CN105306365B - A kind of powerline network and its dilatation ruin routed path and determine method with anti- - Google Patents
A kind of powerline network and its dilatation ruin routed path and determine method with anti- Download PDFInfo
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Abstract
A kind of powerline network and its dilatation ruin routed path and determine method with anti-, belong to communication technology technical field.Including client terminal, the interchanger of a centralized controller and multiple support OpenFlow agreements is further included；The application of software defined network causes electric power data communication to obtain global network view, and service quality obtains better quality guarantee.Interacting message is carried out between centralized controller and the interchanger for supporting OpenFLow agreements, when power telecom network needs dilatation or breaks down, automatically configure forward-path, reduce processing delay, so that dilatation speed and fault recovery are accelerated, and significantly reduce configuration fault rate and reduce human resources consumption.
Description
Technical field
The invention belongs to the communication technology, more particularly to a kind of powerline network and its dilatation are ruined routed path and are determined with anti-
Method.
Background technology
Traditional distributed AC servo system based on Synchronous Digital Hierarchy can not meet fine granularity flow monitoring in power telecom network
Demand.In addition, traditional intelligence electric network is seldom considered power telecom network dilatation and the anti-application scenarios ruined by path calculation method
And demand.When power telecom network needs dilatation or breaks down, still through the method for human configuration forward-path, so as to produce
The excessive human resources of raw higher configuration fault rate, consumption, and there is the slower situation of dilatation speed and fault recovery.
Software defined network can make manager carry out global control and monitoring to power telecom network by centralized controller,
Meanwhile it being capable of dynamic and rapid configuration forward-path.
The content of the invention
For deficiency existing for existing method, the present invention provides a kind of powerline network and its dilatation and route road with anti-ruins
Footpath determines method.
What the technical solution adopted in the present invention was realized in：
A kind of powerline network, is software defined network, including client terminal, further include a centralized controller,
With the interchanger of multiple support OpenFlow agreements；
The centralized controller, for establishing a connection with the interchanger of multiple support OpenFlow agreements；To each
Interchanger sends each interchanger of message calls and is sent to their own physical features and functional information；To the category of each interchanger
Property is configured and deletes all flow table items；The link information collected according to interchanger, obtains the topology of whole network；According to
User request information and network topology, are that global shortest route path is established per data stream by OpenFlow agreements；Work as net
Network occur dilatation either break down after according to interchanger collect accordingly increase or lost chains road information, dynamic more
New network topology structure；According to the network topology of dynamic renewal and corresponding user request information, shortest route road is recalculated
Footpath simultaneously issues corresponding flow table item to interchanger；
The interchanger, for establishing a connection with centralized controller；Its physical features and functional information are sent
To centralized controller；Real-time link information is sent to by centralized controller according to Link Layer Discovery Protocol；By asking for user
Information is asked to be sent to centralized controller；
The dilatation of the powerline network ruins routed path and determines method with anti-, includes the following steps：
Step 1：Consult what both sides supported between the interchanger of centralized controller and each support OpenFlow agreements
OpenFlow protocol versions, to establish a connection；
Step 2：Centralized controller sends each interchanger of message calls to each interchanger and is sent to their respective things
Manage feature and functional information；
Step 3：Each interchanger answers centralized controller to require to send their respective physical features to centralized controller
And functional information；
Step 4：Centralized controller is configured the attribute of each interchanger；
Step 5：Centralized controller carries out Initialize installation to each interchanger, that is, deletes all flow table items；
Step 6：Link information is sent to centralized controller by each interchanger according to Link Layer Discovery Protocol；
Step 7：The link information collected according to interchanger, obtains and updates the topology of whole network；
Step 8：Its received user request information is sent to concentration by first interchanger for receiving user request information
Formula controller；
Step 9：It is that user asks by OpenFlow agreements according to user request information and real-time dynamic network topology
Establish global shortest path and issue corresponding flow table item to interchanger；
Step 10：Interchanger collection accordingly increases after dilatation either failure occurs for network or lost chains road is believed
Breath, return to step 7；
The beneficial effects of the invention are as follows：Software defined network is applied in electric power data communication by the present invention so that electric power
Data communication obtains global network view, and service quality obtains better quality guarantee.It is directed to again and is used for electric power data communication
Software defined network proposes that a kind of dilatation ruins routed path and determine method with anti-, when power telecom network needs dilatation or failure
When, forward-path is automatically configured, reduces processing delay so that dilatation speed and fault recovery are accelerated, and greatly reduce
Configuration fault rate simultaneously reduces human resources consumption.
