公开(公告)号：JPH11112557A

公开(公告)日：1999-04-23

申请号：JP25670597

申请日：1997-09-22

Applicant: IBM

Inventor： HATTA TOMOAKI ,  KASHIMURA HIDEAKI

IPC: H04L12/28 ,  H04L12/70 ,  H04L12/741 ,  H04L12/811 ,  H04L12/865 ,  H04L12/877 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To avoid data transmission from being disabled due to aborted LMI data even on the occurrence of deficient band and congestion of channels in the communication system adopting the frame relay system. SOLUTION: Upon the receipt of an FR frame from an FR terminal 16, a multiplexer 14-2 identifies an LMI frame including LMI data from a user frame including user data based on a value of an address part of a DLCI and queues separately them. The multiplexer 14-2 sends all of queued LMI frames to a data transmission line 18 with priority and then sends queued user frames which are sent by a remaining transmission capacity to the transmission line 18 to conduct traffic shaping processing.