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公开(公告)号：JP2001274837A
公开(公告)日：2001-10-05
申请号：JP2001015820
申请日：2001-01-24
Applicant: IBM
Inventor： ENGBERSEN ANTONIUS , VAN LUNTEREN JAN
IPC: G06F17/30 , H04L12/743 , H04L12/801 , H04L12/851 , H04L12/56
Abstract: PROBLEM TO BE SOLVED: To classify a packet to be processed about an applicable rule or other data items in response to a plurality of decision reference values included in each packet. SOLUTION: A range token with a nonuniform length is allocated to a reference range of a decision reference value, and as a result, each combination of input values from a packet can be represented by a specific variable length combination of range tokens. A retrieval tree including a stored rule ID is designed so that each combination of specific range tokens used as an input of a longest match prefix lookup operation can supply a necessary ID. A combination of different range tokens having the same prefix can use the same path to one stored rule ID, as a result, the storage area requirement and the time requirement of a classification procedure are reduced in this method, and simple update at a time when rules are changed can be performed.
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2.发明申请
公开(公告)号：WO2004049179A3
公开(公告)日：2004-07-29
申请号：PCT/IB0305016
申请日：2003-11-05
Applicant: IBM , ENGBERSEN ANTONIUS
Inventor： ENGBERSEN ANTONIUS
CPC classification number: G06F13/385 , G06F13/28
Abstract: The present invention discloses a method and apparatus for transmitting incoming packet data via a data bus to a memory unit and transmitting outgoing packet data from the memory unit to a communication link via the data bus. The method for transmitting packet data via a data bus to a memory unit comprises the steps of receiving a stream of packet data; storing the received packet data in a buffer unit; and in response to the stored packet data, transmitting a burst of packet data to the memory unit, wherein the size of the burst of packet data depends on the properties of the data bus. The method for transmitting outgoing packet data from a memory unit to a communication link via a data bus comprises the steps of transmitting a burst of packet data from the memory unit to a buffer unit, wherein the size of the burst of packet data depends on the properties of the data bus; storing the packet data in the buffer unit; segmenting the packet data in the buffer; and in response to the transmission step, sending the segmented packet data to the communication link.
Abstract translation: 本发明公开了一种用于经由数据总线将输入分组数据发送到存储单元并且经由数据总线将输出分组数据从存储单元发送到通信链路的方法和设备。 经由数据总线将分组数据传输到存储器单元的方法包括以下步骤：接收分组数据流; 将接收的分组数据存储在缓冲器单元中; 并且响应于所存储的分组数据，将分组数据突发发送到存储器单元，其中分组数据突发的大小取决于数据总线的属性。 用于经由数据总线将输出分组数据从存储器单元发送到通信链路的方法包括以下步骤：将分组数据的突发从存储器单元发送到缓冲器单元，其中分组数据的突发的大小取决于 数据总线的属性; 将分组数据存储在缓冲器单元中; 将分组数据分段到缓冲器中; 并且响应于传输步骤，将分段的分组数据发送到通信链路。
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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.
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公开(公告)号：AT338439T
公开(公告)日：2006-09-15
申请号：AT02700516
申请日：2002-02-25
Applicant: IBM
Inventor： BENNER ALAN F , ENGBERSEN ANTONIUS , GOLDRIAN GOTTFRIED A , LUIJTEN RONALD P
IPC: H04Q11/04
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.
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公开(公告)号：DE3788649D1
公开(公告)日：1994-02-10
申请号：DE3788649
申请日：1987-10-20
Applicant: IBM
Inventor： AHMADI HAMID , BEHA JOHANNES GEORG , DENZEL WOLFGANG , ENGBERSEN ANTONIUS , LUIJTEN RONALD , MURPHY CHARLES , PORT ERICH
Abstract: In a switching system interconnecting transmission links (21-i, 23-i) on which circuit switched (CS) and packet switched (PS) information is transferred, a switch fabric (11) is provided which interconnects a plurality of input ports (15-i) to a plurality of output ports (19-i). The information arriving on incoming links is converted in switch adapters (13-i) to uniform minipackets, each having a routing address designating the required output port. The switch fabric consists of parallel equal switching slices, e.g. binary routing trees (71), which transfer in a non-blocking manner each minipacket from its input port to one output port in response to the routing address. Collecting means (73, 75) are provided at each output port for accepting the minipackets arriving from the different input ports.
