CN106533877A - One-way transmission ring of Ethernet - Google Patents
One-way transmission ring of Ethernet Download PDFInfo
- Publication number
- CN106533877A CN106533877A CN201510938893.9A CN201510938893A CN106533877A CN 106533877 A CN106533877 A CN 106533877A CN 201510938893 A CN201510938893 A CN 201510938893A CN 106533877 A CN106533877 A CN 106533877A
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- nodes
- ethernet
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- node
- transmission ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention provides a one-way transmission ring of an Ethernet. The one-way transmission ring is constructed based on a simplex channel and belongs to the technical field of the data transmission technique for computer Ethernet networks, wherein the number of nodes is 3 or more. According to the technical scheme of the invention, the simplex channel is adopted to form a ring with an opening, and then a pseudo-duplex channel is formed. In this way, controlled transmission equipment, such as a gatekeeper and the like, can be formed. The unidirectional communication capability is only enabled between the equipment of any two adjacent nodes without the cooperation of other nodes. However, the communication capability is not realized between the equipment of any two non-adjacent nodes without the cooperation of other nodes. The above two nodes are divided into two sides and network equipment on one side cannot be broken through from the other side without the cooperation of other nodes. Therefore, the network formed based on the connection of the one-way transmission ring has completely different characteristics from a conventional network in the general sense, wherein not only the one-way filtering and controlling of data packets (3 nodes) is realized, but also the bidirectional filtering and controlling of data packets (4 nodes) is also realized.
Description
First, technical field
The invention belongs to data transfer (transmission) the technology neck in computer Ethernet (Ethernet)
Domain.
2nd, background technology
In Ethernet, the data link (link) between communicating pair A and B is by duplex physically
(duplex) passage composition, duplex channel can both be full duplex (full duplex) passage (as now greatly
Two pairs of twisted-pair feeders and two core optical cables that amount is used), alternatively half-duplex (half duplex) passage was (as once
The coaxial cable for using in a large number and single fiber cable), one end sends other end reception or one end receives another in turn
End sends, and has two-way communication (bidirectional communication) between communicating pair A and B
Ability.
3rd, the content of the invention
If the duplex channel of Ethernet is changed into either simplex (simplex) passage, communicating pair just no longer has
Two-way communications capabilities, and can only be with the one-way communication ability from A to B or from B to A.One-way communication is
One double-edged sword, on the one hand, one-way communication has fabulous confidentiality, such as, it can make A (Low Security Level meters
Calculation machine) in information transmission in B (High Security Level computer), but the information in B (High Security Level computer)
Anyway all without leaking in A (Low Security Level computer)；On the other hand, the unipolarity of its transmission causes
Can not possibly there is feedback information, thus be inevitably present critical defect in reliability.Modern Ethernet
Technology is built upon on duplex channel, and its upper layer communication is also all two-way, artificial formation on this basis
Some so-called " unidirectional " communications be logic, and and non-physical.Therefore, when some " are declared "
Only carry out one-way communication the network equipment be broken after, its " unidirectional " property is difficult to obtain real guarantee.
Ethernet one-way transmission ring of the present invention is a kind of Ethernet annular delivery dress constituted based on channel simplex
Put (hereinafter referred to as transmit ring), be by two rightabout channel simplex in Ethernet (in electrical transmission
Twisted-pair feeder, the optical cable in optical transport or the PECL holding wires in its opto-electronic conversion link) separate, and increase
One or more nodes, according to the transmission direction of passage, are forward connected, such as in accompanying drawing Fig. 1 and Fig. 2 in dotted line
The direction of arrow shown in, be formed at node and there is the loop configuration of opening.So, at each node,
All it is a pseudo- duplex channel.Arbitrarily non-conterminous two nodes A and B is chosen on ring, if by opening at other nodes
Mouthful " closed ", then be exactly the full-duplex channel under an ordinary meaning between A, B；If other nodes
" closed " is controlled, then with regard to constituting controlled " full duplex " passage between A, B.This
In the case of, the network equipment being connected on transmission ring interface has controlled communication capacity, can be used to manufacture net
The network equipments such as lock.Specifically, the equipment for being connected to any two adjacent sections point A and B of transmission ring is not having
Have under the cooperation of other nodes, only there is one-way communication ability；It is connected to any non-conterminous two section of transmission ring
The equipment of point A and B under the cooperation for not having other nodes, not with communication capacity.If A, B are drawn respectively
It is divided into both sides, then the network equipment on side, under the cooperation for not having other nodes, it is impossible to from another
Side is broken.Have completely not by the network transmitted under the network and ordinary meaning that ring is interconnected to form
Same characteristic, is both capable of achieving the unidirectional filtration and control (3 node) of packet, is also capable of achieving the double of packet
To filtration and control (4 node).As nodes increase, safety also increases.
