Apparatus for Detecting Data Looping Phenomenon and Method Used by the Same

摘要

Provided is a switching device for detecting and removing a looping phenomenon in a data communication network and a method using the switching device. The method includes: detecting a frame checksum value; counting the number of times of a checksum value corresponding to the frame checksum value is received; and declaring a looping phenomenon when the number of times exceeds a predetermined threshold. The method makes it possible to easily detect a looping phenomenon using the checksum value.