CN105591861A - Method and device for creating label switch path (LSP) - Google Patents
Method and device for creating label switch path (LSP) Download PDFInfo
- Publication number
- CN105591861A CN105591861A CN201410557169.7A CN201410557169A CN105591861A CN 105591861 A CN105591861 A CN 105591861A CN 201410557169 A CN201410557169 A CN 201410557169A CN 105591861 A CN105591861 A CN 105591861A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- node
- protection
- lsp
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a method and a device for creating a label switch path (LSP), which relates to the technical field of communication for solving the problem of low stability of communication between nodes as a corresponding protection tunnel can not be built for a tunnel built by triggering in a condition in which a PCE (Path Computation Element) actively triggers to build the tunnel in the prior art. The creating method comprises steps: the PCE sends an LSP initialization message to a head node of the tunnel to enable each node in the main tunnel to acquire protection tunnel indication parameters, wherein the LSP initialization message carries the main tunnel information and the protection tunnel indication parameters; and according to the feedback on the protection tunnel indication parameters by each node in the main tunnel, the PCE determines a protection tunnel for each corresponding node.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of creation method of label switching path LSPAnd device.
Background technology
PCE (PathComputationElement, calculate circuit component) be in a network domains, dispose one orThe equipment of Ji Taiyousuan road function, is specifically designed to as the node calculation road in network. In network, need to calculate the mould on roadIn piece, be provided with PCC (PathComputationCustomer calculates road client), it can pass through PCEP(PCEprotocol, PCE agreement) sends to PCE and calculates road request message, receives the calculation that PCE calculatesRoad result, and initiate RSVP (ResourceReservationProtocol, resource reservation according to calculating road resultAgreement) signaling procedure carries out route.
Except carrying out path computing according to the request of PCC, PCE can also be as required, at some netsBetween network node, initiatively trigger and set up LSP (labelswitchpath, label switched path). For example,, when oneIndividual application needs a newly-built tunnel with particular constraints, or existing tunnel bandwidth is inadequate, needs newly-builtArticle one, when tunnel carries out the situation generations such as load sharing, all need PCE initiatively to set up corresponding tunnel.
But in the situation that tunnel is set up in PCE active triggering, prior art cannot be to trigger to set upProtection tunnel is set up in tunnel. In view of individual node fault in network is more common, if do not set up guarantorProtect the mechanism in tunnel, the stability of inter-node communication will reduce greatly.
Summary of the invention
The technical problem to be solved in the present invention is to provide creation method and the device of a kind of LSP, existing in order to solveThere is PCE in technology (PathComputationElement calculates circuit component) initiatively to trigger the situation of setting up tunnelUnder, cannot set up corresponding protection tunnel, low the asking of stability of inter-node communication for triggering the tunnel of setting upTopic.
On the one hand, the invention provides the creation method of a kind of LSP, comprising: PCE sends to tunnel first nodeLSP initial message, carries main tunnel information and protection tunnel instruction ginseng in described LSP initial messageNumber, so that the each node in described main tunnel is known described protection tunnel indication parameter; Described calculation circuit componentPCE is the feedback to described protection tunnel indication parameter according to the each node in described main tunnel, is each corresponding jointPoint is determined protection tunnel.
Optionally, described PCE according to the each node in described main tunnel to described protection tunnel indication parameterFeedback, for each corresponding node determine protection tunnel specifically comprise: described PCE receives from described main tunnelThe protection tunnel calculation road request of the each node in road; Described PCE according to the calculation road request of described protection tunnel isDescribed each node determination protection tunnel also sends the protection tunnel information of determining to each corresponding node.
Optionally, described protection tunnel indication parameter comprises protection tunnel type.
Optionally, described protection tunnel type comprise the quick heavy-route of DETOUR or FACILITY quickHeavy-route.
On the other hand, embodiments of the invention also provide the creation method of a kind of LSP, comprising: the first joint in tunnelPoint receives the LSP initial message from PCE, in described LSP initial message, carries main tunnel informationWith protection tunnel indication parameter; Described tunnel first node creates main tunnel according to described LSP initial message,And other each nodes in described main tunnel send described protection tunnel indication parameter; In described main tunnelEach node is set up corresponding protection tunnel according to described protection tunnel indication parameter.
Optionally, described tunnel first node creates main tunnel according to described LSP initial message, and to describedOther each nodes in main tunnel send described protection tunnel indication parameter and specifically comprise: described tunnel first nodeInitiate RSVP signaling according to described LSP initial message and create main tunnel, in described RSVP signaling, carryDescribed protection tunnel indication parameter.
Optionally, the each node in described main tunnel is set up corresponding guarantor according to described protection tunnel indication parameterProtecting tunnel specifically comprises: the each node in described main tunnel according to described protection tunnel indication parameter to describedPCE sends protection tunnel calculation road request; Each node in described main tunnel receives the guarantor from described PCEProtect tunnel information and set up corresponding protection tunnel according to described protection tunnel information.
On the other hand, the present invention also provides the creation apparatus of a kind of LSP, comprising: transmitting element, for toTunnel first node sends LSP initial message, in described LSP initial message, carry main tunnel information andProtection tunnel indication parameter, so that the each node in described main tunnel is known described protection tunnel indication parameter;Determining unit, described PCE according to the each node in described main tunnel to described protection tunnel indication parameterFeedback, for each corresponding node is determined protection tunnel.
Optionally, described determining unit specifically for: receive the protection from the each node in described main tunnelTunnel calculation road request; Be described each node determination protection tunnel to respectively according to the calculation road request of described protection tunnelCorresponding node sends the protection tunnel information of determining.
On the other hand, the present invention also provides the creation apparatus of a kind of LSP, comprising: receiving element, and for connecingReceive the LSP initial message from PCE, in described LSP initial message, carry main tunnel information and guarantorProtect tunnel indication parameter; Main tunnel creation unit, for the described LSP receiving according to described receiving elementInitial message, creates main tunnel and sends described protection tunnel to other the each nodes in described main tunnel and refer toShow parameter; Protection tunnel creation unit, for the described protection tunnel sending according to described main tunnel creation unitRoad indication parameter is that corresponding protection tunnel is set up in described main tunnel.
The creation method of the LSP that the embodiment of the present invention provides and device, when PCE wants initiatively at certain two jointWhile setting up LSP between some, can send LSP initial message to tunnel first node, initial at this LSPChange in message and carry main tunnel information and protection tunnel indication parameter, the each node in main like this tunnel can obtainKnow corresponding protection tunnel indication parameter and described protection tunnel indication parameter is made to corresponding feedback, therebyMake PCE be fed back to the definite corresponding protection of each corresponding node tunnel according to this, effectively improved nodeBetween communication stability.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the creation method of the LSP that provides of the embodiment of the present invention;
Fig. 2 is the another kind of flow chart of the creation method of the LSP that provides of the embodiment of the present invention;
Fig. 3 is a kind of detailed flow chart of the creation method of the LSP that provides of the preferred embodiment of the present invention;
Fig. 4 is a kind of data structure schematic diagram of protecting tunnel indication parameter in the preferred embodiment of the present invention;
Fig. 5 is a kind of structural representation of the creation apparatus of the LSP that provides of the embodiment of the present invention;
Fig. 6 is the another kind of structural representation of the creation method of the LSP that provides of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail. Should be appreciated that concrete enforcement described hereinExample only, in order to explain the present invention, does not limit the present invention.
As shown in Figure 1, embodiments of the invention provide a kind of creation method of label switching path LSP, bagDraw together:
S11, PCE sends LSP initial message to tunnel first node, in described LSP initial messageCarry main tunnel information and protection tunnel indication parameter, so that the each node in described main tunnel is known described guarantorProtect tunnel indication parameter;
S12, described PCE is anti-to described protection tunnel indication parameter according to the each node in described main tunnelFeedback, for each corresponding node is determined protection tunnel.
The creation method of the LSP that the embodiment of the present invention provides, when PCE wants initiatively between certain two nodeWhile setting up LSP, can send LSP initial message to tunnel first node, at this LSP initial messageIn carry main tunnel information and protection tunnel indication parameter, the each node in main like this tunnel can be known correspondenceProtection tunnel indication parameter and described protection tunnel indication parameter is made to corresponding feedback, thereby make PCECan be fed back to each corresponding node and determine corresponding protection tunnel according to this, effectively improve inter-node communicationStability.
It should be noted that, the embodiment of the present invention relates to PCEP and two agreements of RSVP, internodal biographyDefeated path has different appellations in two agreements. For example in PCEP, be called LSP, and at RSVPIn be called tunnel, but the two is identical in essence.
Concrete, in step S11, when PCE need to be between two nodes when a newly-built tunnel,First calculate a main tunnel between these two nodes, main tunnel information is sent to the first joint in tunnelPoint. If heavy-route fast need to make node on this main tunnel break down in main tunnel time,Can on the basis of main tunnel information, increase protection tunnel indication parameter, by main tunnel information and protection tunnelIndication parameter is carried in LSP initial message, self need to build so that each node in main tunnel is knownVertical corresponding protection tunnel.
Optionally, the LSP initial message that PCE sends to tunnel first node can be PCInitiate message.Due in PCInitiate message, data be all with TLV (TYPELENGTHVALUE, type,Length, value) form exist, therefore, protection tunnel indication parameter newly-increased in the present embodiment also will accord withClose such TLV form. Wherein, in PCInitiate message, also do not determined to one of type assignmentThe value of justice, as make TYPE=22, length value represents this TLV form protection tunnel indication parameter altogetherThe byte number occupying, optional, LENGTH=4, VALUE can record protection tunnel instruction ginsengThe particular content of number, in one embodiment of the invention, VALUE can be expressed as one 32Flag (mark), wherein each may be used to indicate a kind of protection tunnel type. For example, make whereinA certain position represents DETOUR (detouring) FRR (fastreroute, fast heavy-route), when this position is set to, represent that each node in main tunnel need to set up the quick heavy-route protection of DETOUR mode, when this at 1 o'clockPosition, by clear 0 o'clock, represents that the each node in main tunnel does not need to set up the quick heavy-route of DETOUR modeProtection. FACILITY (equipment) fast the other types such as heavy-route protection tunnel-like seemingly, herein no longerExplanation one by one. When this flag of 32 is all by clear 0 time, represent that each node in main tunnel is without foundationProtection tunnel.
Particularly, in step S12, described calculation circuit component PCE is according to the each joint in described main tunnelThe feedback of point to described protection tunnel indication parameter, determine protection tunnel for each corresponding node and specifically can comprise:
Described calculation circuit component PCE receives the protection tunnel calculation road request from the each node in described main tunnel;
Described calculation circuit component PCE is described each node determination protection tunnel according to the calculation road request of described protection tunnelRoad also sends the protection tunnel information of determining to each corresponding node.
That is to say, protection tunnel indication parameter has only indicated each node in main tunnel need to set up guarantorProtect tunnel, but the concrete Path selection in protection tunnel and set up be by each node in main tunnel toPCE sends and protects calculation road, tunnel request message to start. Optionally, at protection calculation road, tunnel request messageIn can carry various calculations road constraint, PCE can calculate corresponding protection tunnel according to these constraints.
Accordingly, embodiments of the invention also provide a kind of creation method of label switching path LSP, as figureShown in 2, the method comprises:
S21, tunnel first node receives the LSP initial message from PCE, and described LSP initializes and disappearsIn breath, carry main tunnel information and protection tunnel indication parameter;
S22, described tunnel first node creates main tunnel according to described LSP initial message, and to described masterOther each nodes in tunnel send described protection tunnel indication parameter;
S23, the each node in described main tunnel is set up corresponding protection according to described protection tunnel indication parameterTunnel.
The LSP creation method that the embodiment of the present invention provides, tunnel first node can receive the LSP from PCEInitial message, creates main tunnel and to described main tunnel according to the main tunnel information in LSP initial messageIn other each nodes send the protection tunnel indication parameter carrying in LSP initial messages, thereby make main tunnelEach node in road can be set up corresponding protection tunnel according to this protection tunnel indication parameter, has effectively improvedThe stability of inter-node communication.
It should be noted that, in each node in main tunnel, be all provided with PCC (PathComputationCustomer, calculates road client), can pass through PCEP (PCEprotocol, PCE agreement) to PCERoad request message is calculated in transmission, reception PCE calculates Suan road result, and initiates RSVP according to calculating road resultSignaling procedure carries out route. In communication nature between each node and PCE, be the PCC in each nodeAnd communicating by letter between PCE.
Optionally, in step S21, the LSP initial message from PCE that tunnel host node receivesCan be PCInitiate message. Because data in PCInitiate message are all with TLV (TYPELENGTHVALUE, type, length, value) form exist, therefore, the guarantor in the present embodimentProtect tunnel indication parameter and also will meet such TLV form. Wherein, exist to one of type assignmentThe value not also being defined in PCInitiate message, as make TYPE=22, length value represents this TLV formThe byte number that protection tunnel indication parameter occupies altogether, as LENGTH=4, VALUE can recordThe particular content of protection tunnel indication parameter. In one embodiment of the invention, VALUE can representBecome the Flag of 32, wherein each may be used to indicate a kind of protection tunnel type. For example,Can make wherein a certain position represent the quick heavy-route of DETOUR, in the time that this position is set to 1, represent main tunnelIn the quick heavy-route protection that need to set up DETOUR mode of each node, in the time of this quilt clear 0, tableShow that the each node in main tunnel does not need to set up the quick heavy-route protection of DETOUR mode. FACILITYFast the protection tunnel-like of the other types such as heavy-route seemingly, explanation no longer one by one herein. As this flag of 32All, by clear 0 o'clock, represent that the each node in main tunnel is protected tunnel without setting up.
In step S22, first tunnel first node creates according to the main tunnel information in LSP initial messageMain tunnel also sends to the each node in described main tunnel the protection tunnel carrying in LSP initial message and refers toShow parameter. Optionally, this process can realize by RSVP signaling. That is to say tunnel first nodeCan initiate RSVP signaling according to LSP initial message and create corresponding main tunnel, and at RSVPEach node in main tunnel in signaling, carries protection tunnel indication parameter, so that can know whether it needsSet up protection tunnel and set up the protection tunnel of what type.
Particularly, in step S23, the each node in main tunnel is according to described protection tunnel indication parameterSetting up corresponding protection tunnel can comprise:
Each node in described main tunnel according to described protection tunnel indication parameter to described calculation circuit component PCESend protection tunnel calculation road request;
Each node in described main tunnel receives protection tunnel information the root from described calculation circuit component PCESet up corresponding protection tunnel according to described protection tunnel information.
That is to say, when each node in main tunnel is known the protection tunnel indication parameter of its correspondence, onlyCan know and whether need separately to set up protection tunnel, or set up the protection tunnel of what type, but protection tunnelThe Path selection that road is concrete and foundation are but to send protection tunnel by each node in main tunnel to PCECalculation road request message starts. Optionally, in the request message of protection calculation road, tunnel, can carry various calculationsRoad constraint, so that PCE calculates corresponding protection tunnel according to these constraints. PCE can be further by meterGood protection tunnel information sends to corresponding node, and each node can be according to this protection tunnel letterBreath is set up corresponding protection tunnel.
Below by specific embodiment, LSP creation method provided by the invention is elaborated. As figureShown in 3, in the present embodiment, PCE will set up a tunnel according to demand between node A and node D,And calculate path A-B-D, wherein A is tunnel first node. Upper layer application is wished this between AD simultaneouslyTunnel has DETOUR mode FRR protection.
101.PCE sends PCInitiate message to the PCC that resides in A node, carries tunnel node end to endWith information such as paths. In LSP object, add FRR attribute TLV simultaneously. The data structure of TLV is as figureShown in 4, wherein the D position in TLV is arranged to 1 expression and is required DETOUR protection.
The PCInitiate message that 102.A node is received according to PCC, initiates RSVP signaling and creates a warpCross the path of ABD. A node is found to require LSP to have DETOUR protection in FRR attribute TLV,Therefore in RSVP signaling, carry DETOUR protection relevant information.
103.B node is built up behind main tunnel in RSVP signaling, and discovery signaling request is set up DETOUR and protectedProtect tunnel, therefore B node is initiated protection tunnel Suan road request by local resident PCC to PCE,In this request, carry various calculations road constraints.
104.PCE node, according to the constraints of calculating in the request of road, calculates DETOUR protection tunnel warpCross BCD node, and result of calculation is returned to the resident PCC of B node.
105.B node, according to protection Suan road, tunnel result, adopts RSVP signaling to set up one through BCDThe Protection path of node. After protection tunnel establishes, at B node, main tunnel and protection tunnel are closedConnection. To work when FRR protection when abnormal occurs B node main path like this, guarantee flow switches fast,Effectively improve the stability of inter-node communication.
It should be noted that, A node finds that signaling information need to form DETOUR after establishing main tunnelWhen protection, can equally with B node protect calculation road, tunnel request message to attempt calculating protection road by transmissionFootpath. But because A node only has a path to B node, there is not protection tunnel, calculate road result and loseLose, therefore can not form DETOUR form D RR protection.
The example that has provided DETOUR protection herein, FACILITY mode FRR protection forms step baseThis is identical. Difference is to protect tunnel to create in advance, and in the time that main tunnel forms, protection node is foundTunnel needs FACILITY form D RR protection, directly in existing tunnel, searches one and can form protectionTunnel form FRR protection relation, if can not find, FRR protection forms unsuccessfully.
Accordingly, as shown in Figure 5, embodiments of the invention also provide the creation apparatus 3 of a kind of LSP, bagDraw together:
Transmitting element 30, for sending LSP initial message to tunnel first node, described LSP initializesIn message, carry main tunnel information and protection tunnel indication parameter, so that the each node in described main tunnel is knownDescribed protection tunnel indication parameter;
Determining unit 32, described calculation circuit component PCE according to the each node in described main tunnel to described protectionThe feedback of tunnel indication parameter, for each corresponding node is determined protection tunnel.
The creation apparatus 3 of the LSP that the embodiment of the present invention provides, when PCE wants initiatively between certain two nodeWhile setting up LSP (being tunnel), transmitting element 30 can send LSP initial message to tunnel first node,In this LSP initial message, carry main tunnel information and protection tunnel indication parameter, in main like this tunnelEach node can be known corresponding protection tunnel indication parameter and described protection tunnel indication parameter is made to phaseThe feedback of answering, thus make determining unit 32 be fed back to the definite corresponding protection of each corresponding node according to thisTunnel, has effectively improved the stability of inter-node communication.
Particularly, determining unit 32 can be specifically for:
Receive the protection tunnel calculation road request from the each node in described main tunnel;
Be described each node determination protection tunnel to each corresponding node according to the calculation road request of described protection tunnelThe protection tunnel information that transmission is determined.
Optionally, described protection tunnel indication parameter comprises protection tunnel type, described protection tunnel type bagDraw together the quick heavy-route of DETOUR or the quick heavy-route of FACILITY etc.
Accordingly, as shown in Figure 6, the embodiment of the present invention also provides a kind of establishment of label switching path LSPDevice 4, comprising:
Receiving element 40, for receiving from the LSP initial message of calculating circuit component PCE, described LSPIn initial message, carry main tunnel information and protection tunnel indication parameter;
Main tunnel creation unit 42, for the described LSP initial message receiving according to receiving element 40,Create main tunnel and the each node in described main tunnel sends described protection tunnel indication parameter;
Protection tunnel creation unit 44, for the described protection tunnel sending according to main tunnel creation unit 42Indication parameter is that described main tunnel nodes is set up corresponding protection tunnel.
The LSP creation apparatus 4 that the embodiment of the present invention provides, tunnel first node receiving element 40 can receiveFrom the LSP initial message of PCE, main tunnel creation unit 42 can be according in LSP initial messageMain tunnel information create main tunnel and send LSP to other the each nodes in described main tunnel and initialize and disappearThe protection tunnel indication parameter carrying in breath can be in main tunnel thereby make to protect tunnel creation unit 44Each node set up corresponding protection tunnel, effectively improved the stability of inter-node communication.
Optionally, main tunnel creation unit 42 can be specifically for initiating according to described LSP initial messageRSVP signaling creates main tunnel, carries described protection tunnel indication parameter in described RSVP signaling.
Optionally, protection tunnel creation unit 44 can be specifically for
Each node in main tunnel is sent out to described calculation circuit component PCE according to described protection tunnel indication parameterSend protection tunnel calculation road request;
Each node in described main tunnel is received from the protection tunnel information of described calculation circuit component PCE alsoSet up corresponding protection tunnel according to described protection tunnel information.
Although be example object, the preferred embodiments of the present invention are disclosed, those skilled in the art willRecognize that various improvement, increase and replacement are also possible, therefore, scope of the present invention should be not limited toState embodiment.
Claims (10)
1. a creation method for label switching path LSP, is characterized in that, comprising:
Calculate circuit component PCE and send LSP initial message, described LSP initial message to tunnel first nodeIn carry main tunnel information and protection tunnel indication parameter so that described in the each node in described main tunnel knowsProtection tunnel indication parameter;
Described calculation circuit component PCE according to the each node in described main tunnel to described protection tunnel indication parameterFeedback, be each corresponding node determine protection tunnel.
2. method according to claim 1, is characterized in that, described calculation circuit component PCE is according to instituteStating each node in main tunnel feedback to described protection tunnel indication parameter, is that each corresponding node is determined protectionTunnel specifically comprises:
Described calculation circuit component PCE receives the protection tunnel calculation road request from the each node in described main tunnel;
Described calculation circuit component PCE is described each node determination protection tunnel according to the calculation road request of described protection tunnelRoad also sends the protection tunnel information of determining to each corresponding node.
3. method according to claim 1, is characterized in that, described protection tunnel indication parameter bagDraw together protection tunnel type.
4. method according to claim 3, is characterized in that, described protection tunnel type comprisesThe quick heavy-route of DETOUR or the quick heavy-route of FACILITY.
5. a creation method for label switching path LSP, is characterized in that, comprising:
Tunnel first node receives from the LSP initial message of calculating circuit component PCE, and described LSP initializesIn message, carry main tunnel information and protection tunnel indication parameter;
Described tunnel first node creates main tunnel according to described LSP initial message, and in described main tunnelOther each nodes send described protection tunnel indication parameter;
Each node in described main tunnel is set up corresponding protection tunnel according to described protection tunnel indication parameter.
6. method according to claim 5, is characterized in that, described tunnel first node according to described inLSP initial message creates main tunnel, and other each nodes in described main tunnel send described protection tunnelRoad indication parameter specifically comprises:
Described tunnel first node is initiated RSVP RSVP signaling wound according to described LSP initial messageBuild main tunnel, in described RSVP RSVP signaling, carry described protection tunnel indication parameter.
7. method according to claim 5, is characterized in that, the each node root in described main tunnelSetting up corresponding protection tunnel according to described protection tunnel indication parameter specifically comprises:
Each node in described main tunnel according to described protection tunnel indication parameter to described calculation circuit component PCESend protection tunnel calculation road request;
Each node in described main tunnel receives protection tunnel information the root from described calculation circuit component PCESet up corresponding protection tunnel according to described protection tunnel information.
8. a creation apparatus for label switching path LSP, is characterized in that, comprising:
Transmitting element, for sending LSP initial message to tunnel first node, initiate in message on described calculation roadCarry main tunnel information and protection tunnel indication parameter, so that the first node in described main tunnel is known described guarantorProtect tunnel indication parameter;
Determining unit, described calculation circuit component PCE according to the each node in described main tunnel to described protection tunnelThe feedback of road indication parameter, for each corresponding node is determined protection tunnel.
9. device according to claim 8, is characterized in that, described determining unit specifically for:
Receive the protection tunnel calculation road request from the each node in described main tunnel;
Be described each node determination protection tunnel to each corresponding node according to the calculation road request of described protection tunnelThe protection tunnel information that transmission is determined.
10. a creation apparatus for label switching path LSP, is characterized in that, comprising:
Receiving element, for receiving from the LSP initial message of calculating circuit component PCE, at the beginning of described LSPIn beginningization message, carry main tunnel information and protection tunnel indication parameter;
Main tunnel creation unit, for the described LSP initial message receiving according to described receiving element, woundBuild main tunnel and other the each nodes in described main tunnel send described protection tunnel indication parameter;
Protection tunnel creation unit, refers to for the described protection tunnel sending according to described main tunnel creation unitShow that parameter is that each node in described main tunnel is set up corresponding protection tunnel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557169.7A CN105591861A (en) | 2014-10-20 | 2014-10-20 | Method and device for creating label switch path (LSP) |
| PCT/CN2015/072328 WO2015184848A1 (en) | 2014-10-20 | 2015-02-05 | Method and apparatus for creating label switched path (lsp) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557169.7A CN105591861A (en) | 2014-10-20 | 2014-10-20 | Method and device for creating label switch path (LSP) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105591861A true CN105591861A (en) | 2016-05-18 |
Family