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Patent Agency Ranking
公开(公告)号：AU2003278452A1
公开(公告)日：2004-06-18
申请号：AU2003278452
申请日：2003-11-05
Applicant: IBM
Inventor： ENGBERSEN ANTONIUS
Abstract: The present invention discloses a method and apparatus for transmitting incoming packet data via a data bus to a memory unit and transmitting outgoing packet data from the memory unit to a communication link via the data bus. The method for transmitting packet data via a data bus to a memory unit comprises the steps of receiving a stream of packet data; storing the received packet data in a buffer unit; and in response to the stored packet data, transmitting a burst of packet data to the memory unit, wherein the size of the burst of packet data depends on the properties of the data bus. The method for transmitting outgoing packet data from a memory unit to a communication link via a data bus comprises the steps of transmitting a burst of packet data from the memory unit to a buffer unit, wherein the size of the burst of packet data depends on the properties of the data bus; storing the packet data in the buffer unit; segmenting the packet data in the buffer; and in response to the transmission step, sending the segmented packet data to the communication link.
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公开(公告)号：HK7795A
公开(公告)日：1995-01-27
申请号：HK7795
申请日：1995-01-19
Applicant: IBM
Inventor： AHMADI HAMID , BEHA JOHANNES GEORG , DENZEL WOLFGANG , ENGBERSEN ANTONIUS , LUIJTEN RONALD , MURPHY CHARLES , PORT ERICH
Abstract: In a switching system interconnecting transmission links (21-i, 23-i) on which circuit switched (CS) and packet switched (PS) information is transferred, a switch fabric (11) is provided which interconnects a plurality of input ports (15-i) to a plurality of output ports (19-i). The information arriving on incoming links is converted in switch adapters (13-i) to uniform minipackets, each having a routing address designating the required output port. The switch fabric consists of parallel equal switching slices, e.g. binary routing trees (71), which transfer in a non-blocking manner each minipacket from its input port to one output port in response to the routing address. Collecting means (73, 75) are provided at each output port for accepting the minipackets arriving from the different input ports.
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公开(公告)号：DE3788649T2
公开(公告)日：1994-06-23
申请号：DE3788649
申请日：1987-10-20
Applicant: IBM
Inventor： AHMADI HAMID , BEHA JOHANNES GEORG , DENZEL WOLFGANG , ENGBERSEN ANTONIUS , LUIJTEN RONALD , MURPHY CHARLES , PORT ERICH
Abstract: In a switching system interconnecting transmission links (21-i, 23-i) on which circuit switched (CS) and packet switched (PS) information is transferred, a switch fabric (11) is provided which interconnects a plurality of input ports (15-i) to a plurality of output ports (19-i). The information arriving on incoming links is converted in switch adapters (13-i) to uniform minipackets, each having a routing address designating the required output port. The switch fabric consists of parallel equal switching slices, e.g. binary routing trees (71), which transfer in a non-blocking manner each minipacket from its input port to one output port in response to the routing address. Collecting means (73, 75) are provided at each output port for accepting the minipackets arriving from the different input ports.
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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.
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公开(公告)号：SG173494G
公开(公告)日：1995-04-28
申请号：SG173494
申请日：1994-12-06
Applicant: IBM
Inventor： AHMADI HAMID , BEHA JOHANNES GEORG , DENZEL WOLFGANG , ENGBERSEN ANTONIUS , LUIJTEN RONALD , MURPHY CHARLES , PORT ERICH
Abstract: In a switching system interconnecting transmission links (21-i, 23-i) on which circuit switched (CS) and packet switched (PS) information is transferred, a switch fabric (11) is provided which interconnects a plurality of input ports (15-i) to a plurality of output ports (19-i). The information arriving on incoming links is converted in switch adapters (13-i) to uniform minipackets, each having a routing address designating the required output port. The switch fabric consists of parallel equal switching slices, e.g. binary routing trees (71), which transfer in a non-blocking manner each minipacket from its input port to one output port in response to the routing address. Collecting means (73, 75) are provided at each output port for accepting the minipackets arriving from the different input ports.
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