CN102546361A - Method and device for notifying invalidation of transport plane - Google Patents
Method and device for notifying invalidation of transport plane Download PDFInfo
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- CN102546361A CN102546361A CN2010105942720A CN201010594272A CN102546361A CN 102546361 A CN102546361 A CN 102546361A CN 2010105942720 A CN2010105942720 A CN 2010105942720A CN 201010594272 A CN201010594272 A CN 201010594272A CN 102546361 A CN102546361 A CN 102546361A
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Abstract
The invention discloses a method for notifying invalidation of a transport plane, which includes: setting indication information for notifying invalidation of the transport plane; determining an end node of a path of a client layer after the node receives an instruction of invalidation of the transport plane; transmitting information of a control plane to the end node; and carrying corresponding indication information for notifying invalidation of the transport plane in the information of the control plane. The invention further discloses a device for notifying invalidation of the transport plane. By the aid of the scheme, invalidation notification of the transport plane can be reliably transmitted to the end node of the path of the client layer. The method is not restricted to running of a specific OAM (operation administration and maintenance) mechanism, and is more flexible and applicable.
Description
Technical field
The present invention relates to the data network annunciation techniques, relate in particular to a kind of the announcement and transmit the method and apparatus that lost efficacy in the plane.
Background technology
Internet protocol (IP in data communication; Internet Protocol)/multiprotocol label switching (MPLS; Multi Protocol Label Switch), based on the multiprotocol label switching (MPLS-TP of transport architecture; Multi Protocol Label Switch-Transport Profile), in the general multiple protocols label exchange networks such as (GMPLS, General Multi Protocol Label Switch), the transmission of customer traffic is encapsulated in label switched path (LSP; Label Switch Path) or pseudo-line (PW, Pseudo Wire) in.LSP is present in two LSR (LSR; Label Switch Router) between; Its signaling procedure adopts based on the resource reservation of traffic engineering confirms agreement (RSVP-TE; Resource Reservation Verification Protocol-Traffic Engineering), wherein the foundation of unidirectional LSP can be based on the scheme of describing among the RFC3209, and the foundation of bidirectional LSP can be adopted based on the scheme of describing among the RFC3473.PW can be divided into single-ended PW (SS-PW, Single Segment-PW) and multistage PW (MS-PW, Multi Segment-PW), and its signaling procedure adopts tag distribution protocol (LDP, Label Distribution Protocol); Wherein SS-PW is meant between two Provider Edges (PE, Provide Edge) and directly sets up PW, and middle not through other PE node, the mode of its foundation can be based on RFC4447; And MS-PW to be the PW that between two PE, creates need pass through one or more intermediate nodes, said intermediate node is called exchange PE (S-PE, Switching PE), it sets up process can be with reference to draft-ietf-pwe3-dynamic-ms-pw etc.
In these networks, data flow possibly be carried on above the PW, and PW is carried on the LSP after nested, is carried on the Section layer after LSP is nested, is carried on the physical link at last through the Section layer; If the Section of lower floor layer/LSP layer/PW layer is locked so, fault has perhaps taken place, then can influence the connectedness of the LSP or the PW on its upper strata.The network of lower floor must provide a kind of mechanism; Announcement transmits the factor that lost efficacy in the plane to the upper strata; The network on upper strata just can be made correct decision-making based on these indications; Such as indicating factors such as (LDI, Link Down Indication) to upper strata announcement locking (Lock)/alarm indication signal (AIS, Alarm Indication Signal)/link failure.Operation, the management of draft draft-ietf-mpls-tp-fault through having defined a mismanage (Fault Management), safeguard (OAM, Operation Administration Maintenance) message, notify above-mentioned factor transmitting the plane.Yet transmitting the plane is not always to have corresponding OAM(Operation Administration Maintenance), when corresponding function is not supported in the transmission plane, just can't transmit the factor that lost efficacy in the plane to the upper strata announcement.
