CN106550291A - The transmission of resource allocation information, data distributing method and device - Google Patents
The transmission of resource allocation information, data distributing method and device Download PDFInfo
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Abstract
The invention provides a kind of transmission of resource allocation information, data distributing method and device, by the present invention, using determination resource allocation information, wherein, the resource allocation information be used to indicating in multicast network Optical Switch Node by the data duplication of the first electric Packet Switch Node transmission in multicast network into more than two parts, and by duplication after two parts of data above be sent respectively to the second electric Packet Switch Node of two or more in multicast network；The method that the resource allocation information is sent to into Optical Switch Node, the resource allocation information of multicast network is sent to into Optical Switch Node, indicate Optical Switch Node for the resource in multicast network is configured, in solving the problems, such as correlation technique, network multicast technology is realized and the waste of caused bandwidth resources in electric packet-switched layer, the characteristic of multicast, quick copy is natively supported using Optical Switch Node, the resource distribution for quickly finishing multicast network, the effect for avoiding bandwidth resources waste has been reached.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of transmission of resource allocation information, data distributing method and
Device.
Background technology
Optical burst ring net utilizes quick all-optical switching technique as a kind of, it is possible to achieve finer grain data traffic transmission and friendship
Change, with the low advantage of high bandwidth, high dynamic, low energy consumption, and system complexity, have a good application prospect.
Particularly under the fast-developing background of the information service with cloud computing as representative, in data center, data center and data
All there is a large amount of dynamic data transmissions and switching requirement, optical outburst switching loop network between center, between data center and user
Technology is widely regarded as being adapted to one of communication network technology of this kind of business of carrying.
Due to the bus type structure feature of optical burst ring net, which natively supports light layer signal multicast, such that it is able to reality
Now simple efficient data multicast.Exist in cloud calculation service and widely apply the operations such as layer data duplication/backup, just may be used
To be met by the multicast capability of network.Most typically ground, such as virtual machine (Virtual in the data center
Machine, referred to as VM) rapid deployment operation, which requires after user clicks on and submits resource request for utilization to, rapidly
Virtual machine image needed for massive duplication user, and these image files are distributed to into multiple stage physical host by network transmission
On, finally start these dummy machine systems and can independent operating, provide the user service.That is, this kind of business
It is required that network can support quick content to replicate and distribute, and multicasting technology exactly realizes that data passed to network are carried out again
The key foundation of system.
However, existing network multicast technology is all mainly at Internet protocol (Internet Protocol, referred to as IP)
Layer realization, i.e., realize the copy function of IP packets in the router of electric packet switch to complete Multicast operation, and
Do not utilize photosphere network multicast ability to realize the technical scheme of upper layer data duplication.This is main still due to traditional bottom
Transparent transmission relation between layer optical-fiber network and IP layers so that network cannot directly set up cross-layer multicast tree, and then can not
Cause certain bandwidth resources to waste with avoiding.
Fig. 1 is the schematic diagram for carrying out multicast service realization in correlation technique based on electric packet switching network, as shown in figure 1,
Data are passed through Optical Switch Node by the data of electric Packet Switch Node b, c, d request electricity Packet Switch Node a, node a
A, B are transmitted transparently to node b, after data receiver is preserved by node b, are replicated, and by the data after duplication
Electric Packet Switch Node c is transmitted transparently to by Optical Switch Node B, C, another data for replicating is exchanged through light
Node B, C, D are transmitted transparently to electric Packet Switch Node d.As shown in Figure 1, based on ip multicast or content distribution
The network operation mechanism of network, is reduced by way of replicating virtual machine image in IP layers (i.e. electric packet-switched layer)
The network resources waste that unicast brings, light layer network simply carry out transparent transmission to data, this for light layer network its exist it is larger
Expense.
Realize and the problem of caused bandwidth resources waste in electric packet-switched layer for network multicast technology in correlation technique,
Solution is proposed not yet at present.
The content of the invention
The invention provides a kind of transmission of resource allocation information, data distributing method and installation method and device, with least
In solving the problems, such as correlation technique, network multicast technology is realized and the waste of caused bandwidth resources in electric packet-switched layer.
According to an aspect of the invention, there is provided a kind of sending method of resource allocation information, including：Determine that resource is matched somebody with somebody
Confidence ceases, wherein, during the resource allocation information is used to indicate multicast network, Optical Switch Node will be from the multicast network
In the first electric Packet Switch Node transmission data duplication into more than two parts, and by duplication after two parts of data above difference
The the second electric Packet Switch Node of two or more being sent in the multicast network；The resource allocation information is sent to into institute
State Optical Switch Node.
Optionally it is determined that resource allocation information includes：Receiving carries out resource distribution in the multicast network for request
Measurement Request, wherein, at least one following information is carried in the Measurement Request：For sending the source electricity packet of data
The address of switching node, the purpose electricity address of Packet Switch Node for receiving data, bandwidth, data volume；According to institute
Described in the Information Pull carried in stating Measurement Request, the network topological information of multicast network determines the resource allocation information.
Alternatively, the resource allocation information at least includes following information：The Optical Switch Node receive the data when
Gap information, the Optical Switch Node send the gap information of two parts of data above after the duplication, the Optical Switch Node
The bandwidth information of transmission data.
Alternatively, the bandwidth information of the Optical Switch Node transmission data is determined as follows：It is determined that setting up described many
Broadcast the bandwidth required for network；The bandwidth according to determining determines the bandwidth information of the Optical Switch Node transmission data.
