CN102857362A - Fault processing method, device and system - Google Patents
Fault processing method, device and system Download PDFInfo
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- CN102857362A CN102857362A CN2012101194397A CN201210119439A CN102857362A CN 102857362 A CN102857362 A CN 102857362A CN 2012101194397 A CN2012101194397 A CN 2012101194397A CN 201210119439 A CN201210119439 A CN 201210119439A CN 102857362 A CN102857362 A CN 102857362A
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Abstract
The invention provides a fault processing method, device and system. The method comprises the following steps of: receiving a fault event reported by a first linkage module after the first linkage module detects that a main pseudo wire (PW) between local equipment and far-end equipment has a fault; according to a preset linkage mapping relation, announcing the fault event to a second linkage module in the far-end equipment, which is in linkage with the first linkage module, so that the second linkage module carries out fault processing according to the fault event. The invention also provides a fault linkage device, a fault processing device and a fault processing system. When a link at the local equipment side has a fault, the far-end equipment in the embodiment of the invention can senses the fault in time, millisecond scale switching of user flow is realized, and the phenomenon that transferring of the user flow is stopped can be avoided.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of fault handling method, device and system.
Background technology
Along with deployment and the development of the pseudo-line service of Virtual network operator, operator more and more payes attention to quick discovery and the professional protective capability of fault, and the Millisecond of business is switching to the target that each equipment supplier pursues when network breaks down.Operator adopts multiple technologies to improve detection speed and the requirement of protection switching performance of network failure at present, thereby reduces network failure to the impact of business, improves professional reliability, VLL service (Virtual Private Wire Service; Hereinafter to be referred as: VPWS) quick heavy-route Fast Reroute; Hereinafter to be referred as: FRR) technology for this reason demand arise at the historic moment.
Fig. 1 is VPWS FRR application scenarios schematic diagram of the prior art, as shown in Figure 1, and provider edge router (Provider Edge Router; Hereinafter to be referred as: PE) 1 with PE2, PE3 set up respectively active/standby pseudo wires (Pseudo Wire; Hereinafter to be referred as: PW), namely main PW path be PE1＜-〉 PE2, standby PW path be PE1＜-〉 PE3, customer network edge router (Customer Edge Router; Hereinafter to be referred as: CE) 2 dual homeds are on PE2 and PE3, by the pseudo-lines fault detection technique, such as virtual circuit connectivity checking (Virtual Circuit Connectivity Verifcation; Hereinafter to be referred as: VCCV) two-way converting detects (Bidirectional Forwarding Detection; Hereinafter to be referred as: BFD).When main PW broke down, the BFD module among the PE1 can switch to flow on the standby PW in the short time at the utmost point from main PW; When main PW recovered normal, flow switched on the main PW from standby PW automatically.Can guarantee in the short time before network convergence that flow does not interrupt like this, improve the reliability of the basic network of VPWS, protection VPWS is upper professional unaffected.
Yet in the prior art, when main PW broke down, CE2 can't perceive fault, and CE2 can't switch on the standby PW to the customer flow of CE1 direction, causes this direction customer flow to be transmitted and interrupts; In like manner, when link broke down between CE2 and PE2, PE1 can't perceive this access link (Attachment Circuit; Hereinafter to be referred as: AC) link breaks down, and causes this direction customer flow to be transmitted and interrupts.
Summary of the invention
The invention provides a kind of fault handling method, device and system, when the link occurs fault of local device side, this fault of in time perception of remote equipment realizes that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
First aspect of the present invention provides a kind of fault handling method, comprising:
Receive the first interlocking module and detecting the event of failure that reports after the pseudo-line PW of master between local device and the remote equipment breaks down;
According to default interlock mapping relations, described event of failure is announced to consisting of the second interlocking module in the described remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
Another aspect of the present invention provides a kind of fault linkage, comprising:
The first port be used for to receive the first interlocking module and is detecting the event of failure that reports after the pseudo-line PW of master between local device and the remote equipment breaks down;
Announcement module, be used for according to default interlock mapping relations, described event of failure is announced to consisting of the second interlocking module in the described remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
Another aspect of the present invention provides a kind of fault treating apparatus, is arranged in the remote equipment, comprising:
The second port, be used for to receive the fault linkage according to the event of failure of default interlock mapping relations announcement, to be the first interlocking module report described fault linkage after the pseudo-line PW of master between local device and the described remote equipment breaks down detecting to described event of failure;
The second interlocking module consists of interlock with described the first interlocking module, is used for carrying out troubleshooting according to described event of failure.
