公开(公告)号：DE69017141T2

公开(公告)日：1995-08-10

申请号：DE69017141

申请日：1990-09-04

Applicant: IBM

Inventor： GEYER JOEL ERWIN ,  LEE JOSEPH KINMAN ,  NORMAN VERNON ROBERT ,  WILSON KENNETH THOMAS

IPC: H04L12/433 ,  H04L12/42

Abstract: A multi-frame stripping method for use in a token ring network utilizing early token release with multiple frames transmitted by multiple stations circulating around the ring. The method recovers the ring with minimum loss of data after detection of an error condition resulting in frame corruption. The transmitting station (10) is responsible for removing its own frames from the ring. With one or more of its frames corrupted, a station (10) terminates frame removal after the transmitter has finished transmitting when a frame is received from another station without code violation errors in the frame header if a frame counter (80) has returned to its initial value. The station (10) terminates stripping when only a single frame is transmitted and then becomes corrupted if an isolated ending delimiter is detected at the station. The station (10) also terminates stripping in the multi-frame case when the ending delimiter of the last frame transmitted by the source station is received without code violation error in the I-bit, if each preceding ending delimiter is correctly detected regardless of data corruption occurring in any frame header.

公开(公告)号：DE69017141D1

公开(公告)日：1995-03-30

申请号：DE69017141

申请日：1990-09-04

Applicant: IBM

Inventor： GEYER JOEL ERWIN ,  LEE JOSEPH KINMAN ,  NORMAN VERNON ROBERT ,  WILSON KENNETH THOMAS

IPC: H04L12/433 ,  H04L12/42

Abstract: A multi-frame stripping method for use in a token ring network utilizing early token release with multiple frames transmitted by multiple stations circulating around the ring. The method recovers the ring with minimum loss of data after detection of an error condition resulting in frame corruption. The transmitting station (10) is responsible for removing its own frames from the ring. With one or more of its frames corrupted, a station (10) terminates frame removal after the transmitter has finished transmitting when a frame is received from another station without code violation errors in the frame header if a frame counter (80) has returned to its initial value. The station (10) terminates stripping when only a single frame is transmitted and then becomes corrupted if an isolated ending delimiter is detected at the station. The station (10) also terminates stripping in the multi-frame case when the ending delimiter of the last frame transmitted by the source station is received without code violation error in the I-bit, if each preceding ending delimiter is correctly detected regardless of data corruption occurring in any frame header.