CN110267310A - Link capacity method of adjustment and device, system, controller, network node - Google Patents

Link capacity method of adjustment and device, system, controller, network node Download PDF

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Publication number
CN110267310A
CN110267310A CN201810202001.2A CN201810202001A CN110267310A CN 110267310 A CN110267310 A CN 110267310A CN 201810202001 A CN201810202001 A CN 201810202001A CN 110267310 A CN110267310 A CN 110267310A
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Prior art keywords
node
capacity
message
link
adjustment
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Granted
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CN201810202001.2A
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CN110267310B (en
Inventor
张思栋
占治国
王强
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ZTE Corp
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ZTE Corp
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Priority to CN201810202001.2A priority Critical patent/CN110267310B/en
Priority to PCT/CN2019/073697 priority patent/WO2019174424A1/en
Publication of CN110267310A publication Critical patent/CN110267310A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a kind of link capacity method of adjustment and device, system, controller, network node, storage mediums, the described method includes: the service route based on chain road, determine that the corresponding adjusts path of the link, the adjusts path indicate the adjustment sequence of each node in the link；Former capacity and target capacity to be adjusted based on the link, determine the corresponding adjustable strategies of the link；Each node corresponding adjusts path of the link and the adjustable strategies being sent in the link；Adjustment notification message is sent to first node, each node in the link is based on the adjusts path and the adjustable strategies carry out capacity adjustment to trigger, wherein the first node is determined based on the adjusts path.

Description

Link capacity method of adjustment and device, system, controller, network node
Technical field
The present invention relates to wireless communication field more particularly to a kind of flexible Ethernet (FlexE, Flexible Ethernet) the end-to-end link capacity adjustment method and device, system, controller, network node, storage medium in network.
Background technique
FlexE technology is by International Organization for standardization's OIF Optical Internetworking Forum (OIF, Optical Internetworking Forum it) initiates to study in March, 2015, and formally votes through relevant technical documentation in March, 2016.FlexE technology mentions A series of different media access control (MAC, Media Access Control) rates are transmitted for a kind of general mechanism Business, such as: the single biggish business of MAC speed ratio can be transmitted, multiple lesser business of MAC speed ratio can also be transmitted Set, the business of transmission are no longer limited to the business of single MAC rate.
The difference of FlexE and traditional ethernet in structure is: FlexE MAC layer and Physical Coding Sublayer (PCS, Physical Coding Sublayer) between more a bed course (FlexE Shim), the functions of the bed course be building one Size is the schedule (Calendar) of 20 × n 66b block, and n is the number of the Ethernet physical interface (PHY) of binding, each 66b block represents the time slot of a 5G.In multiplexing side, the business of different MAC rates puts into corresponding according to the multiple proportion with 5G In several 66b blocks.Every 20 66b blocks constitute a sublist (sub-Calendar), and size is 20 × n 66b block Calendar is distributed in n sub-Calendar.For each sub-Calendar, every 20 × 1023 66b blocks addition one The expense of a 66b block, the expense of a 66b block are also referred to as an expense block, and expense block is used to store relevant mapping relations, such as Mapping relations between client traffic and time slot, wherein each sub-Calendar is passed in the ethernet PHY of single 100G It send.In demultiplexing side, n sub-Calendar forms the Calendar that a size is 20 × n 66b block, according to expense block The mapping relations of middle storage extract corresponding client traffic from the 66b block of corresponding number.
Fig. 1 is the schematic diagram of overhead field, as shown in Figure 1, an overhead field includes 8 expense blocks, each expense block It is 66b, it is every to have passed one group of 20 × 1023 66b block, an expense block is passed, as such, it is desirable to pass 8 times, can just be opened one Pin field has passed.Further, since Client Calendar the two fields of A and Client Calendar B indicate two kinds The time slot configuration situation of calendar, one overhead field of every transmission are only able to achieve the configuration of a time slot, if by whole The configuration of time slot transfers, it is necessary to which transmission is more than or equal to the overhead field of number of time slots, such as 32 overhead fields.
As shown in Figure 1, currently used which kind of calendar (Client Calendar A or Client Calendar B), It is to be identified by this field of C.This field of C can occur three times in overhead field, be 1bit every time, C field Value only has 0 or 1.Ordinary circumstance, in the process (including 8 expense blocks) of a Flexe frame, C field should be the same； But if there is abnormal conditions, such as C field has taken twice 0, as soon as time 1, then needing by way of majority vote, to sentence The value of disconnected C field.C field value is that 0 currently used Client Calendar A, C the field value of expression is that 1 expression is current Use Client Calendar B.Different Client Calendar, which is represented, uses different time slot configurations (namely capacity).
If FlexE will carry out the switching (namely capacity adjustment) of calendar, such as from present Client Calendar A is switched to Client Calendar B, then this node and distant-end node will by CR in overhead field and The two fields of CA interact negotiation.Wherein, CR indicates schedule switching request (Calendar switch Request), CA indicates schedule switching confirmation (Calendar switch Acknowledge).Value of this node the CR in overhead field It is set as 1, after distant-end node receives, after completing corresponding prepare, the value of CA in Flexe expense is set as 1.This section point receives CA Confirmation after, the value that C field is arranged in the overhead field of next Flexe frame is 1, indicates formally to begin to use Client The time slot configuration of Calendar B.
It is that there is no problem using the above method if pertaining only to the calendar switching of two nodes in network. But if being related to the calendar switching of multiple nodes in network, the transfer sequence and handover mechanism of node will shadows The integrality for arriving data is rung, serious conditions will lead to data packetloss, and time delay increases and shake aggravation.
Summary of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of link capacity method of adjustment and device, system, Controller, network node, storage medium.
Link capacity method of adjustment provided in an embodiment of the present invention, comprising:
Based on the service route of chain road, the corresponding adjusts path of the link is determined, described in the adjusts path expression The adjustment sequence of each node in link；
Former capacity and target capacity to be adjusted based on the link, determine the corresponding adjustable strategies of the link；
Each node corresponding adjusts path of the link and the adjustable strategies being sent in the link；
To first node send adjustment notification message, with trigger each node in the link be based on the adjusts path and The adjustable strategies carry out capacity adjustment, wherein the first node is determined based on the adjusts path.
In the embodiment of the present invention, the former capacity based on the link and target capacity to be adjusted determine the chain The corresponding adjustable strategies in road, comprising:
If the original capacity is less than the target capacity, it is determined that the corresponding adjustable strategies of the link tune up for capacity Strategy；
If the original capacity is greater than the target capacity, it is determined that the corresponding adjustable strategies of the link are turned down for capacity Strategy.
In the embodiment of the present invention, if the adjustable strategies are that capacity tunes up strategy, the method also includes:
Obtain the residual capacity of each node in the link；
Judge whether the residual capacity of each node in the link is more than or equal to the target capacity and the former capacity Difference；
If the residual capacity of each node is all larger than the difference equal to the target capacity and the former capacity in the link Value then executes described the step of sending adjustment notification message to first node；
If the residual capacity of each node has the difference less than the target capacity and the former capacity in the link, Do not execute adjustment operation.
