公开(公告)号：DE60214341D1

公开(公告)日：2006-10-12

申请号：DE60214341

申请日：2002-02-25

Applicant: IBM

Inventor： BENNER F ,  ENGBERSEN ANTONIUS ,  GOLDRIAN A ,  LUIJTEN P

IPC: H04Q11/04 ,  H04L49/111

Abstract: A switching device is able to route the arriving data packets according to data packet destination information to dedicated output ports. The switching arrangement has, for each set of input ports in the switching device, a set of output buffers with an output buffer for storing the payload of each data packet at an address in the output buffer which pertains to the same set of output buffers and belongs to the dedicated output ports. At least one of the output buffers has a set of output queues with an output queue for each output port for storing the address of each payload stored in the corresponding output buffer. An arbiter controls a readout order of the stored addresses. For the output buffers which pertain to the same set of output ports a multiplexer multiplexes according to the readout order the payloads from the output buffers to the output ports.

公开(公告)号：DE60214341T2

公开(公告)日：2007-09-13

申请号：DE60214341

申请日：2002-02-25

Applicant: IBM

Inventor： BENNER F ,  ENGBERSEN ANTONIUS ,  GOLDRIAN A ,  LUIJTEN P

IPC: H04Q11/04 ,  H04L49/111

Abstract: A switching device is able to route the arriving data packets according to data packet destination information to dedicated output ports. The switching arrangement has, for each set of input ports in the switching device, a set of output buffers with an output buffer for storing the payload of each data packet at an address in the output buffer which pertains to the same set of output buffers and belongs to the dedicated output ports. At least one of the output buffers has a set of output queues with an output queue for each output port for storing the address of each payload stored in the corresponding output buffer. An arbiter controls a readout order of the stored addresses. For the output buffers which pertain to the same set of output ports a multiplexer multiplexes according to the readout order the payloads from the output buffers to the output ports.

公开(公告)号：DE60202136T2

公开(公告)日：2005-12-01

申请号：DE60202136

申请日：2002-03-15

Applicant: IBM

Inventor： LUIJTEN P ,  HERKERSDORF ANDREAS

IPC: H04L45/74 ,  H04L12/56

Abstract: A method for selectively inserting cache entries into a cache memory is proposed in which incoming data packets are directed to output links according to address information. The method comprises the following steps: a) an evaluation step for evaluating for each incoming data packet classification information which is relevant to the type of traffic flow or to the traffic priority to which the data packet is associated; b) a selection step for selecting based on the result of the evaluation step whether for the data packet the cache entry is to be inserted into the cache memory; c) an entry step for inserting as the cache entry into the cache memory, in the case the result of the selection step is that the cache entry is to be inserted, for the data packet the address information and associated output link information.

公开(公告)号：DE60202136D1

公开(公告)日：2005-01-05

申请号：DE60202136

申请日：2002-03-15

Applicant: IBM

Inventor： LUIJTEN P ,  HERKERSDORF ANDREAS

IPC: H04L45/74 ,  H04L12/56

Abstract: A method for selectively inserting cache entries into a cache memory is proposed in which incoming data packets are directed to output links according to address information. The method comprises the following steps: a) an evaluation step for evaluating for each incoming data packet classification information which is relevant to the type of traffic flow or to the traffic priority to which the data packet is associated; b) a selection step for selecting based on the result of the evaluation step whether for the data packet the cache entry is to be inserted into the cache memory; c) an entry step for inserting as the cache entry into the cache memory, in the case the result of the selection step is that the cache entry is to be inserted, for the data packet the address information and associated output link information.