CN102724599A - Bandwidth adjustment processing method for control platform - Google Patents
Bandwidth adjustment processing method for control platform Download PDFInfo
- Publication number
- CN102724599A CN102724599A CN2011100789771A CN201110078977A CN102724599A CN 102724599 A CN102724599 A CN 102724599A CN 2011100789771 A CN2011100789771 A CN 2011100789771A CN 201110078977 A CN201110078977 A CN 201110078977A CN 102724599 A CN102724599 A CN 102724599A
- Authority
- CN
- China
- Prior art keywords
- node
- lsp
- bandwidth
- bandwidth adjustment
- message
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
- H04L47/762—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the network
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a bandwidth adjustment processing method for a control platform, and the success rate of bandwidth adjustment can be raised. The method comprises: a first node of a Label Switch Path (LSP) carries a bandwidth and a timeslot number needed to be adjusted and a re-signaling identifier in a signaling message; after receiving the signaling message carrying the re-signaling identifier, the nodes on the LSP except the first node determine if the adjusted bandwidth does not match with the adjusted timeslot, then send a bandwidth adjustment failure message to the first node of the LSP, and the bandwidth adjustment failure message carries timeslot number information; after receiving the bandwidth adjustment failure message, the first node carries out bandwidth adjustment again according to the timeslot number information or cancels a bandwidth adjustment operation. According to the invention, in the condition that the bandwidth adjustment of an ODUflex (GFP) link fails, by negotiating the timeslot number information by the control platform, the success of the bandwidth adjustment is ensured, and the success rate of the bandwidth adjustment is raised without influencing services of users.
Description
Technical field
The present invention relates to moving communicating field, be specifically related in OTN (Optical Transport Network, optical transport network), the processing method of the harmless adjustment of control plane bandwidth.
Background technology
In order to realize the carrying of OTN full-service, ITU-T has proposed to transmit flexibly container ODUflex (flexible rate light digital units) notion, makes OTN can carry the full-service that comprises IP efficiently, and improves the line bandwidth utilance to greatest extent.ITU-T has defined the ODUflex of two kinds of forms at present: a kind of professional ODUflex of constant bit-rate (Constant Bit Rate is called for short CBR) that is based on, and speed can be arbitrarily, the CBR business is encapsulated into this ODUflex through synchronization map; Another kind is based on the ODUflex of Packet Service; The speed of this ODUflex is HO ODU (High OrderOptical Data Unit; High-order light data cell) N of time slot doubly; Bag is professional to be encapsulated into ODUflex through GFP (GenericFraming Procedure, Generic Framing Procedure), and note is made ODUflex (GFP).
For ODUflex (GFP), because the bandwidth of grouping client signal is can be time dependent, institute thinks that ODUflex (GFP) distribution fixed-bandwidth is unfavorable for effective utilization of bandwidth resources.If ODUflex (GFP) can support dynamic bandwidth adjustment, so not only can satisfy the various bandwidth requirement of grouping client signal better, and can improve bandwidth availability ratio and conserve bandwidth resource effectively.For this reason, ODUflex (GFP) just need possess the ability of nondestructively adjusting bandwidth.ODUflex (GFP) is harmless, and adjustment means that ODUflex (GFP) need accomplish the adjustment of bandwidth under the situation of dynamically and not interrupting existing business.For this reason, ITU-T has proposed the suggestion G.HAO (Hitless Adjustment ofODUflex (GFP)) about harmless bandwidth adjustment, connects the harmless bandwidth that adjustment (LCR) and bandwidth adjustment (BWR) two stages accomplish ODUflex through link and adjusts.
The control plane of OTN network adopts GMPL S (Generalized Multi-Protocol LabelSwitching) protocol stack, and wherein signaling adopts RSVP-TE (Resource ReserVationProtocol-Traffic Engineering) agreement.For ODUflex connection end to end, the situation of failure in its bandwidth adjustment process, may occur adjusting, but, also not have control corresponding plane treatment mechanism at present for the adjustment of failure.
Summary of the invention
The technical problem that the present invention will solve provides a kind of control plane bandwidth adjustment processing method, can improve the success rate of bandwidth adjustment.