ID=54766078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410557169.7A Pending CN105591861A (en) | 2014-10-20 | 2014-10-20 | Method and device for creating label switch path (LSP) |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105591861A (en) |
| WO (1) | WO2015184848A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018137372A1 (en) * | 2017-01-27 | 2018-08-02 | Huawei Technologies Co., Ltd. | Method and apparatus for path computation |
| CN107645447B (en) * | 2016-07-21 | 2022-04-22 | 中兴通讯股份有限公司 | Label Switching Path (LSP) creation method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030117950A1 (en) * | 2001-12-26 | 2003-06-26 | Huang Gail G | Link redial for mesh protection |
| CN101369958A (en) * | 2007-08-15 | 2009-02-18 | 华为技术有限公司 | Fast rerouting method and label exchange router |
| CN102136994A (en) * | 2010-08-02 | 2011-07-27 | 华为技术有限公司 | Label switched path creation method, system and node equipment |
| CN103067275A (en) * | 2013-01-09 | 2013-04-24 | 中兴通讯股份有限公司 | Establishment method and establishment system of label switching path |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2676412B1 (en) * | 2011-03-09 | 2016-06-08 | Huawei Technologies Co., Ltd. | Signaling extension for a label switched path over a composite link |
| CN103248572A (en) * | 2012-02-13 | 2013-08-14 | 上海贝尔股份有限公司 | Method and device for establishing virtual link based on access infrastructure network |
-
2014
- 2014-10-20 CN CN201410557169.7A patent/CN105591861A/en active Pending
-
2015
- 2015-02-05 WO PCT/CN2015/072328 patent/WO2015184848A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030117950A1 (en) * | 2001-12-26 | 2003-06-26 | Huang Gail G | Link redial for mesh protection |
| CN101369958A (en) * | 2007-08-15 | 2009-02-18 | 华为技术有限公司 | Fast rerouting method and label exchange router |
| CN102136994A (en) * | 2010-08-02 | 2011-07-27 | 华为技术有限公司 | Label switched path creation method, system and node equipment |
| CN103067275A (en) * | 2013-01-09 | 2013-04-24 | 中兴通讯股份有限公司 | Establishment method and establishment system of label switching path |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645447B (en) * | 2016-07-21 | 2022-04-22 | 中兴通讯股份有限公司 | Label Switching Path (LSP) creation method and device |
| WO2018137372A1 (en) * | 2017-01-27 | 2018-08-02 | Huawei Technologies Co., Ltd. | Method and apparatus for path computation |
| US11038792B2 (en) | 2017-01-27 | 2021-06-15 | Huawei Technologies Co., Ltd. | Method and apparatus for path computation |
| CN113162854A (en) * | 2017-01-27 | 2021-07-23 | 华为技术有限公司 | Path calculation method and device |
| CN113162854B (en) * | 2017-01-27 | 2022-11-15 | 华为技术有限公司 | Path calculation method and device |
| US11588725B2 (en) | 2017-01-27 | 2023-02-21 | Huawei Technologies Co., Ltd. | Method and apparatus for path computation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015184848A1 (en) | 2015-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI472191B (en) | Disjoint path computation algorithm | |
| JP5426770B2 (en) | Method and apparatus in a telecommunications network | |
| CN104283781B (en) | A kind of path calculation method and device | |
| EP3440807B1 (en) | Label database synchronization in a packet switched communication network | |
| US11177976B2 (en) | Method and device for automatically implementing IOAM encapsulation and storage medium | |
| US20140143409A1 (en) | Bandwidth On-Demand Services in Multiple Layer Networks | |
| US11038792B2 (en) | Method and apparatus for path computation | |
| US10666562B2 (en) | Network path computation method, apparatus, and system | |
| JP4364027B2 (en) | Backup path setting method and apparatus | |
| JP2003273904A (en) | Route control method and route controller | |
| CN105306245A (en) | Traffic engineering link information maintenance method and traffic engineering link information maintenance device | |
| CN105591861A (en) | Method and device for creating label switch path (LSP) | |
| US8837475B2 (en) | Method for controlling area boundary, method and system for establishing connection in multilayer network | |
| CN104253750A (en) | Path obtaining method and system, path computation element, and path computation client | |
| CN102055662A (en) | Method and device for determining preset routing | |
| US9998807B2 (en) | Method and apparatus for establishing trail network | |
| CN107347034B (en) | Link information processing method, device and system | |
| CN113872860B (en) | Path switching method and device | |
| WO2018219298A1 (en) | Method and device for processing failure of path computation requested by path computation client (pcc) | |
| WO2018113793A1 (en) | Path computation method and apparatus, pcc, pce and path computation system | |
| EP4178295A1 (en) | Service processing method and network device | |
| CN104539623A (en) | Achieving system and method for IGP multi-process CSPE in hybrid network | |
| WO2014094449A1 (en) | Secure path cross-domain establishment method and system | |
| WO2018205884A1 (en) | Signalling configuration method and apparatus | |
| KR100924108B1 (en) | Link State Update System and Control Method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160518 |
|
| WD01 | Invention patent application deemed withdrawn after publication |