In the embodiment of the present invention, the capacity tunes up each node that strategy is used to indicate in the link and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends schedule switching request CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys schedule switching confirmation CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, the capacity turns each node that strategy is used to indicate in the link down and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
The link capacity method of adjustment of offer of the embodiment of the present invention, comprising:
Adjustment information is obtained, the adjustment information includes the corresponding adjusts path of link and adjustable strategies；
Based on the corresponding adjusts path of the link and the adjustable strategies, capacity adjustment is carried out to destination node.
In the embodiment of the present invention, the adjustable strategies are that capacity tunes up strategy；
It is described to be based on the corresponding adjusts path of the link and the adjustable strategies, capacity tune is carried out to destination node It is whole, comprising:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, the method also includes:
If receiving CA message, and destination node is first node, then down hop node sends capacity and adjusts the finger that comes into force After order, adjustment success message is sent to controller.
In the embodiment of the present invention, the adjustable strategies are that capacity turns strategy down；
It is described to be based on the corresponding adjusts path of the link and the adjustable strategies, capacity tune is carried out to destination node It is whole, comprising:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, the method also includes:
If receiving capacity adjustment validation instructions, and destination node is tail node, then adjusted successfully to controller transmission Message.
In the embodiment of the present invention, the method also includes:
If destination node is not first node and is not tail node, to the business datum and hair of the receiving side of destination node The business datum of side is sent to carry out data cross processing.
In the embodiment of the present invention, the method also includes:
If the unidirectional capacity of destination node adjusts successfully, and there are upstream capacity bandwidth and downstream capacity bandwidth are different It causes, then when the business datum of business datum and sending side to the receiving side carries out data cross processing, to the reception The business datum of side and the business datum of sending side carry out rate-matched processing.
It is described that rate is carried out to the business datum of the receiving side and the business datum of sending side in the embodiment of the present invention With processing, comprising:
The speed adjust of the business datum of the receiving side is extremely consistent with the rate of the business datum of the sending side, In, the rate of the business datum of the receiving side is less than the rate of the business datum of the sending side.
In the embodiment of the present invention, industry of the speed adjust of the business datum by the receiving side extremely with the sending side The rate for data of being engaged in is consistent, comprising:
For the data packet of the business datum of the receiving side, it is inserted into free block inside the data packet, so that institute State the rate adaptation of the business datum of receiving side to the sending side business datum rate；Alternatively,
For the data packet of the business datum of the receiving side, it is inserted into free block between adjacent data packet, so that institute State the rate adaptation of the business datum of receiving side to the sending side business datum rate.
Link capacity provided in an embodiment of the present invention adjusts device, comprising:
First determination unit determines the corresponding adjusts path of the link for the service route based on chain road, described Adjusts path indicates the adjustment sequence of each node in the link；
Second determination unit, for based on the link former capacity and target capacity to be adjusted, determine the link Corresponding adjustable strategies；
Transmission unit, for the corresponding adjusts path of the link and the adjustable strategies to be sent in the link Each node；
Trigger unit is based on institute for sending adjustment notification message to first node to trigger each node in the link It states adjusts path and the adjustable strategies carries out capacity adjustment, wherein the first node is determined based on the adjusts path.
In the embodiment of the present invention, second determination unit, if being less than the target capacity for the former capacity, Determine that the corresponding adjustable strategies of the link are that capacity tunes up strategy；If the original capacity is greater than the target capacity, really Determining the corresponding adjustable strategies of the link is that capacity turns strategy down.
In the embodiment of the present invention, described device further include:
Acquiring unit, for obtaining the residual capacity of each node in the link；
Judging unit, for judge the residual capacity of each node in the link whether be more than or equal to the target capacity with The difference of the original capacity；
The trigger unit, if the residual capacity for each node in the link is all larger than equal to the target capacity With the difference of the former capacity, then described the step of sending adjustment notification message to first node is executed；
If the residual capacity of each node has the difference less than the target capacity and the former capacity in the link, Do not execute adjustment operation.
In the embodiment of the present invention, the capacity tunes up each node that strategy is used to indicate in the link and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, the capacity turns each node that strategy is used to indicate in the link down and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
Link capacity provided in an embodiment of the present invention adjusts device, comprising:
Acquiring unit, for obtaining adjustment information, the adjustment information includes the corresponding adjusts path of link and adjustment plan Slightly；
Adjustment unit, for be based on the corresponding adjusts path of the link and the adjustable strategies, to destination node into The adjustment of row capacity.
In the embodiment of the present invention, the adjustable strategies are that capacity tunes up strategy；
The adjustment unit, is used for: if receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, described device further include:
Notification unit, if receiving CA message for the adjustment unit, and destination node is first node, then when described After adjustment unit down hop node sends capacity adjustment validation instructions, adjustment success message is sent to controller.
In the embodiment of the present invention, the adjustable strategies are that capacity turns strategy down；
The adjustment unit, is used for: if receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In the embodiment of the present invention, described device further include:
Notification unit, if receiving capacity adjustment validation instructions for the adjustment unit, and destination node is periproct Point then sends adjustment success message to controller.
In the embodiment of the present invention, described device further include:
Cross processing unit connects destination node if not being first node for destination node and not being tail node The business datum of the business datum and sending side of receiving side carries out data cross processing.
In the embodiment of the present invention, the cross processing unit is adjusted to if being also used to the unidirectional capacity of the destination node Function, and there are upstream capacity bandwidth and downstream capacity bandwidth are inconsistent, then to the receiving side business datum and sending side Business datum when carrying out data cross processing, the business datum of business datum and sending side to the receiving side carries out rate Matching treatment.
In the embodiment of the present invention, the cross processing unit, for by the speed adjust of the business datum of the receiving side It is extremely consistent with the rate of the business datum of the sending side, wherein the rate of the business datum of the receiving side is less than the hair Send the rate of the business datum of side.
In the embodiment of the present invention, the cross processing unit, the data packet of the business datum for being directed to the receiving side, It is inserted into free block inside the data packet, so that the rate adaptation of the business datum of the receiving side is to the sending side The rate of business datum；Alternatively, the data packet of the business datum for the receiving side, is inserted into idle between adjacent data packet Block so that the rate adaptation of the business datum of the receiving side to the sending side business datum rate.
Controller provided in an embodiment of the present invention adjusts device including above-mentioned link capacity.
Network node provided in an embodiment of the present invention adjusts device including above-mentioned link capacity.
Link capacity provided in an embodiment of the present invention adjusts system, above-mentioned including above-mentioned controller and at least two Network node, wherein
The controller is connect with each network node, has number according to service route foundation between each network node According to channel.
Storage medium provided in an embodiment of the present invention, is stored thereon with computer program, and the computer program is processed Device realizes the step in above-mentioned link capacity method of adjustment when executing.
In the technical solution of the embodiment of the present invention, based on the service route of chain road, the corresponding adjustment of the link is determined Path, the adjusts path indicate the adjustment sequence of each node in the link；Former capacity based on the link and to be adjusted Target capacity, determine the corresponding adjustable strategies of the link；By the corresponding adjusts path of the link and the adjustment plan Each node being slightly sent in the link；Adjustment notification message is sent to first node, to trigger each node in the link Capacity adjustment is carried out based on the adjusts path and the adjustable strategies, wherein the first node is based on the adjusts path It determines.Using the technical solution of the embodiment of the present invention, node each in link is controlled by controller, according to the chain The former capacity on road and target capacity to be adjusted and service route provide an optimal adjustable strategies and adjustment sequence, from And quick, low time delay, low cost, lossless link capacity adjustment (i.e. calendar switching) side are realized among multiple nodes Case.