Brief description of the drawings
Fig. 1 is the powerline network example topology figure of embodiment of the present invention；
Fig. 2 is the software defined network fundamental diagram of embodiment of the present invention；
Fig. 3 is the flow table item structure diagram of embodiment of the present invention；
Fig. 4 is that the dilatation of embodiment of the present invention powerline network ruins routed path and determine method flow diagram with anti-；
Fig. 5 is the routing path calculation method schematic diagram after embodiment of the present invention power telecom network dilatation；
Fig. 6 is the routing path calculation method schematic diagram after embodiment of the present invention power telecom network breaks down；
Fig. 7 is embodiment of the present invention to be ruined routed path and determines what method obtained using the dilatation of powerline network with anti-
The end-to-end time delay in dilatation scene and fault scenes shortest route path and the shortest route path of normal scene it is end-to-end when
Prolong comparison diagram.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
The software defined network for being used for electric power data communication of present embodiment, as shown in Figure 1, including client terminal host
1 and host 2, further include the interchangers of a centralized controller and 9 support OpenFlow agreements；Wherein host 1 is responsible for hair
Send data packet and host 2 is responsible for received data packet.Host 1 leads to equivalent to the substation in power telecom network, host 2 equivalent to electric power
Main website in letter net, the communication in power telecom network between main website and substation is simulated using host 1 and host 2.Wherein, this implementation
The centralized controller of mode is using NOX；Using OpenvSwitch, nine supports are generated with reference to KVM virtualization platform
The virtual switch of OpenFlow agreements.The IP address of NOX controllers, host 1 and host 2 in present embodiment is respectively
192.168.100.100 192.168.100.1,192.168.100.2.The virtual switch of nine support OpenFlow agreements
Br0, Br1, Br2, Br3, Br4, Br5, Br6, Br7, Br8 are followed successively by, their IP address is followed successively by 192.168.100.20,
192.168.100.21 192.168.100.22,192.168.100.23,192.168.100.24,192.168.100.25,
192.168.100.26 192.168.100.27,192.168.100.28.
Data forwarding in software defined network is the operation based on stream.Interchanger forwards number according to the rule of flow table item
According to bag, all network control functions are completed by the network application in NOX controllers.As shown in Fig. 2, NOX controllers are main
Nucleus module and network application module including NOX.Wherein nucleus module mainly includes：Thread library module；Event dispatching module；
Using deployment module；The parsing of OpenFlow data and package module；Connection management module etc..Wherein, thread library module is used for
The threading operation of operating system is provided.Event dispatching module is responsible for the event scheduling of generation to corresponding application, so as to thing
Part makes corresponding processing.The deployment for being responsible for coordinating between each application using deployment module performs.OpenFlow data packets
Parsing is used to parsing and encapsulating OpenFlow protocol data bags with package module.Connection management module is responsible for controller and interchanger
Between connection establish.Network application module mainly includes：Storage application；It was found that application；Host-tracking application；Authentication application；
Topology application；Route application；Monitoring application；Spanning tree application；Traffic grooming application etc..Storage application is used to store interchanger
Essential information.It was found that application be responsible for find bottom switch, by Packet_out information orders interchanger send LLDP bags into
And find link, and link event events of dishing out.Host-tracking, which is applied, is used to dock host into network into line trace.Certification
Using the position of host and interchanger in responsible tracking network.Topology application is used to preserve the link knot activated at present in network
Structure.It is responsible for safeguarding and updating the topology of whole bottom physical network.Route application is used to calculate using algorithm of Shortest Path for Dynamic Situation
Path between egress.Monitoring application is responsible for collecting and keeping interchanger, flow table, queue and the statistics of port in network
Information.Spanning tree application module is the essential bottom module of route selection module.In OpenFlow networks, controller can lead to
Cross Port_mod message to be configured the physical port of interchanger, the port can be made to abandon broadcast packet.This meaning
Even if interchanger receives order to the flooding of data packet, which is also only to be sent out from definite several ports
Go, rather than all of the port on interchanger, so avoid broadcast storm.Issue flow table and apply and be used for when network expands
When holding with failure, the path recalculated according to route application re-issues the flow table of respective switch.