In addition, when the heterogeneous network intercommunication, during such as optical-fiber network and IP network intercommunication; Possibly can't move between these two networks specific OAM mechanism is such as Y.1731 OAM or Ethernet 802.1ag, at this moment; When optical-fiber network breaks down, also need pass through User Network Interface (UNI, User Network Interface) the IP network of this fault delivery to the upper strata; But owing to do not have specific OAM mechanism, can't be with the IP network of fault delivery to the upper strata.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of the announcement to transmit the method and apparatus that lost efficacy in the plane, can be reliably with transmitting the end node of plane failure notification to client trail.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that lost efficacy in the plane that transmits of announcing provided by the invention is set announcement and is transmitted the indication information that lost efficacy in the plane; This method also comprises:
Node is confirmed the end node of client trail after receiving the instruction that transmits the plane inefficacy, send control plane message to said end node, in said control plane message, carries and transmits the corresponding indication information that lost efficacy in the plane.
In the such scheme, said setting announcement transmits the indication information that lost efficacy on the plane and is: in the type-length-value (TLV) of the object of the RSVP-TE of expansion and/or LDP, set announcement and transmit the indication information that lost efficacy in the plane.
In the such scheme, said in the object of RSVP-TE of expansion, set announcement and transmit the indication information that lost efficacy in the plane, for: in Error_Value, set announcement and transmit the indication information that lost efficacy in the plane at the Error_Spec object of the RSVP-TE of expansion.
In the such scheme, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI.
In the such scheme; Said in the TLV of the LDP that expands; Set announcement and transmit the indication information that lost efficacy in the plane, for: in flag bit, set announcement and transmit the indication information that lost efficacy in the plane at the pseudo-line states type-length-value (PW Status TLV) of the LDP of expansion.
In the such scheme, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI.
In the such scheme, said control plane message comprises: the Notify message of RSVP-TE, ResvErr message or PathErr message; Or the Notification message among the LDP.
A kind of announcement provided by the invention transmitted the device that lost efficacy in the plane, and this device comprises: module is set, confirms node module, announcement module; Wherein,
Module is set, is used to set announcement and transmits the indication information that lost efficacy in the plane;
Confirm node module, be used for after receiving the instruction that transmits the plane inefficacy, confirming the end node of client trail;
Announcement module is used for sending control plane message to the end node of client trail, in said control plane message, carries and transmits the corresponding indication information that lost efficacy in the plane.
In the such scheme, the said module that is provided with specifically is used at the object of the RSVP-TE that expands and/or the TLV of LDP, sets announcement and transmits the indication information that lost efficacy in the plane.
In the such scheme; The said module that is provided with; Specifically be used for Error_Value at the Error_Spec of RSVP-TE object; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
And/or; The said module that is provided with; Specifically be used for flag bit at the PW of LDP Status TLV; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI.
A kind of announcement provided by the invention transmitted the method and apparatus that lost efficacy in the plane; Node is after receiving the instruction that transmits the plane inefficacy; Confirm the end node of client trail, send control plane message, in said control plane message, carry and transmit the corresponding indication information that lost efficacy in the plane to this end node; Like this, because control plane always can reach based on the IP route, can be reliably with transmitting the plane failure notification to the end node that transmits the client trail that carries on the plane, this method is not limited to the specific OAM mechanism of operation, more flexibly, be suitable for.
Description of drawings
Fig. 1 realizes announcing the schematic flow sheet that transmits the method that lost efficacy on the plane for the present invention;
Fig. 2 is the sketch map that LSP layer announcement Section layer lost efficacy in the embodiment of the invention one;
Fig. 3 is the sketch map that PW layer announcement LSP layer lost efficacy in the embodiment of the invention two;
Fig. 4 is the sketch map that across a network announcement LSP layer lost efficacy in the embodiment of the invention three;
Fig. 5 realizes announcing the structural representation that transmits the device that lost efficacy on the plane for the present invention.
Embodiment
Basic thought of the present invention is: set announcement and transmit the indication information that lost efficacy in the plane; Node is confirmed the end node of client trail after receiving the instruction that transmits the plane inefficacy, to the end node transmission control plane message of client trail, in said control plane message, carry and transmit the corresponding indication information that lost efficacy in the plane.
Through accompanying drawing and specific embodiment the present invention is done further detailed description below.
The present invention realizes announcing and transmits the method that lost efficacy in the plane, and as shown in Figure 1, this method comprises following step:
Step 101: set announcement and transmit the indication information that lost efficacy in the plane;
Concrete, expand the object of RSVP-TE and/or the TLV of LDP in advance, in the TLV of the object of the RSVP-TE of expansion and/or LDP, set announcement and transmit the indication information that lost efficacy in the plane;
Said in the object of the RSVP-TE that expands; Set announcement and transmit the indication information that lost efficacy in the plane; Can be in the Error_Value of Error_Spec object at the RSVP-TE of expansion; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
Said in the TLV of the LDP that expands; Set announcement and transmit the indication information that lost efficacy in the plane; Can be in the flag bit of PW Status TLV of the LDP of expansion; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
Among the Error_Value of Error_Spec object of said RSVP-TE in expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Can be: in RSVP-TE, increase the value (Value) that is used to indicate the factor that transmits the plane inefficacy among the Error_Value of Error_Spec object; As increase by three values, be respectively the indication information of Lock, the indication information of AIS and the indication information of LDI;
In the flag bit of PW Status TLV of said LDP in expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Can be: in the flag bit of the PW of LDP Status TLV, newly be provided for indicating the flag bit (bit) that transmits the factor that lost efficacy on the plane; As three flag bits newly are set, be respectively the indication information of Lock, the indication information of AIS, the indication information of LDI.
Step 102: node is after receiving the instruction that transmits the plane inefficacy; Confirm to transmit the end node of the client trail that carries on the plane; And, in said control plane message, carry and transmit the corresponding indication information that lost efficacy in the plane to this end node transmission control plane message;
In this step, said control plane message comprises: the notice among the RSVP-TE (Notify) message, ResvErr message or PathErr message; Or the notice among the LDP (Notification) message etc.
Specify the implementation procedure and the principle of method of the present invention below in conjunction with specific embodiment.
In embodiment one and two; The path state request of transmitting between the node is with RSVP (RSVP; Resource Reservation Protocol) path (Path) message in the message realizes, and wrong feedback occurs through the PathErr Message Processing path state request in the RSVP message; The reservation state request of transmitting between the node realizes through the Resv message in the RSVP message, and wrong feedback occurs through the ResvErr Message Processing reservation state request in the RSVP message; Notify message can make the relevant incident that connects of a network element notice remote network element (generally being the entrance and exit network element); It generally is failure event; After receiving the Path message that contains notice request object (Notify Request Object) at network element; The message of can giving notice, said notification message includes an Error_Spec object and message id object (Message ID Object), and Error_Spec object the inside comprises an Error_Code and Error_Value field.Simultaneously, the network element of accepting notification message can send an acknowledge message (Ack Message), and acknowledge message comprises a message id and confirms object (Message ID Ack Object).
Embodiment one
In the prior art, the Error_Code of Error_Spec object is 25, and its implication is announcement wrong (Notify Error).In the present embodiment, under this Error_Code, increase a new Error_Value=15 in advance, its implication is lock notification (Lock reporting), as the indication information of Lock.Certainly, also can new Error_Code of redetermination, under the Error_Code of redetermination, increase new Error_Value.The method that present embodiment provides a kind of LSP layer announcement Section layer to lose efficacy, as shown in Figure 2, A, B, C, D, five network elements of E are arranged, a unidirectional LSP1 is arranged between A, B, the C, A is the first node of LSP1, C is the destination node of LSP1.Section layer in the present embodiment between supposition A and the B is owing to factors such as management maintenances, and the keeper has descended a Lock order for the B node, requires before the Lock order is removed, can not transmit data flow between A and the B, and then the method for present embodiment comprises:
After the B node is received the Lock order,, check the LSP layer on the Section layer according to from destination node as Section layer between A and the B; Confirm LSP through this node; When the B node is confirmed LSP1 through self, be unidirectional LSP according to LSP1, its destination node is C; The B node carries the Error_Value=15 of Error_Spec object in the control plane message of sending to the C node information, notice C Node B node is locked;
Wherein, said control plane message can be Notify or ResvErr message, is that the B node once received the Resv message that has Notify Request object that the C node sends before this but the B node sends the precondition of Notify message; If not then the B node can only send ResvErr message, said ResvErr message can only one be jumped is delivered to the C node, and speed will be slowly than Notify message.