Optionally it is determined that the bandwidth set up required for the multicast network includes：Obtain the mesh that the Measurement Request includes
Electric Packet Switch Node number, and predetermined unitss carried out data transmission in the multicast network
According to bandwidth；Determine that the number of purpose electricity Packet Switch Node and the product of the unit data bandwidth are to set up described many
Broadcast the bandwidth required for network；The bandwidth according to determining determines the bandwidth information bag of the Optical Switch Node transmission data
Include：It is determined that required respectively bandwidth according to when at least two claims in the Measurement Request set up the multicast network；
At least two claims required respectively bandwidth is ranked up according to descending order；According to ranking results
Using preferentially hit algorithm determines the bandwidth information of the transmission data of the Optical Switch Node respectively first.
Alternatively, the biography that algorithm determines the Optical Switch Node respectively is preferentially being hit using described in first according to ranking results
After the bandwidth information of transmission of data, also include：Distribute the Optical Switch Node of the determination for the Optical Switch Node
The corresponding bandwidth of bandwidth information of transmission data；When distribution failure, the unit data bandwidth is adjusted.
According to another aspect of the present invention, a kind of data distributing method is additionally provided, including：Receive network centralized Control
The resource allocation information that device sends；According to the resource allocation information by the first electric packet switch section in multicast network
Point transmission data duplication into more than two parts, and by duplication after two parts of data above be sent respectively in the multicast network
The electric Packet Switch Node of two or more second.
According to a further aspect of the invention, a kind of dispensing device of resource allocation information is additionally provided, including：Determine mould
Block, for determining resource allocation information, wherein, the resource allocation information is used to indicate Optical Switch Node in multicast network
By the data duplication of the first electric Packet Switch Node transmission in the multicast network into more than two parts, and after replicating
Two parts of data above be sent respectively to the electric Packet Switch Node of the two or more second in the multicast network；Sending module,
For the resource allocation information is sent to the Optical Switch Node.
Alternatively, the determining module includes：Receiving submodule, enters for request in the multicast network for receiving
The Measurement Request of row resource distribution, wherein, at least one following information is carried in the Measurement Request：For sending number
According to the address of source electricity Packet Switch Node, the purpose electricity address of Packet Switch Node for receiving data, bandwidth, number
According to amount；Determination sub-module, for the network topology of the multicast network according to the Information Pull carried in the Measurement Request
Information determines the resource allocation information.
Alternatively, the resource allocation information at least includes following information：The Optical Switch Node receive the data when
Gap information, the Optical Switch Node send the gap information of two parts of data above after the duplication, the Optical Switch Node
The bandwidth information of transmission data.
Alternatively, the determination sub-module includes：First determining unit, for it is determined that in the resource allocation information
During the bandwidth information of Optical Switch Node transmission data, it is determined that the bandwidth set up required for the multicast network；Second
Determining unit, for the bandwidth information for determining the Optical Switch Node transmission data according to the bandwidth for determining.
Alternatively, the first determining unit includes：Subelement is obtained, for obtaining the purpose electricity that the Measurement Request includes
The number of Packet Switch Node, and the predetermined unit data bandwidth carried out data transmission in the multicast network；
First determination subelement, for determining the number of the purpose electricity Packet Switch Node and the product of the unit data bandwidth
To set up the bandwidth required for the multicast network；Second determining unit includes：Second determination subelement, for determining root
Bandwidth when setting up the multicast network according at least two claims in the Measurement Request required for difference；Sequence is single
Unit, at least two claims required respectively bandwidth is ranked up according to descending order；3rd
Determination subelement, preferentially hit first the biography that algorithm determines the Optical Switch Node respectively for utilizing according to ranking results
The bandwidth information of transmission of data.
Alternatively, the second determining unit also includes：Distribution subelement, for excellent first using described according to ranking results
After first hit algorithm determines the bandwidth information of transmission data of the Optical Switch Node respectively, it is the Optical Switch Node point
The corresponding bandwidth of bandwidth information of the transmission data of the Optical Switch Node with the determination；Adjustment subelement, for working as
During distribution failure, the unit data bandwidth is adjusted.
According to a further aspect of the invention, a kind of data delivery device is additionally provided, including：Receiver module, for connecing
Receive the resource allocation information that network Centralized Controller sends；Replication module, for will be from according to the resource allocation information
The data duplication of the first electric Packet Switch Node transmission in multicast network into more than two parts, and by duplication after more than two parts
Data are sent respectively to the second electric Packet Switch Node of two or more in the multicast network.
By the present invention, using determination resource allocation information, wherein, the resource allocation information is used to indicate multicast network
Middle Optical Switch Node by the data duplication of the first electric Packet Switch Node transmission in the multicast network into two parts with
On, and by duplication after two parts of data above be sent respectively to the electric packet switch of the two or more second in the multicast network
Node；The method that the resource allocation information is sent to into the Optical Switch Node, by the resource allocation information of multicast network
Optical Switch Node is sent to, indicates that Optical Switch Node, for the resource in multicast network is configured, solves correlation technique
Middle network multicast technology is realized and the problem of caused bandwidth resources waste in electric packet-switched layer, using Optical Switch Node day
The characteristic of multicast, quick copy so is supported, has been reached and has been quickly finished the resource distribution of multicast network, avoids band
The effect of the wide wasting of resources.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram for carrying out multicast service realization in correlation technique based on electric packet switching network；
Fig. 2 is the flow chart of the sending method of resource allocation information according to embodiments of the present invention；
Fig. 3 is the flow chart of data distributing method according to embodiments of the present invention；
Fig. 4 is the structured flowchart of the dispensing device of resource allocation information according to embodiments of the present invention；
Fig. 5 be resource allocation information according to embodiments of the present invention dispensing device in determining module 42 structured flowchart；
Fig. 6 be resource allocation information according to embodiments of the present invention dispensing device in determination sub-module 54 structured flowchart；
Fig. 7 be resource allocation information according to embodiments of the present invention dispensing device in the first determining unit 62 and second it is true
The structured flowchart of order unit 64；
Fig. 8 be resource allocation information according to embodiments of the present invention dispensing device in the second determining unit 64 structural frames
Figure；
Fig. 9 is the structured flowchart of data delivery device according to embodiments of the present invention；
Figure 10 is the flow chart of the implementation method of the multicast based on optical burst ring net implemented according to the present invention；
Figure 11 is the functional block diagram of the networking Centralized Controller implemented according to the present invention；
Figure 12 is according to embodiments of the present invention to realize schematic diagram based on the multicast of optical burst ring net；
Figure 13 is the operating mechanism schematic diagram based on optical burst ring net according to embodiments of the present invention；
Figure 14 is that multicast network according to embodiments of the present invention sets up request and resource allocation information schematic diagram；
Figure 15 is the resource allocation algorithm flow chart based on random initial hit.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, " second "
Etc. being for distinguishing similar object, without for describing specific order or precedence.
