公开(公告)号：EP0960503A1

公开(公告)日：1999-12-01

申请号：EP98903841.0

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan ,  KERSTEIN, Denise ,  ERIMLI, Bahadir

IPC: H04L12 ,  H04Q3

CPC classification number: H04L49/103 ,  H04L12/18 ,  H04L12/1868 ,  H04L41/0213 ,  H04L49/20 ,  H04L49/201 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/3054 ,  H04L49/351 ,  H04L49/354 ,  H04L49/45 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: An apparatus and method of controlling the transmission of copies of a frame of data from a multiport device, such as a multiport network switch, determines which ones of the ports are designated to transmit a copy of a multicopy frame received at the switch. The switch then determines which of these designated ports are not available to transmit a copy of the frame. The copies are transmitted from those designated ports that are available to transmit a copy of the multicopy frame, while the copies are discarded for those designated ports that are not available to transmit a copy of that multicopy frame.

公开(公告)号：EP1180284A1

公开(公告)日：2002-02-20

申请号：EP99966401.4

申请日：1999-12-17

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： YU, Ching ,  ZHUANG, Xiaohua ,  ERIMLI, Bahadir ,  CHIANG, John, M. ,  MERCHANT, Shashank ,  WILLIAMS, Robert ,  YANG, Edward ,  EGBERT, Chandan ,  NANDAKUMAR, Vallath ,  LAM, Ian ,  LEUNG, Eric, Tsin-Ho

IPC: H04L12/44

CPC classification number: H04L49/351 ,  H04L49/205 ,  H04L49/3027 ,  H04L49/354

Abstract: A network switch having switch ports for full-duplex communication of data packets with respective network nodes according to Ethernet (IEEE 802.3) protocol that flexibly assigns memory access slots to access an external memory according to programmable information. A scheduler within an external memory interface assigns the memory access slots to the respective network switch ports according to a programmed sequence written into an assignment table memory from an external programmable data storage device.

公开(公告)号：EP0960511A1

公开(公告)日：1999-12-01

申请号：EP98903901.0

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： ERIMLI, Bahadir ,  RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan

IPC: G06F5 ,  H04L12 ,  H04L29 ,  H04Q3

CPC classification number: H04L49/9021 ,  G06F5/06 ,  H04L41/0213 ,  H04L49/20 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/351 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9047 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: A method and arrangement for reclaiming buffers used to store frames, following the transmission of a frame, checks to determine whether the transmission of a frame is the last copy of that frame to be transmitted. If it is the last copy, or the only copy, the buffers storing that frame are reclaimed for reuse after the contents of each buffer are transmitted. If the frame is not the last copy, or it cannot be determined whether it is the last copy, then the frame is transmitted and a count of the number of transmitted copies of that frame is decremented. Once all of the copies have been transmitted, the buffer reclaiming process is initiated.

公开(公告)号：EP1302030B1

公开(公告)日：2008-10-29

申请号：EP01924309.6

申请日：2001-03-23

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： EGBERT, Chandan

IPC: H04L12/403 ,  H04L12/44 ,  H04L12/24

CPC classification number: H04L41/00 ,  H04L49/351

Abstract: A switching system includes switches, each having a host processing unit and a switching unit, and a backbone link configured for transferring data packets between the switching units. One of the host processing units is configured as a master unit for generating a data frame having a destination address for a selected one of the switching units of a corresponding selected one of the other host processing units. The master unit outputs the data frame to the corresponding switching unit for transfer to the selected one switching unit via the backbone link. The selected one switching unit, in response to receiving the data frame having the corresponding destination address, forwards the data frame to the corresponding host processing unit for execution of a processing operation specified in the data frame. Hence, the switching system provides inter-processor communications using a preexisting backbone link, eliminating the necessity of a processor bus.

