CN102724599B - A kind of control plane Bandwidth adjustment processing method - Google Patents
A kind of control plane Bandwidth adjustment processing method Download PDFInfo
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- CN102724599B CN102724599B CN201110078977.1A CN201110078977A CN102724599B CN 102724599 B CN102724599 B CN 102724599B CN 201110078977 A CN201110078977 A CN 201110078977A CN 102724599 B CN102724599 B CN 102724599B
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- 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
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Abstract
The invention discloses a kind of control plane Bandwidth adjustment processing method, the success rate of Bandwidth adjustment can be improved.Described method includes: the first node of LSP carries bandwidth and the timeslot number that needs adjust, and weight signaling mark in the signaling messages；After the node in addition to first node on described LSP receives the signaling message carrying weight signaling mark, if the time slot after judging the bandwidth after adjusting and adjusting does not mates, then send Bandwidth adjustment failed message to the first node of described LSP, and carry timeslot number information in described Bandwidth adjustment failed message；After described first node receives described Bandwidth adjustment failed message, re-start Bandwidth adjustment according to described timeslot number information, or cancel bandwidth adjustment operations.The present invention makes control plane in the case of ODUflex (GFP) connects Bandwidth adjustment failure, by the negotiation of timeslot number information, it is ensured that the success of Bandwidth adjustment, improves the success rate of Bandwidth adjustment, and does not interferes with the business of client.
Description
Technical field
The present invention relates to moving communicating field, be specifically related to OTN (Optical Transport Network,
Optical transport network) in, control the processing method of the lossless adjustment of plane bandwidth.
Background technology
In order to realize the carrying of OTN full-service, ITU-T proposes and transmits container ODUflex (spirit flexibly
Speed light digital units alive) concept so that OTN can carry the full-service including IP efficiently,
And improve line bandwidth utilization rate to greatest extent.At present ITU-T defines the ODUflex of two kinds of forms:
One is ODUflex based on constant bit-rate (Constant Bit Rate is called for short CBR) business,
Speed can be arbitrary, and CBR business is encapsulated into this ODUflex by synchronization map；Another kind is
ODUflex based on Packet Service, the speed of this ODUflex is HO ODU (High Order
Optical Data Unit, high-order light data cell) N times of time slot, bag business passes through GFP (Generic
Framing Procedure, Generic Framing Procedure) it is encapsulated into ODUflex, it is denoted as ODUflex (GFP).
For ODUflex (GFP), owing to the bandwidth of packet client signal is can be time dependent,
So be unfavorable for effective utilization of bandwidth resources for ODUflex (GFP) distribution fixed-bandwidth.If
ODUflex (GFP) can support dynamic Bandwidth adjustment, then not only can preferably meet packet client
The various bandwidth requirement of signal, and bandwidth availability ratio can be effectively improved and save bandwidth resources.To this end,
ODUflex (GFP) is accomplished by possessing the ability nondestructively adjusting bandwidth.ODUflex (GFP) lossless adjustment is anticipated
Taste ODUflex (GFP) needs to complete the adjustment of bandwidth in the case of dynamically and not interrupting existing business.
To this end, ITU-T proposes suggestion G.HAO (the Hitless Adjustment of about lossless Bandwidth adjustment
ODUflex (GFP)), connected by link and adjust (LCR) and two rank of Bandwidth adjustment (BWR)
Section completes the lossless Bandwidth adjustment of ODUflex.
OTN network-based control plane uses GMPL S (Generalized Multi-Protocol Label
Switching) protocol stack, wherein signaling uses RSVP-TE (Resource ReserVation
Protocol-Traffic Engineering) agreement.For ODUflex end to end connects, at it
It is possible that adjust failed situation in bandwidth adjustment process, but at present for failed adjustment, also do not have
There is corresponding control plane treatment mechanism.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of plane Bandwidth adjustment processing method that controls, permissible
Improve the success rate of Bandwidth adjustment.
For solving above-mentioned technical problem, the invention provides a kind of control plane Bandwidth adjustment processing method,
Including:
The first node of label switched path (LSP) in the signaling messages carry need adjust bandwidth and time
Gap number, and weight signaling mark；
The node in addition to first node on described LSP receives the signaling message carrying weight signaling mark
After, it is judged that if the bandwidth after Tiao Zhenging is not mated, then to the first node of described LSP with the time slot after adjustment
Send Bandwidth adjustment failed message, and carry timeslot number information in described Bandwidth adjustment failed message；
After described first node receives described Bandwidth adjustment failed message, according to described timeslot number information again
Carry out Bandwidth adjustment, or cancel bandwidth adjustment operations.