A kind of sending method of resource allocation information is provided in the present embodiment, and Fig. 2 is money according to embodiments of the present invention
The flow chart of the sending method of source configuration information, as shown in Fig. 2 the flow process comprises the steps：
Step S202, determines resource allocation information, wherein, during the resource allocation information is used to indicate multicast network, light is handed over
Node is changed by the data duplication of the first electric Packet Switch Node transmission in multicast network into more than two parts, and will be replicated
Two parts of data above afterwards are sent respectively to the second electric Packet Switch Node of two or more in multicast network；
The resource allocation information is sent to Optical Switch Node by step S204.
By above-mentioned steps, the resource allocation information of multicast network is sent to into Optical Switch Node, indicates Optical Switch Node pair
Resource in multicast network is configured, solve in correlation technique network multicast technology realize in electric packet-switched layer and
The problem that caused bandwidth resources are wasted, natively supports the characteristic of multicast, quick copy using Optical Switch Node,
The resource distribution for quickly finishing multicast network, the effect for avoiding bandwidth resources waste are reached.
In step S202, determine that resource allocation information there are various implementation methods, in an optional embodiment, can be with
It is achieved by the steps of：Receive carries out the Measurement Request of resource distribution in multicast network for request, wherein, this is more
At least one following information is carried in broadcasting request：For sending the address of the source electricity Packet Switch Node of data, for connecing
The address of the purpose electricity Packet Switch Node of receipts data, bandwidth, data volume；According to the Information Pull carried in Measurement Request
The network topological information of multicast network determines resource allocation information.In the alternative embodiment, please according to the multicast for receiving
The address of the source electricity Packet Switch Node and purpose electricity Packet Switch Node of middle carrying is asked, based on the topology information of existing network,
The topology information of the multicast network for meeting the Measurement Request can be obtained, such that it is able to obtain the topology letter in the multicast network
In the multicast path that breath determines, comprising optical-fiber network switching node number, further according to the bandwidth carried in Measurement Request and
Data volume, it may be determined that the resource allocation information of each optical-fiber network switching node in multicast path.
In an optional embodiment, in the resource allocation information determined in step S202, at least including following information：
The gap information of Optical Switch Node receiving data, Optical Switch Node send two parts of data above after replicating gap information,
The bandwidth information of Optical Switch Node transmission data.In the alternative embodiment, each Optical Switch Node can be according to configuration information
The gap information of middle receiving data, the gap information for sending more than two parts after replicating, the bandwidth information of transmission data, really
Determine the amount of bandwidth of transmission data, and which time slot to carry out the reception of data at, which time slot the transmission of data is carried out at,
The data of more than two parts after the duplication of transmission will be sent to which optical-fiber network switching node and/or electric switching node, will
Data realize the data transfer of multicast network after Optical Switch Node is replicated, quickly.
In an optional embodiment, the bandwidth information of the Optical Switch Node transmission data in configuration information can pass through
Following manner determines：It is determined that the bandwidth set up required for multicast network；Bandwidth according to determining determines that Optical Switch Node is transmitted
The bandwidth information of data, such that it is able to meet multicast network to a certain extent for the demand of bandwidth, coordinates multicast network
The time of middle bandwidth and Optical Switch Node, the relation of wavelength.
It is determined that the bandwidth set up required for multicast network there are various implementations, for example, Optical Switch Node and light can be handed over
The maximum bandwidth that switching network can be carried, as the bandwidth set up required for multicast network, in an optional embodiment,
It is determined that the bandwidth set up required for multicast network can include：Obtain the purpose electricity Packet Switch Node that Measurement Request includes
Number, and the predetermined unit data bandwidth carried out data transmission in multicast network；Determine purpose electricity packet
The number of switching node is that the bandwidth required for multicast network is stated in foundation with the product of unit data bandwidth；Such that it is able to basis
The information carried in Measurement Request, it is determined that setting up the bandwidth being actually needed in multicast network, saves Optical Switch Node and light
Exchange network resource.Additionally, determining that the bandwidth information of Optical Switch Node transmission data also has various realities according to the bandwidth for determining
Existing mode, for example, can set up the practically necessary bandwidth of multicast network according to what is determined, be each Optical Switch Node all
Distribute the bandwidth of the practically necessary size.In the alternative embodiment, determine that Optical Switch Node is passed according to the bandwidth for determining
The bandwidth information of transmission of data may also take on following manner realization：It is determined that being built according at least two claims in Measurement Request
Bandwidth required respectively during vertical multicast network；By the bandwidth required at least two claims according to descending order
It is ranked up；According to ranking results using preferentially hit algorithm determines the bandwidth of the transmission data of Optical Switch Node respectively first
Information.Such that it is able to the size of the bandwidth according to needed for each claims in Measurement Request, bandwidth is carried out to Optical Switch Node
Distribution, while the bandwidth demand of each claims is met, using the time it is most short preferentially hit algorithm first, significantly
The time configured by each Optical Switch Node is shortened, the efficiency for obtaining resource allocation information is improve.Wherein,
It can be using certain search algorithm, such as binary chop algorithm, sequential search algorithm, y-bend preferentially to hit algorithm first
Tree finding algorithm, index search algorithm, location Hash lookup algorithm of turning up the soil, slide fastener method Hash lookup algorithm etc., will inquire
First qualified result, as the result for meeting this time inquiry, terminate inquiry.