Detailed description of the invention
Attached drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is the schematic diagram of FlexE overhead field；
Fig. 2 is the flow diagram one of the link capacity method of adjustment of the embodiment of the present invention；
Fig. 3 is the flow diagram two of the link capacity method of adjustment of the embodiment of the present invention；
Fig. 4 is the flow diagram three of the link capacity method of adjustment of the embodiment of the present invention；
Form schematic diagram of the Fig. 5 based on rate-matched insertion idle block；
Fig. 6 is the increased flow diagram of link capacity of the embodiment of the present invention；
Fig. 7 is the flow diagram of the link capacity reduction of the embodiment of the present invention；
Fig. 8 is the successful schematic diagram of increase time slot of the embodiment of the present invention；
Fig. 9 is the schematic diagram one for increasing time slot failure of the embodiment of the present invention；
Figure 10 is the schematic diagram two for increasing time slot failure of the embodiment of the present invention；
Figure 11 is the successful schematic diagram of deletion time slot of the embodiment of the present invention；
Figure 12 is the schematic diagram for deleting time slot failure of the embodiment of the present invention；
Figure 13 is the two ways of the rate-matched of the embodiment of the present invention；
Figure 14 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram one of device；
Figure 15 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram two of device；
Figure 16 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram of system.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, with reference to the accompanying drawing to this hair The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present invention.
The technical solution of the embodiment of the present invention is applied to FlexE end-to-end link, is realized by controller to end-to-end chain The capacity of each node adjusts (i.e. calendar switching) in road, to realize the link capacity adjustment of service nondestructive.
Fig. 2 is the flow diagram one of the link capacity method of adjustment of the embodiment of the present invention, and the present embodiment is applied to control Device, as shown in Fig. 2, the link capacity method of adjustment the following steps are included:
Step 201: the service route based on chain road determines the corresponding adjusts path of the link, the adjusts path Indicate the adjustment sequence of each node in the link.
In the embodiment of the present invention, network provides a controller, how to carry out link capacity adjustment for decision.The control Device can be an independent controller, also be desirably integrated into network management function component.All network nodes of controller management (can be also simply referred to as node), the state of each node of real-time perception, such as each node capacity service condition (used capacity, Idle capacity), the port number of each node etc..When needing to carry out link capacity adjustment, according to wanting for this link adjustment It asks, calculates all affected nodes, then the adjustment sequence and adjustable strategies for meeting service nondestructive is provided.
In one embodiment, controller obtains link capacity adjustment instruction, and the link capacity adjustment instruction is for referring to Show and the former capacity of link is adjusted to target capacity.Here, former capacity is the current capacity of link, and target capacity needs for link The capacity to be adjusted to.
In the embodiment of the present invention, the capacity of link refers to the bandwidth of link, and in one embodiment, the capacity of link is chain The time slot on road.It should be understood that the bandwidth on same link is the same in the case that link is stablized.Such as: node 1, node 2, section Put 3 on the same link, then, node 1, node 2, node 3, the bandwidth corresponding to the chain road namely capacity are identical. Illustrated with time slot, the slot used between node be it is corresponding, such as node 1 sending side use slot1 and slot2, then The receiving side of node 2 also uses slot1 and slot2, and the sending side of node 2 uses slot5 and slot6, then the reception of node 3 Side also uses slot5 and slot6, no matter uses which kind of time slot, and the capacity of the node 1 of chain road, node 2 and node 3 is 2 Time slot.Significantly, since the same node is needed in sending side and the difference of time slot used by receiving side to sending side Data and receiving side data carry out data cross processing, with node 2 citing, slot1 and slot2 of the node 2 in receiving side Need to be mapped to the slot5 and slot6 of sending side.
In the embodiment of the present invention, based on the service route of chain road, the corresponding adjusts path of the link is determined.Such as chain It include such as lower node: node 1, node 2, node 3, node 4, node 5, service route are as follows: 4 → node of node, 1 → node 3 in road 2 → node of → node 5, then, adjustment sequence are as follows: 2 → node of node 4 → node, 1 → node, 3 → node 5.
Step 202: former capacity and target capacity to be adjusted based on the link determine the corresponding adjustment of the link Strategy.
In the embodiment of the present invention, if the original capacity is less than the target capacity, it is determined that the corresponding tune of the link Whole strategy is that capacity tunes up strategy；If the original capacity is greater than the target capacity, it is determined that the corresponding adjustment of the link Strategy is that capacity turns strategy down.
Such as: the capacity of link is adjusted to 4slot by 5slot, then, corresponding adjustable strategies are that capacity turns plan down Slightly.Again for example: the capacity of link is adjusted to 5slot by 4slot, then, corresponding adjustable strategies are that capacity tunes up strategy.
Step 203: the corresponding adjusts path of the link and the adjustable strategies being sent to each in the link Node.
In the embodiment of the present invention, the corresponding adjusts path of the link and the adjustable strategies are sent to the link In each node after, each node can determine the upper of opposite this node (hereafter referred to collectively as destination node) according to adjusts path One hop node and next-hop node, it should be appreciated that can also determine that this node is first node or tail node or middle node Point.Each node can be according to adjustable strategies, to realize corresponding adjustment operation.
Step 204: sending adjustment notification message to first node, be based on the adjustment to trigger each node in the link Path and the adjustable strategies carry out capacity adjustment, wherein the first node is determined based on the adjusts path.
In the embodiment of the present invention, if the adjustable strategies are that capacity tunes up strategy, each node in the link is obtained Residual capacity；Judge whether the residual capacity of each node in the link is more than or equal to the target capacity and the former capacity Difference；If the residual capacity of each node is all larger than the difference equal to the target capacity and the former capacity in the link Value then executes described the step of sending adjustment notification message to first node.If the adjustable strategies are that capacity turns strategy down, Described the step of sending adjustment notification message to first node can directly be executed；If the residual capacity of each node in the link There is the difference for being less than the target capacity and the former capacity, does not then execute adjustment operation.
In the embodiment of the present invention, the capacity tunes up each node that strategy is used to indicate in the link and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
When specific implementation, the CR message is the CR in FlexE, and the CA message is the CA in FlexE, the capacity tune Whole validation instructions are the C field (namely C bit in overhead field) in FlexE.
Specifically, if receiving adjustment notification message, down hop node sends CR；
If receiving CR, judge whether this node is tail node；If this node is not tail node, records CR and do not return Multiple status indication, down hop node send CR；If this node is tail node, upper hop node reverts back CA；
If receiving CA, judge whether this node is first node；If this node is not first node, down hop section Point sends C field data (C bit), and upper hop node reverts back CA simultaneously cancels the non-recoil state label of CR；If this node is First node, then down hop node sends C field data.
In the embodiment of the present invention, the capacity turns each node that strategy is used to indicate in the link down and executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
When specific implementation, the CR message is the CR in FlexE, and the CA message is CA, and the capacity adjusts the finger that comes into force Enable is C field (namely C bit in overhead field).
Specifically, if receiving adjustment notification message, down hop node sends CR；
If receiving CR, upper hop node sends CA, and judges whether this node is tail node；If this node is not It is tail node, then down hop node sends CR；
If receiving CA, down hop node sends C field data.