Further; Carry the information of the Error_Value=15 of Error_Spec object when B node transmission Nofity message and give the C node; When notifying this lock event; The C node of accepting Nofity message is known this lock event, and sends Ack Message, and said Ack Message comprises a Message ID Ack Object; Carry the information of the Error_Value=15 of Error_Spec object when B node transmission ResvErr message and give the C node, when notifying this lock event, the C node does not return acknowledge message after knowing this lock event.
Further, the frequency of sending said Notify or ResvErr message is set, can be set to 10ms, 1s etc., remove up to this Lock order at the B node;
The incident that said Lock order is removed can identify through increasing an Error_Value=16 in advance newly; Its implication is that (Lock clear) removed in the Lock order; The indication information that order is removed as Lock; That is: when the Lock order was removed, the B node sent the control plane message of the Error_Value=16 that carries the Error_Spec object to the C node.
Present embodiment has just been described the flow process through control plane announcement Lock incident, and is similar for announcement flow process and the present embodiment of AIS and LDI, promptly increases new Error_Value, indicates AIS and LDI, and the removal of these incidents, repeats no more here.
Embodiment two
The method that present embodiment provides a kind of PW layer announcement LSP layer to lose efficacy, as shown in Figure 3, A, B, C, D, five network elements of E are arranged; A unidirectional LSP1 is arranged between A, B, the C, and A is the first node of LSP1, and C is the destination node of LSP1; A multistage PW1 is arranged between A and the E, and C is exchange PE (S-PE, Switching-PE) node of PW1; It is whole PE (T-PE, Terminating-PE) node that A and E are respectively PW1.What the establishment of PW1 was adopted is the LDP signaling, carries PW state TLV (PW Status TLV) in the Notification message in the LDP signaling, is used for the state of the logical PW1 of arrow.Said Notification message is initiated by the T-PE node of PW usually; Certainly; Said Notification message also can be initiated by the S-PE node of PE; When initiating by the S-PE node of PE; Can in said Notification message, insert the identifier of a S-PE node, be used for showing to be the said Notification message that this S-PE initiates, the concrete details process please refer to draft-ietf-pwe3-segmented-pw-14.txt.In the present embodiment, three flag bits are set newly in PW Status TLV, are respectively the indication information of Lock, the indication information of AIS, the indication information of LDI.Certainly, here just as an example with the expansion among the PW Status TLV, fully can TLV of redetermination in the practical operation, utilize three flag bits that are provided with among the TLV of redetermination to indicate Lock, AIS, LDI.LSP1 in the present embodiment between supposition A and the C is owing to factors such as management maintenances, and the keeper has descended a Lock order for the C node, requires the LSP1 between A and the C before the Lock order is removed, can not transmit data flow, and then the method for present embodiment comprises:
After the C node is received the Lock order; According to from destination node as LSP1 between A and the C, check the PW layer on the LSP1 layer, confirm PW through this node; When the C node is confirmed PW1 through this node; According to PW1 head and the tail node is respectively A and E, and the C node is at the PW Status TLV that in the Notification message of A and the transmission of E node, carries the set of Lock flag bit, with lock event notice A and the E node of C node LSP1.
Further, the frequency of sending said Notification message is set, can be set to 1Oms, 1s etc., remove up to this locking condition at the C node; The incident that said locking is removed can identify through removing the Lock flag bit; That is: when Lock order was removed, the C node sent with the E node to A and carries the control plane message that the Lock flag bit is removed the PW Status TLVError_Spec of set, and this message only transmission once also can be arranged to send 3 inferior.
Present embodiment has just been described the flow process through control plane announcement Lock incident, and is similar for announcement flow process and the present embodiment of AIS and LDI, repeats no more here.
