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：DE69017096T2

公开(公告)日：1995-08-10

申请号：DE69017096

申请日：1990-05-29

Applicant: IBM

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

IPC: H04L12/433 ,  H04L12/42

Abstract: A frame stripping algorithm for use in a ring communication network utilizing early token release wherein multiple frames can exist on the ring at one time. The algorithm introduces two new strip terminating conditions which supplement the three conditions applicable to a normal token release scheme. The first of these conditions occurs when the source address in a received message is not the same as the receiving station's address and no code violation errors have been detected. The second condition occurs when the receiving station detects an isolated ending delimiter without a preceding starting delimiter.

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.

公开(公告)号：DE69017096D1

公开(公告)日：1995-03-30

申请号：DE69017096

申请日：1990-05-29

Applicant: IBM

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

IPC: H04L12/433 ,  H04L12/42

Abstract: A frame stripping algorithm for use in a ring communication network utilizing early token release wherein multiple frames can exist on the ring at one time. The algorithm introduces two new strip terminating conditions which supplement the three conditions applicable to a normal token release scheme. The first of these conditions occurs when the source address in a received message is not the same as the receiving station's address and no code violation errors have been detected. The second condition occurs when the receiving station detects an isolated ending delimiter without a preceding starting delimiter.