Another aspect of the present invention provides a kind of fault processing system, comprises above-mentioned fault linkage and fault treating apparatus.
Technique effect of the present invention is: by disposing the interlock mapping relations of the first interlocking module and the second interlocking module, receive the first interlocking module and detecting the event of failure that reports after main PW breaks down, according to default interlock mapping relations this event of failure is announced to the second interlocking module, so that the remote equipment at the second interlocking module place can perceive the fault that local device occurs, and carry out corresponding troubleshooting according to event of failure; When the link occurs fault of local device side, this fault of in time perception of the remote equipment in the present embodiment has realized that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
Description of drawings
Fig. 1 is VPWS FRR application scenarios schematic diagram of the prior art;
Fig. 2 is the flow chart of fault handling method embodiment one of the present invention;
Fig. 3 is the flow chart of fault handling method embodiment two of the present invention;
Fig. 4 is the message format schematic diagram among the troubleshooting embodiment two of the present invention;
Fig. 5 is the flow chart of fault handling method embodiment three of the present invention;
Fig. 6 is the structural representation of fault linkage embodiment of the present invention;
Fig. 7 is the structural representation of fault treating apparatus embodiment one of the present invention;
Fig. 8 is the structural representation of fault treating apparatus embodiment two of the present invention;
Fig. 9 is the structural representation of fault treating apparatus embodiment three of the present invention.
Embodiment
Fig. 2 is the flow chart of fault handling method embodiment one of the present invention, and as shown in Figure 2, the present embodiment provides a kind of fault handling method, can specifically comprise the steps:
Step 201 receives the first interlocking module and is detecting the event of failure that reports after the pseudo-line PW of master between local device and the remote equipment breaks down.
In order to solve when the link of local device side breaks down, remote equipment can't perceive fault, still carry out transfer of data by the link that breaks down, the present embodiment is at PE deploy BFD and first mile Ethernet (Ethernet in the First Mile; Hereinafter to be referred as: EFM) linkage technique, thus so that remote equipment can in time be known event of failure when the local device side breaks down.In the present embodiment, local device and remote equipment are relative concepts, and the present embodiment can adopt application scenarios shown in Figure 1 equally, and when local device was PE1, corresponding remote equipment was CE2; When local device was CE2, corresponding remote equipment was PE1.
When this step broke down for detecting main PW between local device and the remote equipment when the first interlocking module, this first interlocking module reported this event of failure.Still take application scenarios shown in Figure 1 as example, in PE1, be deployed with the BFD module, in PE2, be deployed with BFD module, EFM module and operation management maintain (Operation Administration Maintenance; Hereinafter to be referred as: OAM) module is deployed with the EFM module in CE2.Wherein, the first interlocking module in this step can be the BFD module among the PE2, also can be the EFM module among the PE2.When the first interlocking module is BFD module among the PE2, the link that this BFD module detects between PE1 and the PE2 breaks down, then the OAM module in the PE2 reports this event of failure, and the OAM module that this step is specially among the PE2 receives the event of failure that the BFD module reports.When the first interlocking module is EFM module among the PE2, the link that this EFM module detects between PE2 and the CE2 breaks down, then the OAM module in the PE2 reports this event of failure, and the OAM module that this step is specially among the PE2 receives the event of failure that the EFM module reports.
