KR102026812B1 - System and method for providing trusted network quality based on block chain - Google Patents

Abstract

The present invention relates to a system and a method for providing reliable network quality based on a block chain. More specifically, The system for providing network quality reliability based on a block chain comprises: a plurality of network devices to form membership based on a block chain, measure network quality, and determine contract compliance; and an agreement server to select a plurality of second network devices as endorse nodes for determining contract compliance of quality measurement information requested for an agreement among the plurality of network devices to request determination of contract compliance if an agreement request for quality measurement information measured by a first network to be measured among the plurality of network devices is received from the first network device, and request the plurality of network devices to record the quality measurement information requested for an agreement in a ledger if the contract compliance determined by the second network devices is agreed.

Description

System and method for providing trusted network quality based on block chain

The present invention relates to a system and method for providing reliable network quality based on blockchain.

More specifically, a plurality of network devices that form membership based on the blockchain and perform network quality measurement and contract compliance determination, and are measured by the first network device from a first network device that is a measurement target of the plurality of network devices. Upon receiving an agreement request for the quality measurement information, a plurality of second network devices are selected to be an endorse node that determines whether the agreement of the requested quality measurement information is in compliance with the contract. And a consensus server for requesting a determination of whether or not to agree, and if agreement of compliance with the second network apparatus is agreed, requesting the plurality of network apparatuses to record the agreed quality measurement information in the ledger. A chain based network quality trust providing system.

Recently, as the rapid growth of the telecommunications service market has calmed down and the demand has reached a saturation state, competition among operators in the telecommunications service market has become more intense. Accordingly, rather than creating new market demands, the main strategy of marketing is to prevent departure from existing customers and attract competitors' customers.

The rate competition is fierce due to competition among operators in accordance with the change of market conditions, but the method is limited due to the financial burden of operators due to the competition of rates. Therefore, we are entering the era of quality competition through the enhancement of service between operators. The communication quality of the service provided to the customer should be regularly monitored to minimize the customer's complaints by preventing the quality from deteriorating.

In order to maintain a certain level of quality of the communication service, it is essential to introduce a systematic and automated service level agreement (SLA) assurance system.

Service level agreement (SLA) means that a service provider enters into an agreement with a subscriber to provide a predefined level of service.

In general, such a service level agreement is established by the subscriber's acceptance of items unilaterally specified by the Internet service provider. As a related patent document, there is Korea Patent Publication No. 10-2007-0061298. Korean Laid-Open Patent Publication No. 10-2007-0061298 may generate and provide statistical data on whether communication quality provided to a user violates SLA based on accumulated communication quality data. However, it is not possible to determine whether the communication quality accumulated in the measurement is reliable measurement information.

In addition, subscribers will not be able to verify that these items are being followed properly, and subscribers will not trust the service level agreements specified by the Internet service provider.

In addition, due to the ambiguity of quality assurance items and the difficulty of accurate evaluation of communication quality, service providers cannot easily cope with subscribers' quality assurance requirements.

Accordingly, in order to increase the satisfaction of both the service subscriber and the provider, it is required to increase the reliability of the quality assurance items presented in the service level agreement and to accurately evaluate the subscriber network communication quality.

1. Korean Patent Publication No. 10-2007-0061298 (June 13, 2007)

An object of the present invention is to provide a blockchain-based network quality trust providing system and method that can provide reliability by measuring network quality through a membership node formed on the basis of a blockchain, and recording a reliable agreement result in a common ledger. To provide.

The blockchain-based network quality trust providing system according to an embodiment of the present invention for achieving the above object forms a membership based on the blockchain, and a plurality of networks for performing network quality measurement and contract compliance determination. When a request for agreement on quality measurement information measured at the first network device is received from a first network device, which is a measurement target among devices and the plurality of network devices, the contract compliance of the agreed quality measurement information among the plurality of network devices is satisfied. A plurality of second network devices are selected as an endorse node for determining whether to request the contract compliance, and if the contract compliance determined by the second network device is agreed, the agreement is made with the plurality of network devices. It may include a consensus server requesting to record the requested quality measurement information in the ledger.

