CN101163057B - Fault notifying method and apparatus, and service receiving method and apparatus - Google Patents
Fault notifying method and apparatus, and service receiving method and apparatus Download PDFInfo
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- CN101163057B CN101163057B CN2007101873414A CN200710187341A CN101163057B CN 101163057 B CN101163057 B CN 101163057B CN 2007101873414 A CN2007101873414 A CN 2007101873414A CN 200710187341 A CN200710187341 A CN 200710187341A CN 101163057 B CN101163057 B CN 101163057B
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Abstract
The invention discloses a failure informing method and device to enhance the effectiveness of failure informing. The method comprises: user side chain link failure information is produced when the failure of the user side chain link of conveying operation is monitored; the user side chain link failure information is sent through a network side chain link, which is connected with the user side chain link. The prevent invention also discloses an operation receiving method and device to ensure the successful conveying of the operation. The method comprises: the user side link failure information is received; according to the received user side link failure information, the operation is received by switching to the link of the normal user side link of an operation sending terminal.
Description
Technical field
The present invention relates to the service delivery technology in the communications field, relate in particular to a kind of failure notification method and device, and service receiving method and device.
Background technology
Along with the large-scale application of ethernet technology in networks such as enterprise network, metropolitan area network and wide area network; It is obvious gradually that the more weak shortcoming of ability can be safeguarded, can be runed to traditional ethernet; Make in the service delivery process, how business effectively to be protected, become the emphasis that industry is paid close attention to day by day.
Fig. 1 is the scene sketch map of the dual-homed access network side of user side equipment, and user side among the figure (CE, Customer Edge) equipment 1 is through the user side link; Be connected respectively to network side (PE; Provider Edge) equipment 1 and PE3, PE1 and PE3 are connected respectively to PE2 through primary, spare tunnel.Said tunnel is MAC in MAC tunnel, and it is a kind of fail safe, all preferable network side link of transmission property.
Business is transmitted at user side link and network side link with the message form, is called service message.Said service message is after passing out the user side link, and based on the MAC in MAC technology of IEEE802.1ah protocol definition, PE1 encapsulates into tunnel with said service message.In encapsulation process, said business is with shining upon corresponding I-tag value, and the I-tag value according to business can identify said business.
Service message is when said user side link and the transmission of network side link, and network side link and user side link all possibly break down.
For the network side link, be main in Fig. 1 with tunnel and over run tunnel.Prior art detects the connectedness in said tunnel usually based on 802.1ag agreement or agreement Y.1731.The mode that detects is generally: regularly send probe messages at the two ends, tunnel, to realize real-time monitoring, said message form has multiple, for example 802.1ag agreement or Y.1731 connectivity testing message (CCM, Continuity Check Message) in the agreement.
When the master used tunnel fails, based on said CCM fault message, PE2 can know that this tunnel breaks down.But for the user side fault; If the user side link CE1 to PE1 of business transferring breaks down; Though CE1 can be known said fault message; Notify method owing to lack at present a kind of user side link failure, so PE2 can't know the user side fault message at said professional place, reduce the validity of signalling trouble to PE2 with said professional place.
Fig. 2 is the scene sketch map that the business between user side equipment is passed through Network Transmission; This scene is similar with scene shown in Figure 1; Also there is similar problem: when user side link CE1 to PE1 breaks down; Notify the method to CE2 because shortage is a kind of at present with said user side link failure, CE2 can't know that user side link CE1 to PE1 breaks down.
Summary of the invention
The embodiment of the invention provides a kind of failure notification method and device, to improve the validity of signalling trouble.
The embodiment of the invention provides a kind of failure notification method; Comprise: when monitoring the user side link occurs fault of transport service; Generate user side link failure information; Said user side link failure information is included among the connectivity testing message CCM, and said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Through the link-attached network side link of said user side; Send said user side link failure information to professional receiving terminal; Make said professional the reception change end group in user side link failure information, take the handled measure, said CCM is with pre-configured frequency timed sending;
Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V can carry user appointed information.
