公开(公告)号：JP2003188914A

公开(公告)日：2003-07-04

申请号：JP2002318107

申请日：2002-10-31

Applicant: IBM

Inventor： GOETZINGER WILLIAM JOHN ,  HANDLOGTEN GLEN ,  MIKOS JAMES F ,  NORGAARD DAVID ALAN

IPC: H04L12/54 ,  H04L12/851 ,  H04L12/863 ,  H04L12/935 ,  H04L12/937 ,  H04L13/08 ,  H04L29/04 ,  H04L29/06 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To provide a device and method by which the number of output ports to be serviced by scheduling queues can be increased without reducing the effects of the scheduling queues or increasing the resources consumed by physical array spaces used for the scheduling queues. SOLUTION: Data communication equipment includes a plurality of output ports and a scheduler which assigns priority order to outbound data frames. The scheduler includes one or a plurality of scheduling queues. Each scheduling queue expresses the serviced order of data flows. At least one scheduling queue has a plurality of output ports assigned to the queue. Namely, the scheduling queue is commonly used by two or more output ports. COPYRIGHT: (C)2003,JPO

公开(公告)号：AT524894T

公开(公告)日：2011-09-15

申请号：AT04766796

申请日：2004-09-15

Applicant: IBM

Inventor： HANDLOGTEN GLEN ,  NORGAARD DAVID

IPC: H04L1/00 ,  H04L69/14 ,  H04L12/56

Abstract: In a first aspect of the invention, a first method is provided for hierarchical scheduling. The first method includes the steps of (1) receiving data from one or more pipes, each pipe including a plurality of pipe flows (2) selecting a winning pipe from the one or more pipes from which to transmit data based upon one or more quality of service parameters corresponding to the winning pipe (3) selecting a pipe flow from the plurality of pipe flows included in the winning pipe based upon one or more quality of service parameters corresponding to the selected pipe flow and (4) transmitting data from the selected pipe flow. Numerous other aspects are provided.