In the embodiment of the present invention, destination node refers to the node that capacity adjustment is being carried out in link, and destination node is claimed For this node, next-hop node refers to that the next-hop node of this node, upper hop node refer to the upper hop node of this node.
The technical solution of the embodiment of the present invention, since calendar different in overhead field can represent different time slots Configuring condition, thus, link capacity adjustment can be realized by switching calendar, such as: present node uses first Calendar (such as primary calendar), needs to be switched to the 2nd calendar (such as spare calendar).Controller is according to industry Be engaged in direction definition transfer sequence: first node, second node ..., nth node, secondary tail node, tail node；By notifying first node Clendar switching is carried out, hop-by-hop carries out the adjustment of capacity.
Fig. 3 is the flow diagram two of the link capacity method of adjustment of the embodiment of the present invention, and the present embodiment is applied to network Node, as shown in figure 3, the link capacity method of adjustment the following steps are included:
Step 301: obtaining adjustment information, the adjustment information includes the corresponding adjusts path of link and adjustable strategies.
Step 302: being based on the corresponding adjusts path of the link and the adjustable strategies, capacity is carried out to destination node Adjustment.
In one embodiment, the adjustable strategies are that capacity tunes up strategy；Correspondingly, described to be answered based on the link pair Adjusts path and the adjustable strategies, to destination node carry out capacity adjustment, comprising:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
When specific implementation, the CR message is the CR in FlexE, and the CA message is CA, and the capacity adjusts the finger that comes into force Enable is C field (namely C bit in overhead field).
Specifically, if receiving adjustment notification message, down hop node sends CR；
If receiving CR, judge whether this node is tail node；If this node is not tail node, records CR and do not return Multiple status indication, down hop node send CR；If this node is tail node, upper hop node reverts back CA；
If receiving CA, judge whether this node is first node；If this node is not first node, down hop section Point sends C field data, and upper hop node reverts back CA simultaneously cancels the non-recoil state label of CR；If this node is first node, Then down hop node sends C field data.
Here, if receiving CA message, and destination node is first node, then down hop node sends capacity adjustment life After effect instruction, adjustment success message is sent to controller.
In another embodiment, the adjustable strategies are that capacity turns strategy down；Correspondingly, described to be based on the link pair The adjusts path answered and the adjustable strategies carry out capacity adjustment to destination node, comprising:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
When specific implementation, the CR message is the CR in FlexE, and the CA message is CA, and the capacity adjusts the finger that comes into force Enable is C field (namely C bit in overhead field).
Specifically, if receiving adjustment notification message, down hop node sends CR；
If receiving CR, upper hop node sends CA, and judges whether this node is tail node；If this node is not It is tail node, then down hop node sends CR；
If receiving CA, down hop node sends C field data.
In above scheme, if receiving capacity adjustment validation instructions, and destination node is tail node, then sends out to controller Send adjustment success message.
For above two embodiment, if destination node is not first node and is not tail node, to destination node Receiving side business datum and sending side business datum carry out data cross processing.
In one embodiment, if the unidirectional time slot of the destination node adjusts successfully, and there are upstream time slot bandwidth and Downstream time slots bandwidth is inconsistent, and (i.e. this node receives C field data and not sent C field data or this node send C word Segment data and do not receive C field data), then counted in the business datum of business datum and sending side to the receiving side When according to cross processing, the business datum of business datum and sending side to the receiving side carries out rate-matched processing.
It is described that the business datum of the receiving side and the business datum of sending side are carried out at rate-matched in above scheme Reason, comprising:
The speed adjust of the business datum of the receiving side is extremely consistent with the rate of the business datum of the sending side, In, the rate of the business datum of the receiving side is less than the rate of the business datum of the sending side.
For the data packet of the business datum of the receiving side, it is inserted into free block inside the data packet, so that institute State the rate adaptation of the business datum of receiving side to the sending side business datum rate；Alternatively,
For the data packet of the business datum of the receiving side, it is inserted into free block between adjacent data packet, so that institute State the rate adaptation of the business datum of receiving side to the sending side business datum rate.
In the embodiment of the present invention, destination node refers to the node that capacity adjustment is being carried out in link, and destination node is claimed For this node, next-hop node refers to that the next-hop node of this node, upper hop node refer to the upper hop node of this node.
Fig. 4 is the flow diagram three of the link capacity method of adjustment of the embodiment of the present invention, as shown in figure 4, the link Capacity adjustment method the following steps are included:
Step 401: controller obtains the configuration information of each node.
Step 402: controller obtains link capacity adjustment instruction.If it is time slot is increased, step 403 is executed, if it is Time slot is deleted, step 417 is executed.
Step 403: judging whether the free timeslot of each node is enough；When no, step 404 is executed, when being, executes step 405。
Step 404: determining adjustment failure, and adjust failed message to controller report.
Step 405: according to service route, CR being initiated by first node；It is performed simultaneously step 406 and step 409.
Step 406: first node timer judges whether time-out；When no, step 407 is executed；When being, step 408 is executed.
Step 407: waiting the period to be specified, execute step 406.
Step 408: determining adjustment failure, and adjust failed message to controller report.
Step 409: receiving the node of CR, judge whether itself is tail node；When no, step 410 is executed；When being, execute Step 411.
Step 410: node continues down hop node and sends CR, executes step 409.
Step 411: tail node upper hop node reverts back CA.
Step 412: receiving the node of CA, down hop node reverts back C bit.
Step 413: judging to send whether the node of C bit is first node；When being, step 414 is executed；When no, step is executed Rapid 415.
Step 414: cancelling first node timer, determination adjusts successfully, and adjusts success message to controller report.
Step 415: receiving side business datum and sending side business datum carry out data cross and rate-matched.
Step 416: upper hop node sends CA, executes step 412.
Step 417: according to service route, CR being initiated by first node；It is performed simultaneously step 418 and step 421.
Step 418: tail node timer judges whether time-out, when no, executes step 419；When being, step 410 is executed.
Step 419: waiting the period to be specified, execute step 418.
Step 420: determining adjustment failure, and adjust failed message to controller report.
Step 421: receiving the node of CR, reply CA；It is performed simultaneously step 422 and step 425.
Step 422: judgement receives whether the node of CR is tail node, when being, executes step 423；When no, step is executed 424。
Step 423: node does not need down hop node and sends CR.
Step 424: node continues down hop node and sends CR, executes step 421.
Step 425: the node down hop node for receiving CA sends C bit.
Step 426: judging to receive whether the node of C bit is tail node, when being, execute step 427；When no, step is executed Rapid 428.
Step 427: cancelling tail node timer, determination adjusts successfully, and adjusts success message to controller report.
Step 428: receiving side business datum and sending side business datum carry out data cross and rate-matched.
In the technical solution of the embodiment of the present invention, the case where for increasing time slot (corresponding above-mentioned steps 403- step 416), CR is sent first since first node, after second node receives CR, if this node is not tail node, records the non-recoil state mark of CR Note continues to send CR to the next-hop node of oneself；Until nodes at ends receives CR, and after nodes at ends receives CR, judgement This node is tail node, replys CA, it is no longer necessary to which down hop node sends CR, secondary after the CA of loopback is received by secondary tail node Tail node starts to send C field (C bit) switching, and marks according to the non-recoil state of CR is recorded before oneself, continues to oneself Upper hop node reverts back CA, and cancel CR non-recoil state label, at this point, the time slot of secondary tail node and tail node is first completed to add Add；Successively for process until first node receives the CA of second node loopback, first node judges oneself for first node, then no longer need to Upper hop node loopback CA sends C field to second node, and end-to-end time slot completes addition；It is first after successively hop-by-hop completes process Node is returned the result to controller, and controller updates network node time slot use state.