In an optional embodiment, light exchange section is respectively being determined using algorithm is preferentially hit first according to ranking results
After the bandwidth information of the transmission data of point, also include：Distribute the transmission number of the Optical Switch Node for determining for Optical Switch Node
According to the corresponding bandwidth of bandwidth information；When distribution failure, the unit data bandwidth is adjusted.Due to hardware configuration and people
For reasons such as settings, the bandwidth carried out data transmission in multicast network arbitrarily can not be configured, in presence distribution failure
In the case of, need according to pre-defined rule (for example, maximum less than optical switching network to carry bandwidth etc.), to unit data band
Width is adjusted, so that the unit data bandwidth after adjustment meets pre-defined rule, after in Optical Switch Node according to adjustment
Unit data bandwidth carry out resource distribution.
The executive agent of above-described embodiment can be network Centralized Controller (or server side).
A kind of data distributing method is embodiments provided, Fig. 3 is data distributing method according to embodiments of the present invention
Flow chart, as shown in figure 3, the flow process comprises the steps：
Step S302：Receive the resource allocation information that network Centralized Controller sends；
Step S304：According to the number that the first electric Packet Switch Node in multicast network is transmitted by resource allocation information
According to being copied into more than two parts, and by duplication after two parts of data above be sent respectively to the two or more second in multicast network
Electric Packet Switch Node.
Wherein, perform aforesaid operations can be Optical Switch Node, and by above-mentioned steps, Optical Switch Node can be according to net
The resource allocation information that network Centralized Controller sends, carries out resource distribution, in Optical Switch Node for the number in multicast network
According to being replicated and distributed, multicast, data duplication low energy consumption, low time delay are natively supported using Optical Switch Node
Advantage, solves that network multicast technology in correlation technique is realized in electric packet-switched layer and caused bandwidth resources are wasted asks
Topic, has reached the resource distribution for quickly finishing multicast network, the effect for avoiding bandwidth resources waste.
Through the above description of the embodiments, those skilled in the art is can be understood that according to above-described embodiment
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
There is the part that technology contributes embody in the form of software product, the computer software product is stored in one
In storage medium (such as ROM/RAM, magnetic disc, CD), use so that a station terminal equipment (can including some instructions
Being mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.
The dispensing device and data delivery device of a kind of resource allocation information are additionally provided in the present embodiment, two kinds of devices
For realizing above-described embodiment and preferred implementation, repeating no more for explanation had been carried out.As used below,
Term " module " can realize the combination of the software and/or hardware of predetermined function.Although the dress described by following examples
Put preferably with software realizing, but hardware, or the realization of the combination of software and hardware is also what is may and be contemplated.
Fig. 4 is the structured flowchart of the dispensing device of resource allocation information according to embodiments of the present invention, as shown in figure 4, should
Device includes determining module 42 and sending module 44, and below the device is illustrated.
Determining module 42, for determining resource allocation information, wherein, during the resource allocation information is used to indicate multicast network
The data duplication that the first electric Packet Switch Node in multicast network is transmitted by Optical Switch Node is into more than two parts, and incites somebody to action
Two parts of data above after duplication are sent respectively to the second electric Packet Switch Node of two or more in multicast network；Send mould
Block 44, is connected to above-mentioned determining module 42, for resource allocation information is sent to Optical Switch Node.
Fig. 5 be resource allocation information according to embodiments of the present invention dispensing device in determining module 42 structured flowchart,
As shown in figure 5, the determining module 42 includes receiving submodule 52 and determination sub-module 54, below to the determining module
42 illustrate.
Receiving submodule 52, for receiving the Measurement Request for carrying out resource distribution for request in multicast network, wherein,
At least one following information is carried in the Measurement Request：For sending the address of the source electricity Packet Switch Node of data, using
In the address of the purpose electricity Packet Switch Node of receiving data, bandwidth, data volume；Determination sub-module 54, is connected to above-mentioned
Receiving submodule 52, for determining resource according to the network topological information of the Information Pull multicast network carried in Measurement Request
Configuration information.
Resource allocation information in above-described embodiment at least includes following information：The gap information of Optical Switch Node receiving data,
Optical Switch Node sends the gap information of two parts of data above after replicating, the bandwidth information of Optical Switch Node transmission data.
Fig. 6 be resource allocation information according to embodiments of the present invention dispensing device in determination sub-module 54 structured flowchart,
As shown in fig. 6, the determination sub-module 54 includes the first determining unit 62 and the second determining unit 64, below to the determination
Submodule 54 is illustrated.
First determining unit 62, for it is determined that the bandwidth information of Optical Switch Node transmission data in resource allocation information
During, it is determined that the bandwidth set up required for multicast network；Second determining unit 64, is connected to the first determining unit 62,
For the bandwidth information for determining Optical Switch Node transmission data according to the bandwidth for determining.
Fig. 7 be resource allocation information according to embodiments of the present invention dispensing device in the first determining unit 62 and second it is true
The structured flowchart of order unit 64, as shown in fig. 7, first determining unit 62 includes that acquisition subelement 72 and first is true
Stator unit 74, second determining unit 64 include the second determination subelement 76, sequence subelement 78 and the 3rd determination
Subelement 710, is illustrated to first determination subelement 62 and the second determination subelement 64 below.