Embodiment three
In the prior art, the Error code of Error_Spec object is 25, and its implication is the announcement mistake.In the present embodiment, under this Error Code, increase a new Error_Value=15 in advance, its implication is lock notification (Lock reporting), is used for the indication information as Lock.The method that present embodiment provides a kind of across a network announcement LSP layer to lose efficacy, as shown in Figure 4, B and C node are optical network node, move based on OAM G.709 machine-processed therebetween; A and D node are router, and be interconnected through Ethernet interface between router and the optical-fiber network.LSP1 based on packet switching is arranged between A and the D; (BFD is surveyed in the two-way forwarding of operation above; Bidirectional Forwarding Detection); This LSP1 is carried between the B/C node on light data cell (ODU, Optical Data Unit) the k passage, and the last operation of ODUk is machine-processed based on OAM G.709.ODUk layer between present embodiment supposition B and the C is owing to factors such as management maintenances, and the keeper has descended a Lock order for the B node, requires before the Lock order is removed, can not transmit data flow between B and the C, and then the method for present embodiment comprises:
After the B node is received the Lock order,, check the LSP layer on the ODUk layer, confirm LSP through this node according to from destination node as ODUk layer between B and the C.When the B node is confirmed LSP1 through self; According to LSP1 is bidirectional LSP; Its head and the tail node is respectively A and D node, the B node carries the Error_Value=15 of Error_Spec object in the control plane message of sending to the A node information, and notice A Node B node is locked;
Wherein, said control plane message can be Notify or PathErr message, is that the B node once received the Path message that has Notify Request object that the A node sends before this but the B node sends the precondition of Notify message; If not then the B node can only send PathErr message, said PathErr message can only one be jumped is delivered to the A node, and speed will be slowly than Notify message.
Further; Carry the information of the Error_Value=15 of Error_Spec object when B node transmission Nofity message and give the A node; When notifying this lock event, the A node of accepting Nofity message sends AckMessage, and said Ack Message comprises a Message ID Ack Object; Carry the information of the Error_Value=15 of Error_Spec object when B node transmission PathErr message and give the A node, when notifying this lock event, the A node does not return acknowledge message.
Further, the frequency of sending said Notify or ResvErr message is set, can be set to 10ms, 1s etc., remove up to this Lock order at the B node;
The incident that said Lock order is removed can identify through increasing an Error_Value=16 in advance newly; Its implication is that locking is removed; The indication information that order is removed as Lock; That is: when the Lock order was removed, the control plane message that the B node sends the Error_Value=16 that carries the Error_Spec object to the A node notified A node Lock order to remove; This control plane message can only be sent once; Can certainly be arranged to send 3 inferior.
Present embodiment has just been described the flow process through control plane announcement Lock incident, and is similar for announcement flow process and the present embodiment of AIS and LDI, promptly increases new Error_Value, indicates AIS and LDI, and the removal of these incidents, repeats no more here.
In order to realize said method, the present invention also provides a kind of the announcement to transmit the device that lost efficacy in the plane, and as shown in Figure 5, this device comprises: module 51 is set, confirms node module 52, announcement module 53; Wherein,
Module 51 is set, is used to set announcement and transmits the indication information that lost efficacy in the plane;
Confirm node module 52, be used for after receiving the instruction that transmits the plane inefficacy, confirming to transmit the end node of the client trail that carries on the plane;
Announcement module 53 is used for sending control plane message to the end node of client layer, and according to the instruction of confirming the transmission plane inefficacy that node module 52 is received, in said control plane message, carries and transmit the corresponding indication information that lost efficacy in the plane;
The said module 51 that is provided with specifically is used at the object of the RSVP-TE that expands and/or the TLV of LDP, sets announcement and transmits the indication information that lost efficacy in the plane;
The said module 51 that is provided with is in the object of the RSVP-TE of expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Be specially: the said module 51 that is provided with is in the Error_value of the Error_Spec object of the RSVP-TE of expansion; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
The said module 51 that is provided with is in the Error_value of the Error_Spec object of the RSVP-TE of expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Be specially: the said module 51 that is provided with increases the value that is used to indicate the factor that transmits the plane inefficacy in the Error_value of the Error_Spec object of the RSVP-TE of expansion; As increase by three values, be respectively the indication information of Lock, the indication information of AIS and the indication information of LDI;
The said module 51 that is provided with is in the TLV of the LDP of expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Be specially: the said module 51 that is provided with is in the flag bit of the PW Status TLV of the LDP of expansion; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
The said module 51 that is provided with is in the flag bit of the PW Status TLV of the LDP of expansion; Set announcement and transmit the indication information that lost efficacy in the plane; Be specially: the said module 51 that is provided with newly is provided for indicating the flag bit that transmits the factor that lost efficacy on the plane in the flag bit of the PW Status TLV of the LDP of expansion; As three flag bits newly are set, be respectively the indication information of Lock, the indication information of AIS, the indication information of LDI.