The plurality of network apparatuses may include a sender configured to transmit a test packet for network quality measurement to a membership node, calculate a network KPI using the received response packet, and receive a hash value from the membership node that transmitted the response packet; A response packet is transmitted to the test packet received from the first network device, the hash value of the sender is calculated from the sender, and the sender is sent to the first network device. Request agreement by sending quality measurement information including the agreement to the agreement server, and when receiving the quality measurement information about the first network device from the agreement server, the agreement is compared with the contract conditions of the first network device recorded in the smart contract ledger. Each blockchain node that determines compliance can be included.

In addition, each of the blockchain-based membership node may further include a ledger including a smart contract ledger that records a service level agreement (SLA) and a quality ledger that records quality measurement information.

At this time, the blockchain node, when receiving the agreement request from the consensus server, trusts the sender hash value and reflector hash value included in the received quality measurement information matches the hash value recorded in the smart contract ledger and the KPI value. By comparing contract terms, you can judge compliance.

In addition, the consensus server, if the ratio of compliance or non-compliance received from the second network device is more than the preset ratio, and judges the agreement to request the membership node to record the agreement result in the ledger, and if the determined agreement result is non-compliance It can be notified by the management server and network user terminal.

On the other hand, the blockchain-based network of the system that forms a membership based on the blockchain, and includes a consensus server that determines the agreement on the quality measurement of the network devices and network devices for performing network quality measurement and contract compliance determination How to provide quality trust

Receiving, by the consensus server, a consensus request for quality measurement information measured by the first network apparatus from a first network apparatus to be measured among the plurality of network apparatuses, wherein the consensus server is configured to execute the consensus server. Selecting a plurality of second network devices as an endorse node for determining whether the contracted quality measurement information is in compliance with the contract, and the consensus server requesting the selected second network device to determine whether to comply with the contract. Step, the consensus server, and receiving the agreement of the agreement determined by the second network device to determine the agreement, and if the agreement server, the agreement, the plurality of network devices to record the agreed quality measurement information to the ledger Requesting to include.

The receiving of the agreement request may include: sending, by a sender of the first network device, a test packet for measuring network quality to a reflector of a membership node, by a sender of the first network device, and received by the sender of the first network device. Calculating a network KPI using the response packet, wherein the sender of the first network device requests and receives a reflector hash value of the membership node that transmitted the response packet, and the sender of the first network device Calculating a hash value of the first network device and transmitting the quality measurement information including a hash value of the sender, a KPI for each membership node, and a reflector hash value to the consensus server to request an agreement It may include.

In addition, when the blockchain node of the second network device receives the agreement request from the agreement server, if the sender hash value and the reflector hash value included in the received quality measurement information match the hash value recorded in the smart contract ledger, The method may further include comparing the KPI value and the contract condition to determine compliance.

The determining of the agreement may be determined by agreement if the ratio of compliance or non-compliance received from the second network apparatus is equal to or greater than a preset ratio.

The method may further include informing the management server and the network user terminal if the determined agreement result is not compliant.

As described above, the blockchain-based network quality trust providing system and method thereof of the present invention obtain a quality measurement result through a consensus process when measuring the quality of a network device to be measured, and record the result in a common ledger to establish a trust environment. Can provide.

In addition, the service level agreement is written in the smart contract ledger by discussing the limitations between the service provider and the subscriber, and the compliance of the sender and the reflector used in the quality measurement matches the smart contract ledger's hash value only. By judging, only reliable quality measurement information can be used.

In other words, it is possible to solve the problem of the subscriber not trusting the service level agreement specified by the Internet service provider, and to prevent the dispute related to the service level agreement between the service provider and the subscriber if the quality assurance items set forth in the service level agreement are not observed. have.

In addition, if the measured quality measurement information does not comply with the service faucet agreement, it can be notified and informed to the management server and the network user terminal.