The embodiment of the invention also provides a kind of malfunction informing device; Comprise: the fault message generation unit; Be used for when monitoring the user side link occurs fault of transport service; Generate user side link failure information; The user side link failure information that said fault message generation unit generates is represented based on the form A CM of connectivity testing message, and said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V can carry user appointed information;
Fault information generation unit; Be used for through the link-attached network side link of said user side; The user side link failure information of sending said fault message generation unit generation is to professional receiving terminal; Make said professional the reception change end group in user side link failure information, take the handled measure, said CCM is with pre-configured frequency timed sending.
The embodiment of the invention also provides a kind of service receiving method and device, to guarantee professional smooth transmission.The embodiment of the invention also provides a kind of service receiving method; Comprise: professional receiving terminal receives the user side link failure information of representing based on the form of connectivity testing message CCM, and said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field; It is the user side link failure message that said professional receiving terminal is judged this message according to the type of message identifying information in the connectivity testing message that receives; When confirming that according to failure indication information link breaks down; According to service identification information; Switch to and the link-attached link of the normal user side of professional transmitting terminal, receive the said business corresponding with said service identification information, wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V can carry user appointed information.
The embodiment of the invention also provides a kind of service receiving device, comprising:
Receiving element is used to receive the user side link failure information of representing based on the form of connectivity testing message CCM; Said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V can carry user appointed information;
Switch unit; Be used for after said receiving element receives user side link failure information; Judging this message according to the type of message identifying information in the connectivity testing message is the user side link failure message; When confirming that according to the type of message identifying information link breaks down, switch to and the link-attached link of the normal user side of professional transmitting terminal, receive the said business corresponding with said service identification information according to service identification information.
The embodiment of the invention is through when the user side link occurs fault; Generate user side link failure information; And through the link-attached network side link of this user side; Send this user side link failure information, thereby realized in time notifying the purpose of this user side link failure, improved the validity of signalling trouble.
The embodiment of the invention is through after receiving user side link failure information; According to the said user side link failure information that receives; Switch to and the link-attached link of the normal user side of professional transmitting terminal; Receive said business, thereby realized the smooth professional purpose that receives, guaranteed professional smooth transmission.
Description of drawings
Fig. 1 is the scene sketch map of the dual-homed access network side of user side equipment;
Fig. 2 is the scene sketch map that the business between user side equipment is passed through Network Transmission;
Fig. 3 is the flow chart of second kind of failure notification method of embodiment of the invention proposition;
Fig. 4 is the scene sketch map of first embodiment of the invention;
Fig. 5 is the scene sketch map of second embodiment of the invention;
Fig. 6 is the structural representation of the malfunction informing device of embodiment of the invention proposition;
Fig. 7 is the structural representation of the fault message generation unit of embodiment of the invention proposition;
Fig. 8 is the structural representation of the professional switching device shifter of embodiment of the invention proposition;
Fig. 9 is the structural representation of the switch unit of embodiment of the invention proposition.
Embodiment
The problem of mentioning to background technology; The embodiment of the invention proposes: when the user side link breaks down; Generation shows the user side link failure information of this user side link occurs fault, and based on the link-attached network side link of this user side, sends this user side link failure information; Thereby realized in time notifying the purpose of this user side link failure, improved the validity of signalling trouble.
The two ends of said network side link all can connect one or many user side links, and wherein the user side link of end connection is the user side link of professional transmitting terminal, and the user side link that the other end connects is the user side link of professional receiving terminal.
When the user side link occurs fault of professional transmitting terminal; Based on said network side link, by the user side link that connects said professional transmitting terminal, and the equipment of this network side link; This user side link failure is notified to handled side; For example notice is given professional switch terminal, is used for when current link occurs fault, switching to transport service on other normal link.Be example promptly below, set forth the failure notification method that the embodiment of the invention proposes user side link failure is notified to professional switch terminal.
Said professional switch terminal both can be to connect said network side link, and the equipment of the user side link of said professional receiving terminal, the for example PE2 among Fig. 1; Also can be professional receiving terminal, for example CE2 among Fig. 2 through the user side link, be connected to this network side link; Or the user side link through professional receiving terminal, be connected to other equipment of this network side link.
If a plurality of professional transmitting terminals are arranged through many user side links; Import business into to this network side link, then to professional switch terminal, during the user side link failure of informing business transmitting terminal; Also need the informing business switch terminal; Specifically be which bar user side link occurs fault, thereby can make the user side link failure notice of professional switch terminal, take the handled measure based on this business transmitting terminal;
And if a professional transmitting terminal is only arranged through a user side link, import business into to this network side link, then comprise two kinds of situation:
One, professional switch terminal is to connect said network side link; And the equipment of the user side link of said professional receiving terminal, at this moment, only need be to the user side link occurs fault of professional switch terminal informing business transmitting terminal; Which bar user side link occurs fault and need not notice specifically is; Owing to only connect a user side link, professional switch terminal is when knowing the user side link occurs fault, and nature can know it is which bar user side link occurs fault; Then can take the handled measure based on said signalling trouble.
Two, when professional switch terminal be user side link based on professional receiving terminal, with the link-attached equipment of this network side when (comprising professional receiving terminal), two kinds of situation are arranged also:
If 1 has a plurality of professional receiving terminals through many user side links; When receiving professional that this network side link spreads out of, then to professional switch terminal, during the user side link failure of informing business transmitting terminal; Which bar user side link occurs fault also needs the informing business switch terminal, specifically be;
2 and if a professional receiving terminal is only arranged through a user side link; When receiving professional that this network side link spreads out of; Then to professional switch terminal; Which bar user side link occurs fault during the user side link failure of informing business transmitting terminal, only needs the user side link occurs fault of informing business transmitting terminal, specifically be and need not notice.
Comprehensive above-mentioned situation, the failure notification method that the embodiment of the invention proposes can be divided into two kinds:
First kind: need be to professional switch terminal; Notice specifically is the method for the user side link occurs fault of the professional transmitting terminal of which bar; Being applicable to only has a professional transmitting terminal through a user side link; Import business into to the network side link, and a professional receiving terminal is only arranged, the situation of the business that reception network side link spreads out of through a user side link;
Second kind: need be to professional switch terminal; Notice specifically is the method for the user side link occurs fault of the professional transmitting terminal of which bar; Be applicable to exist a plurality of professional transmitting terminals or a plurality of professional receiving terminals, insert the situation of this network side link through many user side links.
Below in conjunction with Figure of description; Second kind of failure notification method of main elaboration; Promptly need be to professional switch terminal, notice specifically is the method for the user side link occurs fault of the professional transmitting terminal of which bar, as for first kind of failure notification method; To when setting forth said second kind of failure notification method, explain.
Fig. 3 can be known by this figure that for the flow chart of second kind of failure notification method of embodiment of the invention proposition based on above-mentioned mentality of designing, second kind of failure notification method that the embodiment of the invention proposes comprises the steps:
Step 1 is monitored the user side link of professional transmitting terminal transport service;
The mode of monitoring can adopt connective monitoring mode, and for example the 802.3ah mode also can adopt other existing monitoring modes.
Said service identification information comprises polytype, for example professional corresponding I-tag value, and every identification information that can be used in the said business of sign all can be used as service identification information.
Type according to service identification information is different, and the mode of obtaining said service identification also exists multiple.For example for the I-tag value; Because when service message gets into the network side link by the encapsulation of user side link; The network equipment that connects said user side link and network side link; Will be according to the different service message, shine upon and store corresponding I-tag information, therefore this moment, the said service identification information mode of obtaining was:
The network equipment of said connection user side link and network side link when monitoring said user side link occurs fault, reads said I-tag value in its data storehouse.
The user side link failure information of said generation can comprise said service identification information;
For the situation that many user side link occurs fault are arranged, different based on the number of the service identification that comprises in each user side link failure information, generating user side link failure information can have multiple mode.For example: suppose to have 1000 user side link occurs fault, can generate 2 user side link failure information, each user side link failure information comprises 500 service identification information respectively.Also can only generate a user side link failure information in addition, comprise 1000 said service identification information in this user side link failure information.
Said user side link failure information can adopt various ways, for example 802.1ag agreement or Y.1731 CCM message form, perhaps other message forms in the agreement.
Above-mentioned steps 2 mainly is to a plurality of professional transmitting terminals being arranged, through many user side links, importing business into to this network side link with step 3; Perhaps a plurality of professional receiving terminals through many user side links, receive that the situation of the business that this network side link spreads out of proposes; Though also can be applied to only have a professional transmitting terminal through a user side link; Import business into to this network side link, and a professional receiving terminal is only arranged through a user side link, receive the situation of the business that this network side link spreads out of; But this moment, said user side link failure information can comprise service identification information; This moment, this user side link failure information only need make professional switch terminal when receiving said user side link failure information, knew that the user side link occurs fault gets final product.
Step 4 with said user side link failure information, based on said network side link, sends to the professional switch terminal of said business.
Said network side link both can be static Mac in Mac tunnel, also can be the other types link.
Set forth the implementation procedure of above-mentioned flow process in detail below in conjunction with specific embodiment; Preferable; Adopt professional corresponding I-tag information as service identification information among the embodiment; Said network side link is static Mac in Mac tunnel, and said professional switch terminal is PE2, and said user side link failure information is represented with CCM user side link failure message form.
If the CCM message comprises following three information, then can make professional switch terminal can know that the user side link at which professional place breaks down:
The type of message identifying information based on this information, can be judged said type of message, and for example can judge said message is the user side link failure message;
Whether failure indication information based on this information, can be judged link and break down;
Fault Identification information, based on this information, can judge specifically is the user side link occurs fault at which professional place.
For a professional transmitting terminal only being arranged through a user side link; Import business into to the network side link, and a professional receiving terminal is only arranged, the situation of the business that reception network side link spreads out of through a user side link; Said Fault Identification information can be omitted; Owing to only connect a user side link, therefore professional switch terminal can be known the message of this user side link occurs fault according to failure indication information and type of message identifying information fully.
In the present embodiment, the 802.1ag agreement or Y.1731 the CCM message of agreement can adopt following mode, to comprise said three category informations.
1, the CCM message of 802.1ag agreement:
The CCM message of said 802.1ag agreement adopts message identification code (opcode), the sign type of message, and wherein the user can choose any value, the type of the message that identifying user transmits in the opcode value of reserving (6-255).
Therefore, for transmitting user side link failure, can in 6-255, select a value arbitrarily, as the type of message identifying information of CCM user side link failure message.
Whether said CCM user side link failure message can use remote failure Warning Mark position (RDI, Remote Defect Indication) to indicate link to break down, and is 0 to represent the link fault-free in the RDI value for example, and the RDI value is 1 to represent link occurs fault;
The CCM message comprises the TLV field, and said TLV field can be carried user appointed information.The TLV field is made up of three parts: T+L+V; Wherein T is used to stipulate the type of this TLV field, and L is used to stipulate the length of the V that reads, and V can carry user appointed information.
Therefore in the present embodiment, said CCM user side link failure message can be through carrying the I-tag value, indication and the corresponding professional link that belongs to of this I-tag value in its TLV field.
Wherein the TLV field mode of carrying the I-tag value has multiplely, for example can adopt following mode:
A carries a plurality of I-tag values, simultaneously like T+L+itag1+itag2 in the TLV field.
B, a plurality of TLV fields are carried the I-tag value respectively, like T+L+itag1, and T+L+itag2.
2, the CCM message of agreement Y.1731:
Similar with the CCM message of 802.1ag agreement, the CCM message of said Y.1731 agreement can use any 6-31,64-255 to reserve the opcode value, discerns the type of this CCM message;
Whether said CCM fault message also can adopt the RDI flag bit to indicate link to break down;
Said CCM fault message also can be through carrying the value of I-tag, indication and the corresponding professional link that belongs to of this I-tag value in the TLV field;
The TLV field organizational form of the organizational form of said TLV field and 802.1ag agreement is similar.