4th, illustrate
Nodes are typical application drawing such as accompanying drawing Fig. 1 and Tu respectively of 3 and 4 transmission ring and its derived product
Shown in 2.Wherein, the node that represents on ring of solid line small circle and the interface of node external connection of letter is indicated,
Transmission ring itself is represented by the large circle that dotted line is formed, grey rectangle part represents and is made up of transmission ring
The gateway with unidirectional or bi-directional filtered function, gateway externally provides A, B two interfaces.
5th, specific embodiment
Specific embodiment is shown in accompanying drawing, connects under formed exchanged form and ordinary meaning by this way
Network exchange has diverse characteristic, for example, can with the one-way transmission ring that 3 optical transceivers are constituted
Realize the unidirectional filtration and control of packet；Packet is capable of achieving with the one-way transmission ring that 4 optical transceivers are constituted
It is bi-directional filtered and control.
Under 3 node modes (Fig. 1), A interfaces connect external network, can connect the Internet；In B interface connects
Portion's network directly connects inner computer；C interface connects defecator.When the computer of internal network passes through interface
When B is to outside transmission packet, all of bag will all be sent to node C, be connected to the defecator of interface C
These packets will be received, if allowing which to pass through, just sends same packet to turn using to this node
These packets are sent out, the packet for forwarding will be sent to external node A.
Under 4 node modes (Fig. 2), the connection of tri- interface of A, B, C is identical with the connection of 3 node modes,
D interface connects another defecator, can be transmitted ring intercommunication between C, D.In this case, remove
Outside packet from internal network to external network being filtered, can also be to from external network to interior
The packet of portion's network is filtered.
Claims (4)
1. it is a kind of to be based on the Ethernet one-way transmission ring that channel simplex (simplex channel) is constituted, by list
Work passage and node two parts composition, is characterized in that nodes are more than or equal to 3；(internal) shape between node
Into a channel simplex ring at node with opening；Each node has for sending to ring and connecing from ring
Receive (external) interface of Ethernet data.
2. Ethernet one-way transmission ring according to claim 1, its channel simplex are electric channel
(electronic channel) or optical channel (optic channel).
3. Ethernet one-way transmission ring according to claim 1, the external interface of its node for it is single with
Too net network interface or multiple Ethernet network interfaces.
4. Ethernet one-way transmission ring according to claim 1, adds in one or more seam
Soft and hardware equipment, abandons, forwards to the packet which receives, changing and individual reception and transmission
Deng the network equipment such as formation gateway.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210455135.1A CN114915459B (en) | 2015-12-17 | 2015-12-17 | Annular transmission device |
| CN201510938893.9A CN106533877A (en) | 2015-12-17 | 2015-12-17 | One-way transmission ring of Ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938893.9A CN106533877A (en) | 2015-12-17 | 2015-12-17 | One-way transmission ring of Ethernet |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210455135.1A Division CN114915459B (en) | 2015-12-17 | 2015-12-17 | Annular transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106533877A true CN106533877A (en) | 2017-03-22 |
Family
ID=58348860
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210455135.1A Active CN114915459B (en) | 2015-12-17 | 2015-12-17 | Annular transmission device |
| CN201510938893.9A Pending CN106533877A (en) | 2015-12-17 | 2015-12-17 | One-way transmission ring of Ethernet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210455135.1A Active CN114915459B (en) | 2015-12-17 | 2015-12-17 | Annular transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114915459B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365669A (en) * | 2019-07-05 | 2019-10-22 | 郭爱波 | Unidirectional ether gateway |
| CN110768997A (en) * | 2019-10-30 | 2020-02-07 | 北京永亚普信科技有限责任公司 | U-shaped magnet network access system and method based on one-way transmission protocol |
| CN110768996A (en) * | 2019-10-30 | 2020-02-07 | 北京永亚普信科技有限责任公司 | Multi-IP address mapping binding system and method based on one-way isolation equipment |
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| CN203482233U (en) * | 2013-03-28 | 2014-03-12 | 施国君 | Direct connection type unidirectional optical fiber physical isolation shutter |
| CN104301306A (en) * | 2014-09-22 | 2015-01-21 | 江苏飞搏软件技术有限公司 | System used for calling intranet services safely through Internet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110365669A (en) * | 2019-07-05 | 2019-10-22 | 郭爱波 | Unidirectional ether gateway |
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| CN110768997A (en) * | 2019-10-30 | 2020-02-07 | 北京永亚普信科技有限责任公司 | U-shaped magnet network access system and method based on one-way transmission protocol |
| CN110768996A (en) * | 2019-10-30 | 2020-02-07 | 北京永亚普信科技有限责任公司 | Multi-IP address mapping binding system and method based on one-way isolation equipment |
| CN110768997B (en) * | 2019-10-30 | 2022-02-08 | 北京永亚普信科技有限责任公司 | U-shaped magnet network access system and method based on one-way transmission protocol |
| CN110768996B (en) * | 2019-10-30 | 2022-02-08 | 北京永亚普信科技有限责任公司 | Multi-IP address mapping binding system and method based on one-way isolation equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114915459B (en) | 2024-05-24 |
| CN114915459A (en) | 2022-08-16 |
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| DD01 | Delivery of document by public notice |
Addressee: Guo Aibo Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |