公开(公告)号：DE69123104D1

公开(公告)日：1996-12-19

申请号：DE69123104

申请日：1991-06-17

Applicant: IBM

Inventor： BROWN PAUL JOSEPH ,  ELLIOTT JOSEPH CHARLES ,  HOPPE KARL HELMUTH ,  LYNCH KENNETH ROBERT ,  SACHS MARTIN WILLIAM

IPC: G06F13/14 ,  G06F13/40

Abstract: A computer I/O system which includes a dynamic switch (10) having a plurality of ports (P) and a plurality of link-level facilities, with each link-level facility being attached to an individual one of the ports (P). Whenever the state of a port (P) or its attached link-level facility is changed in such a way that the attached link-level facility's ability to communicate with another link-level facility might be affected, this fact is recognized by a dynamic switch control unit (20) which causes a state change notification (SCN) frame to be transmitted to all other link-level facilities which might be affected. The link-level facilities receiving such a state change notification then determine if any of the associations or potential associations with the link-level facility which caused the state change notification are affected.

公开(公告)号：DE69113727T2

公开(公告)日：1996-05-30

申请号：DE69113727

申请日：1991-06-13

Applicant: IBM

Inventor： FREDERICKS KENNETH JAMES ,  LYNCH KENNETH ROBERT

IPC: G06F13/00 ,  G06F13/12 ,  G06F13/40 ,  H04L7/00 ,  H04L7/04

公开(公告)号：DE69113727D1

公开(公告)日：1995-11-16

申请号：DE69113727

申请日：1991-06-13

Applicant: IBM

Inventor： FREDERICKS KENNETH JAMES ,  LYNCH KENNETH ROBERT

IPC: G06F13/00 ,  G06F13/12 ,  G06F13/40 ,  H04L7/00 ,  H04L7/04