DetNet verification guarantees 4 millionths of a second of delay
Guarantees maximum latency and prevents data loss
5G verticals that require real-time precision operations


A domestic research team has developed network technology that prevents delays from increasing indefinitely even when traffic is concentrated on the communication network. We have also developed a technology that transmits data without loss even when a disaster occurs and multiple communication network failures occur.

The Electronics and Telecommunications Research Institute (ETRI) announced on the 10th that it has developed a core technology for Deterministic Networking (DetNet) with a data transmission capacity of 40 Gbps, and successfully verified a prototype system using the technology on a 430 km round trip between Seoul and Daejeon by linking it to the hyper-connected Intelligent Research and Development Network (KOREN) on the 6th.

In November of last year, ETRI developed a time-determined networking core module with a transmission capacity of 8 gigabits per second (Gbps) and applied a prototype equipped with it to KOREN.

At the time, the research team succeeded in sending data without loss even when a failure occurred on a single path, with a low-latency transmission performance of less than one-tenth of a millionth of a second per node.

The research team improved the low-latency performance to less than 4 millionths of a second and ensured lossless data transmission even when failures occur in multiple paths, not just one.

Data transfer speeds have also been increased from 1 Gbps to 10 Gbps. The data transmission capacity that can be processed on a single chip was also able to increase from 8 Gbps (built-in 8 x 1 Gbps last year) to 40 Gbps (built-in 4 x 10 Gbps this year).

This technology is expected to be widely utilized in future realistic communication fields such as smart factory remote control, telemedicine, remote drone control, remote virtual reality, and holograms.

Unlike current communication technologies where it is uncertain how long it will take if a delay occurs, it is suitable for 5G+ vertical industries that require precise work in real time as it guarantees maximum delay time and prevents data loss.

In February of this year, the research team completed technology transfer to Coweaver Co., Ltd. and WooriNet Co., Ltd., joint research institutes and domestic transmission equipment manufacturers, and plans to provide various support for commercialization.

In addition, the transmission capacity performance of this technology will be increased to 100G by 2022, and the Packet Optical Integrated Transport Network System (MPLS), currently at 10 Tbps, will be increased to 16 Tbps to increase industrial utilization.

In addition, we plan to expand the scope of guaranteeing ultra-low latency and lossless performance from the current single operator network to a future nationwide network, and conduct research to integrate it with 6G, the next-generation mobile communications technology.