First determining unit 62 includes：Subelement 72 is obtained, is handed over for obtaining the purpose electricity packet that Measurement Request includes
The number of node is changed, and the predetermined unit data bandwidth carried out data transmission in multicast network；First determines
Subelement 74, is connected to above-mentioned acquisition subelement 72, for determining the number and unitss of purpose electricity Packet Switch Node
It is the bandwidth set up required for multicast network according to the product of bandwidth；
Second determining unit 64 includes：Second determination subelement 76, is connected to above-mentioned first determination subelement 74, is used for
It is determined that required respectively bandwidth according to when at least two claims in Measurement Request set up multicast network；Sequence subelement
78, above-mentioned second determination subelement 76 is connected to, for the bandwidth required at least two claims are distinguished according to by big
It is ranked up to little order；3rd determination subelement 710, is connected to above-mentioned sequence subelement 78, for according to sequence
As a result using preferentially hit algorithm determines the bandwidth information of the transmission data of Optical Switch Node respectively first.
Fig. 8 be resource allocation information according to embodiments of the present invention dispensing device in the second determining unit 64 structural frames
Figure, as shown in fig. 7, second determining unit 64 is in addition to including all subelements shown in Fig. 7, also including point
With subelement 82 and adjustment subelement 84, below second determining unit 64 is illustrated.
Distribution subelement 82, is connected to above-mentioned 3rd determination subelement 710, for utilizing excellent first according to ranking results
After first hit algorithm determines the bandwidth information of transmission data of Optical Switch Node respectively, it is that Optical Switch Node distribution determines
The corresponding bandwidth of bandwidth information of the transmission data of Optical Switch Node；Adjustment subelement 84, is connected to above-mentioned distribution subelement
82, for when distribution fails, adjusting unit data bandwidth.
The dispensing device and preferred embodiment of above-mentioned resource allocation information, can be applied to network centralized Control or server
In.
A kind of data delivery device is embodiments provided, Fig. 9 is data delivery device according to embodiments of the present invention
Structured flowchart, as shown in figure 9, the data delivery device includes receiver module 92 and replication module 94, below to this
Device is illustrated.
Receiver module 92, for receiving the resource allocation information of network Centralized Controller transmission；Replication module 94, connection
In above-mentioned receiver module 92, for the first electric Packet Switch Node in multicast network being passed according to resource allocation information
The data duplication sent into more than two parts, and by duplication after two parts of data above be sent respectively to two in multicast network with
Upper second electric Packet Switch Node.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module distinguishes position
In multiple processors.
Transmission, data distributing method with reference to environment is embodied as, to the resource allocation information in the embodiment of the present invention
And device is illustrated.
Due to the transparent transmission relation between traditional bottom optical-fiber network and IP layers (i.e. electric packet-switched layer) so that net
Network cannot directly set up cross-layer multicast tree, be merely able to the duplication of the data resource of multicast network is completed in IP layers, and then not
Certain bandwidth resources can be caused with avoiding to waste.This problem is solved, except developing new data plane protocol system
Fundamentally solve the problems, such as that interlayer multicast information is adapted to, can also be by introducing specific cross-layer Unified Control Plane function
To realize dynamic cross-layer multicast configuration.The embodiment of the present invention is that emphasis is conceived to the latter, it is proposed that towards in such as cloud computing
Optical-fiber network and the upper layer application of the multicast service demands such as virtual machine clone be uniformly coordinated the control plane function module of scheduling and
Operating process.
Especially, it is contemplated that optical burst ring net this newer networking technology, how which realizes conflict free full light burst packets
Inherently one key problem in the open discussion stage of scheduling, and the conflict free full light based on optical burst ring net is prominent
Give out a contract for a project scheduling problem, consider further that the bandwidth scheduling algorithm of multicast service, then more particularity.Due to optical exchange network network layers without
Method carries out the restriction of data buffer storage, and the data resource scheduling in optical exchange network network layers needs to solve with not homologous, different mesh
Or between how homologous many purposes, Microsecond grade multicast optical signal, the how reasonable distribution in two dimensions of time and wavelength
Problem, with reach avoid conflict while, as fair as possible, maximized utilization network total bandwidth resource.And phase
Than in the optical burst ring net bandwidth allocation algorithm for being not related to multicast, when the embodiment of the present invention considers that multicast resource distributes, it is allowed to
The presence of multicast, increased the complexity of resource allocation algorithm.
Summarize, the embodiment of the present invention can solve the problem that following technical problem：One, it is to meet application-oriented data duplication need
The optical burst ring net multicast asked, needs to solve the method flow of each layer cooperative scheduling control of network based on Unified Control Plane
Problem；Two, multicast bandwidth allocation algorithm is the core link in control plane function, therefore is also needed for optical burst ring net
Unique physical, solve the problems, such as multicast bandwidth allocation algorithm design.
First, for above-mentioned technical problem one, the present invention is implemented there is provided a kind of realization of the multicast based on optical burst ring net
Method (sending method of resource allocation information i.e. in above-described embodiment), Figure 10 are dashed forward based on light according to what the present invention was implemented
The flow chart of the implementation method of the multicast of hair ring net, the method are mainly included the following steps that：
Step S1002, network Centralized Controller receive multicast network and set up solicited message；
Step S1004, network Centralized Controller are calculated using the distribution of photosphere multicast resource according to existing network topological information
Method obtains optical network resource configuration information；
Step S1006, network resource controller pass through southbound interface (such as open flows OpenFlow application programming interfaces
The all and Optical Switch Node of (Application Program Interface, referred to as API) to multicast on road issues money
Source configuration signal；
Step S1008, after completing multicast network configuration, network Centralized Controller sends to data center controller and confirms
Character (Acknowledgement, referred to as ACK) signal.
Based on the implementation method of the above-mentioned multicast based on optical burst ring net, the embodiment of the present invention additionally provides a kind of network and concentrates
Controller, Figure 11 are the functional block diagrams of the networking Centralized Controller implemented according to the present invention, as shown in figure 11, should
Network Centralized Controller includes request receiving module 112 (with above-mentioned receiving submodule 52), host process module 114, IP
Network and optical-fiber network connection status storehouse 116, multicast resource allocation algorithm module 118 (with above-mentioned determination sub-module 54)
And protocol adaptation module 1110 (with above-mentioned sending module 44), below the network Centralized Controller is illustrated.
Request receiving module 112：The network sent for monitored data master controller sets up solicited message.Host process mould
Block 114：It is connected to request receiving module 112, IP network and the distribution of optical-fiber network connection status storehouse 116, multicast resource is calculated
Method module 118 and protocol adaptation module 1110, for inquiring about IP network and optical-fiber network status information, and the knot that will be inquired about
Fruit is set up solicited message with multicast network and is sent to multicast resource allocation algorithm module 118.Meanwhile, receive multicast resource point
Operation result with algoritic module 118, and result is carried out into information format forwarding by protocol adaptation module 1110, with
The Optical Switch Node of configuration bottom, while updating IP network and optical-fiber network connection status storehouse 116.IP network is connected with optical-fiber network
Connect state repository 116：Host process module 114 is connected to, for recording node, the bandwidth letter of existing IP network and optical-fiber network
Breath, and conventional network resources occupied information etc..Multicast resource allocation algorithm module 118：Host process module 114 is connected to,
For the multicast resource allocation algorithm based on certain optimization target such as (time is most short, bandwidth most has, fairness), algorithm
The multicast network vector set up for request is input into, algorithm is output as bandwidth map of the multicast network along each switching node on road.
Protocol adaptation module 1110：Host process module 114 is connected to, for the point configuration information for issuing host process module 114
It is adapted to the discernible information format of node (for example, OpenFlow information formats).
Secondly, for above-mentioned technical problem two, the present invention is implemented there is provided a kind of bandwidth cutting based on photosphere multicast
Initial hit resource allocation algorithm, belongs to when carrying out in multicast resource allocation algorithm in multicast resource allocation algorithm module 118
Between most short optimization a kind of algorithm, can be directed to optical burst ring net unique physical, solve multicast bandwidth allocation algorithm
The problem of design.Should be included based on the main contents of the initial hit resource allocation algorithm of the bandwidth cutting of photosphere multicast：
First, all claims are sorted according to bandwidth on demand size, wherein Measurement Request bandwidth is taken advantage of equal to destination node number
With bandwidth.Then to all claims, bandwidth allocation is carried out according to algorithm is preferentially hit first.Cannot distribute when existing
Claims then reduce bandwidth cutting coefficient, then to all claims, carrying out bandwidth allocation according to algorithm is preferentially hit first.
Until all claims are assigned, complete bandwidth allocation map is finally obtained.Wherein, preferentially hit algorithm first to refer to
Be that using certain search algorithm, for example binary chop algorithm, sequential search algorithm, binary tree search algorithm, index are looked into
Algorithm, location Hash lookup algorithm of turning up the soil, slide fastener method Hash lookup algorithm etc. are looked for, it is qualified by inquire first
As a result, as the result for meeting this time inquiry, terminate inquiry.
By the implementation method of the multicast based on optical burst ring net of the embodiments of the present invention, network Centralized Controller and base
In the initial hit resource allocation algorithm of the bandwidth cutting of photosphere multicast, can realize in data center ring-like many based on light
The virtual machine clone for broadcasting, can avoid first replicating virtual machine by the embodiment of the present invention and transmit again, or be based on ip multicast
Virtual machine clone caused by network resources waste, while make full use of optical-fiber network low energy consumption, the big bandwidth of low time delay it is excellent
Gesture, can be with the quick green deployment of virtual machine.
To make the technical method and technological merit of the present invention clearer, below in conjunction with the accompanying drawing pair being embodied as under environment
Technical solution of the present invention is described in further detail.
This is embodied as in environment, mainly includes network Centralized Controller, the electric mould such as Packet Switch Node and Optical Switch Node
Block.Wherein network Centralized Controller, main to receive to set up request, feedback net from the network of data center controller transmission
Network sets up situation information, sends connection configuration-direct to node by OpenFlow agreements；Electric packet switch is (such as Figure 12
In node a-d) with Optical Switch Node (such as the node A-D in Figure 12) complete data forwarding function, wherein electricity exchange
Node is interconnected with Optical Switch Node, and light is exchanged and interconnected by looped network.
Figure 12 be it is according to embodiments of the present invention schematic diagram is realized based on the multicast of optical burst ring net, Figure 13 is according to this
The operating mechanism schematic diagram based on optical burst ring net of bright embodiment, as shown in Figure 12 and Figure 13, network Centralized Controller
It is firstly received multicast network and sets up request ((1) in Figure 12), carries out light is handed over inside network Centralized Controller
The determination of the resource allocation information of node is changed, then by the resource distribution of the optical-fiber network (or referred to as Optical Switch Node) for determining
Information is issued to Optical Switch Node ((2) in Figure 12), and Optical Switch Node is entered based on the resource allocation information for receiving
Resource distribution.Specific to the implementation environment shown in Figure 12, remain by electric Packet Switch Node b, c, d request electricity point
The resource of group switching node a, after resource allocation information is sent to Optical Switch Node by network Centralized Controller, light is exchanged
Node A, B, C, D carry out the distribution of multi-case data according to the resource allocation information.First, Optical Switch Node A from
After electric Packet Switch Node a obtains data, Optical Switch Node B is sent to, data are replicated by Optical Switch Node B,
Portion is sent to a switching node b, and portion is sent to Optical Switch Node C.Optical Switch Node foundation configuration information, for
The data for receiving are replicated, and data portion is sent to electric Packet Switch Node c, and portion is sent to Optical Switch Node
D.Optical Switch Node D is not replicated to data, only sends the data to electric switching node d.
