Patent Number: 8,817,820

Title: System for controlling path maximum transmission unit by detecting repetitional IP packet fragmentation and method thereof

Abstract: A fragmentation repetition detection apparatus (410) for detecting an IP fragmentation repetition which may occur in a multicast or unicast environment is provided. The fragmentation repetition detection apparatus (410) includes a packet capturing unit (411) which captures a received packet, a fragmentation repetition detector which detects whether or not the captured packet is a packet which is repetitively fragmented, and a path maximum transmission unit (PMTU) transmitter (414) which transmits PMTU information acquired by the fragmentation repetition detector (412) to a server which transmits the packet when the captured packet is a packet which is repetitively fragmented. Since a packet is transmitted by readjusting a PMTU, a fragmentation of an IP packet can be prevented.

Inventors: Oh; Seung-hun (Gwangju-si, KR), Park; Il-kyun (Seoul, KR), Lee; Byung-tak (Suwon-si, KR), Kim; Kyung-hun (Gwangju-si, KR), Koh; Jai-sang (Gwangju-si, KR)

Assignee: Electronics and Telecommunications Research Institute

International Classification: H04J 3/00 (20060101)

Expiration Date: 8/26/12018