In the technical solution of the embodiment of the present invention, CR is sent first since first node, second node is replied after receiving CR CA after first node receives the CA of second node reply, sends C field to second node, at this time first node and time first node when Gap is first completed to delete；Second node judges whether oneself is tail node, if non-tail node will continue to the next-hop to oneself Node sends CR；Successively process is until tail node receives the CR that time tail node is sent；Tail node judges oneself, for tail node, to reply CA and no longer need down hop node send CR, secondary tail node receive tail node transmission CA after, to tail node send C word Section, end-to-end time slot are completed to delete；After successively hop-by-hop completes process, tail node is returned to controller according to the C field received and is tied Fruit, controller update network node time slot use state.
In the above process, if each node is not performing properly the process of oneself, adjustment will be sent to controller and unsuccessfully disappeared Breath.
In the above scheme of the embodiment of the present invention, after this end node and peer node completion calendar switching, to end segment Point is if not the node of two ends, and the business datum that will do it receiving side and sending side is intersected, and the process of intersection needs to carry out Rate-matched either increases the process that time slot still deletes time slot, is all the business less from time slot during matched Data carry out rate-matched to the more business datum of time slot, in the case where no data block, are inserted into idle (idle) block, complete At the purpose of rate-matched, a kind of data structure is as shown in Figure 5.
Fig. 6 is the increased flow diagram of link capacity of the embodiment of the present invention, as shown in Figure 6, comprising the following steps:
Step 601: controller increases the notification message of time slot to first node transmission link.
Step 602: first node sends CR to next-hop node；It is performed simultaneously step 603 and step 606.
Step 603: first node timer judges whether time-out, when no, executes step 604, when being, executes step 605.
Step 604: waiting the period to be specified, execute step 603.
Step 605: determining adjustment failure, adjust failed message to controller report.
Step 606: node receives message, is judged according to the type of node.If first node thens follow the steps 607； If intermediate node thens follow the steps 610, if tail node, 614 are thened follow the steps.
Step 607: judging the type of message received, if CA, execute step 608.
Step 608: replying C bit to next-hop node.
Step 609: cancelling first node timer, determine and adjust successfully, adjust success message to controller report.
Step 610: judging the type of message received, if C bit, execute step 611；If CR is thened follow the steps 612；If CA thens follow the steps 613.
Step 611: receiving side and sending side carry out data cross and rate-matched, execute step 606.
Step 612: sending CR to next-hop node, execute step 606.
Step 613: sending CA and give upper hop node, send C bit to next-hop node, execute step 606.
Step 614: judging the type of message received, if CR, execute step 615；If C bit, then execute step Rapid 616.
Step 615: replying CA and give upper hop node, execute step 606.
Step 616: the adjustment of receiving side data service time slot.
Fig. 7 is the flow diagram of the link capacity reduction of the embodiment of the present invention, as shown in fig. 7, comprises following steps:
Step 701: controller deletes the notification message of time slot to first node transmission link.
Step 702: first node sends CR to next-hop node；It is performed simultaneously step 703 and step 706.
Step 703: tail node timer judges whether time-out, when no, executes step 704, when being, executes step 705.
Step 704: waiting the period to be specified, execute step 703.
Step 705: determining adjustment failure, adjust failed message to controller report.
Step 706: node receives message, is judged according to the type of node.If first node thens follow the steps 707； If intermediate node thens follow the steps 709, if tail node, 713 are thened follow the steps.
Step 707: judging the type of message received, if CA, execute step 708.
Step 708: replying C bit to next-hop node.
Step 709: judging the type of message received, if C bit, execute step 710；If CR is thened follow the steps 711；If CA thens follow the steps 712.
Step 710: receiving side and sending side carry out data cross and rate-matched.
Step 711: replying CA and give upper hop node, send CR to next-hop node, execute step 706.
Step 712: sending C bit to next-hop node, execute step 706.
Step 713: judging the type of message received, if CR, execute step 714；If C bit, then execute step Rapid 715.
Step 714: replying CA and give upper hop node, execute step 706.
Step 715: cancelling timer, determine and adjust successfully, adjust success message to controller report.
It is described further below in conjunction with technical solution of the concrete application example to the embodiment of the present invention.
Using example one
As shown in figure 8, network has tetra- nodes of PE1, P1, P2 and PE2.The data flow of link A is from left to right.Link A Bandwidth to configure originally be 3 slot, it is now desired to be adjusted to 4 slot.Since all nodes have enough time slots, adjustment Finally succeed.Detailed process is as follows:
1. controller can first calculate all impacted nodes to the chain time gap number of quasi- adjustment according to instruction, see end-to-end Whether there are remaining time slots in link, if the link remaining bandwidth calculated allows, starts link capacity adjustment.
2.PE1 sends CR to P1；After P1 is received, CR is sent to P2；After P2 is received, CR is sent to PE2；
3.PE2 replys CA to P2；After P2 is received, CA is replied to P1, while sending C bit to PE2；P1 receives P2 reply After CA, CA is replied to PE1, while sending C bit to P2；
After 4.P2 sends C bit to PE2, the sending side P2 business datum time slot is adjusted to 4 slot；Due to P2 receiving side industry Data of being engaged in or 3 slot, P2 receiving side business datum and sending side business datum carry out data cross, need rate-matched, Until receiving side business datum completes time slot adjustment (that is will be until receiving the C bit that P1 is sent)；
There are two types of concrete implementation schemes for 4.1 rate-matcheds, as shown in figure 13:
1) idle block is inserted between S block (the first block block of data packet) and T block (the tail block block of data packet), It that is: include that interpolation enters idle block in data, this scheme advantage is time delay minimum.
2) idle block is inserted between T block and S block, it may be assumed that idle block is inserted between data packet, this scheme advantage is several It is reference format according to format, transmitting-receiving node can be supported.
After 5.P1 sends C bit to P2, the sending side P1 business datum time slot is adjusted to 4 slot；Due to P1 receiving side industry Data of being engaged in or 3 slot, P1 receiving side business datum and sending side business datum carry out data cross, need rate-matched, Until receiving side business datum completes time slot adjustment (that is will be until receiving the C bit that PE1 is sent)；
There are two types of concrete implementation schemes for 5.1 rate-matcheds, as shown in figure 13:
1) idle block is inserted between S block and T block.
2) idle block is inserted between T block and S block.
6.PE1 sends C bit to P1；The sending side PE1 business datum time slot is adjusted to 4 slot；P1 receives side business number 4 slot are adjusted to according to time slot.
Using example two
As shown in figure 9, network has tetra- nodes of PE1, P1, P2 and PE2.The data flow of link A is from left to right.Link A Bandwidth to configure originally be 3 slot, it is now desired to be adjusted to 4 slot.Since P2 node does not have enough time slots, adjustment is most After fail.Detailed process is as follows:
1. controller can first calculate all impacted nodes to the chain time gap number of quasi- adjustment according to instruction, see end-to-end Whether remaining time slots are had in link, and the link remaining bandwidth of calculating does not allow, and directly terminates adjustment, adjusts last failure.
