is equal to the priority between the fault, that is to say, if the priority height of fault is all high to the priority of the priority of the protection incident of this fault correspondence and guard mode.
In step 706, judge the guard mode that whether necessarily has high priority after the current protection event handling, if, execution in step 708; Otherwise, execution in step 707.
The judgement is here mainly judged according to the relation between protection incident and the guard mode that generated.After the protection event handling, last guard mode is not necessarily corresponding with this protection incident.For example, AUTO_SD incident, the not necessarily SD that generates at last protection.But for some protection incidents are arranged, the guard mode that obtains is certain corresponding with the protection incident.For example the AUTO_SF incident is bound to generate the SF protection; The ADMIN_FS incident is bound to generate the FS protection; The ADMIN_IDLE incident is bound to make the FS protection to disappear; The AUTO_IDLE incident is bound to make the SF protection to disappear.Judge the guard mode that whether necessarily has high priority after the current protection event handling, just be meant according to this dealing with relationship to judge whether to be bound to exist the guard mode of high priority.For example when current protection incident was the AUTO_SD incident, the result of this judgement was for denying.
In the description of this paper, the guard mode of high priority is meant SF protection and FS protection.In addition, ADMIN_IDLE incident and AUTO_IDLE incident are referred to as fault disappearance incident.
In step 707, output Mate SF produces, and finishes the processing of flow process shown in Figure 7.
In step 708, output Mate SF disappears, and finishes the processing of flow process shown in Figure 7.
Flow process by as shown in Figure 7 can be exported intermediateness Mate SF in the following cases and produce as can be known, and comprising: 1. the protection incident of current generation is a Mate SF incident, and there is not the situation of the protection higher than Mate SF priority in this website both direction; 2. the protection incident of current generation is not the MateInterface incident, but the low situation of priority ratio Mate SF Event Priority of current protection incident.Here other situation of not mentioning; all can export intermediateness Mate SF disappears; comprise: current what produced is Mate IDLE incident, though and what produce is the Mate SF incident website both direction situation that has the protection higher than Mate SF priority etc.
Referring to Fig. 8; Fig. 8 is the process chart of the inspection processing unit that present embodiment provided; be used for according to the intermediateness of initial treatment unit output and the guard mode of current website preservation; where determine upwards to enter interface fault disappearance processing unit, interface fault processing unit processes or performance element and handle, detailed process is as follows:
In step 801, whether the intermediateness of judging the output of initial treatment unit is for Mate SF disappears, if then execution in step 802; Otherwise, execution in step 804.
In step 802, judge the current Mate SF that whether exists of this website, if, execution in step 803; Otherwise, execution in step 811.
In step 803, judge that the current Mate SF that whether exists of this website protects, if then indicate interface fault disappearance processing unit processes in the direction that comes into force of Mate SF; Otherwise, execution in step 811.Here the Mate SF of indication protection is meant the SF protection that generates owing to simulation SF.Judge that the protection incident that the current branch's correspondence that whether has a "Yes" in the Mate SF protection of this website is received is the situation of Mate IDLE incident.Wherein the protection of receiving of branch's correspondence of "No" is a Mate SF incident; but the current situation that has the high priority protection of this website; because the Mate SF incident of current generation can not change to the current guard mode of website, therefore need enter interface fault disappearance processing unit and handle.
In step 804, judge whether current protection incident is Mate SF incident, if then execution in step 805; Otherwise, enter interface fault disappearance processing unit processes, execution in step 808 in the Mate SF direction that comes into force.
Here, judge whether current protection incident is the branch of "Yes" in the Mate SF incident, and the protection incident of representing current generation is a Mate SF incident, and there is not the protection of high priority in this website two directions; Wherein the branching representation of "No" has existed the protection incident of Mate SF, current generation not to be Mate SF incident at website, but the low situation of priority of the priority ratio Mate SF incident of the protection incident of current generation.Wherein the low expression of priority ratio Mate SF incident is that current protection incident is not FS incident or SF incident.
In step 805, judge whether neighbor site exists than the high protection of Mate SF priority on the direction of current website, if then on the direction that has the high priority protection, enter the interface fault processing unit processes, execution in step 810; Otherwise, execution in step 806.
In the judgement of this step,, then on the direction that has the high priority protection arbitrarily, enter the interface fault processing unit processes if all exist on two directions than the high protection of Mate SF priority.
In step 806, judge whether this website has existed the SD protection, if then on the direction that has the SD protection, enter the interface fault processing unit processes, execution in step 810; Otherwise, execution in step 807.
In the judgement of this step,, then on the direction that has the high priority protection arbitrarily, enter the interface fault processing unit processes if all there is the protection of SD on two directions.