Flow table is made of many flow table items, and each flow table item is exactly a forwarding rule.Into the data packet of interchanger
The destination interface of forwarding is obtained by inquiring about flow table.Flow table item header field, counter and operation as shown in figure 3, be made of.Its
In, header field is ten tuple, is the mark of flow table item；Counter is used for counting the statistics of flow table item；Operation designate with
The operation that the matched data packet of the flow table item should perform.OF escape ways connect OpenvSwitch interchangers and NOX controls
Device.NOX controllers are by this Interface Controller and management OpenvSwitch interchangers, while controller receives and comes from interchanger
Event and to interchanger send data packet.Interchanger and controller are communicated by escape way, and all information
It must be performed according to form as defined in OpenFlow agreements.
The dilatation of the powerline network of present embodiment ruins routed path and determines method with anti-, includes the following steps：
Step 1：Consult what both sides supported between the interchanger of centralized controller and each support OpenFlow agreements
OpenFlow protocol versions, to establish a connection；
The virtual switch of nine support OpenFlow agreements of present embodiment sends OPFT_HELLO to NOX controllers
Message；NOX controllers send OPFT_HELLO message to the virtual switch of nine support OpenFlow agreements respectively, consult double
The OpenFlow protocol versions just supported, it is established that connection relation.
Step 2：Centralized controller sends each interchanger of message calls to each interchanger and is sent to their respective things
Manage feature and functional information；
The virtual switch of NOX controllers to nine support OpenFlow agreements sends OPFT_ respectively in present embodiment
FEATURES_REQUEST message, it is desirable to which each interchanger is sent to their respective physical features and functional information.
Step 3：Each interchanger answers centralized controller to require to send their respective physical features to centralized controller
And functional information；
The virtual switch of nine support OpenFlow agreements of present embodiment returns to OPFT_ to NOX controllers
FEATURES_REPLY message, informs their own physical features and functional information, for example, telling NOX controller interchangers
How many flow table and how many a ports, possess the functions such as flow table item statistics, flow table statistics, port statistics, priority-queue statistic, support
Which motion action etc..
Step 4：Centralized controller is configured the attribute of each interchanger；
The virtual switch of NOX controllers to nine support OpenFlow agreements sends OPFT_ respectively in present embodiment
SET_CONFIG message, is configured their attribute, and the maximum length for such as setting data packet is 128 bytes.
Step 5：Centralized controller carries out Initialize installation to each interchanger, that is, deletes all flow table items；
The virtual switch of NOX controllers to nine support OpenFlow agreements sends OPFT_FLOW_ in present embodiment
MOD message, is most initially to delete all flow table items.
Step 6：Link information is sent to centralized controller by each interchanger according to Link Layer Discovery Protocol；
Step 7：The link information collected according to interchanger, obtains the topology of whole network；
Step 8：Its received user request information is sent to concentration by first interchanger for receiving user request information
Formula controller；When there is data packet to reach interchanger, if the flow table item not matched with data packet, interchanger is to NOX
Controller sends Packet In message, as shown in figure 4, and judging whether data packet is LLDP (Link Layer Discovery Protocol) data
Bag, no, and words then perform step 9, then return to step 7 if being.
Step 9：It is that user asks by OpenFlow agreements according to user request information and real-time dynamic network topology
Establish global shortest path and issue corresponding flow table item to interchanger；
After NOX controllers receive Packet In message, NOX controllers carry out resolve packet and obtain destination host address
And find the switch address being attached thereto.And shortest path is calculated by source, purpose switch address, it is the request of data packet
Establish and route and issue corresponding flow table item to interchanger.If as shown in figure 4, the shortest path is illegal, by data packet
Flooding is gone out.Present embodiment NOX controllers to the virtual switch of nine support OpenFlow agreements by sending OPFT_
PORT_MOD message is, it is specified that their physical port behavior, such as some port of configuration interchanger, is not wrapped when flooding
This port is included, and then avoids the broadcast storm of network.
