CN104954261B - Utilize the method and system of flow table forwarding data - Google Patents
Utilize the method and system of flow table forwarding data Download PDFInfo
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- CN104954261B CN104954261B CN201510274691.9A CN201510274691A CN104954261B CN 104954261 B CN104954261 B CN 104954261B CN 201510274691 A CN201510274691 A CN 201510274691A CN 104954261 B CN104954261 B CN 104954261B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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Abstract
The present invention provides a kind of method and system that data are forwarded using flow table.According to methods described, the repeater system is according to the default virtual circulation path being made up of at least one flow table of the type of service of data；A virtual circulation path is selected further according to the type of service of received data, and when being circulated according to received data in selected virtual circulation path resulting each flow table value, select next virtual circulation path, until the attribute of last flow table in selected virtual circulation path for that can not redirect, is then forwarded according to the value of each flow table in last described virtual circulation path to received data.The present invention can effectively avoid existing OpenFlow interchangers from needing that data repeatedly are returned again into repeating for physical input port from physical output port output, improve the service efficiency of physical port.
Description
Technical field
The present invention relates to a kind of data forwarding technology, more particularly to a kind of method using flow table forwarding data and is
System.
Background technology
OpenFlow is a kind of new network for supporting transmission via net to study that Stanford Univ USA proposed in 2007
Exchange model,.One of OpenFlow design object is exactly to be separated the control function of the network equipment with forwarding capability, is entered
And control function is all focused on long-range controller and completed.And OpenFlow interchangers are only responsible for locally doing simple height
The data forwarding of speed.In the running of OpenFlow interchangers, the foundation of its data forwarding is exactly flow table (flow
table).So-called flow table, OpenFlow can be deemed to be in fact one kind of the data forwarding function of the network equipment is abstracted.
In legacy network devices, TCAM (ternary content addressable memory three-state content addressings
Memory) it is mainly used in FIB, MAC, MPLS Lable and ACL table.Because the matching field length of each table differs, so can
To separately design, and limited with maximum capacity to reach minimum expense.And in OpenFlow exchanges, do not repartition
The shorter FIB of matching length, MAC, MPLS Lable table and longer ACL table, and without exception using the stream with maximum length
List item record replaces.For OpenFlow v1.0, the matching field length of flow table is up to 252, and in general IPv4 RIB
TCAM matching field length only has 60 to 80, and its expense adds more than three times.
In order to reduce flow table expense, OpenFlow v1.1 devise multilevel flow table, i.e., flow table are carried out into feature extraction, entered
And matching process is resolved into multiple steps, the processing form of streamline is formed, so as to reduce total flow table record strip number.It is but super
The actual physics for crossing the multilevel flow table of three-level realize that, by the influence of the factors such as chip complexity, cost, feasibility is than relatively low.Mesh
Before most flow table series for having been carried out be three-level.
With the increase of the data complexity transmitted in network, OpenFlow interchangers are in parsing with nested data
When (such as QinQ data), often parsing one layer of nesting just must be defeated by the physics of next layer sub-data from the OpenFlow interchangers
Exit port returns again to the physical input port of the OpenFlow interchangers, to realize next layer of nested parsing.The input of redundancy
Output, causes the resource of the physical port of OpenFlow interchangers to go short of.In order to solve the above problems, it is necessary to existing skill
Art is improved.
The content of the invention
In view of the above the shortcomings that prior art, data are forwarded using flow table it is an object of the invention to provide a kind of
Method and system, for the resource for solving the problems, such as efficiently utilize OpenFlow interchangers in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of method that data are forwarded using flow table, bag
Include：According to the default virtual circulation path being made up of at least one flow table of the type of service of data；According to received data
Type of service selects a virtual circulation path, and when being circulated according to received data in selected virtual circulation path
The value of resulting each flow table, next virtual circulation path is selected, until last in selected virtual circulation path
The attribute of flow table is can not redirect, then according to the value of each flow table in last described virtual circulation path to received data
Forwarded.
Preferably, the type of service according to the data default virtual circulation path being made up of at least one flow table
Mode includes：One configuration interface for being used for incoming traffic type and flow table is provided, carried out according to user in the configuration interface
Type of service and corresponding virtual circulation path design operation, generation one virtually circulation path.