Further, the ODU that node is described LSP process in addition to first node on described LSP
The Ingress node of network.
Further, described timeslot number information is the node place in addition to first node on described LSP
ODU network needs the timeslot number being increased or decreased.
Further, LSP head node pre-sets and retries qualifications；Described LSP head node is receiving
After described Bandwidth adjustment failed message, it is judged that retry qualifications, then according to described time slot if met
Number information re-starts Bandwidth adjustment.
Further, retry qualifications described in be number of retries or retry the time.
Further, described heavy signaling mark is placed in the LSP attribute of described signaling message by described first node
In object.
Further, the node in addition to first node on described LSP is in the following ways in described bandwidth
Adjust in failed message and carry timeslot number information: described timeslot number information is placed in error message object
(ERROR_SPEC) TLV in carries.
Further, described node also carries in the Bandwidth adjustment failed message that the first node of LSP sends
There is the error message for representing error reason.
Further, described error message is carried in being placed in ERROR_SPEC object.
For solving above-mentioned technical problem, present invention also offers a kind of control plane Bandwidth adjustment processing system,
Including:
First device, is positioned at the first node of LSP, and it is for carrying the band needing to adjust in the signaling messages
Width and timeslot number, and weight signaling mark；
Second device, the node in addition to first node being positioned on LSP, it is for carrying receiving
After the signaling message of weight signaling mark, it is judged that if the bandwidth after Tiao Zhenging is not mated with the time slot after adjustment,
Then send Bandwidth adjustment failed message to the first node of described LSP, and at described Bandwidth adjustment failed message
In carry timeslot number information；
3rd device, is positioned at the first node of described LSP, and it is for receiving the failure of described Bandwidth adjustment
After message, re-start Bandwidth adjustment according to described timeslot number information, or cancel bandwidth adjustment operations.
The embodiment of the present invention controls plane signaling by extension, makes control plane at ODUflex (GFP)
In the case of connecting Bandwidth adjustment failure, by the negotiation of timeslot number information, ensure Bandwidth adjustment as far as possible
Success, thus improve the success rate of Bandwidth adjustment, and do not interfere with the business of client.
Accompanying drawing explanation
Fig. 1 is the signaling process figure that bandwidth is adjusted；
Fig. 2 is a kind of schematic network structure supporting G.HAO.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that
In the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
Embodiment 1
The present embodiment method is applicable to the upper node of LSP (Label Switched Path, label switched path)
Process during execution bandwidth adjustment operations:
The first node of LSP carries the bandwidth needing to adjust and timeslot number, and weight signaling in the signaling messages
Mark；Described heavy signaling mark for indicate described LSP on except head node in addition to other nodes judgement
By first for timeslot number information notice node when bandwidth after adjustment is not mated with the time slot after adjustment；
After the node in addition to first node on LSP receives the signaling message carrying weight signaling mark,
If the time slot after judging the bandwidth after adjusting and adjusting does not mates, then send bandwidth to the first node of LSP
Adjust failed message, and carry timeslot number information in described Bandwidth adjustment failed message；
After described first node receives described Bandwidth adjustment failed message, according to described timeslot number information again
Carry out Bandwidth adjustment, or cancel bandwidth adjustment operations.
The node in addition to first node on the above-mentioned LSP carrying out judging is usually the ODU of LSP process
The Ingress node of network, because generally Ingress node is it will be appreciated that the time slot of its place ODU network and bandwidth
Etc. situation.
The timeslot number information that node carries in Bandwidth adjustment failed message is preferably this node place network and needs
Timeslot number to be increased or decreased.Add deduct in addition it is also possible to directly carry current time slots number with needs increasing
The sum of few timeslot number, but this application is only limitted to the LSP situation through two ODU networks.Preferably
Ground, except carrying timeslot number information, node can also carry information such as adjusting failed reason.