In step 807, judge whether neighbor site exists the SD protection on the direction of current website, if then on the direction that has the SD protection, enter the interface fault processing unit processes, execution in step 810; Otherwise, enter the interface fault processing unit processes in any direction, execution in step 810.
In the judgement of this step,, then on the direction that has the high priority protection arbitrarily, enter the interface fault processing unit processes if all there is the protection of SD on two directions.
In step 808, interface fault disappearance processing unit is handled in the Mate SF direction that comes into force.
Can eliminate the influence of Mate SF by the processing of this step.Because entering the processing of this flow process is the current low situation of priority ratio Mate SF that gets the hang of and protect incident.Have only the influence of having eliminated Mate SF, just can carry out normal process the protection incident of the current machine that gets the hang of.
In step 809, enter performance element in current protection incident direction and handle.
In step 810, the interface fault processing unit is handled on the direction of appointment.
In step 811, judge the current Mate Interface incident that whether exists, if, enter step 812 in high priority protection direction indication interface fault disappearance processing unit processes; Otherwise the indication performance element is handled current protection incident.
In step 812, interface fault disappearance processing unit is handled on the direction of appointment, finishes current handling process.
In step 813, performance element is handled current protection incident.
Referring to Fig. 9, Fig. 9 is the process chart of interface fault disappearance processing unit, may further comprise the steps:
In step 901, checking that simulation AUTO_IDLE incident enters existing PROCESS state machine processing on the indicated direction of processing unit.
In step 902, after step 901 disposes, judge and whether to check on the indicated direction of processing unit the malfunction of high priority, if simulation AUTO_SF incident enters existing PROCESS state machine and handles on indicated direction; Otherwise, execution in step 903.
In step 903, judge the current SD protection that is suspended of whether having write down, if then simulate the AUTO_SD incident and enter existing PROCESS state machine processing, and the SD that deletion record is suspended protects; Otherwise, finish current handling process.
Referring to Figure 10, Figure 10 is the processing figure of interface fault processing unit, may further comprise the steps:
In step 1001, simulation AUTO_SF incident enters existing PROCESS state machine on the direction of appointment.
In step 1002, judge whether to exist the SD protection that is suspended, if, execution in step 1003; Otherwise, finish current handling process.
Here, judging whether to exist the SD protection that is suspended is according to the judgement in the step 806.This mainly is because in step 806, when there is the SD protection in this website, execution be that simulation AUTO_SF incident generates the SF protection on the direction that has the SD protection.At this moment, according to existing handling process, generating the SF protection, original SD protection will be suspended.
In step 1003, the SD protection that record is suspended.
In addition, referring to Figure 11, Figure 11 is the processing figure of performance element, mainly is according to indication, utilizes existing P ROCESS state machine to handle the protection incident of current generation.
The technical scheme that the application of the invention provided, after Mate Interface broke down, the side that the direction that comes into force of Mate SF is broken down at SPAN after Mate Interface breaks down, had guaranteed the largest connected property of RPR ring.And technical scheme of the present invention not only can guarantee the largest connected property of RPR ring; Simultaneously, can also handle on the RPR ring other protection incidents that generate, make and effectively to merge with the processing of existing other protection incidents, a kind of state machine that can the treatment station fault is provided the processing of Mate SF incident.
In addition,, therefore can take less resource, realize comprising the troubleshooting technical scheme of internal interface fault, the resource of greatly having saved the RPR website because the realization of technical solution of the present invention only depends on the guard mode information that website self is preserved.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. the method for a processing failure at RPR site is characterized in that, the protection incident that generates when RPR website handling failure state changes comprises:
Described RPR website judges that whether current protection incident is and the relevant internal interface incident of internal interface fault Mate SF,
If, in current protection incident during for the Mate SF incident that Mate SF takes place generates, selecting the RPR website to have a side of fault is the direction that comes into force of current Mate SF, and in this direction analog signals inefficacy SF generation SF protection that comes into force, current protection incident be internal interface fault disappearance Mate IDLE generate Mate IDLE incident the time, whether there are Forced Switch FS or SF on SF protection of on Mate SF comes into force direction, cancelling simulation SF and generating and the direction of judging this cancellation SF protection, when having described FS or SF, simulation SF generates the SF protection on this direction;
If not, handle current protection incident.
2. method according to claim 1 is characterized in that, described failure condition according to current website determines that the direction that comes into force of current Mate SF comprises: judge whether have Forced Switch FS protection or SF protection on current website east, west two directions,
If with arbitrary direction that comes into force that has the direction of Forced Switch FS protection or SF protection as current Mate SF, described simulation SF generates the SF protection and is, after the protection of the described existence of cancellation, simulates SF again and generates the SF protection on this comes into force direction;
If not; judge whether neighbor site exists FS protection or SF protection on the direction of current website, if exist, with the direction of the arbitrary FS of existence protection or SF protection the direction that comes into force as current Mate SF; otherwise, with the come into force direction of either direction as current Mate SF.
3. method according to claim 2 is characterized in that, before with the come into force direction of either direction as current MateSF, this method further comprises: judge whether current website exists signal attenuation SD protection,
If exist, with the direction of the arbitrary SD of the existence protection of current website the direction that comes into force as current Mate SF;
If there is no, judge whether neighbor site exists SD protection on the direction of current website, if, with the direction of the arbitrary SD of existence protection the direction that comes into force as described Mate SF, otherwise, with the come into force direction of either direction as current Mate SF.
4. method according to claim 3 is characterized in that, this method further comprises: the direction of the arbitrary SD of existence of current website protection is being come into force during direction the SD protection on the described direction that comes into force that suspends as current Mate SF;
On coming into force direction, Mate SF after the cancellation SF protection, judges on this comes into force direction, whether there is the SD protection that is suspended, if then cancel suspending of described SD protection; Otherwise, finish current handling process.
5. according to the described method of arbitrary claim in the claim 1 to 4, it is characterized in that,
After judging that current protection incident is not the internal interface incident, when determining that current website exists Mate SF and current protection incident to be automatic signal inefficacy AUTO_SF incident or management Forced Switch ADMIN_FS incident, this method further comprises: judge whether that the SF that exists simulation SF to generate protects, if, before handling current protection incident, on coming into force direction, cancels Mate SF the SF protection of simulating SF and generating; Otherwise, handle current protection incident.
6. according to the described method of arbitrary claim in the claim 1 to 4, it is characterized in that,
After the protection incident of judging current website generation was not the internal interface incident, it was fault disappearance incident that current website exists Mate SF and current protection incident,
After the current protection incident of processing, this method further comprises: simulation Mate SF incident, and determine the direction that comes into force of this Mate SF according to the failure condition of website after the current protection incident of processing, and on this comes into force direction, simulate SF generation SF protection; Wherein, describedly determine that the direction that comes into force of this Mate SF is: determine to handle current website after the current protection incident exist the side on limit or the relatively poor side of link-quality make a living efficacious prescriptions to.
7. according to the described method of arbitrary claim in the claim 1 to 4, it is characterized in that,
After the protection incident of judging current website generation is not the internal interface incident, when current website existed Mate SF and current protection incident to be automatic signal decay AUTO_SD incident, this method further comprised: judge whether that the SF that exists simulation SF to generate protects;
If, before handling current protection incident, the SF protection that cancellation simulation SF generates; After handling current protection incident, simulation Mate SF incident is determined the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and is generated SF protection at this direction analog signals inefficacy SF that comes into force; Wherein, describedly determine that the direction that comes into force of this Mate SF is: determine to handle current website after the current protection incident exist the side on limit or the relatively poor side of link-quality make a living efficacious prescriptions to;
If not, handle current protection incident.
8. the device of a processing failure at RPR site is characterized in that, this device comprises output unit, control unit, interface fault processing unit, interface fault disappearance processing unit and performance element;
Described output unit generates the protection incident when the faults itself state changes, be included in and generate Mate SF incident when internal interface fault Mate SF takes place, when described internal interface fault disappearance Mate IDLE, generate Mate IDLE incident, the protection incident that generates is sent to described control unit handles;
Described control unit receives the protection incident, and when the current protection incident of receiving was Mate SF incident, selecting current RPR website to have a side of fault was the direction that comes into force of current Mate SF, and in this direction indication interface fault processing unit processes that comes into force; When current protection incident is Mate IDLE incident, in the Mate SF direction indication interface fault disappearance processing unit processes that comes into force; When the current protection incident of receiving was not Mate SF incident and Mate IDLE incident, the indication performance element was handled the current protection incident of receiving;
Described interface fault processing unit generates the SF protection according to the indication of described control unit at the indicated direction analog signals inefficacy SF that comes into force;
Described interface fault disappearance processing unit is according to the indication of described control unit, the SF protection of on the indicated direction that comes into force, cancelling simulation SF and generating, and when having Forced Switch FS or SF on the direction of this cancellation SF protection, simulation SF generates the SF protection on this direction;
Described performance element is handled current protection incident.
9. device according to claim 8 is characterized in that, described control unit comprises the initial treatment unit and checks processing unit;
When Mate SF incident was received in described initial treatment unit, when having Forced Switch FS protection or SF protection on website east, place, west two directions, output intermediateness Mate SF disappeared to described inspection processing unit; When not having Forced Switch FS protection or SF protection on website east, place, west two directions, output intermediateness Mate SF produces to described inspection processing unit;
When described inspection processing unit disappears for Mate SF in the intermediateness of receiving, when determining the current Mate of existence SF, with arbitrary direction that comes into force that has the direction of Forced Switch FS protection or SF protection as current Mate SF; When the intermediateness of receiving produces for Mate SF, current protection incident is under the situation of Mate SF incident, when having FS protection or SF protection on the direction of neighbor site at current website, with the direction of the arbitrary FS of existence protection or SF protection the direction that comes into force as current Mate SF, when not having FS protection or SF protection on the direction of neighbor site at current website, with the come into force direction of either direction as current Mate SF;
Described interface fault disappearance processing unit is after the existing protection of cancellation on the indicated direction that comes into force, and when having FS protection or SF protection on the indicated direction that comes into force, simulation SF generates the SF protection.
10. device according to claim 9 is characterized in that,
Described inspection processing unit judges whether current website exists signal attenuation SD protection before with the direction that comes into force of either direction as current Mate SF, if exist, with the direction of the arbitrary SD of the existence protection of the current website direction that comes into force as current Mate SF; If there is no, judge whether neighbor site exists SD protection on the direction of current website, if, with the direction of the arbitrary SD of existence protection the direction that comes into force as described MateSF, otherwise, with the come into force direction of either direction as current Mate SF.
11. device according to claim 10 is characterized in that,
Described performance element writes down the current SD protection that is suspended after there be the direction that comes into force of direction as current Mate SF of SD protection in any one with this website;
Described interface fault disappearance processing unit is cancelled on Mate SF comes into force direction after the SF protection, when having the SD protection that is suspended on this comes into force direction, cancels suspending and deleting corresponding record of this SD protection.
12. according to claim 9, the described device of 10 or 11 arbitrary claims, it is characterized in that,
Described initial treatment unit receive not for the protection incident of Mate SF incident and Mate IDLE incident the time, having Mate SF and current protection incident at current website is that output intermediateness Mate SF disappears to described inspection processing unit under the situation of automatic signal inefficacy AUTO_SF incident or management Forced Switch ADMIN_FS incident;
Described inspection processing unit determines that there is Mate SF in current website after receiving that Mate SF disappears, and when there was the SF protection of simulation SF generation in website, indication internal interface fault disappearance processing unit was handled on Mate SF comes into force direction; When there was not the SF protection of simulation SF generation in website, the indication performance element was handled current protection incident;
Described internal interface fault disappearance processing unit after the existing protection of cancellation, is simulated SF again and is generated the SF protection on the indicated direction that comes into force when current protection incident is AUTO_SF incident or ADMIN_FS incident.
13. according to claim 9, the described device of 10 or 11 arbitrary claims, it is characterized in that,
Described initial treatment unit is being received fault disappearance incident, when there is Mate SF in current website, is being exported intermediateness Mate SF and generate to described inspection processing unit;
After described inspection processing unit receives that Mate SF generates, be fault disappearance incident and current website when having Mate SF in current protection incident, the indication performance element is handled current protection incident; And after handling current protection incident, simulation Mate SF incident is determined the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and is generated SF protection at this direction analog signals inefficacy SF that comes into force; Wherein, describedly determine that the direction that comes into force of this Mate SF is: determine to handle current website after the current protection incident exist the side on limit or the relatively poor side of link-quality make a living efficacious prescriptions to.
14. according to claim 9, the described device of 10 or 11 arbitrary claims, it is characterized in that,
When the automatic signal that described initial treatment unit is received decays the AUTO_SD incident, exist at current website under the situation of Mate SF, output intermediateness Mate SF generates to described inspection processing unit;
After described inspection processing unit receives that Mate SF generates, in current protection incident is that AUTO_SD incident and current website are when existing Mate SF, when there is the SF protection of simulation SF generation in website, in this Mate SF direction cancellation SF protection that comes into force, and indicate described performance element to handle current protection incident, after current protection event handling finishes, simulation Mate SF incident, determine the direction that comes into force of this Mate SF according to handling the failure condition of website after the current protection incident, and generate SF protection at this direction analog signals inefficacy SF that comes into force; Do not exist simulation SF to generate the SF protection at website, the indication performance element is handled current protection incident; Wherein, describedly determine that the direction that comes into force of this Mate SF is: determine to handle current website after the current protection incident exist the side on limit or the relatively poor side of link-quality make a living efficacious prescriptions to.
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