公开(公告)号：JPS62160842A

公开(公告)日：1987-07-16

申请号：JP27551686

申请日：1986-11-20

Applicant: IBM

Inventor： FRIEDMAN LEE GARY ,  HAILPERN BRENT TZION ,  HOEVEL LEE WINDSOR ,  THEFAINE YANNICK JEAN

IPC: H04L12/00 ,  H04L12/44

公开(公告)号：DE3688285T2

公开(公告)日：1993-10-28

申请号：DE3688285

申请日：1986-11-25

Applicant: IBM

Inventor： FRIEDMAN LEE GARY ,  HAILPERN BRENT TZION ,  HOEVEL LEE WINDSOR ,  THEFAINE YANNICK JEAN

IPC: H04L12/00 ,  H04L12/44 ,  H04L12/28

Abstract: A switching system (50) or local area network is non-blocking, transmit-secure and employs a star type topology. A back plane (50B) uses n(n-1) bus lines to interconnect n ports (30). Each port can transmit on any one of n-1 bus lines depending on the identity of the destination port. Likewise, each port can receive from any of n-1 bus lines, depending on the identity of the transmitting port. Signalling as well as data flow on the same bus lines. Each of the ports includes a dedicated microprocessor (303) along with an arbit­rator (306) to resolve contention. The ports further have transmit and receive multiplexers (305, 302) coupled between the back plane and an associated work station or information source/sink.

公开(公告)号：DE3688285D1

公开(公告)日：1993-05-19

申请号：DE3688285

申请日：1986-11-25

Applicant: IBM

Inventor： FRIEDMAN LEE GARY ,  HAILPERN BRENT TZION ,  HOEVEL LEE WINDSOR ,  THEFAINE YANNICK JEAN

IPC: H04L12/00 ,  H04L12/44 ,  H04L12/28

Abstract: A switching system (50) or local area network is non-blocking, transmit-secure and employs a star type topology. A back plane (50B) uses n(n-1) bus lines to interconnect n ports (30). Each port can transmit on any one of n-1 bus lines depending on the identity of the destination port. Likewise, each port can receive from any of n-1 bus lines, depending on the identity of the transmitting port. Signalling as well as data flow on the same bus lines. Each of the ports includes a dedicated microprocessor (303) along with an arbit­rator (306) to resolve contention. The ports further have transmit and receive multiplexers (305, 302) coupled between the back plane and an associated work station or information source/sink.