Because control plane always can reach based on the IP route, through scheme of the present invention, can be reliably with the end node node of transmission plane failure notification to client trail, this method is not limited to the specific OAM mechanism of operation, and is flexible more, suitable.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. announce the method that transmits the plane inefficacy for one kind, it is characterized in that, set announcement and transmit the indication information that lost efficacy in the plane; This method also comprises:
Node is confirmed the end node of client trail after receiving the instruction that transmits the plane inefficacy, send control plane message to said end node, in said control plane message, carries and transmits the corresponding indication information that lost efficacy in the plane.
2. method according to claim 1; It is characterized in that; Said setting announcement transmits the indication information that lost efficacy on the plane: confirm to set announcement and transmit the indication information that lost efficacy in the plane in the type-length-value (TLV) of object and/or tag distribution protocol (LDP) of agreement (RSVP-TE) at the resource reservation based on traffic engineering of expansion.
3. method according to claim 2; It is characterized in that; Said in the object of the RSVP-TE that expands; Set announcement and transmit the indication information that lost efficacy in the plane, for: in Error_Value, set announcement and transmit the indication information that lost efficacy in the plane at the Error_Spec object of the RSVP-TE of expansion.
4. method according to claim 3; It is characterized in that; The indication information that lost efficacy in said transmission plane comprises one of following or combination in any: the indication information of the indication information of locking (Lock), the indication information of alarm indication signal (AIS), link failure indication (LDI).
5. method according to claim 2; It is characterized in that; Said in the TLV of the LDP that expands; Set announcement and transmit the indication information that lost efficacy in the plane, for: in flag bit, set announcement and transmit the indication information that lost efficacy in the plane at the pseudo-line states type-length-value (PW Status TLV) of the LDP of expansion.
6. method according to claim 5 is characterized in that, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI.
7. according to each described method of claim 1 to 6, it is characterized in that said control plane message comprises: the Notify message of RSVP-TE, ResvErr message or PathErr message; Or the Notification message among the LDP.
8. announce and transmit the device that lost efficacy in the plane for one kind, it is characterized in that this device comprises: module is set, confirms node module, announcement module; Wherein,
Module is set, is used to set announcement and transmits the indication information that lost efficacy in the plane;
Confirm node module, be used for after receiving the instruction that transmits the plane inefficacy, confirming the end node of client trail;
Announcement module is used for sending control plane message to the end node of client trail, in said control plane message, carries and transmits the corresponding indication information that lost efficacy in the plane.
9. device according to claim 8 is characterized in that, the said module that is provided with specifically is used at the object of the RSVP-TE that expands and/or the TLV of LDP, sets announcement and transmits the indication information that lost efficacy in the plane.
10. device according to claim 9; It is characterized in that; The said module that is provided with specifically is used for the Error_Value at the Error_Spec of RSVP-TE object, sets announcement and transmits the indication information that lost efficacy in the plane; The indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI;
And/or; The said module that is provided with; Specifically be used for flag bit at the PW of LDP Status TLV; Set announcement and transmit the indication information that lost efficacy in the plane, the indication information that lost efficacy in said transmission plane comprises one of following or the indication information of combination in any: Lock, the indication information of AIS, the indication information of LDI.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110392318A (en) * | 2019-07-29 | 2019-10-29 | 烽火通信科技股份有限公司 | The method of calibration and system in the channel plane layer LSP are controlled in ASON |
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| CN101150444A (en) * | 2007-10-30 | 2008-03-26 | 中兴通讯股份有限公司 | A maintenance method upon service alarm generation in automatic switching optical network system |
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| CN110392318A (en) * | 2019-07-29 | 2019-10-29 | 烽火通信科技股份有限公司 | The method of calibration and system in the channel plane layer LSP are controlled in ASON |
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