Step 202 according to default interlock mapping relations, is announced described event of failure to consisting of the second interlocking module in the remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
After receiving event of failure from the first interlocking module, the default interlock mapping relations that the OAM module among this PE is preserved according to this locality announce this event of failure to consisting of the second interlocking module in the remote equipment of interlock with this first interlocking module.The interlock mapping relations of indication are the first interlocking module of formation interlock and the one by one mapping relations between the second interlocking module herein, still take application scenarios shown in Figure 1 as example, the second interlocking module in the present embodiment can be the EFM module among the CE2, also can be the BFD module among the PE1.When the first interlocking module is BFD module among the PE2, the second interlocking module then is the EFM module among the CE2, this step is specially the default interlock mapping relations of OAM module basis among the PE2, event of failure is announced to the EFM module among the CE2, so that the EFM module is carried out troubleshooting according to this event of failure, troubleshooting herein can be for removing medium access control (the Media Access Control of the upper correspondence of preserving of CE2; Hereinafter to be referred as: MAC) list item.When the first interlocking module is EFM module among the PE2, the second interlocking module then is the BFD module among the PE1, this step is specially the default interlock mapping relations of OAM module basis among the PE2, event of failure is announced to the BFD module among the PE1, so that the BFD module is carried out troubleshooting according to this event of failure, troubleshooting herein can be for switching to flow on the standby PW from main PW.
Particularly, the local device in the present embodiment can be PE, and the first interlocking module can be the BFD module, and remote equipment can be CE, and the second interlocking module can be the EFM module.Above-mentioned the second interlocking module carries out troubleshooting according to described event of failure can comprise the steps: specifically that described EFM module generates fault notification interlock message according to described event of failure, carries medium access control MAC erasing of information indication in the described fault notification interlock message; Described EFM module sends to MAC administration module among the described CE with described fault notification interlock message, so that described MAC administration module is removed MAC address entries corresponding to port of receiving described fault notification interlock message according to described MAC erasing of information indication.
More specifically, the indication of the described MAC erasing of information in the present embodiment is arranged in the equipment appointed information of information reserved field that info class offset in the described fault notification interlock message is the preset kind value.
Perhaps, the local device in the present embodiment can be CE, and the first interlocking module can be the EFM module, and remote equipment can be PE, and the second interlocking module can be the BFD module.The second interlocking module described above can comprise the steps: specifically that according to the step that described event of failure carries out troubleshooting described BFD module generates BFD message according to described event of failure, carries the failure cause value in the described BFD message; Described BFD module sends to flow switch module among the described PE with described BFD message, so that described flow switch module switches to standby PW according to described BFD message with described main PW.
More specifically, the failure cause value in the described BFD message in the present embodiment is default cause value.
The present embodiment provides a kind of fault handling method, by disposing the interlock mapping relations of the first interlocking module and the second interlocking module, receive the first interlocking module and detecting the event of failure that reports after main PW breaks down, according to default interlock mapping relations this event of failure is announced to the second interlocking module, so that the remote equipment at the second interlocking module place can perceive the fault that local device occurs, and carry out corresponding troubleshooting according to event of failure; When the link occurs fault of local device side, this fault of in time perception of the remote equipment in the present embodiment has realized that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
Fig. 3 is the flow chart of fault handling method embodiment two of the present invention, and as shown in Figure 3, the present embodiment provides a kind of fault handling method, and the present embodiment specifically is applied in the application scenarios shown in Figure 1, and the present embodiment can specifically comprise the steps:
Step 301, when the BFD module among the PE2 detected link and breaks down, the BFD module judged whether the failure cause value in the BFD message is default cause value, and if so, then execution in step 302, otherwise process ends.
Take above-mentioned Fig. 1 as example, the local device in the present embodiment is specially PE1, and remote equipment is specially CE2, is deployed with the BFD module in PE1, is deployed with BFD module, EFM module and OAM module in PE2, is deployed with EFM module and BFD module in CE2.In this step, when the BFD module among the PE2 detected link and breaks down, this BFD module generated a BFD message according to fault type, and the failure cause value corresponding with fault type is set in this BFD message.The BFD module judges whether the failure cause value of this fault type of sign in the BFD message is default cause value, judges namely whether the link failure that detects is that main PW breaks down, and namely the link between PE1 and the PE2 breaks down; Default cause value herein can be made as 5, judges namely whether the Diag value of this failure cause of sign in the BFD message is 5, if, show that the link between PE1 and the PE2 breaks down, then execution in step 302, otherwise not to OAM module reporting fault event, and process ends.Definition Diag value is 5 expression link down (Path Down) in RFC5880.