LSP head node can pre-set and retry qualifications, such as, can be number of retries or weight
The examination time (can carry out timing by intervalometer), LSP head node after receiving Bandwidth adjustment failed message,
First judge whether to meet to retry qualifications, if it is satisfied, such as do not arrive number of retries or do not arrive
Retry the time, then re-starting Bandwidth adjustment according to this timeslot number information, if be unsatisfactory for, the most arriving
Reach number of retries or arrived the time of retrying, then cancelling bandwidth adjustment operations.In other embodiments,
LSP also can be not provided with retrying qualifications, and acquiescence only retries once, or do not retries, directly takes
Disappear bandwidth adjustment operations.
In order to compatible with prior art, first node, during performing bandwidth adjustment operations, the most downstream saves
ODUflex (GFP) the connection signaling that point sends is carried a weight signaling mark, is used for indicating downstream to save
By first for timeslot number information notice node when point time slot after judging the bandwidth after adjusting and adjusting does not mates.
Existing RSVP-TE signaling can be carried out extended below to complete this function: to LSP_ATTRIBUTES
(LSP attribute) object is extended, such as by the LSP Attributes of LSP_ATTRIBUTES object
The 5th bit definitions in TLV (Type Lenth Value) is to represent the bit of weight signaling mark.When
When this position is set to 1, represent when intermediate node is running into the bandwidth after Bandwidth adjustment the most i.e. adjusts and adjustment
After time slot when not mating, need to report timeslot number information to first node.
Extended below timeslot number is reported to believe realizing intermediate node by existing RSVP-TE signaling is carried out
The function of breath:
Error message object (ERROR_SPEC) is extended, defines a new timeslot number TLV,
It is used as to carry timeslot number information.When judging to adjust unsuccessfully, intermediate node uses this TLV on first node
The timeslot number that report needs.After first node receives timeslot number information, by the timeslot number weight of instruction in this TLV
New initiation adjusts signaling.
In view of autgmentability from now on, it is also possible to the mistake being newly defined as follows in ERROR_SPEC object
False information: error code (Error Code) and improper value (Error Value), is used for representing error reason.
Such as:
Error Code=50 represents that connection adjusts unsuccessfully；
Error Value=1 represents that ODUflex connects time slot and adjusts unsuccessfully.
Above numerical value is only one citing, not as a limitation of the invention.
In the present embodiment, it is achieved the system of said method includes:
First device, is positioned at the first node of LSP, and it is for carrying the band needing to adjust in the signaling messages
Width and timeslot number, and weight signaling mark；
Second device, the node in addition to first node being positioned on LSP, it is for carrying receiving
After the signaling message of weight signaling mark, it is judged that if the bandwidth after Tiao Zhenging is not mated with the time slot after adjustment,
Then send Bandwidth adjustment failed message to the first node of described LSP, and at described Bandwidth adjustment failed message
In carry timeslot number information；
3rd device, is positioned at the first node of described LSP, and it is for receiving the failure of described Bandwidth adjustment
After message, re-start Bandwidth adjustment according to described timeslot number information, or cancel bandwidth adjustment operations.
Preferably, this first device carries weight signaling mark in the following ways: described heavy signaling identified
It is placed in the LSP attributes object of described signaling message.
Preferably, the node in addition to first node on the LSP that the second device is positioned at is: described LSP
The Ingress node of the ODU network of process.Described timeslot number information be on described LSP except first node it
Outer node place ODU network needs the timeslot number being increased or decreased.
Preferably, this second device carries time slot in the following ways in described Bandwidth adjustment failed message
Number information: described timeslot number message is placed in the TLV in error message object (ERROR_SPEC)
In carry.
Preferably, this second device can be additionally used in the Bandwidth adjustment failure sent to described LSP head node
Message is carried the error message for representing error reason.Described mistake letter can be carried in the following ways
Breath: described error message is placed in ERROR_SPEC object and carries.
Preferably, the 3rd device is additionally operable to pre-set and retries qualifications；And for receiving
After described Bandwidth adjustment failed message, it is judged that retry qualifications, then according to described timeslot number if met
Information re-starts Bandwidth adjustment.The described qualifications that retries is number of retries or retries the time.
Embodiment 2
The present embodiment with retry qualifications as number of retries as a example by illustrate.As it is shown in figure 1, LSP
The operation of upper business head node is as it is shown in figure 1, comprise the following steps:
Step 201, business head node receives connection bandwidth adjustment request, arranges maximum reattempt times；
This request is triggered by management plane.