Preferably, before described the step of selecting a virtual circulation path according to the type of service of received data,
Also include：A buffer area is opened up for received data, received data is stored in the buffer area.
Preferably, it is described to select the mode in a virtual circulation path to include according to the type of service of received data：Press
According to default each type of service priority from high to low, successively by one virtual stream of data corresponding selection in the buffer area
Turn path.
Preferably, the port for being used for forwarding data is included in the virtual circulation path, it is corresponding, according to received number
According to type of service select a virtual circulation path, and flowed according to received data in selected virtual circulation path
The value of resulting each flow table when turning, next virtual circulation path is selected, until last in selected virtual circulation path
The attribute of one flow table is can not redirect, then according to the value of each flow table in last described virtual circulation path to being received
During data are forwarded, methods described also includes：, will be in each virtual circulation path according to default scheduling strategy
The different pieces of information of same flow table, and/or port is needed to use to be scheduled.
Based on above-mentioned purpose, the present invention also provides a kind of system that data are forwarded using flow table, including：Default unit, is used
According to the default virtual circulation path being made up of at least one flow table of the type of service of data；Retransmission unit, for basis
The type of service of received data selects a virtual circulation path, and according to received data in selected virtual circulation
The value of resulting each flow table when being circulated in path, next virtual circulation path is selected, until selected virtual circulation path
In last flow table attribute can not to redirect, then according to the value pair of each flow table in last described virtual circulation path
Received data is forwarded.
Preferably, the default unit is used to provide a configuration interface for being used for incoming traffic type and flow table, according to
The type of service and the design operation in corresponding virtual circulation path that family is carried out in the configuration interface, generate a virtual stream
Turn path.
Preferably, the system also includes：Buffer unit, for the business in the retransmission unit according to received data
Before the virtual circulation path of type selecting one, a buffer area is opened up for received data, received data is stored in institute
State buffer area.
Preferably, the retransmission unit be additionally operable to according to default each type of service priority from high to low, successively will
The virtual circulation path of data corresponding selection one in the buffer area.
Preferably, the port for being used for forwarding data is included in the virtual circulation path, it is corresponding, in the retransmission unit
During carrying out forward process for multiple data, the system also includes：Scheduling unit, for according to default scheduling plan
Slightly, in each virtual circulation path the different pieces of information of same flow table, and/or port will be needed to use to be scheduled.
As described above, the method and system that data are forwarded using flow table of the present invention, are had the advantages that：Pass through root
Virtual circulation path is set according to type of service, the data with nesting and non-nested data can be distinguish between, and for nesting
The type of service of data sets each layer of nested virtual circulation path, and according to each flow table in previous virtual circulation path
The virtual circulation path corresponding to next layer of nesting is determined with the value obtained by data, and directly goes to respective virtual circulation road
Footpath, it so, it is possible effectively to avoid existing OpenFlow interchangers from needing repeatedly to return data again from physical output port output
Repeating for physical input port is returned, improves the service efficiency of physical port；Further, since OpenFlow interchangers can be same
When handle a plurality of virtual circulation path, and each flow table of each virtual circulation path reusable and port, therefore, to each flow table and port
Be scheduled, with ensure every virtual circulation path can timely processing data to be forwarded, effectively increase data forwarding
Efficiency；In addition, providing the design interface in virtual circulation path for technical staff, technical staff can be easy to come according to the actual requirements
Adjust existing virtual circulation path.
Brief description of the drawings
Fig. 1 is shown as the flow chart of the method that data are forwarded using flow table of the present invention.
Fig. 2 is shown as data in the method using flow table forwarding data of the present invention and circulated in a plurality of virtual circulation path
Schematic diagram.
Fig. 3 is shown as the system structure diagram that data are forwarded using flow table of the present invention.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
As shown in figure 1, the present invention provides a kind of method that data are forwarded using flow table.The retransmission method is mainly by forwarding
System performs.The repeater system includes：Software and hardware in network access equipment comprising flow table.Wherein, the net
Hardware in network access device includes：For performing the chip of the retransmission method.The network access equipment includes but unlimited
In：Interchanger, router etc..
