CN202949446U - High-reliability highly-real-time ring network topology structure suitable for remote-control system - Google Patents
High-reliability highly-real-time ring network topology structure suitable for remote-control system Download PDFInfo
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- CN202949446U CN202949446U CN201220539309.4U CN201220539309U CN202949446U CN 202949446 U CN202949446 U CN 202949446U CN 201220539309 U CN201220539309 U CN 201220539309U CN 202949446 U CN202949446 U CN 202949446U
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Abstract
The utility model discloses a high-reliability highly-real-time ring network topology structure suitable for a remote-control system. The front end and the rear end of the high-reliability highly-real-time ring network topology structure are respectively provided with two exchangers, the four exchangers form a ring structure, the two front-end exchangers are connected with the two rear-end exchangers respectively through a plurality of single-mode optical fibers, the two front-end exchangers are connected through a plurality of multimode optical fibers, and the two rear-end exchangers are connected through a plurality of multimode optical fibers. Network terminal devices connected with the exchangers are connected with the corresponding exchangers through six shielded twisted wires. According to the high-reliability highly-real-time ring network topology structure, reliability of a network system is improved, a unified platform is established, network communication resources are integrated, and the development cost is reduced.
Description
Technical field
The utility model belongs to the electronic computer communication technique field, is specifically related to a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system.
Background technology
Traditional control network system far away is not an independently system, but the control network subsystem far away of oneself is arranged in each subsystem, completes front and back end teleinstruction scheduling and transfer of data.Network topology adopts the direct-connected mode of single switch mostly, causes Single Point of Faliure, and reliability is low.
For solving the low problem of reliability, part prosecutor case far away has adopted the redundancy backup network system.But communicate by letter between each subsystem, still need to build other communication links or carry out interconnection, cause network topology complicated.Owing to adopting separately redundancy backup, cause the low utilization of resources, high cost simultaneously.
Summary of the invention
The purpose of this utility model is the defective that overcomes prior art, and a kind of highly reliable real-time network communication topology of suitable Long-distance Control is provided, and solves in traditional tele-control system network communication reliability low, the technical barrier that cost is high.
To achieve these goals, the technical solution of the utility model is: a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system, and as shown in Figure 2, front-end and back-end respectively configure two switches, and four exchange mechanisms circularize structure.The two front end switch of platform are connected to end switch after two platforms by many monomode fibers respectively, connect by many multimode fibers between end switch between the two front end switch of platform, after two platforms; The network-termination device that connects with switch is connected with corresponding switch by six type shielding twisted-pair feeders.
After described highly reliable high real-time loop network topological structure, end switch is root node configuration RSTP agreement, configuring the HSRP HSRP after two platforms between end switch, forms major-minor switch redundancy backup simultaneously.
The described different system that is connected with the front and back end switch is divided in independently VLAN the inside, according to VLAN configuration RSTP separately.
Described every the network-termination device that is connected with switch is all installed 2 network interface cards, and 2 network interface cards adopt the SFT pattern to connect respectively different switches.
Between the host exchange of described front and back end, between the two front end switch of platform, many optic fiber configureings connecting between end switch after two platforms are gigabit Ethernet passage GEC.
Described rear end platform switch can be connected with another rear end platform switch by many six type shielding twisted-pair feeders, is configured to simultaneously gigabit Ethernet passage GEC.
The utility model compared with prior art beneficial effect is: (1) is compared with direct-connected mode, and this topology adopts multiple redundancy backup mode greatly to improve the reliability of network system; (2) compare with the mode of single redundancy backup, this topology is built unified platform, and the integration networks communication resource has reduced development cost.
Description of drawings
Fig. 1 is traditional control network system topological diagram direct-connected far away.
Fig. 2 is a kind of highly reliable high real-time loop network topological structure schematic diagram that is applicable to remote power feeding system.
Fig. 3 is that later end switch C is as the topological structure schematic diagram of the root switch of VLAN1.
Fig. 4 is that later end switch D is as the topological structure schematic diagram of the root switch of VLAN2.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Traditional control network system topological diagram direct-connected far away adopts the direct-connected mode of single switch as shown in Figure 1, causes Single Point of Faliure, and reliability is low.
A kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system, as shown in Figure 2, front-end and back-end respectively configure two switches, and four exchange mechanisms circularize structure.Front end switch A, front end switch b are connected to the rear end switch C of rear end, rear end switch D by many monomode fibers respectively, connect by many lists/multimode fiber between two switches of front end, between the switch of two of rear ends; The network-termination device that connects with switch is connected with corresponding switch by six type shielding twisted-pair feeders.After above-mentioned network topology structure, end switch is root node configuration RSTP agreement, i.e. RSTP; Configuring the HSRP HSRP after two platforms between end switch, form major-minor switch redundancy backup simultaneously.