Fig. 4 is the scene sketch map of first embodiment of the invention; CE1 shown in the figure, CE2 and CE3 are respectively through user side link CE1-PE1, CE2-PE1 and CE3-PE1; Service message 1, service message 2 and service message 3 are passed to PE1; PE1 advances tunnel PE1-PE2 with the service message that receives 1 to 3 encapsulation again, and passes to professional switch terminal PE2 through this tunnel, passes to the follow-up business receiving terminal by PE2 at last.
Like the described encapsulation process of background technology, at encapsulation service message 1 to 3 o'clock, PE1 according to professional 1 to 3 shine upon I-tag1, I-tag2 and I-tag3 respectively value, and the value of said I-tag1, I-tag2 and I-tag3 is kept in the PE1.
Suppose the CE1-PE1 link occurs fault; PE1 obtains the value of the I-tag1 of preservation so; And generating CCM fault message based on the value of this I-tag1, said CCM fault message comprises the RDI sign, carry the TLV field of I-tag1 value and discern the opcode value of this type of message.
Wherein to represent this message be the user side link failure message that carries I-tag information to this opcode value, and RDI flag bit value 1 is represented link occurs fault; PE1 regularly sends to PE2 with said CCM fault message with pre-configured frequency then;
PE2 is after receiving this CCM fault message, and according to the opcode reserved value, judging this message is the user side link failure message that carries I-tag information; And further according to the value of I-tag1, the value that reaches the RDI flag bit is 1, and the user side link of judging professional 1 place breaks down;
In like manner, suppose that the CE2-PE1 link also breaks down at t1+n constantly, then processing procedure and said process are similar, and difference is that this moment, said CCM fault message can also increase the value of carrying I-tag2 in said TLV field; PE2 can be according to the value of this I-tag2, and the RDI flag bit be 1 judge professional 2 places user side link CE2-PE1 also break down;
In like manner; Suppose that the CE3-PE1 link also breaks down at t1+n+m constantly, then said CCM fault message can carry I-tag1, I-tag2 and three values of I-tag3 in said TLV field; And to combine the RDI flag bit be 1, shows that the user side link at professional 1 to 3 place all breaks down;
Suppose that at t1+n+m+k constantly, the CE2-PE1 link failure is eliminated, and carries I-tag1, two values of I-tag3 in the TLV field of then said CCM fault message, and to combine the RDI flag bit be 1, show professional 1 and the 3 user side link occurs fault that belong to;
Suppose that the CE1-PE1 link failure is also eliminated at t1+n+m+k+p constantly, the value that then said CCM fault message TLV field is carried I-tag3, and to combine the RDI flag bit be 1, shows that the user side link at professional 3 places breaks down;
Suppose that the CE3-PE1 link failure is also eliminated at t1+n+m+k+p+q constantly, the RDI flag bit is 0 in the then said CCM message, and can not carry the TLV field, and is normal in order to show the user side link.
Fig. 5 is the scene sketch map of second embodiment of the invention; Can know in conjunction with this figure; Present embodiment is with the difference of the foregoing description: professional switch terminal is connected with the network side link through the user side link of professional receiving terminal; This figure shown in scene with professional receiving terminal as professional switch terminal, two the professional receiving terminals that drawn among the figure (also being professional switch terminal), CE4 and CE5.After PE2 is receiving the user side link failure information that PE1 sends; Need be according to the service identification information that comprises in this user side link failure information; Confirm to send this user side link failure information to CE4 or CE5, therefore when the network side link is connected with a plurality of professional switch terminal, in the said user side link failure information; Need comprise service identification information; Make and to send user side link failure information according to this service identification information to this business corresponding service switch terminal, make it can switch to and send that receive on the link-attached link of this professional user side should business.
Certainly; As stated, if this network side link has only connected a said professional switch terminal, then a professional transmitting terminal is only being arranged through a user side link; When this network side link imports business into, can comprise said service identification in the said user side link failure information.