Break down when the BFD module detects main PW, and the Diag value of this failure cause of sign is in the BFD message OAM module reporting fault event of BFD module in the PE2 at 5 o'clock.
Step 303, OAM module judge whether to have the EFM module that links with this BFD module composition according to default interlock mapping relations, and if so, then execution in step 304, otherwise process ends.
The OAM module is after receiving the event of failure that the BFD module reports, according to the default BFD module of this locality preservation and the interlock mapping relations between the EFM module, judge the EFM module that whether exists in the current network with this BFD module composition interlock, if, then carry out subsequent step 304, to the EFM module reporting fault event that consists of interlock, otherwise not to the EFM module reporting fault event that consists of interlock, and process ends.
When the OAM module is known the EFM module that exists with the interlock of BFD module composition, the OAM module with this event of failure announce to the CE2 of BFD module composition interlock in the EFM module so that CE2 can be known the fault that occurs between PE1 and the PE2.
The EFM module is after receiving event of failure, generate fault notification interlock message according to event of failure, fault notification interlock message herein can be specially information OAM Protocol Data Unit (the Information OAM Protocol Data Unit that defines among the IEEE802.3ah; Hereinafter to be referred as: Information OAMPDU) message, in this fault notification interlock message, carry MAC erasing of information indication.In the present embodiment, MAC erasing of information indication is arranged in the equipment appointed information of information reserved field that info class offset in the Information OAMPDU message is the preset kind value.Information reserved field herein can be specially Information tag length content (the Tag Length Value in the Information OAMPDU message; Hereinafter to be referred as: TLV) field, the info class offset of information reserved field is specially the TLV Type value of Information TLV field, usually the TLV Type value of system's reservation is 0x03-0xFD, the preset kind value specifically can be set to 0x03 in the present embodiment, the equipment appointed information can be specially the Vendor Specifc Info in the Information TLV field.Fig. 4 is the message format schematic diagram among the troubleshooting embodiment two of the present invention, as shown in Figure 4, the present embodiment defines the Information TLV field in the existing Information OAMPDU message, the TLV Type value of the Information TLV field of event of failure is defined as 0x03, add MAC erasing of information indication in Vendor Specifc Info position, namely add Notify remote-OAM-Entity withdraw MAC, what expression EFM module was received is the event of failure of the first interlocking module BFD module announcement, this event of failure to be announced to remote equipment CE2, be allowed CE2 remove MAC address entries corresponding to port of receiving this failure message.
EFM sends to MAC administration module among the CE2 with this Information OAMPDU message after generating fault notification interlock message, namely generating Information OAMPDU message so that CE2 can perception PE1 and PE2 between the link failure that occurs.
Step 307, MAC administration module judge whether the info class offset in the fault notification interlock message of receiving is the preset kind value, and if so, then execution in step 308, otherwise process ends.
MAC administration module among the CE2 is after receiving fault notification interlock message, judge whether the info class offset in this fault notification interlock message is the preset kind value, judge namely whether the TLV Type value in this Information OAMPDU message is 0x03, if, show that main PW breaks down, then execution in step 308, otherwise this event of failure do not processed, and process ends.
When the TLV Type value in the Information OAMPDU message that the MAC administration module is received is 0x03, CE2 perceives main PW and breaks down, then the MAC administration module among the CE2 is removed immediately indication according to the MAC information in the Information OAMPDU message and is removed MAC address entries corresponding to port that CE2 receives this Information OAMPDU message, thereby follow-up CE2 can not re-send to PE2 to the customer flow of CE1, and all switch on the standby PW, the Millisecond of having realized the upper customer flow of CE2 switches fast, and this moment, PE1 finished the switching of active and standby PW, so that the not impact of acceptor PW fault of the business on the VPWS.