For reducing the possibility of different system key message collision, different subsystem information transfer channels are isolated as far as possible, therefore different system is divided in independently VLAN(virtual subnet) the inside, and can be according to VLAN configuration RSTP separately, as shown in Figure 3, Figure 4: later end switch C is as the root switch of VLAN1, the priority that is set to give tacit consent to; Rear end switch D is as the secondary root switch of VLAN1, be set to time high priority, and configuration HSRP HSRP between rear end switch C and rear end switch D, when root switch breaks down, the second priority switch switches to the root switch state, and generate new topological tree structure, to guarantee the continuity of network service; Adopt opposite configuration mode for VLAN2.Guarantee that like this transfer of data of VLAN1 and VLAN2 under normal circumstances is by different links, to realize the independence of communication, as shown in Figure 3, Figure 4.
Consider network communicating system to the specific (special) requirements of reliability, should guarantee as far as possible that each data channel accomplishes redundancy, stop single point failure.Therefore used two server network interface card binding technology (TEAM) in the present networks design, every the network-termination device that namely is connected with switch is all installed 2 network interface cards, 2 network interface cards connect respectively different switches, adopt SFT(Switch Fault Tolerance) pattern, when a network interface card breaks down or the switch that is attached thereto or circuit when breaking down, the SFT technology can switch to communication on an other network interface card automatically.
In order to improve the reliability of network communicating system, configuration gigabit Ethernet passage GEC between end switch between the host exchange of front and back end, before two platforms between end switch, after two platforms.GEC refers to Gigabit Ethernet Channel, and implication is the physical link more than two or two to be bundled into a logic use, and this process is transparent to the user.Use GEC to have the following advantages: (1) provides the high availability of circuit for interconnected equipment provides backup on circuit, and the failover time is very short, is transparent to the user; (2) on two physical circuits, the data flow is carried out load balancing, with random being assigned on every physical circuit of flow, thereby increase line bandwidth.
Rear end switch E is connected with switch D by many six type shielding twisted-pair feeders, realizes that is used for browsing a VLAN; Use separately a switch purpose for the limit information that will browse in its VLAN, do not affect front and back end communication.
The above to embodiment of the present utility model to having done detailed description, above-mentioned execution mode is only optimum embodiment of the present utility model, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also make various variations under the prerequisite that does not break away from the utility model aim.
Claims (6)
1. highly reliable high real-time loop network topological structure that is applicable to remote power feeding system, it is characterized in that front-end and back-end respectively configure two switches, four exchange mechanisms circularize structure, the two front end switch of platform are connected to end switch after two platforms by many monomode fibers respectively, connect by many multimode fibers between end switch between the two front end switch of platform, after two platforms; The network-termination device that connects with switch is connected with corresponding switch by six type shielding twisted-pair feeders.
2. a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system as claimed in claim 1, after it is characterized in that, end switch is root node configuration RSTP agreement, configuring the HSRP HSRP after two platforms between end switch, form major-minor switch redundancy backup simultaneously.
3. a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system as claimed in claim 2, is characterized in that the different system that is connected with the front and back end switch is divided in independently VLAN the inside, according to VLAN configuration RSTP separately.
4. a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system as claimed in claim 1, it is characterized in that every the network-termination device that is connected with switch all installs 2 network interface cards, 2 network interface cards adopt the SFT patterns to connect respectively different switches.
5. a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system as claimed in claim 1, it is characterized in that between the host exchange of front and back end, between the two front end switch of platform, many optic fiber configureings connecting between end switch after two platforms are gigabit Ethernet passage GEC.
6. a kind of highly reliable high real-time loop network topological structure that is applicable to remote power feeding system as claimed in claim 1, it is characterized in that rear end platform switch can be connected with another rear end platform switch by many six type shielding twisted-pair feeders, is configured to gigabit Ethernet passage GEC simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220539309.4U CN202949446U (en) | 2012-10-22 | 2012-10-22 | High-reliability highly-real-time ring network topology structure suitable for remote-control system |
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| CN201220539309.4U CN202949446U (en) | 2012-10-22 | 2012-10-22 | High-reliability highly-real-time ring network topology structure suitable for remote-control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610555A (en) * | 2016-02-19 | 2016-05-25 | 北京宇航系统工程研究所 | Practical system-level redundant communication network architecture |
| CN111131933A (en) * | 2019-12-13 | 2020-05-08 | 中航光电科技股份有限公司 | FC dual-redundancy switch configuration management device and configuration management method |
-
2012
- 2012-10-22 CN CN201220539309.4U patent/CN202949446U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610555A (en) * | 2016-02-19 | 2016-05-25 | 北京宇航系统工程研究所 | Practical system-level redundant communication network architecture |
| CN105610555B (en) * | 2016-02-19 | 2019-01-25 | 北京宇航系统工程研究所 | A kind of practical system-level redundancy communication network framework |
| CN111131933A (en) * | 2019-12-13 | 2020-05-08 | 中航光电科技股份有限公司 | FC dual-redundancy switch configuration management device and configuration management method |
| CN111131933B (en) * | 2019-12-13 | 2022-07-12 | 中航光电科技股份有限公司 | FC dual-redundancy switch configuration management device and configuration management method |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130522 |