Step 202, it is judged that whether current number of retries is less than maximum reattempt times, if it is, perform step
Rapid 203, otherwise perform step 212；
Step 203, first node is sent Bandwidth adjustment signaling, such as, is sent by Path (path) message,
Wherein carry weight signaling mark and need bandwidth and the timeslot number adjusted；
Timeslot number herein is probably the timeslot number that first node initial setting up needs to adjust, it is also possible to first joint
After point receives the timeslot number information of intermediate node feedback, the timeslot number reset.
Step 204, when certain intermediate node receives Bandwidth adjustment signaling, checks that the parameter in signaling message is
No legal (existing validity checking), if legal, performs step 204, if illegal, knot
Bundle；
The most whether step 205, it is judged that whether the timeslot number after adjustment meets requirement, meet the band after adjusting
Wide requirement, if it is satisfied, perform step 210, if be unsatisfactory for, performs step 206；
Step 206, this intermediate node by correct timeslot number information (such as this intermediate node place
The timeslot number being increased or decreased is needed for ODU) fill out in PathErr (Path Error, path error)
Send to first node in message and by this PathErr message；
Step 207, after business head node receives PathErr message, adds 1 by current number of retries；
Step 208, business head node reconfigures PATH message by timeslot number given in PathErr message；
Step 209, business head node checks maximum reattempt times, performs step 202；
Step 210, carries out Bandwidth adjustment, and Bandwidth adjustment signaling is sent to downstream node, wait own
After the success of downstream node Bandwidth adjustment, flow process terminates；
If this carries out the Ingress node that intermediate node is certain ODU network judged, then it is judging tune
After time slot after whole meets requirement, the downstream node controlled in this ODU network adjusts according to signaling request
Bandwidth, and this Bandwidth adjustment signaling is forwarded to the Ingress node of next ODU network.
Step 211, cancels signaling, and Bandwidth adjustment failure, flow process terminates.
Embodiment 3
When occurring unsuccessfully during increasing bandwidth between node A and node Z in conjunction with Fig. 1, Fig. 2 explanation
Process.As illustrated in fig. 2, it is assumed that the ODUflex that there is an a width of 35G of band between A, Z is mono-
Being designated as Con1 to connection, this is connected in ODU1 network and ODU2 network all occupy 27 time slots.
Now due to business demand, need to be further added by the bandwidth (a width of 37.5G of band after i.e. increasing) of 2.5G；
And assume to increase by 2 time slots at ODU1 network, increase by 3 time slots at ODU2 network, just can meet
The requirement of G.HAO agreement.The processing procedure of chain of command comprises the following steps:
Step 301, node A receives to connect into Con1 increases the request of 2.5G bandwidth；
In this example, it is assumed that the adjustment number of retries that node A presets is 3 times.
Step 302, the PATH message in the control planar configuration RSVP-TE signaling of node A, will
PATH message is sent to node B；
Node A arranges corresponding object by claimed below:
Bit by the LSP Attributes TLV weight signaling mark in LSP_ATTRIBUTES object
(the 5th bit) puts 1；By in SENDER_TSPEC (sender's data streaming service characteristic) object
Traffic Parameters (service parameter) in the value filled out of service bandwidth field be set to 37.5G；By NMC
Field is set to 29.
Step 303, after the control plane of node B receives above-mentioned PATH message, parses NMC word
Section and service bandwidth field, and and current business time-slot 27 contrast after learn when needing to increase by 2
Gap resource；
Step 304, node B forwards above-mentioned PATH message to node C；Node C is further forwarded to
Node D；
Step 305, after the control plane of node D receives above-mentioned PATH message, is parsing NMC
After field and service bandwidth field, learn needs for connect increase 2.5G bandwidth, but with NMC field
Value 29 contradicts, because the bandwidth of 2.5G needs 3 time interval resources in ODU3 network；
Step 306, node D, because of above-mentioned contradiction, connects and adjusts signaling failure, by PathErr message
Reporting Bandwidth adjustment failure information to node A, wherein PathErr message is by setting claimed below:
Error Code is set to 50；Error Value is set to 1；Value in timeslot number TLV is set to 30.