In the above-described embodiments, the multicast implementation based on optical burst ring net, which passes through photosphere multicast and effectively can reduce
The photosphere wasting of resources.
Figure 14 is that multicast network according to embodiments of the present invention sets up request and resource allocation information schematic diagram, such as Figure 14 institutes
Show, multicast network set up request in can include multiple claims, wherein each claims by source address, destination address collection,
Bandwidth and data volume composition, source address and destination address collection are the address in electric packet switching network, according to the source address and
Destination address collection, with reference to the topology information of existing network, can obtain the source address and destination address collection in optical switching network,
And then know multicast or unicast are carried out in optical switching network.Bandwidth refers to exchange section by a light in each time slot
The size of data that point is sent to another light clearing house, data volume refer to the size of Measurement Request resource.
The multicast network newly received for each sets up request, and (or each new multicast network is set up in request
Claims), network Centralized Controller all can issue node to Optical Switch Node and connect configuration signal (i.e. in above-described embodiment
Resource allocation information), which includes that (m is the value of a change to m, sets up the multicast road of request according to the multicast network
The Optical Switch Node passed through in footpath determines) individual identical node configuration frame, each configures frame includes that Optical Switch Node is received
Bandwidth map, the reception bandwidth map can be represented by a two-dimensional table, as shown in the two-dimensional table in Figure 14,
The first row represents time slot, and first case represents the node for carrying out data receiver, and table content represents the node for carrying out data is activation,
Wherein overstriking content B, represents that, in t1 time slots, A nodes receive the data of one bandwidth of B node.Additionally, by Figure 14
It is known that in t1 time slots, B node have sent data to A nodes and D nodes, that is, data are in light simultaneously
Switching network network layers are replicated, and realize multicast.It should be noted that the bivariate table in Figure 14 is simply illustrated,
In the form of illustrating multicast broadband map and implication, do not match with Figure 12.
With reference to Figure 11, flow process is further described to be realized to the multicast network of above-mentioned optical burst ring net.Concentrate in network and control
In system, the network that 112 monitored data master controller of request receiving module is sent sets up request, is then sent to host process
Module 114；Afterwards, host process module 114 inquires about existing IP network and optical-fiber network connection status storehouse 116, by existing net
Network link information is sent in multicast resource allocation algorithm module 118 with network request information, and waits algorithm feedback information.
Finally, the configuration information of the feedback of multicast resource allocation algorithm module 118, is sent to OpenFlow by host process module 114
Protocol adaptation module 1110 is to be issued in Optical Switch Node, while updating IP network and optical-fiber network connection status storehouse 116
Content.
Figure 15 is resource allocation algorithm flow chart (the initial hit money i.e. in above-described embodiment based on random initial hit
Source allocation algorithm), as shown in figure 15, the resource allocation algorithm of the initial hit is comprised the following steps：
Step S1502, by all claims in network request matrix according to bandwidth on demand size sequence (Measurement Request band
Width=destination node number × bandwidth).
Step S1504, to all claims, carries out bandwidth allocation according to algorithm is preferentially hit first.
Step S1506, when the claims that presence cannot distribute then reduce bandwidth on demand cutting coefficient, restarts step
S1504, until all claims are all assigned.
After completing, Optical Switch Node reception bandwidth map is exported to host process module 114.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
It is used for the program code for performing following steps to be arranged to store：
S11, determines resource allocation information, wherein, the resource allocation information is used to indicate Optical Switch Node in multicast network
By the data duplication of the first electric Packet Switch Node transmission in multicast network into more than two parts, and by duplication after two
Part data above is sent respectively to the second electric Packet Switch Node of two or more in multicast network；
The resource allocation information is sent to Optical Switch Node by S12.
Alternatively, storage medium is also configured to store the program code for being used to performing following steps：S11-S12.
S21, receives the resource allocation information that network Centralized Controller sends；
S22, according to the data duplication that the first electric Packet Switch Node in multicast network is transmitted by resource allocation information
Into more than two parts, and by duplication after two parts of data above be sent respectively to the electricity packet of the two or more second in multicast network
Switching node.
Alternatively, in the present embodiment, processor performs S21-S22 according to the program code for having been stored in storage medium.
Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read only memory
(Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, letter
Referred to as RAM), portable hard drive, magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment
Example, the present embodiment will not be described here.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general
Realizing, they can concentrate on single computing device computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they
Storage in the storage device by computing device performing, and in some cases, can be holding different from order herein
The shown or described step of row, or they are fabricated to each integrated circuit modules respectively, or will be many in them
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware
Combine with software.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the technology of this area
For personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made it is any
Modification, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (14)
1. a kind of sending method of resource allocation information, it is characterised in that include：
Determine resource allocation information, wherein, the resource allocation information is used to indicate Optical Switch Node in multicast network
By the data duplication of the first electric Packet Switch Node transmission in the multicast network into more than two parts, and will be multiple
Two parts of data above after system are sent respectively to the second electric Packet Switch Node of two or more in the multicast network；
The resource allocation information is sent to into the Optical Switch Node.