For solving the problems of the technologies described above, the invention provides a kind of control plane bandwidth adjustment processing method, comprising:
The first node of label switched path (LSP) carries bandwidth and the timeslot number that needs adjustment in signaling message, and heavy signaling sign;
After the node except that first node on the said LSP receives the signaling message that carries heavy signaling sign; If judging adjusted bandwidth and adjusted time slot does not match; Then the first node to said LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
Said first node carries out the bandwidth adjustment according to said timeslot number information after receiving said bandwidth adjustment failed message again, or the cancellation bandwidth adjustment operations.
Further, the node except that first node on the said LSP is the Ingress node of the ODU network of said LSP process.
Further, said timeslot number information is the timeslot number that the node place ODU network except that first node on the said LSP need increase or reduce.
Further, the first node of LSP is provided with the retry qualifications in advance; The first node of said LSP if the retry qualifications is satisfied in judgement, then carries out the bandwidth adjustment according to said timeslot number information again after receiving said bandwidth adjustment failed message.
Further, said retry qualifications is number of retries or retry time.
Further, said first node places said heavy signaling sign the LSP attributes object of said signaling message.
Further, the node except that first node on the said LSP adopts following mode in said bandwidth adjustment failed message, to carry timeslot number information: place the TLV of error message object (ERROR_SPEC) to carry said timeslot number information.
Further, said node also carries the error message that is used to represent error reason in the bandwidth adjustment failed message of the first node transmission of LSP.
Further, said error message places the ERROR_SPEC object to carry.
For solving the problems of the technologies described above, the present invention also provides a kind of control plane bandwidth adjustment treatment system, comprising:
First installs, and is positioned at the first node of LSP, and it is used for carrying at signaling message the bandwidth and the timeslot number of needs adjustment, and heavy signaling sign;
Second device; Be positioned at the node except that first node on the LSP; It is used for after receiving the signaling message that carries heavy signaling sign; Do not match if judge adjusted bandwidth and adjusted time slot, then the first node to said LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
The 3rd installs, and is positioned at the first node of said LSP, and it is used for after receiving said bandwidth adjustment failed message, carrying out the bandwidth adjustment again according to said timeslot number information, or the cancellation bandwidth adjustment operations.
The embodiment of the invention is through expansion control plane signaling; Control plane is connected at ODUflex (GFP) under the situation of bandwidth adjustment failure,, guarantee the success of bandwidth adjustment as far as possible through the negotiation of timeslot number information; Thereby improve the success rate of bandwidth adjustment, and can not influence client's business.
Description of drawings
Fig. 1 is the signaling process figure that bandwidth is transferred;
Fig. 2 is the schematic network structure of a kind of G.HAO of support.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Embodiment 1
The present embodiment method is applicable to the process when LSP (Label Switched Path, label switched path) goes up node execution bandwidth adjustment operations:
The first node of LSP carries bandwidth and the timeslot number that needs adjustment in signaling message, and heavy signaling sign; Other nodes that said heavy signaling sign is used to indicate said LSP to go up except that first node are notified first node with timeslot number information when judging that adjusted bandwidth and adjusted time slot do not match;
After the last node except that first node of LSP receives the signaling message that carries heavy signaling sign; If judging adjusted bandwidth and adjusted time slot does not match; Then the first node to LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
Said first node carries out the bandwidth adjustment according to said timeslot number information after receiving said bandwidth adjustment failed message again, or the cancellation bandwidth adjustment operations.
The node except that first node on the above-mentioned LSP that judges is generally the Ingress node of the ODU network of LSP process, because Ingress node can be understood situation such as its time slot that belongs to the ODU network and bandwidth usually.
The timeslot number information that node carries in bandwidth adjustment failed message is preferably the timeslot number that this node place network need increase or reduce.In addition, also can directly carry current time slots number and the timeslot number that need to increase or reduce with, but this application only limits to the situation of LSP through two ODU networks.Preferably, except carrying timeslot number information, node can also carry the information such as reason of adjustment failure.