The present embodiment provides a kind of fault handling method, by disposing the interlock mapping relations of BFD module and EFM module, the BFD module that OAM module among the PE2 receives among the PE2 is detecting the event of failure that reports after main PW breaks down, according to default interlock mapping relations this event of failure is announced to the EFM module among the CE2, so that CE2 can perceive the fault that main PW occurs, and remove MAC address entries corresponding to corresponding port according to event of failure; When the link occurs fault of main PW, this fault of in time perception of the remote equipment in the present embodiment has realized that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
Fig. 5 is the flow chart of fault handling method embodiment three of the present invention, and as shown in Figure 5, the present embodiment provides a kind of fault handling method, and the present embodiment specifically is applied in the application scenarios shown in Figure 1, and the present embodiment can specifically comprise the steps:
Step 501, when the EFM module among the PE2 detected link and breaks down, the EFM module judged whether the sign thresholding in the Information OAMPDU message is default thresholding, and if so, then execution in step 502, otherwise process ends.
Take above-mentioned Fig. 1 as example, the local device in the present embodiment is specially CE2, and remote equipment is specially PE1, is deployed with the BFD module in PE1, is deployed with BFD module, EFM module and OAM module in PE2, is deployed with EFM module and BFD module in CE2.In this step, when the EFM module among the PE2 detected link and breaks down, this EFM module generated an Information OAMPDU message according to fault type, and the sign thresholding corresponding with fault type is set in this Information OAMPDU message.The EFM module judges whether the sign thresholding in the Information OAMPDU message is default thresholding, judges namely whether the link failure that detects is that main PW breaks down, and namely the link between PE2 and the CE2 breaks down.Sign thresholding herein can be specially the Flag thresholding, default thresholding can be made as 1,2,3, correspond to the urgent link event type that defines among the IEEE802.3ah, this step is for to judge whether the Flag thresholding in the Information OAMPDU message is 1,2,3, if so, show that the link between PE2 and the CE2 breaks down, then execution in step 502, otherwise not to OAM module reporting fault event, and process ends.
Break down when the EFM module detects the AC link, and the Flag thresholding in the Information OAMPDU message is the OAM module reporting fault event of EFM module in the PE2 at 1,2,3 o'clock.
Step 503, OAM module judge whether to have the BFD module that links with this EFM module composition according to default interlock mapping relations, and if so, then execution in step 504, otherwise process ends.
The OAM module is after receiving the event of failure that the BFD module reports, according to the default BFD module of this locality preservation and the interlock mapping relations between the EFM module, judge the BFD module that whether exists in the current network with this EFM module composition interlock, if, then carry out subsequent step 504, to the BFD module reporting fault event that consists of interlock, otherwise not to the BFD module reporting fault event that consists of interlock, and process ends.
When the OAM module is known the BFD module that exists with the interlock of EFM module composition, the OAM module with this event of failure announce to the PE1 of EFM module composition interlock in the BFD module so that PE1 can be known the fault that occurs between PE2 and the CE2.
The BFD module generates BFD message according to event of failure after receiving event of failure, carry the failure cause value in the described BFD message, and in the present embodiment, the BFD module can specifically generate one, and to comprise the Diag value be 5 BFD message.
Step 506, the BFD module sends to flow switch module among the PE1 with BFD message.
BFD sends to flow switch module among the PE1 with this BFD message after generating BFD message, namely send to the VPWS administration module among the PE1 so that PE1 can perception PE2 and CE2 between the link failure that occurs.
Step 507, flow switch module judge whether the failure cause value in the BFD message of receiving is default cause value, and if so, then execution in step 508, otherwise process ends.
VPWS administration module among the PE1 is after receiving BFD message, judge whether the failure cause value in this BFD message is default cause value, judge namely whether the Diag value in this BFD message is 5, if, show that the AC link breaks down, then execution in step 508, otherwise this event of failure do not processed, and process ends.
When the Diag value in the BFD message that the flow switch module is received is 5, PE1 perceives the AC link and breaks down, then the flow switch module switches to standby PW according to BFD message with main PW, the Millisecond of having realized the upper customer flow of CE1 switches fast, thereby guarantee that customer flow can not interrupt when the AC link breaks down, thereby improve the reliability of the basic network of VPWS.