Step 307, after node A receives the PathErr message of node D, checks number of retries.Due to
Number of retries be less than 3, resend adjustment signaling PATH message, this at this moment node A by NMC word
Section is set to 30.
After retrying, downstream node is successfully completed connection bandwidth to be increased.
Embodiment 4
When occurring unsuccessfully during reducing bandwidth between node A and node Z in conjunction with Fig. 1, Fig. 2 explanation
Operation.As illustrated in fig. 2, it is assumed that there is the ODUflex of an a width of 37.5G of band between A, Z
Connect and be designated as Con2.Now due to business demand, need to reduce again the bandwidth of 35G；And assume this company
Connect and originally in OUD1 network and ODU2 network, all took 30 time slots.The processing procedure of chain of command
Comprise the following steps:
Step 401, node A receives and connects the request reducing 35G bandwidth into Con1；
In this example, it is assumed that the adjustment number of retries that node A presets is 2 times.
Step 402, the PATH message in the control planar configuration RSVP-TE signaling of node A, will
PATH message is sent to node B；
Node A arranges corresponding object by claimed below:
LSP Attributes TLV weight signaling bit position (the 5th ratio in LSP_ATTRIBUTES object
Special position) put 1；By service bandwidth word in the Traffic Parameters in SENDER_TSPEC object
The value that section is filled out is set to 2.5G；NMC field is set to 3.
Step 403, after the control plane of node B receives above-mentioned PATH message, parses NMC word
Section and service bandwidth field, and and previous business time-slot 30 contrast after learn and need to reduce 27
Time interval resource；
Step 404, node B forwards above-mentioned PATH message to node C；Node C is further forwarded to
Node D；
Step 405, after the control plane of node D receives above-mentioned PATH message, is parsing NMC
After field and service bandwidth field, learn needs for connect reduce 35G bandwidth, but with NMC field
Value 3 contradicts, because the bandwidth of 35G needs 28 time interval resources in ODU3 network；
Step 406, node D, because of above-mentioned contradiction, connects and adjusts signaling failure, by PathErr message
Reporting Bandwidth adjustment failure information to node A, wherein PathErr message is by setting claimed below:
Error Code is set to 50；Error Value is set to 1；Value in timeslot number TLV is set to 2.
Step 407, after node A receives the PathErr message of node D, checks number of retries.Due to
Number of retries is less than 2, resends adjustment signaling PATH message, and now node A is by NMC field
It is set to 2.
After retrying, downstream node is successfully completed connection bandwidth to be reduced.
One of ordinary skill in the art will appreciate that all or part of step in said method can pass through program
Instructing related hardware to complete, described program can be stored in computer-readable recording medium, as read-only
Memorizer, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use
One or more integrated circuits realize.Correspondingly, each module/unit in above-described embodiment can use
The form of hardware realizes, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to appoint
The combination of the hardware and software of what particular form.
Certainly, the present invention also can have other various embodiments, spiritual and essence without departing substantially from the present invention
In the case of, those of ordinary skill in the art work as can make various corresponding change and deformation according to the present invention,
But these change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (18)
1. control a plane Bandwidth adjustment processing method, including:
The first node of label switched path (LSP) in the signaling messages carry need adjust bandwidth and time
Gap number, and weight signaling mark；
The node in addition to first node on described LSP receives the signaling message carrying weight signaling mark
After, it is judged that if the bandwidth after Tiao Zhenging is not mated, then to the first node of described LSP with the time slot after adjustment
Send Bandwidth adjustment failed message, and carry timeslot number information in described Bandwidth adjustment failed message；
After described first node receives described Bandwidth adjustment failed message, according to described timeslot number information again
Carry out Bandwidth adjustment, or cancel bandwidth adjustment operations.
2. the method for claim 1, it is characterised in that:
The entrance of the ODU network that node is described LSP process in addition to first node on described LSP
Node.
3. method as claimed in claim 1 or 2, it is characterised in that:
Described timeslot number information is that the node place ODU network in addition to first node on described LSP needs
Timeslot number to be increased or decreased.
4. the method for claim 1, it is characterised in that:
LSP head node pre-sets and retries qualifications；
Described LSP head node is after receiving described Bandwidth adjustment failed message, it is judged that retry if met
Qualifications, then re-start Bandwidth adjustment according to described timeslot number information.