1 is a block diagram showing a schematic configuration of a blockchain-based network quality trust providing system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the configuration of the network device of FIG.
3 is a flowchart illustrating a blockchain based network quality trust providing method according to an embodiment of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be water and variations.

Before describing the present invention with reference to the drawings, it is not shown or specifically described for the matters that are not necessary to reveal the gist of the present invention, that is, those skilled in the art can obviously add. Make a note.

1 is a block diagram showing a schematic configuration of a blockchain-based network quality trust providing system according to an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the network device of FIG. 3 is a flowchart illustrating a blockchain based network quality trust providing method according to an embodiment of the present invention.

1 and 2, a blockchain-based network quality trust providing system (hereinafter, referred to as a system) according to an embodiment of the present invention includes a plurality of network devices 100: 100a to form membership based on blockchain. 100n) and the consensus server 200 may be included.

In this case, the plurality of network devices 100: 100a to 100n may be an access point (AP), a gateway, a router, a bridge, a repeater, a hub, and the like, which can provide Internet use through an Internet service provider.

That is, in addition to the network function, the plurality of network apparatuses 100: 100a to 100n may perform a function of determining quality compliance and SLA compliance. Alternatively, the device may be connected to a network device that performs a basic network function through a connector to provide a function for determining quality measurement and service level agreement (SLA) compliance.

Referring to FIG. 2, the plurality of network devices 100: 100a to 100n of the present invention may include a sender 110, a reflector 120, a blockchain node 130, and a ledger 140, respectively. 140 is a smart contract ledger 141 that records a service level agreement (SLA) for each network device (100: 100a to 100n) and a quality measurement ledger (142) that records real-time quality measurement information for the network devices (100: 100a to 100n). ) May be provided as common ledgers, respectively.

Meanwhile, the system of the present invention manages a plurality of network devices (100: 100a to 100n) on a blockchain basis to determine quality measurement and compliance with a service level agreement, and a plurality of network devices (100: 100a to 100n). The first network device 100a, which is a measurement target, among the membership nodes 100b to 100n which perform a test for measuring the quality of the first network device 100a, and the first network device 100a among a plurality of network devices. A plurality of second network devices 100c ˜ 100h selected as endorse nodes that determine whether the requested quality measurement information is in compliance with the contract may be classified.

At this time, the specific network device 100 becomes the first network device 100a at the time of quality measurement, becomes the membership nodes 100b to 100n at the time of performing the test, and the second network device 100c to 100h when selected as the lead node. Can be performed.

In detail, referring to FIG. 1, the configuration of the first network device 100a, the membership nodes 100b to 100n, and the second network devices 100c to 100h when driven is shown. Omitted. 1 to 3, the functions and operations of the first network device 100a, the membership nodes 100b to 100n, and the second network devices 100c to 100h may be described.

The first network apparatus 100a may perform quality measurement based on the sender 100a and the blockchain node 130a.

The sender 100a may transmit a test packet for quality measurement to the reflectors 120b to 120n of the membership nodes 100b to 100n except for the self (S310), and receive a response packet from the reflectors 120b to 120n. (S320).

The sender 100a may calculate the KPI using the received response packet (S330). KPIs include Lost Packets, Duplicate Packets, Out of Order Packets, Jitter (Packet Delay Variation, IP Delay Variation), PDV (ITU-T Y.1540 standard), IPDV (RFC-3550 standard), inter delay time (delay time by TWAMP responder) and response delay (delay) / delay and TTL may be included.

In addition, the sender 100a requests a hash value of the reflectors 120b to 120n transmitting the test packet through a channel separate from the test execution channel (S340), and sends the hash value calculated by the reflectors 120b to 120n. Can be received (S350, S360). In addition, the sender 100a may calculate its own hash value through a direct or external hash calculation program (S370).

In addition, the sender 100a may transmit the calculated KPI value, the reflector hash value, and its own hash value to the blockchain node 130a of the same network device, that is, the first network device 100a.