The failure notification method that the embodiment of the invention proposes not only through the network side link, has been realized the notice of user side link failure; Improved the validity of linkdown notification; And,, identify the fault message of respective link through identification service based on service identification information; Also in above-mentioned raising signalling trouble validity, improved the efficient of link failure sign.
Based on the failure notification method that the foregoing description proposes, the embodiment of the invention also provides a kind of malfunction informing device.
Fig. 6 can be known by this figure that for the structural representation of the malfunction informing device of the embodiment of the invention proposition malfunction informing device 10 that the embodiment of the invention proposes comprises:
Fault message generation unit 11 is used for when monitoring the user side link occurs fault of transport service, generates user side link failure information;
Fault information generation unit 12 is used for through the link-attached network side link of said user side, sends the user side link failure information that said fault message generation unit 11 generates.
Possibly exist many user side links to insert under the situation of same network side link; Can also be in user side link failure information; Carrying the professional corresponding service identification information on the user side link that breaks down, is the user side link occurs fault at which professional place to show.
Therefore the embodiment of the invention proposes a kind of concrete structure of said fault message generation unit 11.With reference to Fig. 7, the structural representation of the fault message generation unit that proposes for the embodiment of the invention, can know that by this figure said fault message generation unit 11 can specifically comprise:
Identification information obtains subelement 13, is used to obtain the user side link breaking down, the professional corresponding service identification information of transmission;
Fault message generates subelement 14, is used to generate comprise the user side link failure information that said identification information obtains the service identification information that subelement 13 obtains.
Wherein when the user side link of at least two professional transmitting terminals is connected to same network side link; If the user side link that breaks down has many; Number based on the service identification that comprises in each user side link failure information is different, and said fault message generates subelement 14 generation user side link failure information can have multiple mode.For example: suppose to have 1000 user side link occurs fault, can generate 2 user side link failure information, each user side link failure information comprises 500 service identification information respectively.Also can generate a user side link failure information in addition, comprise said 1000 said service identification information.
The user side link failure information that said fault message generation unit 11 generates can be represented based on multiple message form, and is preferable, can represent based on the form of CCM message.
Embodiment is said according to said method, said identification information obtain service identification that subelement 13 obtains can have multiple, I-tag value etc. for example.
Said fault information generation unit 12 can but be not limited to send said user side link failure information based on the static MAC in MAC tunnel that does not break down that transmits said business, can certainly be the link of other types.
The malfunction informing device that the embodiment of the invention proposes not only can pass through the network side link, realizes the notice of user side link failure; Improve the validity of linkdown notification; But also can through identification service, identify the fault message of respective link based on service identification information; Thereby when improving signalling trouble validity, improved the efficient of link failure sign.
Of background technology; Owing to lack a kind of method of the user side signalling trouble being given professional switch terminal; Professional switch terminal just can't be known said user side link failure, and therefore professional switch terminal also just can not be directed against said user side link failure, takes the handled measure; For example can't handoff links, to guarantee professional smooth transmission.
The embodiment of the invention has also proposed a kind of service receiving method, and with after the notice that receives said user side link occurs fault, handoff links receives professional, thereby guarantees professional smooth transmission.
When only having a user side link to be connected to the network side link; Said professional switch terminal (for example PE2 among Fig. 1 or the CE2 among Fig. 2) is after receiving user side link failure information; Know the user side link occurs fault, so can switch to the link-attached link of the normal user side of signal sending end on, receive the business that transmits on this user side link; Thereby make professional transmission smoothly, improved the success rate of service delivery.
In the time possibly existing many user side links to be connected to a network side link; User side link failure information possibly comprise service identification information; This moment, professional switch terminal can identify service identification information wherein after receiving user side link failure information, according to this service identification information; Judging is the user side link occurs fault at which professional place, is example with scene shown in Figure 2:
When user side link CE1-PE1 broke down, CE1 switched to user side link CE1-PE3 transport service, and PE1 is based on the failure notification method of embodiment of the invention proposition; Give PE2 with this signalling trouble; PE2 switches to over run tunnel and receives corresponding service, so just under the situation that user side link CE1-PE1 breaks down after knowing that this user side link CE1-PE1 breaks down; Guarantee smooth transmission professional on its link, improved the success rate of service delivery.