The present embodiment provides a kind of fault handling method, by disposing the interlock mapping relations of BFD module and EFM module, the EFM module that OAM module among the PE2 receives among the PE2 is detecting the event of failure that reports after the AC link breaks down, according to default interlock mapping relations this event of failure is announced to the BFD module among the PE1, so that PE1 can perceive the fault that the AC link occurs, and carry out the switching of active and standby PW according to event of failure; When the AC link occurs fault, this fault of in time perception of remote equipment side in the present embodiment has realized that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 6 is the structural representation of fault linkage embodiment of the present invention, and as shown in Figure 6, the present embodiment provides a kind of fault linkage, can specifically carry out each step among the said method embodiment one, repeats no more herein.The fault linkage that the present embodiment provides can specifically comprise the first port 601 and announcement module 602.Wherein, the first port 601 is detecting the event of failure that reports after main pseudo-line PW breaks down between local device and the remote equipment for receiving the first interlocking module.Announcement module 602 is used for according to default interlock mapping relations, described event of failure is announced to consisting of the second interlocking module in the described remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
Fig. 7 is the structural representation of fault treating apparatus embodiment one of the present invention, and as shown in Figure 7, the present embodiment provides a kind of fault treating apparatus, can specifically carry out each step among the said method embodiment one, repeats no more herein.The fault treating apparatus that the present embodiment provides can specifically be arranged in the remote equipment, and this fault treating apparatus can specifically comprise the second port 701 and the second interlocking module 702.Wherein, the second port 701 is used for receiving the fault linkage according to the event of failure of default interlock mapping relations announcement, and described event of failure is that the first interlocking module in the local device reports described fault linkage after the pseudo-line PW of master between described local device and the described remote equipment breaks down detecting.The second interlocking module 702 consists of interlock with described the first interlocking module, is used for carrying out troubleshooting according to described event of failure.
Fig. 8 is the structural representation of fault treating apparatus embodiment two of the present invention, and as shown in Figure 8, the present embodiment provides a kind of fault treating apparatus, can specifically carry out each step among the said method embodiment two, repeats no more herein.The fault treating apparatus that the present embodiment provides is on above-mentioned basis shown in Figure 7, and local device can be specially PE, and the first interlocking module can be specially the BFD module, and remote equipment can be specially CE, and the second interlocking module 702 can be specially the EFM module.This fault treating apparatus can also comprise MAC administration module 801.The second interlocking module 702 can specifically be used for generating fault notification interlock message according to described event of failure, carry medium access control MAC erasing of information indication in the described fault notification interlock message, described fault notification interlock message is sent to MAC administration module 801.MAC administration module 801 can specifically be used for receiving MAC address entries corresponding to described the second port according to described MAC erasing of information indication removing.
Fig. 9 is the structural representation of fault treating apparatus embodiment three of the present invention, and as shown in Figure 9, the present embodiment provides a kind of fault treating apparatus, can specifically carry out each step among the said method embodiment two, repeats no more herein.The fault treating apparatus that the present embodiment provides is on above-mentioned basis shown in Figure 7, local device can be specially CE, the first interlocking module can be specially the EFM module, and described remote equipment can be specially PE, and the second interlocking module 702 can be specially the BFD module and establish.Fault treating apparatus in the present embodiment can also comprise flow switch module 901.The second interlocking module 702 concrete being used for generates BFD message according to described event of failure, carries the failure cause value in the described BFD message, and described BFD message is sent to flow switch module among the described PE.Flow switch module 901 is used for according to described BFD message described main PW being switched to standby PW.
The present embodiment provides a kind of fault treating apparatus, receive the fault linkage according to the event of failure of default interlock mapping relations announcement by the second port, carry out troubleshooting by the second interlocking module according to event of failure, so that fault treating apparatus can perceive the fault that main PW occurs, and carry out corresponding troubleshooting according to event of failure; When the AC link occurs fault, this fault of in time perception of the remote equipment in the present embodiment has realized that the Millisecond of customer flow switches, and avoids occurring customer flow and transmits the phenomenon of interrupting.