The blockchain node 130a generates a calculated KPI value, a reflector hash value, a hash value of the sender 100a, a sender 100a mac address, and a reflector mac address in order of time stamps. The quality measurement information may be transmitted to the agreement server 200 to request an agreement (S380, S390).

In addition, when the blockchain node 130a is requested to record the agreed quality measurement information from the agreement server 200, the blockchain node 130a may record the agreed quality measurement information in its own quality measurement ledger 142a.

 The membership nodes 100b to 100n may perform a quality measurement test around the reflectors 110b to 110n. That is, the membership nodes 100b to 100n may transmit a response packet when receiving the test packet from the sender 110a of the first network device 100a. In addition, when the hash value request is received from the sender 110a, the hash value may be calculated and transmitted to the sender 110a directly or through an external hash calculation program.

Whether the second network devices 100c to 100h comply with the service level agreement (SLA) for the network quality of the first network device 100a around the blockchain nodes 130c to 130h and the smart contract ledgers 141c to 141h. It can be an endorse node that can make judgments.

In this case, the second network apparatus 100c to 100h may be selected by the consensus server 200 based on randomness or reliability. In this case, the reliability may be calculated based on the ratio of the sum of the network apparatus 100. Here, 100c to 100h are for understanding of the description and are not limited to a specific network device and the number thereof.

The blockchain nodes 130c to 130h of the second network devices 100c to 100h may receive an agreement request from the agreement server 200 (S400). That is, when the second network apparatus 100c to 100h receives the quality measurement information agreed upon by the first network apparatus 100a (S410), the second network apparatus 100c to 100h receives the hash value of the sender and the hash value for each reflector included in the quality measurement information. The extracted hash values of the senders and the reflector hash values recorded in the smart contract ledgers 141c to 141h of the second network devices 100c to 100h may be compared with each other (S420).

At this time, the blockchain nodes (130c ~ 130h) is determined to be reliable quality measurement information if the hash values match, and the service level agreement (KPI value and smart contract ledgers (141c ~ 141h) included in the agreed quality measurement information ( It can be determined whether or not to comply with the contract conditions (S430). On the other hand, if the hash value does not match, it does not respond without judgment.

The blockchain nodes 130c to 130h may transmit whether to comply (compliance or non-compliance) to the consensus server 200 (S440).

When the agreement server 200 receives an agreement request from the network device 100 in which the membership is formed, the agreement server 200 selects an endorse node (second network device) according to a preset criterion, and selects the selected second network device 100c to 100h. The blockchain nodes 130c to 130h of the request for agreement (S400), and can be received whether or not compliance from each blockchain node (130c ~ 130h).

The agreement server 200 may calculate the compliance ratio and the non-compliance ratio by calculating the number of compliance or non-compliance of the received blockchain nodes 130c to 130h. At this time, it can be agreed with the result (compliance or non-compliance) more than the predetermined ratio of the calculated compliance ratio and non-compliance ratio (S450). On the other hand, if there is no consensus, that is, if there is no result that the compliance is over the preset ratio, it may end with an unreliable value.

If the agreement server 200 is agreed to comply or non-compliance (S450: Y) to transmit the quality measurement information agreed by the first network device (100a) to all network devices (100a ~ 100n) connected to the membership to record in the ledger Can be requested (S460).

At this time, the blockchain nodes 130a to 130n of all network devices 100a to 100n that have received the ledger recording request from the consensus server 200 have their own quality measuring ledgers 142 in the quality of the first network device 100a. Measurement information may be recorded (S470).

On the other hand, the agreement server 200, if non-compliance occurs in the agreement result (S480: N), the management server (not shown) and the first non-compliance information of the quality measurement information requested by the first network device 100a A notification may be transmitted to a user terminal (not shown) using the network apparatus 100a (S490). In this case, the notification may be provided as an immediate notification or a monthly notification according to the non-compliant information.

In addition, what was described using FIG. 1 thru | or FIG. 3 above only described the main matter of this invention, and this invention is limited to the structure of FIG. 1 thru | or FIG. 3 as many designs are possible within the technical scope. It is not clear.