Step 10：Interchanger collection accordingly increases after dilatation either failure occurs for network or lost chains road is believed
Breath, return to step 7；
After dilatation occurs for network, the discovery in NOX controllers applies to route application and sends datapath-join (links
Increase) event alert.After receiving warning, after route application sends renewal to the interchanger of relevant support OpenFlow agreements
OPFT_FLOW_MOD message so that the shortest route path after Configuration network dilatation.After network failure, NOX controllers
In discovery apply to route application send datapath-leave (loss of link) event alert.After receiving warning, route
The OPFT_FLOW_MOD message after renewal is sent using to the interchanger of relevant support OpenFlow agreements, so as to configure net
Network break down after route recovery path.
As shown in figure 5, the virtual friendship of OpenFlow agreements is supported in addition in original power communication net topology shown in Fig. 1
Change planes Br9, so that the dilatation scene of power telecom network is simulated, meanwhile, two new linksWithQuilt
Establish.When the electric power data that host 1 is sent reaches Br8, Packet_In message will be sent to NOX controllers, in NOX controllers
Discovery apply to route application and send above-mentioned datapath-join event alerts, route application uses shortest path first meter
Calculating the shortest route path after the network capacity extension is：No. 4 of No. 9 output port → Br9 of No. 7 input port → Br8 of Br8 are defeated
No. 7 output ports of No. 9 input port → Br0 of No. 2 output port → Br0 of inbound port → Br9.Route is applied to relevant
The switch b r8, Br9 and Br0 of OpenFlow agreements is supported to send the OPFT_FLOW_MOD message after renewal, so as to configure net
This shortest route path after network dilatation.
As shown in fig. 6, the virtual friendship for supporting OpenFlow agreements is deleted in original power communication net topology shown in Fig. 1
Change planes Br1, so that the fault scenes of power telecom network are simulated, meanwhile, three linksWithFailure.As the electric power data arrival Br5 that host 1 is sent, Packet_In message will be sent to NOX controllers, NOX
Controller sends above-mentioned datapath-leave event alerts, rapid configuration forward-path mould to rapid configuration forward-path module
Block use shortest path first calculate the route recovery path after network failure for：No. 7 input port → Br8 of Br8
No. 2 of No. 6 input port → Br3 of No. 2 output port → Br3 of No. 6 input port → Br7 of No. 6 output port → Br7
No. 7 output ports of No. 6 input port → Br0 of output port → Br0.Application is route to relevant support OpenFlow agreements
Switch b r8, Br7, Br3 and Br0 send renewal after OPFT_FLOW_MOD message so that after Configuration network breaks down
This route recovery path.
There is a situation where dilatation for powerline network for dilatation scene in Fig. 7；Fault scenes are powerline network
The situation of network failure, there is a situation where dilatation and failure for powerline network for normal scene.End-to-end (source address to mesh
Address, send the hosts 1 of data between the host 2 for receiving data) method that latency measurement uses Ping orders, measure 15
Group data are averaged again.From Fig. 7, it can be seen that ruin route road with anti-using the dilatation of the powerline network of the present invention
Footpath determines the end-to-end time delay in the shortest route path that method calculates for dilatation scene and fault scenes, approaches very much normal field
The end-to-end time delay in the shortest route path of scape, so as to demonstrate effectiveness of the invention.
Claims (3)
1. a kind of powerline network, belongs to software defined network, including client terminal, further include a centralized controller,
With the interchanger of multiple support OpenFlow agreements；
The centralized controller, for establishing a connection with the interchanger of multiple support OpenFlow agreements；To each exchange
Machine sends each interchanger of message calls and is sent to their own physical features and functional information；To the attribute of each interchanger into
Row sets and deletes all flow table items；The link information collected according to interchanger, obtains the topology of whole network；According to user
Solicited message and network topology, are that global shortest route path is established per data stream by OpenFlow agreements；When network is sent out
Raw dilatation either break down after according to accordingly increasing of collecting of interchanger or lost chains road information, dynamic update net
Network topological structure；According to the network topology of dynamic renewal and corresponding user request information, shortest route path is recalculated simultaneously
Corresponding flow table item is issued to interchanger；
The interchanger, for establishing a connection with centralized controller；Its physical features and functional information are sent to collection
Chinese style controller；Real-time link information is sent to by centralized controller according to Link Layer Discovery Protocol；The request of user is believed
Breath is sent to centralized controller.