Using example three
As shown in Figure 10, network has tetra- nodes of PE1, P1, P2 and PE2.The data flow of link A is from left to right.Link A Bandwidth to configure originally be 3 slot, it is now desired to be adjusted to 4 slot.Since exception occurs in P1 node, CA is not replied, Cause PE1 not receive CA, adjusts last failure.Detailed process is as follows:
1. controller can first calculate all impacted nodes to the chain time gap number of quasi- adjustment according to instruction, see end-to-end Whether there are remaining time slots in link, if the link remaining bandwidth calculated allows, starts link capacity adjustment.
2.PE1 sends CR to P1；After P1 is received, CR is sent to P2；After P2 is received, CR is sent to PE2；
3. under normal circumstances, PE2 replys CA to P2；After P2 is received, CA is replied to P1；After P1 is received, CA is replied to PE1； Abnormal due to occurring, P1 node does not reply CA, so first node PE1 does not receive CA, when waiting one section after, it is first to save Point PE1 notification controller, adjustment failure.
4. the information of controller record " adjustment failure ".
Using example four
As shown in figure 11, network has tetra- nodes of PE1, P1, P2 and PE2.The data flow of link A is from left to right.Link A It is original configuration be 4 slot, it is now desired to be adjusted to 3 slot.The last success of adjustment.Detailed process is as follows:
1. controller can directly initiate link capacity adjustment according to instruction；
2.PE1 sends CR to P1；After P1 is received, CA is replied to PE1, while sending CR to P2；
After 3.P2 receives CR, CA is replied to P1, while sending CR to PE2；
After 4.PE2 receives CR, CA is replied to P2；
After 5.PE1 receives the CA of P1 transmission, C bit is sent to P1；The sending side PE1 business datum time slot is adjusted to 3 slot；
After 6.P1 receives the C bit of PE1 transmission, P1 receiving side business datum time slot is adjusted to 3 slot；Since P1 is sent Side business data or 4 slot, P1 receiving side business datum and sending side business datum carry out data cross, need rate Match, until sending side business datum completes time slot adjustment (that is will be until P1 sends C bit to P2)；
There are two types of concrete implementation schemes for 6.1 rate-matcheds, as shown in figure 13:
1) idle block is inserted between S block and T block.
2) idle block is inserted between T block and S block.
After 7.P1 receives the CA of P2 transmission, P1 sends C bit to P2；The sending side P1 business datum time slot is adjusted to 3 slot；
After 8.P2 receives the C bit of P1 transmission, P2 receiving side business datum is adjusted to 3 slot；Due to the sending side P2 industry Data of being engaged in or 4 slot, P2 receiving side business datum and sending side business datum carry out data cross, need rate-matched, Until sending side business datum completes time slot adjustment (that is to send C bit to PE2 until receiving P2)；
There are two types of concrete implementation schemes for 8.1 rate-matcheds, as shown in figure 13:
1) idle block is inserted between S block and T block.
2) idle block is inserted between T block and S block.
After 9.P2 receives the CA of PE2 transmission, P2 sends C bit to PE2；The sending side P2 business datum time slot is adjusted to 3 slot；
After 10.PE2 receives the C bit of P2 transmission, PE2 receiving side business datum is adjusted to 3 slot；
Using example five
As shown in figure 12, network has tetra- nodes of PE1, P1, P2 and PE2.The data flow of link A is from left to right.Link A It is original configuration be 4 slot, it is now desired to be adjusted to 3 slot.Due to P2 node occur it is abnormal, do not send C bit to PE2 causes to adjust last failure.Detailed process is as follows:
1. controller can directly initiate link capacity adjustment according to instruction；
2. subsequent step is consistent with upper one embodiment if it is normal condition；But there is exception, P2 node C field is not sent；Tail node is caused not receive C field finally；
3. tail node reports controller, adjustment failure.
4. the information of controller record " adjustment failure ".
Figure 14 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram one of device, as shown in figure 14, institute Stating device includes:
First determination unit 1401 determines the corresponding adjusts path of the link for the service route based on chain road, The adjusts path indicates the adjustment sequence of each node in the link；
Second determination unit 1402, for based on the link former capacity and target capacity to be adjusted, determine described in The corresponding adjustable strategies of link；
Transmission unit 1403, for the corresponding adjusts path of the link and the adjustable strategies to be sent to the chain Each node in road；
Trigger unit 1404, for sending adjustment notification message to first node, to trigger each node base in the link Capacity adjustment is carried out in the adjusts path and the adjustable strategies, wherein it is true that the first node is based on the adjusts path It is fixed.
In one embodiment, second determination unit 1402, if held for the former capacity less than the target Amount, it is determined that the corresponding adjustable strategies of the link are that capacity tunes up strategy；If the original capacity is greater than the target capacity, Then determine that the corresponding adjustable strategies of the link are that capacity turns strategy down.
In one embodiment, described device further include:
Acquiring unit 1405, for obtaining the residual capacity of each node in the link；
Judging unit 1406 holds for judging whether the residual capacity of each node in the link is more than or equal to the target The difference of amount and the former capacity；
The trigger unit 1404, if the residual capacity for each node in the link is all larger than equal to the target The difference of capacity and the former capacity then executes described the step of sending adjustment notification message to first node；If the link In the residual capacity of each node have the difference less than the target capacity and the former capacity, then do not execute adjustment operation.
In one embodiment, each node that the capacity tunes up that strategy is used to indicate in the link executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In one embodiment, each node that the capacity turns that strategy is used to indicate in the link down executes following behaviour Make:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
It will be appreciated by those skilled in the art that the realization function of each unit in the adjustment device of link capacity shown in Figure 14 It can refer to the associated description of aforementioned link capacity method of adjustment and understand.Link capacity shown in Figure 14 adjusts each list in device The function of member can be realized and running on the program on processor, can also be realized by specific logic circuit.
In addition, the embodiment of the invention also provides a kind of controller, the controller includes processor and memory, described Functional unit as shown in figure 14 is stored in memory, the processor can be realized the function of each functional unit.
Figure 15 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram two of device, as shown in figure 15, institute Stating device includes:
Acquiring unit 1501, for obtaining adjustment information, the adjustment information includes the corresponding adjusts path of link and tune Whole strategy；
Adjustment unit 1502, for being based on the corresponding adjusts path of the link and the adjustable strategies, to target section Point carries out capacity adjustment.
In one embodiment, the adjustable strategies are that capacity tunes up strategy；
The adjustment unit 1502, is used for: if receiving adjustment notification message, down hop node sends CR and disappears Breath；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, remember The non-recoil state label of CR message is recorded, down hop node sends CR message；If destination node is tail node, upper hop section Point replys CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to Next-hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state mark of CR message Note；If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In one embodiment, described device further include:
Notification unit 1503, if receiving CA message for the adjustment unit, and destination node is first node, then when After the adjustment unit down hop node sends capacity adjustment validation instructions, adjustment success message is sent to controller.
In one embodiment, the adjustable strategies are that capacity turns strategy down；
The adjustment unit 1502, is used for: if receiving adjustment notification message, down hop node sends CR and disappears Breath；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；Such as Fruit destination node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
In one embodiment, described device further include:
Notification unit 1503, if receiving capacity adjustment validation instructions for the adjustment unit, and destination node is Tail node then sends adjustment success message to controller.
