Electronics and Telecommunications Research Institute

Sung Hyuk Byun

Sun Me Kim

Nam Seok Ko

Sang Ho Lee

Tae Whan Yoo

Seung Hyun Yoon

Ji Young Kwak

Jea Hoon Yu

Dong Il Seo

Dae Ub Kim

Sang Ki Kim

Quang Tung Thai

Dong Ii Seo

The present invention relates to a method for announce-pull data broadcasting in a blockchain based on information-centric networking (ICN). The present invention includes, transmitting announcement messages to notify having any data in the format of an ICN Interest packet, by a blockchain node, to the blockchain node's peers; receiving, by the blockchain node, data request messages, which request the data, from the blockchain node's peers, wherein data request messages for the same ICN Data packet receiving from multiple blockchain nodes can be aggregated at a middle ICN node; and transmitting, by the blockchain node, the ICN Data packet corresponding to the data request message to the blockchain node's peers, wherein the ICN Data packets can cached at the middle ICN node.

Method and apparatus for blockchain based on information-centric networking

Disclosed herein a method for configuration of semi-managed DHT based on NDN and system therefor. The method includes: managing and sharing manager nodes based on global information; generating a sub-range segment by partitioning a keyspace area, according to each group of the data peer nodes; managing the sub-range segment by distributing the sub-range segment corresponding to each group to data peer nodes of the each group; checking and analyzing liveness of the data peer node in the each group; estimating availability of the data peer nodes by predicting lifetime of data peer nodes through the checking and analyzing of liveliness; performing risk factor prediction that estimates data availability and sub-range management overhead; and performing a sub-range management decision at each of the manager nodes based on a result of the risk factor prediction, and performing a global stabilization decision required for global system stabilization.

Method for configuration of semi-managed DHT based on NDN and system therefor

The present invention relates to a method and a device for fast forwarding a flow traffic in an information-centric networking (ICN). According to the present invention, a flow switching method for a network node of an information-centric networking (ICN) includes: identifying a data name contained in a received interest packet and identifying a flow name from the data name, thereby determining whether a flow entry corresponding to the identified flow name is present within a flow table (FT); identifying forwarding information base (FIB) entry information matched to the flow name from the corresponding flow entry and identifying an FIB entry corresponding to the FIB entry information; and transmitting the interest packet on the basis of interface information included in the identified FIB entry.

Apparatus and method of managing content name in information-centric networking

A network infrastructure system implements data sharing and processing by using a network infrastructure to which an application terminal or application server constituting an application domain is connected in a shared manner, includes a plurality of network infrastructure nodes storing, processing, sharing data, wherein each of the plurality of network infrastructure nodes includes a data processing module including a data transfer function, a data distribution function, a data processing function, and a data sharing function which are provided to at least one of the application terminal and the application server.

Network infrastructure system and method for data processing and data sharing using the same

Provided herein a network virtualization apparatus and method, the apparatus including a tunnel manager configured to collect tunnel end points information within a network, and to connect each tunnel end point with a tunnel based on the tunnel end point information collected; a tunnel packet end point configured to receive a tunnel packet and process the packet such that an L2 switching may be performed, and to transmit the packet to a domain VSI (virtual switching instance); the domain VSI configured to perform the L2 switching on the processed packet, and to transmit the packet to a tunnel packet generator; and the tunnel packet generator configured to add a tunnel header to the packet for which the L2 switching has been performed to generate a new tunnel packet, and to transmit the new tunnel packet.

Method and apparatus for network virtualization

Provided herein is a proxy tunnel end point apparatus including a tunnel management unit configured to generate a tunnel; a VNID management unit configured to generate a VSI for a VNID; a tunnel packet end point unit configured to terminate the tunnel, extract VNID information from the packet, and transmit the terminated L2 packet to the VSI corresponding to the VNID; a VSI unit having a virtual port corresponding to each terminated tunnel in the tunnel packet end point unit, and configured to perform L2 switching on the terminated L2 packet transmitted from the tunnel packet end point unit and to transmit the L2 packet to a destination virtual port; and a tunnel packet generation unit configured to transmit the packet to a second tunnel end point unit of a destination of transmission, based on a destination virtual port information.

Proxy tunnel end point unit, communication system for scalable network virtualization having the same and communication method for scalable network virtualization

A protection switching management apparatus and method for effective use of resources in a multilayer or a multi-domain. The protection switching management method may include receiving an adaptation request from a network component included in an upper layer, determining whether to apply protection switching to a layer based on the received adaptation request, and setting a protection path in the layer based on a result of the determining.

Protection switching management apparatus and method for effective use of resources in multilayer or multi-domain

A power-efficient link group-based communication system is provided. In link group-based communication, according to the amount of transmitted traffic, an appropriate number of links in a link group are set to active mode to be used for traffic transmission, and the rest of the links in the link group are set to power save mode, thereby not transmitting traffic. Thus, efficient power reduction in the link group-based communication can be realized.

Growing community of inventors

Daejeon, South Korea

Sung Hyuk Byun