The present embodiment also provides a kind of fault processing system, can specifically comprise above-mentioned fault linkage shown in Figure 6 and Fig. 7 or fault treating apparatus shown in Figure 8.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a fault handling method is characterized in that, comprising:
Receive the first interlocking module and detecting the event of failure that reports after the pseudo-line PW of master between local device and the remote equipment breaks down;
According to default interlock mapping relations, described event of failure is announced to consisting of the second interlocking module in the described remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
2. method according to claim 1, it is characterized in that, described local device is provider edge router PE, described the first interlocking module is that two-way converting detects the BFD module, described remote equipment is customer network edge router CE, described the second interlocking module is first mile Ethernet EFM module, and described the second interlocking module carries out troubleshooting according to described event of failure and comprises:
Described EFM module generates fault notification interlock message according to described event of failure, carries medium access control MAC erasing of information indication in the described fault notification interlock message;
Described EFM module sends to MAC administration module among the described CE with described fault notification interlock message, so that described MAC administration module is removed MAC address entries corresponding to port of receiving described fault notification interlock message according to described MAC erasing of information indication.
3. method according to claim 2 is characterized in that, described MAC erasing of information indication is arranged in the equipment appointed information of information reserved field that info class offset in the described fault notification interlock message is the preset kind value.
4. method according to claim 1, it is characterized in that, described local device is customer network edge router CE, described the first interlocking module is first mile Ethernet EFM module, described remote equipment is provider edge router PE, described the second interlocking module is that two-way converting detects the BFD module, and described the second interlocking module carries out troubleshooting according to described event of failure and comprises:
Described BFD module generates BFD message according to described event of failure, carries the failure cause value in the described BFD message;
Described BFD module sends to flow switch module among the described PE with described BFD message, so that described flow switch module switches to standby PW according to described BFD message with described main PW.
5. method according to claim 4 is characterized in that, the failure cause value in the described BFD message is default cause value.
6. a fault linkage is characterized in that, comprising:
The first port be used for to receive the first interlocking module and is detecting the event of failure that reports after the pseudo-line PW of master between local device and the remote equipment breaks down;
Announcement module, be used for according to default interlock mapping relations, described event of failure is announced to consisting of the second interlocking module in the described remote equipment of interlock with described the first interlocking module, so that described the second interlocking module carries out troubleshooting according to described event of failure.
7. a fault treating apparatus is arranged in the remote equipment, it is characterized in that, comprising:
The second port, be used for to receive the fault linkage according to the event of failure of default interlock mapping relations announcement, to be the first interlocking module report described fault linkage after the pseudo-line PW of master between local device and the described remote equipment breaks down detecting to described event of failure;
The second interlocking module consists of interlock with described the first interlocking module, is used for carrying out troubleshooting according to described event of failure.
8. device according to claim 7 is characterized in that, described local device is PE, and described the first interlocking module is the BFD module, and described remote equipment is CE, and described the second interlocking module is the EFM module, and described device also comprises the MAC administration module;
Described the second interlocking module specifically is used for generating fault notification interlock message according to described event of failure, carry medium access control MAC erasing of information indication in the described fault notification interlock message, described fault notification interlock message is sent to described MAC administration module;
Described MAC administration module is used for receiving MAC address entries corresponding to described the second port according to described MAC erasing of information indication removing.
9. device according to claim 7 is characterized in that, described local device is CE, and described the first interlocking module is the EFM module, and described remote equipment is PE, and described the second interlocking module is that the BFD module is established, and described device also comprises the flow switch module;
Described the second interlocking module specifically is used for generating BFD message according to described event of failure, carries the failure cause value in the described BFD message, and described BFD message is sent to flow switch module among the described PE;
Described flow switch module is used for according to described BFD message described main PW being switched to standby PW.
10. a fault processing system is characterized in that, comprises each described fault treating apparatus among fault linkage claimed in claim 6 and the claim 7-9.
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