2. method according to claim 1, it is characterised in that determine that resource allocation information includes：
Receive carries out the Measurement Request of resource distribution in the multicast network for request, wherein, the multicast please
At least one following information is carried in asking：For sending the address of the source electricity Packet Switch Node of data, for connecing
The address of the purpose electricity Packet Switch Node of receipts data, bandwidth, data volume；
Described according to the Information Pull carried in the Measurement Request, the network topological information of multicast network determines
Resource allocation information.
3. method according to claim 2, it is characterised in that the resource allocation information at least includes following information：
The Optical Switch Node is received after the gap information of the data, the Optical Switch Node send the duplication
The bandwidth information of the gap information of two parts of data above, the Optical Switch Node transmission data.
4. method according to claim 3, it is characterised in that the bandwidth information of the Optical Switch Node transmission data is led to
Cross following manner determination：
It is determined that the bandwidth set up required for the multicast network；
The bandwidth according to determining determines the bandwidth information of the Optical Switch Node transmission data.
5. method according to claim 4, it is characterised in that
It is determined that the bandwidth set up required for the multicast network includes：Obtain the purpose electricity that the Measurement Request includes
The number of Packet Switch Node, and the predetermined unit data carried out data transmission in the multicast network
Bandwidth；Determine that the number of purpose electricity Packet Switch Node is described to set up with the product of the unit data bandwidth
Bandwidth required for multicast network；
The bandwidth according to determining determines that the bandwidth information of the Optical Switch Node transmission data includes：It is determined that basis
At least two claims in the Measurement Request set up bandwidth required respectively during the multicast network；Will be described
At least two claims bandwidth required respectively is ranked up according to descending order；According to ranking results profit
With preferentially hit algorithm determines the bandwidth information of the transmission data of the Optical Switch Node respectively first.
6. method according to claim 5, it is characterised in that according to ranking results using the hit preferential first
After algorithm determines the bandwidth information of the transmission data of the Optical Switch Node respectively, also include：
Distribute the bandwidth information pair of the transmission data of the Optical Switch Node of the determination for the Optical Switch Node
The bandwidth answered；
When distribution failure, the unit data bandwidth is adjusted.
7. a kind of data distributing method, it is characterised in that include：
Receive the resource allocation information that network Centralized Controller sends；
According to the data that the first electric Packet Switch Node in multicast network is transmitted by the resource allocation information
Be copied into more than two parts, and by duplication after two parts of data above be sent respectively to two in the multicast network with
Upper second electric Packet Switch Node.
8. a kind of dispensing device of resource allocation information, it is characterised in that include：
Determining module, for determining resource allocation information, wherein, the resource allocation information is used to indicate multicast net
In network Optical Switch Node by the data duplication of the first electric Packet Switch Node transmission in the multicast network into
More than two parts, and by duplication after two parts of data above be sent respectively to the two or more second in the multicast network
Electric Packet Switch Node；
Sending module, for the resource allocation information is sent to the Optical Switch Node.
9. device according to claim 8, it is characterised in that the determining module includes：
Receiving submodule, for receiving the Measurement Request for carrying out resource distribution for request in the multicast network,
Wherein, at least one following information is carried in the Measurement Request：For sending the source electricity packet switch section of data
The address of point, the purpose electricity address of Packet Switch Node for receiving data, bandwidth, data volume；
Determination sub-module, the network for the multicast network according to the Information Pull carried in the Measurement Request are opened up
The information of flutterring determines the resource allocation information.
10. device according to claim 9, it is characterised in that the resource allocation information at least includes following information：
The Optical Switch Node is received after the gap information of the data, the Optical Switch Node send the duplication
The bandwidth information of the gap information of two parts of data above, the Optical Switch Node transmission data.
11. devices according to claim 10, it is characterised in that the determination sub-module includes：
First determining unit, for it is determined that the bandwidth of Optical Switch Node transmission data in the resource allocation information
During information, it is determined that the bandwidth set up required for the multicast network；
Second determining unit, for the bandwidth for determining the Optical Switch Node transmission data according to the bandwidth for determining
Information.
12. devices according to claim 11, it is characterised in that
First determining unit includes：Subelement is obtained, for obtaining the purpose electricity packet that the Measurement Request includes
The number of switching node, and the predetermined unit data bandwidth carried out data transmission in the multicast network；
First determination subelement, for determining the number and the unit data bandwidth of the purpose electricity Packet Switch Node
Product is the bandwidth set up required for the multicast network；
Second determining unit includes：Second determination subelement, for determining according at least two in the Measurement Request
Individual claims set up bandwidth required respectively during the multicast network；Sequence subelement, at least two by described in
Individual claims bandwidth required respectively is ranked up according to descending order；3rd determination subelement, is used for
According to ranking results using preferentially hit algorithm determines the bandwidth of the transmission data of the Optical Switch Node respectively first
Information.
13. devices according to claim 12, it is characterised in that the second determining unit also includes：
Distribution subelement, for preferentially hit algorithm determines the light respectively first using described according to ranking results
After the bandwidth information of the transmission data of switching node, it is that the light of the Optical Switch Node distribution determination is handed over
Change the corresponding bandwidth of bandwidth information of the transmission data of node；
Adjustment subelement, for when distribution fails, adjusting the unit data bandwidth.
14. a kind of data delivery devices, it is characterised in that include：
Receiver module, for receiving the resource allocation information of network Centralized Controller transmission；
Replication module, for according to the resource allocation information by the first electric packet switch section in multicast network
Point transmission data duplication into more than two parts, and by duplication after two parts of data above be sent respectively to the multicast net
The second electric Packet Switch Node of two or more in network.
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| CN201510613472.9A CN106550291A (en) | 2015-09-23 | 2015-09-23 | The transmission of resource allocation information, data distributing method and device |
| PCT/CN2016/094212 WO2017050036A1 (en) | 2015-09-23 | 2016-08-09 | Resource allocation information transmission and data distribution method and device |
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