In one embodiment, described device further include:
Cross processing unit 1504, if not being first node for destination node and not being tail node, to destination node Receiving side business datum and sending side business datum carry out data cross processing.
In one embodiment, the cross processing unit 1504, if being also used to the unidirectional time slot tune of the destination node It is made into function, and there are upstream time slot bandwidth and downstream time slots bandwidth are inconsistent, then in the business datum and hair to the receiving side When the business datum of side being sent to carry out data cross processing, the business datum of business datum and sending side to the receiving side is carried out Rate-matched processing.
In one embodiment, the cross processing unit 1504, for by the rate of the business datum of the receiving side It adjusts to consistent with the rate of the business datum of the sending side, wherein the rate of the business datum of the receiving side is less than institute State the rate of the business datum of sending side.
In one embodiment, the cross processing unit 1504, the number for the business datum for the receiving side According to packet, it is inserted into free block inside the data packet, so that the rate adaptation of the business datum of the receiving side is to the hair Send the rate of the business datum of side；Alternatively, the data packet of the business datum for the receiving side, in interleaving for adjacent data packet Enter free block so that the rate adaptation of the business datum of the receiving side to the sending side business datum rate.
It will be appreciated by those skilled in the art that the realization function of each unit in link capacity adjustment device shown in figure 15 It can refer to the associated description of aforementioned link capacity method of adjustment and understand.Each list in link capacity adjustment device shown in figure 15 The function of member can be realized and running on the program on processor, can also be realized by specific logic circuit.
In addition, the embodiment of the invention also provides a kind of network node, the network node includes processor and memory, Functional unit as shown in figure 15 is stored in the memory, the processor can be realized the function of each functional unit.
Figure 16 is that the link capacity of the embodiment of the present invention adjusts the structure composition schematic diagram of system, as shown in figure 16, described It includes: controller 1601, at least one network node 1602 that link capacity, which adjusts system,.The controller 1601 and each net Network node 1602 connects, and has data channel according to service route foundation between each network node 1602；Wherein,
Controller 1601 determines the corresponding adjusts path of the link, the tune for the service route based on chain road The adjustment sequence of each node in link described in whole path representation；Former capacity and target capacity to be adjusted based on the link, Determine the corresponding adjustable strategies of the link；The corresponding adjusts path of the link and the adjustable strategies are sent to described Each node in link；Adjustment notification message is sent to first node, is based on the adjustment to trigger each node in the link Path and the adjustable strategies carry out capacity adjustment, wherein the first node is determined based on the adjusts path.
Network node 1602, for obtaining adjustment information, the adjustment information includes the corresponding adjusts path of link and tune Whole strategy；Based on the corresponding adjusts path of the link and the adjustable strategies, capacity adjustment is carried out to destination node.
In one embodiment, the adjustable strategies are that capacity tunes up strategy；The network node 1602, if for connecing Adjustment notification message is received, then down hop node sends CR message；If receiving CR message, judge destination node whether be Tail node；If destination node is not tail node, the non-recoil state label of CR message is recorded, down hop node sends CR and disappears Breath；If destination node is tail node, upper hop node reverts back CA message；If receiving CA message, destination node is judged It whether is first node；If destination node is not first node, down hop node sends capacity and adjusts validation instructions, upward one Hop node replys CA message and cancels the non-recoil state label of CR message；If destination node is first node, down hop section Point sends capacity and adjusts validation instructions；Wherein, it is corresponding to be based on the link for the next-hop node and the upper hop node Adjusts path determines.
In another embodiment, the adjustable strategies are that capacity turns strategy down；The network node 1602, if for Adjustment notification message is received, then down hop node sends CR message；If receiving CR message, upper hop node is sent CA message, and judge whether destination node is tail node；If destination node is not tail node, down hop node sends CR Message；If receiving CA message, down hop node sends capacity and adjusts validation instructions；Wherein, the next-hop node and The upper hop node is determined based on the corresponding adjusts path of the link.
It will be understood by those skilled in the art that the function of controller 1601 and each network node 1602 in the present embodiment can join Understood according to the associated description of aforementioned link capacity method of adjustment.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Correspondingly, the embodiment of the present invention also provides a kind of storage medium, is stored thereon with computer program, the computer The step in above-mentioned link capacity method of adjustment is realized when program is executed by processor.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (32)

1. a kind of link capacity method of adjustment, which is characterized in that the described method includes:
Based on the service route of chain road, determine that the corresponding adjusts path of the link, the adjusts path indicate the link In each node adjustment sequence；
Former capacity and target capacity to be adjusted based on the link, determine the corresponding adjustable strategies of the link；
Each node corresponding adjusts path of the link and the adjustable strategies being sent in the link；
Adjustment notification message is sent to first node, is based on the adjusts path and described to trigger each node in the link Adjustable strategies carry out capacity adjustment, wherein the first node is determined based on the adjusts path.
2. the method according to claim 1, wherein the former capacity and mesh to be adjusted based on the link Capacity is marked, determines the corresponding adjustable strategies of the link, comprising:
If the original capacity is less than the target capacity, it is determined that the corresponding adjustable strategies of the link are that capacity tunes up plan Slightly；
If the original capacity is greater than the target capacity, it is determined that the corresponding adjustable strategies of the link are that capacity turns plan down Slightly.
3. according to the method described in claim 2, it is characterized in that, if the adjustable strategies are that capacity tunes up strategy, institute State method further include:
Obtain the residual capacity of each node in the link；
Judge whether the residual capacity of each node in the link is more than or equal to the difference of the target capacity and the former capacity；
If the residual capacity of each node is all larger than the difference equal to the target capacity and the former capacity in the link, Execute described the step of sending adjustment notification message to first node；
If the residual capacity of each node has the difference less than the target capacity and the former capacity in the link, do not hold Row adjustment operation.
4. according to the method described in claim 2, it is characterized in that, the capacity tunes up tactful be used to indicate in the link Each node performs the following operations:
If receiving adjustment notification message, down hop node sends schedule switching request CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, CR is recorded The non-recoil state label of message, down hop node send CR message；If destination node is tail node, upper hop node is returned Multiple schedule switching confirmation CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to next Hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state label of CR message； If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
5. according to the method described in claim 2, it is characterized in that, the capacity turns tactful be used to indicate in the link down Each node performs the following operations:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；If mesh Marking node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
6. a kind of link capacity method of adjustment, which is characterized in that the described method includes:
Adjustment information is obtained, the adjustment information includes the corresponding adjusts path of link and adjustable strategies；
Based on the corresponding adjusts path of the link and the adjustable strategies, capacity adjustment is carried out to destination node.
7. according to the method described in claim 6, it is characterized in that, the adjustable strategies are that capacity tunes up strategy；
It is described to be based on the corresponding adjusts path of the link and the adjustable strategies, capacity adjustment, packet are carried out to destination node It includes:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, CR is recorded The non-recoil state label of message, down hop node send CR message；If destination node is tail node, upper hop node is returned Multiple CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to next Hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state label of CR message； If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
8. the method according to the description of claim 7 is characterized in that the method also includes:
If receiving CA message, and destination node is first node, then after down hop node sends capacity adjustment validation instructions, Adjustment success message is sent to controller.
9. according to the method described in claim 6, it is characterized in that, the adjustable strategies are that capacity turns strategy down；
It is described to be based on the corresponding adjusts path of the link and the adjustable strategies, capacity adjustment, packet are carried out to destination node It includes:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；If mesh Marking node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
10. according to the method described in claim 9, it is characterized in that, the method also includes:
If receiving capacity adjustment validation instructions, and destination node is tail node, then adjustment success message is sent to controller.
11. according to the described in any item methods of claim 7 to 10, which is characterized in that the method also includes:
If destination node is not first node and is not tail node, business datum and sending side to the receiving side of destination node Business datum carry out data cross processing.
12. according to the method for claim 11, which is characterized in that the method also includes:
If the unidirectional capacity of destination node adjusts successfully, and there are upstream capacity bandwidth and downstream capacity bandwidth are inconsistent, Then when the business datum of business datum and sending side to the receiving side carries out data cross processing, to the receiving side Business datum and the business datum of sending side carry out rate-matched processing.
13. according to the method for claim 12, which is characterized in that the business datum and sending side to the receiving side Business datum carry out rate-matched processing, comprising:
The speed adjust of the business datum of the receiving side is extremely consistent with the rate of the business datum of the sending side, wherein The rate of the business datum of the receiving side is less than the rate of the business datum of the sending side.
14. according to the method for claim 13, which is characterized in that the rate tune of the business datum by the receiving side It is whole extremely consistent with the rate of the business datum of the sending side, comprising:
For the data packet of the business datum of the receiving side, it is inserted into free block inside the data packet, so that described connect Receive side business datum rate adaptation to the sending side business datum rate；Alternatively,
For the data packet of the business datum of the receiving side, it is inserted into free block between adjacent data packet, so that described connect Receive side business datum rate adaptation to the sending side business datum rate.
15. a kind of link capacity adjusts device, which is characterized in that described device includes:
First determination unit determines the corresponding adjusts path of the link, the adjustment for the service route based on chain road The adjustment sequence of each node in link described in path representation；
Second determination unit, for based on the link former capacity and target capacity to be adjusted, determine that the link pair is answered Adjustable strategies；
Transmission unit, it is each in the link for the corresponding adjusts path of the link and the adjustable strategies to be sent to Node；
Trigger unit is based on the tune for sending adjustment notification message to first node to trigger each node in the link Whole path and the adjustable strategies carry out capacity adjustment, wherein the first node is determined based on the adjusts path.
16. device according to claim 15, which is characterized in that second determination unit, if for the former appearance Amount is less than the target capacity, it is determined that the corresponding adjustable strategies of the link are that capacity tunes up strategy；If the original capacity Greater than the target capacity, it is determined that the corresponding adjustable strategies of the link are that capacity turns strategy down.
17. device according to claim 16, which is characterized in that described device further include:
Acquiring unit, for obtaining the residual capacity of each node in the link；
Judging unit, for judge the residual capacity of each node in the link whether be more than or equal to the target capacity with it is described The difference of former capacity；
The trigger unit, if the residual capacity for each node in the link is all larger than equal to the target capacity and institute The difference of former capacity is stated, then executes described the step of sending adjustment notification message to first node；
If the residual capacity of each node has the difference less than the target capacity and the former capacity in the link, do not hold Row adjustment operation.
18. device according to claim 16, which is characterized in that the capacity tunes up strategy and is used to indicate in the link Each node perform the following operations:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, CR is recorded The non-recoil state label of message, down hop node send CR message；If destination node is tail node, upper hop node is returned Multiple CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to next Hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state label of CR message； If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
19. device according to claim 16, which is characterized in that the capacity is turned strategy down and is used to indicate in the link Each node perform the following operations:
If receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；If mesh Marking node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
20. a kind of link capacity adjusts device, which is characterized in that described device includes:
Acquiring unit, for obtaining adjustment information, the adjustment information includes the corresponding adjusts path of link and adjustable strategies；
Adjustment unit holds destination node for being based on the corresponding adjusts path of the link and the adjustable strategies Amount adjustment.
21. device according to claim 20, which is characterized in that the adjustable strategies are that capacity tunes up strategy；
The adjustment unit, is used for: if receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, judge whether destination node is tail node；If destination node is not tail node, CR is recorded The non-recoil state label of message, down hop node send CR message；If destination node is tail node, upper hop node is returned Multiple CA message；
If receiving CA message, judge whether destination node is first node；If destination node is not first node, to next Hop node sends capacity and adjusts validation instructions, and upper hop node reverts back CA message simultaneously cancels the non-recoil state label of CR message； If destination node is first node, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
22. device according to claim 21, which is characterized in that described device further include:
Notification unit, if receiving CA message for the adjustment unit, and destination node is first node, then when the adjustment After unit down hop node sends capacity adjustment validation instructions, adjustment success message is sent to controller.
23. device according to claim 20, which is characterized in that the adjustable strategies are that capacity turns strategy down；
The adjustment unit, is used for: if receiving adjustment notification message, down hop node sends CR message；
If receiving CR message, upper hop node sends CA message, and judges whether destination node is tail node；If mesh Marking node is not tail node, then down hop node sends CR message；
If receiving CA message, down hop node sends capacity and adjusts validation instructions；
Wherein, the next-hop node and the upper hop node are determined based on the corresponding adjusts path of the link.
24. device according to claim 23, which is characterized in that described device further include:
Notification unit, if receiving capacity adjustment validation instructions for the adjustment unit, and destination node is tail node, then Adjustment success message is sent to controller.
25. according to the described in any item devices of claim 21 to 24, which is characterized in that described device further include:
Cross processing unit, if not being first node for destination node and not being tail node, to the receiving side of destination node Business datum and sending side business datum carry out data cross processing.
26. device according to claim 25, which is characterized in that the cross processing unit, if being also used to the mesh The mark unidirectional capacity of node adjusts successfully, and there are upstream capacity bandwidth and downstream capacity bandwidth are inconsistent, then to the reception When the business datum of side and the business datum of sending side carry out data cross processing, to the business datum and transmission of the receiving side The business datum of side carries out rate-matched processing.
27. device according to claim 26, which is characterized in that the cross processing unit is used for the receiving side Business datum speed adjust to consistent with the rate of the business datum of the sending side, wherein the business of the receiving side The rate of data is less than the rate of the business datum of the sending side.
28. device according to claim 27, which is characterized in that the cross processing unit, for for the receiving side The data packet of business datum is inserted into free block inside the data packet, so that the rate of the business datum of the receiving side It is fitted to the rate of the business datum of the sending side；Alternatively, the data packet of the business datum for the receiving side, adjacent Free block is inserted between data packet, so that business number of the rate adaptation of the business datum of the receiving side to the sending side According to rate.
29. a kind of controller, which is characterized in that the controller includes the described in any item link capacities of claim 15 to 19 Adjust device.
30. a kind of network node, which is characterized in that the network node includes the described in any item links of claim 20 to 28 Capacity regulating device.
31. a kind of link capacity adjusts system, which is characterized in that the link capacity adjustment system includes described in claim 29 Controller and at least two claims 30 described in network node, wherein
The controller is connect with each network node, has data logical according to service route foundation between each network node Road.
32. a kind of storage medium, is stored thereon with computer program, the computer program realizes right when being executed by processor It is required that described in any one of step or claim 6 to 14 in link capacity method of adjustment described in any one of 1 to 5 Link capacity method of adjustment in step.
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