100 (100a ~ 100n): network device 200: consensus server
100a: first network device 100b ~ 100n: membership node
100c ~ 100h: second network device 110: sender
120: reflector 130: blockchain node
140: Ledger 141: Smart Contract Ledger
142: Quality Measurement Director

Claims (9)

A plurality of network devices that form membership based on the blockchain and perform network quality measurement and contract compliance determination; And
If the agreement request for the quality measurement information measured at the first network device is received from the first network device, which is a measurement target among the plurality of network devices, whether the contract compliance of the agreed quality measurement information is among the plurality of network devices. A plurality of second network apparatuses are selected as the endorse node to be judged, and a request for determination of compliance with a contract is requested, and if agreement of compliance with a contract determined by the second network apparatus is agreed, the plurality of network apparatuses request the agreement. It includes a consensus server requesting to record the quality measurement information in the ledger,
The plurality of network devices,
Smart Contract Ledger with Service Level Agreement (SLA) and Quality Measure Director with Quality Measurement Information by blockchain-based membership node;
A sender configured to transmit a test packet for network quality measurement to the membership node, calculate a network KPI using the received response packet, and receive a hash value from the membership node that transmitted the response packet;
A reflector for transmitting a response packet to a test packet received from a first network device, calculating a hash value of the test packet, and transmitting the hash packet to the first network device; And
Send the quality measurement information including the hash value of the sender, the KPI for each membership node, and the reflector hash value from the sender to the consensus server to request an agreement, and when receiving the quality measurement information for the first network device from the consensus server, Each of the blockchain nodes determines whether the contract is complied with by comparing the contract conditions of the first network device recorded in the contract ledger,
The blockchain node,
When the agreement request is received from the agreement server, when the sender hash value and the reflector hash value included in the received quality measurement information match the hash value recorded in the smart contract ledger, the KPI value and the contract condition are relied on to confirm compliance. Judge,
The consensus server,
If the ratio of compliance or non-compliance received from the second network device is greater than or equal to the preset ratio, it is determined as an agreement and requested to the membership node to record the agreement result in the ledger,
Block chain based network quality trust providing system, characterized in that notified to the management server and the network user terminal if the determination result is not in compliance.
delete delete delete Blockchain-based network quality trust of the system, which forms a membership based on the blockchain and includes a consensus server that determines consensus on the quality measurement of network devices and network devices that perform network quality measurement and contract compliance determination. In the provision method,
Receiving, by the consensus server, a consensus request for quality measurement information measured by the first network apparatus from a first network apparatus that is a measurement target among the plurality of network apparatuses;
Selecting, by the consensus server, a plurality of second network devices as an endorse node which determines whether the contract-compliant compliance of the requested quality measurement information is met among the plurality of network devices;
Requesting, by the consensus server, to determine whether to comply with a contract with the selected second network device;
When the blockchain node of the second network device receives the agreement request from the agreement server, if the sender hash value and the reflector hash value included in the received quality measurement information match the hash value recorded in the smart contract ledger, the KPI value Comparing with the contract terms to determine compliance;
Receiving, by the agreement server, whether or not to comply with the agreement determined by the second network device; And
Requesting, by the consensus server, to record the agreed quality measurement information in the ledger with the plurality of network apparatuses if agreed.
Receiving the agreement request,
Sending, by a sender of the first network device, a test packet for measuring network quality to a membership node to a reflector of a membership node;
Calculating, by the sender of the first network device, a network KPI using the received response packet;
Requesting and receiving, by the sender of the first network device, a reflector hash value of the membership node that has transmitted the response packet;
Calculating, by the sender of the first network device, its own hash value; And
A block chain node of the first network device, transmitting the quality measurement information including the hash value of the sender, the KPI for each membership node, and the reflector hash value to the consensus server, and requesting an agreement;
The determining of the agreement,
If the ratio of compliance or non-compliance received from the second network device is greater than or equal to a preset ratio, it is determined as an agreement. If the determination result is non-compliance, the block server based network quality is notified. How to provide trust.
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