The first node of LSP can be provided with the retry qualifications in advance, for example can be number of retries or retry time (can come timing through timer), and the first node of LSP is after receiving bandwidth adjustment failed message; Judge whether to satisfy the retry qualifications earlier, if satisfy for example no show number of retries or no show retry time; Then carry out the bandwidth adjustment again according to this timeslot number information; If do not satisfy, for example arrive number of retries or arrived the retry time, then cancel bandwidth adjustment operations.In other embodiments, LSP also can not be provided with the retry qualifications, only gives tacit consent to that retry does not once perhaps carry out retry, directly cancels bandwidth adjustment operations.
For compatible with prior art; First node is in carrying out the bandwidth adjustment operations process; Carry a heavy signaling sign in ODUflex (GFP) the connection signaling of promptly sending to downstream node, be used to indicate downstream node when judging that adjusted bandwidth and adjusted time slot do not match, to notify first node timeslot number information.Can expand as follows to accomplish this function existing RSVP-TE signaling: LSP_ATTRIBUTES (LSP attribute) object is expanded, for example with the bit of the 5th bit definitions among the LSP AttributesTLV (Type Lenth Value) of LSP_ATTRIBUTES object for the heavy signaling sign of expression.When this position was put 1, expression need report timeslot number information to first node when intermediate node is adjusted bandwidth and adjusted time slot when not matching running into that bandwidth adjustment fails.
Through existing RSVP-TE signaling being expanded as follows to realize that intermediate node reports the function of timeslot number information:
(ERROR_SPEC) expands to the error message object, defines a new timeslot number TLV, as carrying timeslot number information.When judging the adjustment failure, intermediate node uses this TLV to report the timeslot number that needs to first node.After first node receives timeslot number information, initiate to adjust signaling again by the timeslot number of indicating among this TLV.
Consider autgmentability from now on, can also the following error message of redetermination in the ERROR_SPEC object: error code (Error Code) and improper value (Error Value) be used to represent error reason.For example:
Error Code=50 representes to connect the adjustment failure;
Error Value=1 representes that ODUflex connects time slot adjustment failure.
Above numerical value is merely a kind of and gives an example, and conduct is not to qualification of the present invention.
In the present embodiment, realize that system for carrying out said process comprises:
First installs, and is positioned at the first node of LSP, and it is used for carrying at signaling message the bandwidth and the timeslot number of needs adjustment, and heavy signaling sign;
Second device; Be positioned at the node except that first node on the LSP; It is used for after receiving the signaling message that carries heavy signaling sign; Do not match if judge adjusted bandwidth and adjusted time slot, then the first node to said LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
The 3rd installs, and is positioned at the first node of said LSP, and it is used for after receiving said bandwidth adjustment failed message, carrying out the bandwidth adjustment again according to said timeslot number information, or the cancellation bandwidth adjustment operations.
Preferably, this first device adopts following mode to carry heavy signaling sign: the LSP attributes object that said heavy signaling sign is placed said signaling message.
Preferably, the node except that first node on second LSP that be positioned at of device is: the Ingress node of the ODU network of said LSP process.Said timeslot number information is the timeslot number that the node place ODU network except that first node on the said LSP need increase or reduce.
Preferably, this second device adopts following mode in said bandwidth adjustment failed message, to carry timeslot number information: place the TLV of error message object (ERROR_SPEC) to carry said timeslot number message.
Preferably, this second device also is used in the bandwidth adjustment failed message that the first node of said LSP sends and carries the error message that is used to represent error reason.Can adopt following mode to carry said error message: to place the ERROR_SPEC object to carry said error message.
Preferably, the 3rd device also is used for being provided with in advance the retry qualifications; And be used for after receiving said bandwidth adjustment failed message,, then carrying out the bandwidth adjustment again according to said timeslot number information if the retry qualifications is satisfied in judgement.Said retry qualifications is number of retries or retry time.
Embodiment 2
Present embodiment is that number of retries is that example describes with the retry qualifications.As shown in Figure 1, the operation of the last professional first node of LSP is as shown in Figure 1, may further comprise the steps:
This request is triggered by management plane.
Whether step 202 judges current retry count less than maximum reattempt times, if, execution in step 203, otherwise execution in step 212;
The timeslot number here possibly be the timeslot number that first node initial setting up need be adjusted, and also possibly be after first node receives the timeslot number information of intermediate node feedback, the timeslot number that resets.
When step 204, certain intermediate node were received bandwidth adjustment signaling, whether the parameter in the inspection signaling message legal (existing validity checking), if legal, if execution in step 204 illegal, finishes;
Step 207 after professional first node receives PathErr message, adds 1 with current retry count;
Step 210 is carried out bandwidth adjustment, and bandwidth is adjusted signaling sends to downstream node, treat that all downstream node bandwidth adjusts successfully after, the flow process end;
If this intermediate node of judging is the Ingress node of certain ODU network; Then it is after judging that adjusted time slot meets the demands; The downstream node of controlling in this ODU network is adjusted bandwidth according to signaling request, and this bandwidth adjustment signaling is forwarded to the Ingress node of next ODU network.
Embodiment 3
Processing when between node A and node Z, failure occurring in the increase bandwidth process in conjunction with Fig. 1, Fig. 2 explanation.As shown in Figure 2, suppose to have had a bandwidth between A, the Z the unidirectional connection of ODUflex that is 35G to be designated as Con1, this is connected and has all taken 27 time slots in ODU1 network and the ODU2 network.Owing to business demand, need increase the bandwidth (bandwidth after promptly increasing is 37.5G) of 2.5G more now; And hypothesis at 3 time slots of ODU2 network increase, just can satisfy the requirement of G.HAO agreement at 2 time slots of ODU1 network increase.The processing procedure of chain of command may further comprise the steps:
Step 301, node A receives the request that connects increase 2.5G bandwidth into Con1;
In the present embodiment, suppose that the preset adjustment number of retries of node A is 3 times.
Step 302, the PATH message in the control plane structure RSVP-TE signaling of node A sends to Node B with PATH message;
Node A is provided with corresponding object by following requirement:
The bit (the 5th bit) of the heavy signaling sign of the LSP Attributes TLV in the LSP_ATTRIBUTES object is put 1; The value that service bandwidth field among the Traffic Parameters (service parameter) in SENDER_TSPEC (the sender's data streaming service characteristic) object is filled out is made as 37.5G; The NMC field is made as 29.
After step 303, the control plane of Node B are received above-mentioned PATH message, parse NMC field and service bandwidth field, and learn after comparing with current business time-slot 27 and to need to increase by 2 time interval resources;
Step 304, Node B are transmitted above-mentioned PATH message and are given node C; Node C further is transmitted to node D;
Step 305; After the control plane of node D was received above-mentioned PATH message, after parsing NMC field and service bandwidth field, learning to increase the 2.5G bandwidth for connecting; But contradict with the value 29 of NMC field, because the bandwidth of 2.5G needs 3 time interval resources in the ODU3 network;
Step 306, node D is because of above-mentioned contradiction, connects the failure of adjustment signaling, reports bandwidth adjustment failure information through PathErr message to node A, and wherein PathErr message is by following requirement setting: Error Code is made as 50; Error Value is made as 1; Value among the timeslot number TLV is made as 30.
Step 307, after node A receives the PathErr message of node D, the inspection number of retries.Because number of retries is less than 3, resend adjustment signaling PATH message, this at this moment node A the NMC field is made as 30.
Through behind the retry, downstream node completes successfully and connects the bandwidth increase.
Embodiment 4
Operation when between node A and node Z, failure occurring in the minimizing bandwidth process in conjunction with Fig. 1, Fig. 2 explanation.As shown in Figure 2, suppose to have had a bandwidth between A, the Z ODUflex that is 37.5G to connect and be designated as Con2.Owing to business demand, need reduce the bandwidth of 35G more now; And this connection of hypothesis originally all took 30 time slots in OUD1 network and ODU2 network.The processing procedure of chain of command may further comprise the steps:
Step 401, node A receives the request that connects minimizing 35G bandwidth into Con1;
In the present embodiment, suppose that the preset adjustment number of retries of node A is 2 times.
Step 402, the PATH message in the control plane structure RSVP-TE signaling of node A sends to Node B with PATH message;
Node A is provided with corresponding object by following requirement:
The heavy signaling bit position of LSP Attributes TLV in the LSP_ATTRIBUTES object (the 5th bit) puts 1; The value that service bandwidth field among the Traffic Parameters in the SENDER_TSPEC object is filled out is made as 2.5G; The NMC field is made as 3.