5. method as claimed in claim 4, it is characterised in that:
The described qualifications that retries is number of retries or retries the time.
6. the method for claim 1, it is characterised in that:
Described heavy signaling mark is placed in the LSP attributes object of described signaling message by described first node.
7. the method for claim 1, it is characterised in that:
The node in addition to first node on described LSP unsuccessfully disappears at described Bandwidth adjustment in the following ways
Breath carries timeslot number information: described timeslot number information is placed in error message object ERROR_SPEC
In type lengths values TLV in carry.
8. the method as described in claim 1 or 6 or 7, it is characterised in that:
Described node also carries for representing in the Bandwidth adjustment failed message that the first node of LSP sends
The error message of error reason.
9. method as claimed in claim 8, it is characterised in that:
Described error message is placed in ERROR_SPEC object and carries.
10. control a plane Bandwidth adjustment processing system, including:
First device, is positioned at the first node of label switching path LSP, and it is for carrying in the signaling messages
Need bandwidth and the timeslot number adjusted, and weight signaling mark；
Second device, the node in addition to first node being positioned in label switching path LSP, it is used for
Receive carry weight signaling mark signaling message after, it is judged that if the bandwidth after Tiao Zhenging with adjustment after
Time slot does not mates, then send Bandwidth adjustment failed message to the first node of described LSP, and in described bandwidth
Adjust in failed message and carry timeslot number information；
3rd device, is positioned at the first node of described label switching path LSP, its for receive described
After Bandwidth adjustment failed message, re-start Bandwidth adjustment according to described timeslot number information, or cancel bandwidth
Adjust operation.
11. systems as claimed in claim 10, it is characterised in that:
The node in addition to first node on the LSP that described second device is positioned at is: described LSP process
The Ingress node of ODU network.
12. systems as described in claim 10 or 11, it is characterised in that:
Described timeslot number information is that the node place ODU network in addition to first node on described LSP needs
Timeslot number to be increased or decreased.
13. systems as claimed in claim 10, it is characterised in that:
Described 3rd device, is additionally operable to pre-set and retries qualifications；And for receive described
After Bandwidth adjustment failed message, it is judged that retry qualifications, then according to described timeslot number information if met
Re-start Bandwidth adjustment.
14. systems as claimed in claim 13, it is characterised in that:
The described qualifications that retries is number of retries or retries the time.
15. systems as claimed in claim 10, it is characterised in that:
Described first device carries weight signaling mark in the following ways: described heavy signaling mark is placed in institute
State in the LSP attributes object of signaling message.
16. systems as claimed in claim 10, it is characterised in that:
Described second device carries timeslot number letter in the following ways in described Bandwidth adjustment failed message
Breath: described timeslot number message is placed in the type lengths values in error message object ERROR_SPEC
TLV carries.
17. systems as described in claim 10 or 15 or 16, it is characterised in that:
Described second device is additionally operable to taking in the Bandwidth adjustment failed message that described LSP head node sends
Band is for representing the error message of error reason.
18. systems as claimed in claim 17, it is characterised in that:
Described second device carries described error message in the following ways: described error message be placed in
ERROR_SPEC object carries.
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 |
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| CN201110078977.1A CN102724599B (en) | 2011-03-30 | 2011-03-30 | A kind of control plane Bandwidth adjustment processing method |
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| 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 |
| 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 |
| US10033657B2 (en) | 2016-06-30 | 2018-07-24 | Juniper Networks, Inc. | Generating automatic bandwidth adjustment policies per label-switched path |
| 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 |
| CN116437373A (en) * | 2021-12-31 | 2023-07-14 | 中国移动通信有限公司研究院 | Channel resource adjustment method and device and communication equipment |
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2011
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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 |
|---|
| A Novel Scheme for Realization of Flexible ODU Hitless Resizing;Chao Fang, Xue Chen;《IEEE》;20100619;全文 * |
| Technology Agnostic OSPF Traffic Engineering Extensions for Generalized MPLS (GMPLS);Huawei;Ericsson等;《IETF》;20101015;全文 * |
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| Publication number | Publication date |
|---|---|
| CN102724599A (en) | 2012-10-10 |
| WO2012130106A1 (en) | 2012-10-04 |
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