CN103957120A - Technique for inhibiting optical fiber broadband broadcast storm - Google Patents
Technique for inhibiting optical fiber broadband broadcast storm Download PDFInfo
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- CN103957120A CN103957120A CN201410175369.6A CN201410175369A CN103957120A CN 103957120 A CN103957120 A CN 103957120A CN 201410175369 A CN201410175369 A CN 201410175369A CN 103957120 A CN103957120 A CN 103957120A
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Abstract
The invention provides a technique for inhibiting an optical fiber broadband broadcast storm. In power line carrier transmission, data monitoring is carried out, a server end scans an IP address in a network in a barcode scanning mode, and the format of data signal transmission of scanned barcodes includes a physical layer signal, a transmission layer and an application layer; differential Manchester encoding is adopted in a physical layer; a full duplex serial transmission mode is adopted in the transmission layer, a frame synchronization serial transmission protocol serves as a protocol of handshaking of double parties, frame synchronization transmission is provided with a start symbol and a stop symbol so that data transmission can be detected and controlled, and CRC examination characters are set up to verify transmission mistakes; a command format code is packed through the application layer, and the application layer is used for packing data transmitted each time so that execution actions of the receiving party can be specified. It can be guaranteed that a user surfs the Internet safely and stably and the network speed is smooth, the broadcast storm problem of a scale cell is solved, and meanwhile, interference and conflicts caused by the fact that signals are alternately transmitted in the same cell by different network operators can be eliminated.
Description
Technical field
The invention belongs to Internet technical field, relate to a kind of technology that suppresses fiber broadband broadcast storm.
Technical background
Development along with Internet industry, the Internet enters large-scale residential quarters, because the Internet trunk is when carrying out networking, because Web broadcast reason can cause network failure, the broadcast storm described in, the reason that produces broadcast storm is a lot, based in prior art about hub, the design principle of switch, the reason that network produces broadcast storm mainly contains following several: 1, network equipment reason: may be cheated by sellers because of hardware, by intelligent Hub in return machine use in network, when network is busy a little like this, produce broadcast storm, 2, network interface card damages: if the network interface card of net machine damages, do not stop to send a large amount of packets to switch, produced a large amount of useless packets, produce broadcast storm, 3, network loop: due to the two ends of a physical network circuit, be connected in a network equipment simultaneously and produced broadcast storm, 4, internet worm: at present, the internet worm that some are popular, the viruses such as Funlove, Sasser, RPC, once after having machine poisoning, can propagate by network immediately, the network bandwidth that loss is a large amount of, causes network blockage, causes broadcast storm, 5, the use of hacker software, these hacker software are attacked the internal network of Internet bar, and network also may cause broadcast storm.In existing the Internet, for the relaying that network is interconnected (relay) system, according to the level at relay system place, be divided into 1. physical layers (namely what is often called ground floor, layer L1) relay system, i.e. transponder (repeater); 2. data link layer (be the second layer, layer L2), i.e. bridge or bridger (bridge); 3. network layer (the 3rd layer, layer L3) relay system, i.e. router (router); 4. the mixture brouter (brouter) of bridge and router has the function of bridge and router concurrently; 5. the relay system more than network layer, be gateway (gateway), the basic function of the router in relay system is that data (IP message) are sent to correct network, comprising: the forwarding of 1.IP datagram, and what comprise datagram seeks footpath and transmission; 2. subnet isolation, suppresses broadcast storm; 3. maintaining routing list, and with other routers exchange routing iinformations, this is the basis of IP message repeating.The mistake of 4.IP datagram is processed and simple congestion control; 5. realize the filtration of IP datagram and record keeping, in existing network monitor technology, thereby cannot scan and reach inhibition broadcast storm for IP.
Summary of the invention
For defect and the problem of prior art, the present invention is directed to the community user of local area network (LAN), thereby carry out scanning barcode, reach a kind of technology that suppresses fiber broadband broadcast storm that suppresses broadcast storm.
In order to achieve the above object, the invention provides following technical scheme: a kind of technology that suppresses fiber broadband broadcast storm, in power line carrier transmission, carry out data monitoring, server end adopts scanning barcode mode to scan to the IP address in network, the form of the data-signal transmission of scanning barcode is divided into physical layer signal, transport layer and application layer, wherein physical layer adopts Differential Manchester Encoding, transport layer is full duplex serial transmission mode, the agreement that adopts frame synchronization serial transmission protocol to shake hands as both sides, frame synchronization transmission is set up beginning flag and stops indicating to detect and control data transmission, and set up crc check word to carry out verification error of transmission, application layer Envelope command form type code, for encapsulating the object of each transmission data, with performing an action of intended receiver.
In technique scheme, in network operation process, server end is set up main thread and is generated watcher thread simultaneously, scanning thread, finger daemon, main thread is processed the hardware mac address in access network and IP address, hardware MAC and IP address are bound, untapped IP address can bundle with non-existent MAC Address binding, scanning thread generates scanning barcode instruction, hardware in access network is scanned, with specific character order, the data flow in network is uninterruptedly scanned, monitor process is monitored the data that scanning barcode instruction is returned in network, as watcher thread is received the information of transmitting the data congestion of feedback in network, feed back to immediately server end demons and carry out network operation.
In technique scheme, the providing as follows of described frame format:
4) initial/stop banner word: indicate one section of complete data frame, tab character is 01111110, is the border of Frame, and receiving terminal can be found out beginning and the end of frame by search " 01111110 ", with this, sets up frame synchronization;
5) command word: for the operational order to data is set, command word form is 1100xxxx.Default to 11000000, represent only for transfer of data is without any operation.The type of operational word comprises the command bytes such as deciphering, authentication, binding, encryption and digital signature, in command byte, binding byte can be bound hardware MAC and IP address, untapped IP address can be bound with non-existent MAC Address, guarantee the impact that community user is not noticed by malice APR, digital signature can provide and set for different networks, in transfer of data, by digital signature, judge, guarantee that interference and the conflict that signal does not produce alternately occurs in same community in heterogeneous networks operator.
6) information word: for data pending or that handle well;
7) check code: frame check is 8 CRC check.Except start/stop banner word and automatic " 0 " of inserting, all information is all participated in CRC and is calculated.
Implement technical scheme of the present invention, there is following beneficial effect: the impact that the present invention utilizes power line not to be subject to the impact of voltage fluctuation and not increased by community user flow as the scanning barcode technology of carrier, do not substitute, guarantee the safety that user surfs the Net, stable smooth with network speed, not only solved the broadcast storm problem of scale community, and can solve interference and the conflict that signal generation alternately occurs in same community in heterogeneous networks operator, even especially for the broadcast storm causing because of virus, can be by dividing the mode of address, the transmission of restriction and preventing virus, avoid causing periods of network disruption because of broadcast storm.
Embodiment
Below technical scheme of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As embodiment 1, a kind of technology that suppresses fiber broadband broadcast storm provided by the present invention, in power line carrier transmission, carry out data monitoring, to the IP address in network, adopt scanning barcode mode to scan, the form of the data-signal transmission of scanning barcode is divided into physical layer signal, transport layer and application layer, wherein physical layer adopts Differential Manchester Encoding, transport layer is full duplex serial transmission mode, the agreement that adopts frame synchronization serial transmission protocol to shake hands as both sides, frame synchronization transmission is set up beginning flag and stops indicating to detect and control data transmission, and set up crc check word to carry out verification error of transmission, application layer Envelope command form type code, for encapsulating the object of each transmission data, with performing an action of intended receiver.
Providing as follows of described transmission frame format:
8) initial/stop banner word: indicate one section of complete data frame, tab character is 01111110, is the border of Frame, and receiving terminal can be found out beginning and the end of frame by search " 01111110 ", with this, sets up frame synchronization;
9) command word: for the operational order to data is set, command word form is 1100xxxx.Default to 11000000, represent only for transfer of data is without any operation.The type of operational word comprises the command bytes such as deciphering, authentication, binding, encryption and digital signature, in command byte, binding byte can be bound hardware MAC and IP address, untapped IP address can be bound with non-existent MAC Address, guarantee the impact that community user is not noticed by malice APR, digital signature can provide and set for different networks, in transfer of data, by digital signature, judge, guarantee that interference and the conflict that signal does not produce alternately occurs in same community in heterogeneous networks operator.
10) information word: for data pending or that handle well;
11) check code: frame check is 8 CRC check.Except start/stop banner word and automatic " 0 " of inserting, all information is all participated in CRC and is calculated.
In use also have following regulation:
| Opening flag | Command word | Information word (0～n) | Check code | Stop sign |
| 01111110 | ? | ? | CRC | 01111110 |
| 8bit | 8bit | 8bit×n | 8bit | 8bit |
1) " 0 " position is inserted/is deleted: in information word, comprise character " 01111110 " or adjacent character and form " 01111110 " character pattern, take " 0 " position to insert and deleting technique.Specific practice be transmitting terminal send all information (except initial/stop banner word) time, as long as run into continuous 5 " 1 ", automatically insert one " 0 "; When receiving terminal (except start/stop flag byte) when receiving data, if receive continuously 5 " 1 ", just automatically one " 0 " is thereafter deleted, to recover original form of information.
2) abnormal ending: if there is mistake in process of transmitting, with inefficacy character, this frame is cancelled.7 above continuous " 1 " are regarded as the character that lost efficacy.In inefficacy character string, do not use " 0 " position insertion/deleting technique.
3) at a frame, with interior, do not allow to occur data break.Between two Frames, delivery section can send 0 continuous character, and 8 above 0 continuous characters are considered as idle signal.
Technical solution of the present invention is applied to the Internet access of power carrier, can be applied in house, the network monitoring of the communities such as building, in network operation process, server end is set up main thread and is generated watcher thread simultaneously, scanning thread, finger daemon, main thread is processed the hardware mac address in access network and IP address, hardware MAC and IP address are bound, untapped IP address can bundle with non-existent MAC Address binding, scanning thread generates scanning barcode instruction, hardware in access network is scanned, with specific character order, the data flow in network is uninterruptedly scanned, monitor process is monitored the data that scanning barcode instruction is returned in network, as watcher thread is received the information of transmitting the data congestion of feedback in network, feed back to immediately server end demons and carry out network operation, can avoid producing like this generation of broadcast storm.
The technology of inhibition fiber broadband broadcast storm of the present invention, in conjunction with the hardware devices such as electric network bridge for accessing after electric supply meter, can increase the stability of transfer of data, allows the automatic encipherment protection of data transmission.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection range with claim.
Claims (3)
1. a technology that suppresses fiber broadband broadcast storm, it is characterized in that: in power line carrier transmission, carry out data monitoring, server end adopts scanning barcode mode to scan to the IP address in network, the form of the data-signal transmission of scanning barcode is divided into physical layer signal, transport layer and application layer, wherein physical layer adopts Differential Manchester Encoding, transport layer is full duplex serial transmission mode, the agreement that adopts frame synchronization serial transmission protocol to shake hands as both sides, frame synchronization transmission is set up beginning flag and stops indicating to detect and control data transmission, and set up crc check word to carry out verification error of transmission, application layer Envelope command form type code, for encapsulating the object of each transmission data, with performing an action of intended receiver.
2. a kind of technology that suppresses fiber broadband broadcast storm according to claim 1, it is characterized in that: in network operation process, server end is set up main thread and is generated watcher thread simultaneously, scanning thread, finger daemon, main thread is processed the hardware mac address in access network and IP address, hardware MAC and IP address are bound, untapped IP address can bundle with non-existent MAC Address binding, scanning thread generates scanning barcode instruction, hardware in access network is scanned, with specific character order, the data flow in network is uninterruptedly scanned, monitor process is monitored the data that scanning barcode instruction is returned in network, as watcher thread is received the information of transmitting the data congestion of feedback in network, feed back to immediately server end demons and carry out network operation.
3. a kind of technology that suppresses fiber broadband broadcast storm according to claim 2, is characterized in that: the providing as follows of described frame format:
1) initial/stop banner word: indicate one section of complete data frame, tab character is 01111110, is the border of Frame, and receiving terminal can be found out beginning and the end of frame by search " 01111110 ", with this, sets up frame synchronization;
2) command word: for the operational order to data is set, command word form is 1100xxxx.Default to 11000000, represent only for transfer of data is without any operation.The type of operational word comprises the command bytes such as deciphering, authentication, binding, encryption and digital signature, in command byte, binding byte can be bound hardware MAC and IP address, untapped IP address can be bound with non-existent MAC Address, guarantee the impact that community user is not noticed by malice APR, digital signature can provide and set for different networks, in transfer of data, by digital signature, judge, guarantee that interference and the conflict that signal does not produce alternately occurs in same community in heterogeneous networks operator.
3) information word: for data pending or that handle well;
Check code: frame check is 8 CRC check.Except start/stop banner word and automatic " 0 " of inserting, all information is all participated in CRC and is calculated.
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| CN201410175369.6A CN103957120A (en) | 2014-04-28 | 2014-04-28 | Technique for inhibiting optical fiber broadband broadcast storm |
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| CN110336680A (en) * | 2019-06-28 | 2019-10-15 | 苏州浪潮智能科技有限公司 | A kind of Web broadcast control method, system and electronic equipment and storage medium |
| CN115941534A (en) * | 2022-12-08 | 2023-04-07 | 贵州电网有限责任公司 | Network storm source tracing method for local area network of power system |
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| CN115941534A (en) * | 2022-12-08 | 2023-04-07 | 贵州电网有限责任公司 | Network storm source tracing method for local area network of power system |
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