The embodiment of the invention is through after receiving said user side link failure information; Switch to the link-attached link of the normal user side of signal sending end on; Receive the business that transmits on this user side link, thereby make professional transmission smoothly, improved the success rate of service delivery.
Based on the service receiving method that the embodiment of the invention proposes, the embodiment of the invention has also proposed a kind of service receiving device, and with after receiving said user side link failure information, handoff links receives said business, improves the success rate of service delivery.
Fig. 8 can be known by this figure that for the structural representation of the service receiving device of the embodiment of the invention proposition service receiving device 20 that the embodiment of the invention proposes comprises:
Receiving element 21 is used to receive user side link failure information;
Switch unit 22 is used for after said receiving element 21 receives user side link failure information, switches to and the link-attached link of the normal user side of professional transmitting terminal, receives said business.
As stated; Possibly exist many user side links to be connected under the situation of a network side link; Can also be in user side link failure information; Carrying the professional corresponding service identification information on the user side link that breaks down, is the user side link occurs fault at which professional place to show.
Therefore the embodiment of the invention also proposes a kind of concrete structure of switch unit 22, and under the situation that is implemented in many user side link access network sidelinks, handoff links receives corresponding business, guarantees professional smooth transmission.
Fig. 9 is the structural representation of the switch unit of embodiment of the invention proposition; Can know by this figure and Fig. 8; In the user side link failure information that receives at receiving element 21; Include on the user side link that breaks down, during the professional corresponding service identification information of transmission, said switch unit 22 specifically comprises:
Service identification recognin unit 23 is used to identify said service identification information;
The service receiving device that the embodiment of the invention proposes is through after receiving said user side link failure information; Switch to the link-attached link of the normal user side of signal sending end on; Receive the business that transmits on this user side link; Thereby make professional transmission smoothly, improved the success rate of service delivery.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. a failure notification method is characterized in that, comprising:
When monitoring the user side link occurs fault of transport service; Generate user side link failure information; Said user side link failure information is included among the connectivity testing message CCM, and said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down;
Through the link-attached network side link of said user side; Send said user side link failure information to professional receiving terminal; Make said professional receiving terminal based on user side link failure information, take the handled measure, said CCM is with pre-configured frequency timed sending;
Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V carries user appointed information.
2. the method for claim 1 is characterized in that, said generation user side link failure information comprises:
Obtain the professional corresponding service identification information that transmits on the user side link that breaks down;
Generation comprises the user side link failure information of said service identification information.
3. method as claimed in claim 2 is characterized in that, said generation comprises the user side link failure information of said service identification information, comprising:
When at least two user side link occurs fault, generate at least two parts of user side link failure information;
Each part user side link failure information in said at least two parts of user side link failure information comprises at least one user side link that break down, the professional corresponding service identification information of transmission, and
Said at least two parts of user side link failure information, the summation of the service identification information that comprises equals on all user side links that break down the summation of the professional corresponding service identification information of transmission.
4. method as claimed in claim 2 is characterized in that, said generation comprises the user side link failure information of said service identification information, comprising:
When at least two user side link occurs fault, generate a user side link failure information;
Said user side link failure information comprises, on the user side link that each bar breaks down, and the professional corresponding service identification information of transmission.
5. like the described method of 1 to 4 each claim, it is characterized in that, also comprise:
After monitoring said user side link occurs fault, switch to and send said business on another normal user side link.
6. a malfunction informing device is characterized in that, comprising:
The fault message generation unit; Be used for when monitoring the user side link occurs fault of transport service; Generate user side link failure information; The user side link failure information that said fault message generation unit generates; Form based on connectivity testing message CCM representes, said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V carries user appointed information;
Fault information generation unit; Be used for through the link-attached network side link of said user side; The user side link failure information of sending said fault message generation unit generation is to professional receiving terminal; Make said professional receiving terminal based on user side link failure information, take the handled measure, said CCM is with pre-configured frequency timed sending.
7. device as claimed in claim 6 is characterized in that, said fault message generation unit specifically comprises:
Identification information obtains subelement, is used to obtain the user side link breaking down, the professional corresponding service identification information of transmission;
Fault message generates subelement, is used to generate comprise the user side link failure information that said identification information obtains the service identification information that subelement obtains.
8. device as claimed in claim 7 is characterized in that, said fault message generates subelement when at least two user side link occurs fault, generates at least two parts of user side link failure information;
Each part user side link failure information in said at least two parts of user side link failure information comprises at least one user side link that break down, the professional corresponding service identification information of transmission, and
Said at least two parts of user side link failure information, the summation of the service identification information that comprises equals on all user side links that break down the summation of the professional corresponding service identification information of transmission.
9. device as claimed in claim 7 is characterized in that, said fault message generates subelement when at least two user side link occurs fault, generates a user side link failure information;
Said user side link failure information comprises, on the user side link that each bar breaks down, and the professional corresponding service identification information of transmission.
10. a service receiving method is characterized in that, comprising:
Professional receiving terminal receives the user side link failure information of representing based on the form of connectivity testing message CCM, and said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V carries user appointed information;
It is the user side link failure message that said professional receiving terminal is judged this message according to the type of message identifying information in the connectivity testing message that receives; When confirming that according to failure indication information link breaks down; According to service identification information; Switch to and the link-attached link of the normal user side of professional transmitting terminal, receive the said business corresponding with said service identification information.
11. a service receiving device is characterized in that, comprising:
Receiving element is used to receive the user side link failure information of representing based on the form of connectivity testing message CCM; Said CCM comprises the type of message identifying information that is used to judge whether for the user side link failure message, be used to indicate the professional corresponding service identification information that transmits on failure indication information whether link break down and the user side link that breaks down; Said CCM is the CCM of 802.1ag agreement or the CCM of agreement Y.1731; Wherein represent said type of message identifying information through the message identification code opcode that reserves; Position RDI representes said failure indication information through the remote failure Warning Mark, carries said service identification information through the TLV field, and wherein T is used to stipulate the type of this TLV field; L is used to stipulate the length of the V that reads, and V carries user appointed information;
Switch unit; Be used for after said receiving element receives user side link failure information; Judging this message according to the type of message identifying information in the connectivity testing message is the user side link failure message; When confirming that according to failure indication information link breaks down, switch to and the link-attached link of the normal user side of professional transmitting terminal, receive the said business corresponding with said service identification information according to service identification information.
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| CN2007101873414A CN101163057B (en) | 2007-11-20 | 2007-11-20 | Fault notifying method and apparatus, and service receiving method and apparatus |
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| CN2007101873414A CN101163057B (en) | 2007-11-20 | 2007-11-20 | Fault notifying method and apparatus, and service receiving method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102355335A (en) * | 2011-09-13 | 2012-02-15 | 中兴通讯股份有限公司 | Unidirectional link detection result notification method and device |
| CN105515807B (en) * | 2014-09-25 | 2020-09-08 | 中兴通讯股份有限公司 | Up cfm message processing method and system and network data exchange equipment |
| CN105530181A (en) * | 2014-09-29 | 2016-04-27 | 中兴通讯股份有限公司 | Method and device for Ethernet transmission path switching, and Ethernet system |
| CN110020765B (en) * | 2018-11-05 | 2023-06-30 | 创新先进技术有限公司 | Service flow switching method and device |
| CN113395319B (en) * | 2021-04-26 | 2022-09-16 | 国网江西省电力有限公司经济技术研究院 | Method, system, electronic device and storage medium for sensing network fault |
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| CN1492623A (en) * | 2002-10-22 | 2004-04-28 | 华为技术有限公司 | Method for realizing link state feed-through in network |
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