After step 403, the control plane of Node B are received above-mentioned PATH message, parse NMC field and service bandwidth field, and learn after comparing with previous business time-slot 30 and to need to reduce 27 time interval resources;
Step 404, Node B are transmitted above-mentioned PATH message and are given node C; Node C further is transmitted to node D;
Step 405; After the control plane of node D is received above-mentioned PATH message, after parsing NMC field and service bandwidth field, learn and to reduce the 35G bandwidth for connecting; But contradict with the value 3 of NMC field, because the bandwidth of 35G needs 28 time interval resources in the ODU3 network;
Step 406, node D is because of above-mentioned contradiction, connects the failure of adjustment signaling, reports bandwidth adjustment failure information through PathErr message to node A, and wherein PathErr message is by following requirement setting:
Error Code is made as 50; Error Value is made as 1; Value among the timeslot number TLV is made as 2.
Step 407, after node A receives the PathErr message of node D, the inspection number of retries.Because number of retries, resends adjustment signaling PATH message less than 2, this moment, node A was made as 2 with the NMC field.
Through behind the retry, it is few that downstream node completes successfully the connecting band reductions.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (18)
1. a control plane bandwidth is adjusted processing method, comprising:
The first node of label switched path (LSP) carries bandwidth and the timeslot number that needs adjustment in signaling message, and heavy signaling sign;
After the node except that first node on the said LSP receives the signaling message that carries heavy signaling sign; If judging adjusted bandwidth and adjusted time slot does not match; Then the first node to said LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
Said first node carries out the bandwidth adjustment according to said timeslot number information after receiving said bandwidth adjustment failed message again, or the cancellation bandwidth adjustment operations.
2. the method for claim 1 is characterized in that:
The node except that first node on the said LSP is the Ingress node of the ODU network of said LSP process.
3. according to claim 1 or claim 2 method is characterized in that:
Said timeslot number information is the timeslot number that the node place ODU network except that first node on the said LSP need increase or reduce.
4. the method for claim 1 is characterized in that:
The first node of LSP is provided with the retry qualifications in advance;
The first node of said LSP if the retry qualifications is satisfied in judgement, then carries out the bandwidth adjustment according to said timeslot number information again after receiving said bandwidth adjustment failed message.
5. method as claimed in claim 4 is characterized in that:
Said retry qualifications is number of retries or retry time.
6. the method for claim 1 is characterized in that:
Said first node places said heavy signaling sign the LSP attributes object of said signaling message.
7. the method for claim 1 is characterized in that:
The node except that first node on the said LSP adopts following mode in said bandwidth adjustment failed message, to carry timeslot number information: place the TLV of error message object (ERROR SPEC) to carry said timeslot number information.
8. like claim 1 or 6 or 7 described methods, it is characterized in that:
Said node also carries the error message that is used to represent error reason in the bandwidth adjustment failed message of the first node transmission of LSP.
9. method as claimed in claim 8 is characterized in that:
Said error message places ERROR SPEC object to carry.
10. a control plane bandwidth is adjusted treatment system, comprising:
First installs, and is positioned at the first node of LSP, and it is used for carrying at signaling message the bandwidth and the timeslot number of needs adjustment, and heavy signaling sign;
Second device; Be positioned at the node except that first node on the LSP; It is used for after receiving the signaling message that carries heavy signaling sign; Do not match if judge adjusted bandwidth and adjusted time slot, then the first node to said LSP sends bandwidth adjustment failed message, and in said bandwidth adjustment failed message, carries timeslot number information;
The 3rd installs, and is positioned at the first node of said LSP, and it is used for after receiving said bandwidth adjustment failed message, carrying out the bandwidth adjustment again according to said timeslot number information, or the cancellation bandwidth adjustment operations.
11. system as claimed in claim 10 is characterized in that:
The node except that first node on the LSP that said second device is positioned at is: the Ingress node of the ODU network of said LSP process.
12., it is characterized in that like claim 10 or 11 described systems:
Said timeslot number information is the timeslot number that the node place ODU network except that first node on the said LSP need increase or reduce.
13. system as claimed in claim 10 is characterized in that:
Said the 3rd device also is used for being provided with in advance the retry qualifications; And be used for after receiving said bandwidth adjustment failed message,, then carrying out the bandwidth adjustment again according to said timeslot number information if the retry qualifications is satisfied in judgement.
14. system as claimed in claim 13 is characterized in that:
Said retry qualifications is number of retries or retry time.
15. system as claimed in claim 10 is characterized in that:
Said first device adopts following mode to carry heavy signaling sign: the LSP attributes object that said heavy signaling sign is placed said signaling message.
16. system as claimed in claim 10 is characterized in that:
Said second device adopts following mode in said bandwidth adjustment failed message, to carry timeslot number information: place the TLV of error message object (ERROR SPEC) to carry said timeslot number message.
17., it is characterized in that like claim 10 or 15 or 16 described systems:
Said second device also is used for carrying the error message that is used to represent error reason at the bandwidth adjustment failed message that sends to the first node of said LSP.
18. system as claimed in claim 17 is characterized in that:
Said second device adopts following mode to carry said error message: place ERROR SPEC object to carry said error message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110078977.1A CN102724599B (en) | 2011-03-30 | 2011-03-30 | A kind of control plane Bandwidth adjustment processing method |
| PCT/CN2012/072946 WO2012130106A1 (en) | 2011-03-30 | 2012-03-23 | Bandwidth adjustment processing method and system for control platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110078977.1A CN102724599B (en) | 2011-03-30 | 2011-03-30 | A kind of control plane Bandwidth adjustment processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102724599A true CN102724599A (en) | 2012-10-10 |
| CN102724599B CN102724599B (en) | 2016-08-24 |
Family
ID=46929454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110078977.1A Expired - Fee Related CN102724599B (en) | 2011-03-30 | 2011-03-30 | A kind of control plane Bandwidth adjustment processing method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102724599B (en) |
| WO (1) | WO2012130106A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227371A (en) * | 2015-10-20 | 2016-01-06 | 烽火通信科技股份有限公司 | A kind of bandwidth chahnel labeling method based on ODUflex |
| CN107566273A (en) * | 2016-06-30 | 2018-01-09 | 瞻博网络公司 | Auto-bandwidth adjustable strategies are generated according to label switched path |
| CN108462638A (en) * | 2016-12-12 | 2018-08-28 | 中国电信股份有限公司 | The determination method and system of business routing |
| WO2023125903A1 (en) * | 2021-12-31 | 2023-07-06 | 中国移动通信有限公司研究院 | Channel resource adjustment method and apparatus, and communication device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9344210B2 (en) | 2014-02-10 | 2016-05-17 | Ciena Corporation | OTN rate adjustment systems and methods for control plane restoration, congestion control, and network utilization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729370A (en) * | 2008-10-31 | 2010-06-09 | 华为技术有限公司 | Method, device and system for adjusting bandwidth occupied by service |
| WO2011029347A1 (en) * | 2009-09-08 | 2011-03-17 | 华为技术有限公司 | Method and apparatus for implementing link information advertisement of node |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5229712B2 (en) * | 2007-07-11 | 2013-07-03 | 日本電気株式会社 | Time slot selection device, optical transmission device, optical transmission network system, and time slot selection method |
| CN102143052B (en) * | 2010-11-08 | 2013-10-09 | 华为技术有限公司 | Method, equipment and system for lossless bandwidth |
-
2011
- 2011-03-30 CN CN201110078977.1A patent/CN102724599B/en not_active Expired - Fee Related
-
2012
- 2012-03-23 WO PCT/CN2012/072946 patent/WO2012130106A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729370A (en) * | 2008-10-31 | 2010-06-09 | 华为技术有限公司 | Method, device and system for adjusting bandwidth occupied by service |
| WO2011029347A1 (en) * | 2009-09-08 | 2011-03-17 | 华为技术有限公司 | Method and apparatus for implementing link information advertisement of node |
Non-Patent Citations (2)
| Title |
|---|
| CHAO FANG, XUE CHEN: "A Novel Scheme for Realization of Flexible ODU Hitless Resizing", 《IEEE》 * |
| HUAWEI;ERICSSON等: "Technology Agnostic OSPF Traffic Engineering Extensions for Generalized MPLS (GMPLS)", 《IETF》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105227371A (en) * | 2015-10-20 | 2016-01-06 | 烽火通信科技股份有限公司 | A kind of bandwidth chahnel labeling method based on ODUflex |
| CN105227371B (en) * | 2015-10-20 | 2018-04-20 | 烽火通信科技股份有限公司 | A kind of bandwidth chahnel method of adjustment based on ODUflex |
| CN107566273A (en) * | 2016-06-30 | 2018-01-09 | 瞻博网络公司 | Auto-bandwidth adjustable strategies are generated according to label switched path |
| US10581752B2 (en) | 2016-06-30 | 2020-03-03 | Juniper Networks, Inc. | Generating automatic bandwidth adjustment policies per label-switched path |
| CN107566273B (en) * | 2016-06-30 | 2020-08-18 | 瞻博网络公司 | Generating an automatic bandwidth adjustment policy from a label switched path |
| US11411882B2 (en) | 2016-06-30 | 2022-08-09 | Juniper Networks, Inc. | Generating automatic bandwidth adjustment policies per label-switched path |
| CN108462638A (en) * | 2016-12-12 | 2018-08-28 | 中国电信股份有限公司 | The determination method and system of business routing |
| CN108462638B (en) * | 2016-12-12 | 2021-05-25 | 中国电信股份有限公司 | Method and system for determining service route |
| WO2023125903A1 (en) * | 2021-12-31 | 2023-07-06 | 中国移动通信有限公司研究院 | Channel resource adjustment method and apparatus, and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012130106A1 (en) | 2012-10-04 |
| CN102724599B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2500080C2 (en) | METHOD FOR LOSSLESS ADJUSTMENT OF ODUflex CHANNEL BANDWIDTH AND ODUflex CHANNEL | |
| CN102143052B (en) | Method, equipment and system for lossless bandwidth | |
| CN100508469C (en) | Method and device for regulating broadband in broad band demand distribution service | |
| CN102195859B (en) | Method and system for adjusting bandwidth of optical channel data unit flexible (ODUflex) based on GFP (Generic Framing Procedure) | |
| US9705589B2 (en) | Method of resizing a protected ODUflex connection in an optical transport network | |
| EP1786127B1 (en) | A method and an apparatus for consistency verification of traffic engineering link timeslot status | |
| US7986623B2 (en) | System and method for rejecting a request to alter a connection | |
| EP2978237B1 (en) | Device unit, node device, and method and system for adjusting tunnel bandwidth | |
| US9270367B2 (en) | Method and system for automatically discovering ODUflex bandwith lossless adjustment capability | |
| CN102571544B (en) | A kind of method and system of Bandwidth adjustment | |
| CN102724599A (en) | Bandwidth adjustment processing method for control platform | |
| EP1983712B1 (en) | An automatic discovering method and device for client layer link | |
| EP2466766A1 (en) | Optoelectronic processinig apparatus and processing method for constraint information | |
| CN102447611A (en) | Method and system for establishing bidirectional point-to-multipoint label switched path as well as method and system for removing bidirectional point-to-multipoint label switched path | |
| US20060034203A1 (en) | Mobile communication system and service control device | |
| EP2874353B1 (en) | Service protection method and system for composite link | |
| CN114173383A (en) | Channel bandwidth adjusting method, device and node | |
| WO2022042207A1 (en) | Resource configuration method and communication device | |
| WO2022247490A1 (en) | Bandwidth adjustment method and apparatus, storage medium, and electronic device | |
| CN101621447B (en) | Method, equipment and system for computing service path | |
| US20030161269A1 (en) | Method for providing flow control of ethernet frames transported over a transport SDH/SONET network | |
| CN102804651A (en) | Maintaining time-division multiplexing over pseudowire connections during network outages | |
| EP2953294A1 (en) | Protection switching method, system, and node | |
| WO2018077110A1 (en) | Method for sending packets and receiving packets, and network device and packet sending system | |
| CN103580884A (en) | Protection configuration method, protection configuration system, transmitting-end equipment and receiving-end equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20210330 |