e-VLBI was invented to enhance the efficiency of VLBI (Very-Long-Baseline Interferometry) system by transmitting the data via high speed network. Korean VLBI Network (KVN) has a plan to construct e-VLBI system named e-KVN. High speed backbone network and efficient network model are essential to implement successful e-VLBI system. This paper introduces a network model based on PC cluster technology. The present status of high speed backbone network in Korea is overviewed. We suggest that the network link via Korea Advanced Research Network (KOREN) is one of feasible way for e-KVN. We also describe the principles of e-VLBI and protocol for network transmission such as VSI-E (VLBI Standard Interface - Electronic), RTP (Real-Time Transport Protocol) and RTCP (Real-Time Transport Control protocol).

• 송민규(한국천문연구원) | MIN-GYU SONG (Korea Astronomy & Space Science Institute)
• 변도영(한국천문연구원) | DO-YOUNG BYUN (Korea Astronomy & Space Science Institute)
• 김현구(한국천문연구원) | HYUN-GOO KIM (Korea Astronomy & Space Science Institute)
• 오세진(한국천문연구원) | SE-JIN OH (Korea Astronomy & Space Science Institute)
• 한석태(한국천문연구원) | SEOG-TAE HAN (Korea Astronomy & Space Science Institute)
• 노덕규(한국천문연구원) | DUK-GYOO ROH (Korea Astronomy & Space Science Institute)
• 이보안(한국천문연구원) | BO=AHN LEE (Korea Astronomy & Space Science Institute)