2. the dilatation of the powerline network described in claim 1 ruins routed path and determines method with anti-, it is characterised in that：Including
Following steps：
Step 1：Consult the OpenFlow that both sides support between the interchanger of centralized controller and each support OpenFlow agreements
Protocol version, to establish a connection；
Step 2：Centralized controller sends each interchanger of message calls to each interchanger and is sent to their respective physics spies
Seek peace functional information；
Step 3：The requirement of each switch responds centralized controller, their respective physical features and function to centralized controller
Information；
Step 4：Centralized controller is configured the attribute of each interchanger；
Step 5：Centralized controller carries out Initialize installation to each interchanger；
Step 6：Link information is sent to centralized controller by each interchanger according to Link Layer Discovery Protocol；
Step 7：The link information collected according to interchanger, obtains and updates the topology of whole network；
Step 8：Its received user request information is sent to centralized control by first interchanger for receiving user request information
Device processed；
Step 9：According to user request information and real-time dynamic network topology, ask to establish for user by OpenFlow agreements
Global shortest path simultaneously issues corresponding flow table item to interchanger；
Step 10：Interchanger, which is collected, after dilatation either failure occurs for network accordingly increases or lost chains road information, returns
Return step 7.
3. the dilatation of powerline network according to claim 2 ruins routed path and determines method with anti-, it is characterised in that：
The method that centralized controller carries out each interchanger Initialize installation in the step 5 is all flow table items of deletion.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107124287A (en) * | 2016-02-24 | 2017-09-01 | 中移(苏州)软件技术有限公司 | A kind of virtual network service method for quality control and device |
| CN105933252A (en) * | 2016-04-01 | 2016-09-07 | 浪潮电子信息产业股份有限公司 | Switch communication method and system and switch |
| CN106130766B (en) * | 2016-09-23 | 2020-04-07 | 深圳灵动智网科技有限公司 | System and method for realizing automatic network fault analysis based on SDN technology |
| CN106130767B (en) * | 2016-09-23 | 2020-04-07 | 深圳灵动智网科技有限公司 | System and method for monitoring and solving service path fault |
| CN108768867B (en) * | 2018-04-20 | 2021-07-16 | 浙江大学 | Energy internet routing architecture method based on software definition |
| CN113438099A (en) * | 2021-06-02 | 2021-09-24 | 国网浙江省电力有限公司金华供电公司 | PCE-based power grid fault path recovery system and method |
| CN113408140B (en) * | 2021-06-30 | 2023-12-12 | 中国南方电网有限责任公司 | Power communication network capacity expansion simulation verification method, device, equipment and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369613A (en) * | 2013-07-05 | 2013-10-23 | 中国科学院计算机网络信息中心 | System and method for realizing mobile switching based on Open Flow |
| CN103718519A (en) * | 2011-08-11 | 2014-04-09 | 瑞典爱立信有限公司 | Implementing OSPF in split architecture networks |
| CN104518927A (en) * | 2014-12-15 | 2015-04-15 | 清华大学 | Detecting method and device of error connection in data center network |
| CN104767681A (en) * | 2015-04-14 | 2015-07-08 | 清华大学 | Data center network routing method capable of tolerating error connection |
-
2015
- 2015-11-16 CN CN201510784650.4A patent/CN105306365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103718519A (en) * | 2011-08-11 | 2014-04-09 | 瑞典爱立信有限公司 | Implementing OSPF in split architecture networks |
| CN103369613A (en) * | 2013-07-05 | 2013-10-23 | 中国科学院计算机网络信息中心 | System and method for realizing mobile switching based on Open Flow |
| CN104518927A (en) * | 2014-12-15 | 2015-04-15 | 清华大学 | Detecting method and device of error connection in data center network |
| CN104767681A (en) * | 2015-04-14 | 2015-07-08 | 清华大学 | Data center network routing method capable of tolerating error connection |
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