In step sl, the repeater system is according to the default void being made up of at least one flow table of the type of service of data
Intend circulation path.
Specifically, the repeater system has pre-saved at least one flow table.The flow table can be deemed to be OpenFlow
One kind of the data forwarding function of the network equipment is abstracted.The repeater system is by received data according to the virtual circulation
Path circulates at least one flow table, can be obtained from corresponding flow table for forward the data destination address, end
The information such as mouth.Wherein, the forwarding of a data can be realized by a virtual circulation path, can also be by a plurality of described
It is virtual to circulate path to realize.If during by a plurality of virtual circulation path to forward data, selected by the repeater system
First flow table that last flow table in virtual circulation path can be jumped in next virtual circulation path.
Here, the type of service includes but is not limited to：Video type, type of webpage, the type based on webpage nesting, base
In nested type of video etc..Corresponding virtual circulation road can be fixedly installed in the repeater system according to existing type of service
Footpath.
Here, each flow table in the virtual circulation path has the attribute that can be redirected/can not redirect.Wherein, attribute
Flow table for that can not redirect is located at last that place virtually circulates in path.
Preferably, the repeater system provides a configuration interface for being used for incoming traffic type and flow table, is existed according to user
The type of service carried out in the configuration interface and the design operation in corresponding virtual circulation path, the virtual circulation path of generation one.
Specifically, the repeater system provide for designing, the configuration interface in management business type and virtual circulation path.
I.e. user can increase flow table according to new type of service into the repeater system, and according to corresponding to new service class design
Each flow table and flow table order in virtual circulation path, thus generates a new virtual circulation path.
The repeater system can also allow user to change or delete existing type of service and corresponding virtual circulation road
Footpath, to meet that interchanger applies needs in different occasions.
In step s 2, when the repeater system receives data, the repeater system is according to the business of received data
The virtual circulation path of type selecting one, and obtained by when being circulated according to received data in selected virtual circulation path
The value of each flow table arrived, next virtual circulation path is selected, until last flow table in selected virtual circulation path
Attribute can not to redirect, then received data is given according to the value of each flow table in last described virtual circulation path
Forwarding.
Specifically, an address may be included in the repeater system received data, it is also possible to include multiple addresses.
Therefore, at the virtual circulation path of selection, the repeater system needs virtual according to the type of service of data selection one
Circulate path.After the data are sent into selected virtual circulation path, the repeater system can be according to the virtual circulation
The matching result of each flow table and the respective protocol in the data in path, to choose whether to also need to carry out depth to data
Excavate, to obtain the forwarding mechanism and the corresponding port that are optimized to data forwarding.
For example, the repeater system received data belongs to based on the nested type of webpage, then the repeater system choosing
Select first virtual circulation path of the corresponding type nested based on webpage.When the repeater system is according to selected first
When the data are carried out characteristic matching by the webpage host-host protocol that each flow table is provided in virtual circulation path, obtain nested
The type of service of subdata is video type, then last flow table in described first virtual circulation path is redirected into finger
The Article 2 that order is arranged to corresponding video type virtually circulates the numbering in path, and the data are sent into the Article 2 accordingly
In virtual circulation path.The repeater system virtually circulates the video subdata in the data path by the Article 2
In the characteristic matching of each flow table determine to have no other nested datas in the video subdata, then the Article 2 is virtually circulated
The attribute of last flow table is arranged to redirect in path, and is virtually circulated each flow table in path according to the Article 2
Characteristic matching result determines the physical output port of the data and forwarded.Wherein, described first virtual circulation path
The circulation process in path of virtually being circulated with Article 2 is referred to shown in Fig. 2.
Preferably, the repeater system can carry out the circulation in virtual circulation path for multiple data simultaneously, to reach pair
The purpose of multidata parallel processing.Therefore, the repeater system selects one described according to the type of service of received data
Before the step of individual virtual circulation path, also perform：A buffer area is opened up for received data, received data is stored in
The step of buffer area.
For example, the repeater system, which can be received data, opens up a buffer pool, and received data is stored in
In the buffer pool.The quantity in the virtual circulation path that the repeater system is handled according to present parallel is unsatisfactory for predetermined number threshold
During value, a data are obtained from the buffer pool, and corresponding virtual circulation is distributed according to the type of service of acquired data
Path.
It is further preferable that the repeater system according to default each type of service priority from high to low, successively by institute
State the virtual circulation path of data corresponding selection one in buffer area.
Specifically, the repeater system according to each type of service design respective virtual circulation path priority, and according to
The type of service of received data, provide the high high priority data of priority in the buffer pool to virtual circulation path.
For example, the data in the buffer pool are respectively type of webpage and video type.Then the repeater system is default regards
The virtual circulation path priority of frequency type is higher than the virtual circulation path of type of webpage, and according to the high priority data of video type
One virtual circulation path is provided.And the data of type of webpage are still placed in the buffer pool, wait the repeater system simultaneously
After the completion of the data of row processing are forwarded, the data of the type of webpage are reprocessed.
It can be preset in due to each flow table in different virtual circulation paths, it is therefore, parallel in the repeater system
When handling each data, the same flow table of use that may conflict in different virtual circulation paths；Or the repeater system is simultaneously
When row handles each data, final choice same port carries out data forwarding.Now, the repeater system can not be simultaneously towards difference
Data and use a flow table/port.Therefore, the repeater system needs to be scheduled shared resource.Therefore, at described turn
While hair system performs the step S2, the repeater system also performs step S3 (being unillustrated).
In step s3, the repeater system will need according to default scheduling strategy in each virtual circulation path
It is scheduled using the different pieces of information of same flow table, and/or port.
Here, the scheduling strategy includes but is not limited to following at least one：Put down based on strict priority, based on load
Weigh, based on queue scheduling etc..
For example, the repeater system monitors the data A1 of type of webpage and the data A2 of video type respective virtual
Circulation is required to use flow table B1 in path, then according to strict priority policy, virtual circulation path where instruction data A2
Flow table B1 is first taken, when virtually circulation path discharges the access right to flow table B1 where data A2, then indicates data A1 institutes
Flow table B1 is taken in virtually circulation path.
As shown in figure 3, the present invention provides a kind of system that data are forwarded using flow table.The repeater system 1 includes：Comprising
Software and hardware in the network access equipment of flow table.Wherein, the hardware in the network access equipment includes：For performing
State the chip of retransmission method.The network access equipment includes but is not limited to：Interchanger, router etc..
The repeater system 1 includes：Default unit 11, retransmission unit 12.
The default unit 11 is used for according to the default virtual stream being made up of at least one flow table of the type of service of data
Turn path.
Specifically, the default unit 11 has pre-saved at least one flow table.The flow table can be deemed to be
OpenFlow is abstracted to one kind of the data forwarding function of the network equipment.The default unit 11 is by received data according to institute
State virtual circulation path to circulate at least one flow table, the mesh for forwarding the data can be obtained from corresponding flow table
Address, the information such as port.Wherein, the forwarding of a data can be realized by a virtual circulation path, can also
Realized by a plurality of virtual circulation path.If during by a plurality of virtual circulation path to forward data, the default list
Last flow table in virtual circulation path selected by member 11 can jump in next virtual circulation path first
Individual flow table.
Here, the type of service includes but is not limited to：Video type, type of webpage etc..The default unit 11 can root
According to the corresponding virtual circulation path of existing type of service fixed setting.
Here, each flow table in the virtual circulation path has the attribute that can be redirected/can not redirect.Wherein, attribute
Flow table for that can not redirect is located at last that place virtually circulates in path.
Preferably, the default unit 11 provides a configuration interface for being used for incoming traffic type and flow table, according to user
The type of service carried out in the configuration interface and the design operation in corresponding virtual circulation path, the virtual circulation road of generation one
Footpath.
Specifically, the default unit 11 provide for designing, configuration circle in management business type and virtual circulation path
Face.I.e. user can increase flow table according to new type of service into the default unit 11, and be designed according to new service class
Each flow table and flow table order in corresponding virtual circulation path, thus generates a new virtual circulation path.
The default unit 11 can also allow user to change or delete existing type of service and corresponding virtual circulation
Path, to meet that interchanger applies needs in different occasions.
When the retransmission unit 12 receives data, the retransmission unit 12 is used for the type of service according to received data
It is resulting when selecting a virtual circulation path, and being circulated according to received data in selected virtual circulation path
The value of each flow table, next virtual circulation path is selected, until the category of last flow table in selected virtual circulation path
Property can not to redirect, then received data is turned according to the value of each flow table in last described virtual circulation path
Hair.
Specifically, an address may be included in the received data of retransmission unit 12, it is also possible to comprising multiple
Location.Therefore, at the virtual circulation path of selection, the retransmission unit 12 needs to select one according to the type of service of the data
Virtual circulation path.After the data are sent into selected virtual circulation path, the retransmission unit 12 can be according to the void
Intend the matching result of each flow table and the respective protocol in the data in circulation path, to choose whether to also need to enter data
Row depth is excavated, to obtain the forwarding mechanism and the corresponding port that are optimized to data forwarding.
For example, the received data of retransmission unit 12 belongs to based on the nested type of webpage, then the retransmission unit
First virtual circulation path of the corresponding type nested based on webpage of 12 selections.When the retransmission unit 12 is according to selected
When the data are carried out characteristic matching by the webpage host-host protocol that each flow table is provided in first virtual circulation path, institute is obtained
The type of service of nested subdata is video type, then by last flow table in described first virtual circulation path
The Article 2 that jump instruction is arranged to corresponding video type virtually circulates the numbering in path, and described in the data are sent into accordingly
Article 2 virtually circulates in path.The retransmission unit 12 is virtual by the Article 2 by the video subdata in the data
The characteristic matching of each flow table determines to have no other nested datas in the video subdata in circulation path, then by the Article 2
The attribute of last flow table is arranged to redirect in virtual circulation path, and is virtually circulated in path according to the Article 2
The characteristic matching result of each flow table determines the physical output port of the data and forwarded.Wherein, described first it is virtual
Virtually the circulate circulation process in path of circulation path and Article 2 is referred to shown in Fig. 2.
Preferably, the retransmission unit 12 can carry out the circulation in virtual circulation path for multiple data simultaneously, to reach
To the purpose of multidata parallel processing.Therefore, the retransmission unit 12 selects described according to the type of service of received data
Before the step of selecting a virtual circulation path, also perform：A buffer area is opened up for received data, by received data
The step of being stored in the buffer area.
For example, the retransmission unit 12, which can be received data, opens up a buffer pool, and received data is deposited
Enter in the buffer pool.The quantity in the virtual circulation path that the retransmission unit 12 is handled according to present parallel is unsatisfactory for present count
When measuring threshold value, a data are obtained from the buffer pool, and it is corresponding virtual according to the distribution of the type of service of acquired data
Circulate path.
It is further preferable that the retransmission unit 12 according to default each type of service priority from high to low, successively will
The virtual circulation path of data corresponding selection one in the buffer area.
Specifically, the retransmission unit 12 designs the priority in respective virtual circulation path, and root according to each type of service
According to the type of service of received data, the high high priority data of priority in the buffer pool is provided to virtual circulation path.
For example, the data in the buffer pool are respectively type of webpage and video type.Then the retransmission unit 12 is default
The virtual circulation path priority of video type is higher than the virtual circulation path of type of webpage, and excellent according to the data of video type
One virtual circulation path is first provided.And the data of type of webpage are still placed in the buffer pool, wait the retransmission unit
After the completion of the data of 12 parallel processings are forwarded, the data of the type of webpage are reprocessed.
It can be preset in due to each flow table in different virtual circulation paths, it is therefore, parallel in the repeater system 1
When handling each data, the same flow table of use that may conflict in different virtual circulation paths；Or the repeater system 1
During each data of parallel processing, final choice same port carries out data forwarding.Now, the repeater system 1 can not simultaneously towards
Different pieces of information and use a flow table/port.Therefore, the repeater system 1 needs to be scheduled shared resource.Therefore, exist
While the retransmission unit 12 performs, the repeater system 1 also includes：Scheduling unit (is unillustrated).
The scheduling unit is used for according to default scheduling strategy, will be needed to use in each virtual circulation path same
Individual flow table, and/or the different pieces of information of port are scheduled.
Here, the scheduling strategy includes but is not limited to following at least one：Put down based on strict priority, based on load
Weigh, based on queue scheduling etc..
For example, the scheduling unit monitors the data A1 of type of webpage and the data A2 of video type respective virtual
Circulation is required to use flow table B1 in path, then according to strict priority policy, virtual circulation path where instruction data A2
Flow table B1 is first taken, when virtually circulation path discharges the access right to flow table B1 where data A2, then indicates data A1 institutes
Flow table B1 is taken in virtually circulation path.
In summary, the method and system of the invention that data are forwarded using flow table, it is empty by being set according to type of service
Intend circulation path, the data with nesting and non-nested data can be distinguish between, and set for the type of service of nested data
Each layer of nested virtual circulation path is put, and according to the value obtained by each flow table matched data in previous virtual circulation path
To determine the virtual circulation path corresponding to next layer of nesting, and respective virtual circulation path is directly gone to, so, it is possible effectively
Existing OpenFlow interchangers are avoided to need that data repeatedly are returned again into physical input port from physical output port output
Repeat, improve the service efficiency of physical port；Further, since OpenFlow interchangers can handle a plurality of virtual stream simultaneously
Turn path, and each flow table of each virtual circulation path reusable and port, therefore, each flow table and port are scheduled, to ensure
Every virtual circulation path can timely processing data to be forwarded, effectively increase the efficiency of data forwarding；In addition, it is technology
Personnel provide the design interface in virtual circulation path, and technical staff can be easy to adjust existing virtual stream according to the actual requirements
Turn path；Further, by the way of virtually circulation path, without increasing the design difficulty of chip, that is, it can be suitably used for level Four even
More stages flow table.So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
- A kind of 1. method that data are forwarded using flow table, it is characterised in that including：According to the default virtual circulation path being made up of at least one flow table of the type of service of data；One virtual circulation path is selected according to the type of service of received data, and according to received data selected The value of resulting each flow table when being circulated in virtual circulation path, next virtual circulation path is selected, until selected is virtual The attribute of last flow table in circulation path then respectively flows for that can not redirect according in last described virtual circulation path The value of table is forwarded to received data.
- 2. the method according to claim 1 that data are forwarded using flow table, it is characterised in that the business according to data The mode in the default virtual circulation path being made up of at least one flow table of type includes：One configuration interface for being used for incoming traffic type and flow table, the business carried out according to user in the configuration interface are provided Type and the design operation in corresponding virtual circulation path, the virtual circulation path of generation one.
- 3. the method according to claim 1 that data are forwarded using flow table, it is characterised in that described according to received number According to type of service select a virtual circulation path the step of before, in addition to：A buffer area is opened up for received data, Received data is stored in the buffer area.
- 4. the method according to claim 3 that data are forwarded using flow table, it is characterised in that described according to received data Type of service select the mode in a virtual circulation path to include：According to default each type of service priority from high to low, successively by the data corresponding selection one in the buffer area Virtual circulation path.
- 5. the method according to claim 1 that data are forwarded using flow table, it is characterised in that in the virtual circulation path It is corresponding comprising the port for forwarding data, a virtual circulation path is being selected according to the type of service of received data, And when being circulated according to received data in selected virtual circulation path resulting each flow table value, select next void Intend circulation path, until the attribute of last flow table in selected virtual circulation path is to redirect, then according to institute State each flow table in last virtual circulation path value received data is forwarded during, methods described is also wrapped Include：According to default scheduling strategy, same flow table, and/or port will be needed to use not in each virtual circulation path It is scheduled with data.
- A kind of 6. system that data are forwarded using flow table, it is characterised in that including：Default unit, for according to the default virtual circulation path being made up of at least one flow table of the type of service of data；Retransmission unit, for selecting a virtual circulation path according to the type of service of received data, and according to being received The value of data each flow table resulting when being circulated in selected virtual circulation path, next virtual circulation path is selected, directly The attribute of last flow table into selected virtual circulation path is can not redirect, then last is virtual according to The value of each flow table is forwarded to received data in circulation path.
- 7. the system according to claim 6 that data are forwarded using flow table, it is characterised in that the default unit is used to carry For a configuration interface for being used for incoming traffic type and flow table, the type of service carried out according to user in the configuration interface and The design operation in corresponding virtual circulation path, the virtual circulation path of generation one.
- 8. the system according to claim 6 that data are forwarded using flow table, it is characterised in that also include：Buffer unit, use In before the retransmission unit selects a virtual circulation path according to the type of service of received data, for the number received According to a buffer area is opened up, received data is stored in the buffer area.
- 9. the system according to claim 8 that data are forwarded using flow table, it is characterised in that the retransmission unit is additionally operable to According to default each type of service priority from high to low, it is successively that the data corresponding selection one in the buffer area is virtual Circulate path.
- 10. the system according to claim 6 that data are forwarded using flow table, it is characterised in that the virtual circulation path In include and be used to forward the ports of data, it is corresponding, be during multiple data carry out forward process in the retransmission unit, The system also includes：Scheduling unit, for that according to default scheduling strategy, will be needed to use in each virtual circulation path Same flow table, and/or the different pieces of information of port are scheduled.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510274691.9A CN104954261B (en) | 2015-05-26 | 2015-05-26 | Utilize the method and system of flow table forwarding data |
| PCT/CN2015/093054 WO2016188032A1 (en) | 2015-05-26 | 2015-10-28 | Data forwarding method and system using flow table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110391982B (en) * | 2018-04-20 | 2022-03-11 | 伊姆西Ip控股有限责任公司 | Method, apparatus and computer program product for transmitting data |
| CN111988828B (en) * | 2018-11-23 | 2021-08-10 | 腾讯科技（深圳）有限公司 | Method, device and equipment for acquiring routing strategy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101127691A (en) * | 2006-08-17 | 2008-02-20 | 王玉鹏 | A method for implementing stream-based policy routing on network processor |
| CN104079492A (en) * | 2013-03-28 | 2014-10-01 | 华为技术有限公司 | Method, device and system of configuring flow table in OpenFlow network |
| CN104426813A (en) * | 2013-09-02 | 2015-03-18 | 中兴通讯股份有限公司 | Method, device and controller for controlling flow table updating |
| CN104468357A (en) * | 2013-09-16 | 2015-03-25 | 中兴通讯股份有限公司 | Method for multistaging flow table, and method and device for processing multistage flow table |
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| US8442048B2 (en) * | 2009-11-04 | 2013-05-14 | Juniper Networks, Inc. | Methods and apparatus for configuring a virtual network switch |
| US9609086B2 (en) * | 2013-03-15 | 2017-03-28 | International Business Machines Corporation | Virtual machine mobility using OpenFlow |
| CN104486103B (en) * | 2014-12-03 | 2018-03-16 | 新华三技术有限公司 | A kind of method and apparatus of message transmissions |
| CN104601432B (en) * | 2014-12-31 | 2018-03-13 | 新华三技术有限公司 | A kind of message transmitting method and equipment |
| CN104954261B (en) * | 2015-05-26 | 2018-01-16 | 上海斐讯数据通信技术有限公司 | Utilize the method and system of flow table forwarding data |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127691A (en) * | 2006-08-17 | 2008-02-20 | 王玉鹏 | A method for implementing stream-based policy routing on network processor |
| CN104079492A (en) * | 2013-03-28 | 2014-10-01 | 华为技术有限公司 | Method, device and system of configuring flow table in OpenFlow network |
| CN104426813A (en) * | 2013-09-02 | 2015-03-18 | 中兴通讯股份有限公司 | Method, device and controller for controlling flow table updating |
| CN104468357A (en) * | 2013-09-16 | 2015-03-25 | 中兴通讯股份有限公司 | Method for multistaging flow table, and method and device for processing multistage flow table |
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| CN104954261A (en) | 2015-09-30 |
| WO2016188032A1 (en) | 2016-12-01 |
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