Abstract translation: 交换系统包括交换机，每个交换机具有主机处理单元和交换单元，以及被配置为在交换单元之间传送数据分组的骨干链路。 主机处理单元中的一个被配置为主单元，用于生成具有对应的其他主机处理单元中的所选择的一个的切换单元中的所选择的一个的目的地地址的数据帧。 主单元将数据帧输出到相应的切换单元，以通过主干链路传送到所选择的一个交换单元。 所选择的一个切换单元响应于接收到具有相应目的地址的数据帧，将数据帧转发到相应的主机处理单元，以执行数据帧中指定的处理操作。 因此，交换系统使用预先存在的骨干链路提供处理器间通信，消除了处理器总线的必要性。

公开(公告)号：EP0960502B1

公开(公告)日：2003-10-29

申请号：EP98902741.2

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan ,  LEUNG, Eric, Tsin-Ho ,  ERIMLI, Bahadir ,  CRAYFORD, Ian

IPC: H04L12/18 ,  H04L12/44

CPC classification number: H04L49/901 ,  G06F5/06 ,  H04L41/0213 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/9047 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: A method and arrangement for transmitting multiple copies of a frame from a network switch in a packet switched network stores a single copy of the frame received at the switch into external memory. The frame is stored at a location in memory pointed to by a frame pointer. In queuing multiple transmissions of the stored frame in the switch, the frame pointer, and not the frame itself, is replicated and queued for transmission in the network switch.

公开(公告)号：EP0960536B1

公开(公告)日：2003-08-20

申请号：EP98908483.5

申请日：1998-02-06

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： ERIMLI, Bahadir ,  CRAYFORD, Ian ,  EGBERT, Chandan

IPC: H04Q3/64

CPC classification number: H04L69/26 ,  G06F5/06 ,  G06F12/128 ,  G11C7/1015 ,  G11C11/412 ,  H04L12/1877 ,  H04L12/1881 ,  H04L12/4641 ,  H04L12/4645 ,  H04L12/467 ,  H04L41/0213 ,  H04L47/50 ,  H04L47/6215 ,  H04L49/103 ,  H04L49/205 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/351 ,  H04L49/354 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9073 ,  H04L49/9078 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: A method and arrangement for queuing data in a prioritized manner have a queue with a single queue write side in which data entries are input to the queue. The queue also has a plurality of queue read sides, with each read side having a different priority level. An entry exiting from the queue write side is examined to determine the priority level of the entry, and then placed into the queue read side with the matching priority level as the entry. The queue read sides form the output of the queue, and are polled and emptied so that the higher priority queues are emptied completely before emptying lower priority queues.

Abstract translation: 以优先排序方式排队数据的方法和装置具有一个具有单个队列写入端的队列，其中将数据条目输入队列。 队列还具有多个队列读取侧，每个读取侧具有不同的优先级。 检查从队列写入端退出的条目以确定条目的优先级，然后将其与匹配的优先级作为条目放入队列读取端。 队列读取端形成队列的输出，并被轮询和清空，以便在排空较低优先级队列之前，将更高优先级队列完全清空。

公开(公告)号：EP1302030A2

公开(公告)日：2003-04-16

申请号：EP01924309.6

申请日：2001-03-23

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： EGBERT, Chandan

IPC: H04L12/403 ,  H04L12/44 ,  H04L12/24

CPC classification number: H04L41/00 ,  H04L49/351

Abstract: A switching system includes switches, each having a host processing unit and a switching unit, and a backbone link configured for transferring data packets between the switching units. One of the host processing units is configured as a master unit for generating a data frame having a destination address for a selected one of the switching units of a corresponding selected one of the other host processing units. The master unit outputs the data frame to the corresponding switching unit for transfer to the selected one switching unit via the backbone link. The selected one switching unit, in response to receiving the data frame having the corresponding destination address, forwards the data frame to the corresponding host processing unit for execution of a processing operation specified in the data frame. Hence, the switching system provides inter-processor communications using a preexisting backbone link, eliminating the necessity of a processor bus.

公开(公告)号：EP0960503B1

公开(公告)日：2002-01-02

申请号：EP98903841.9

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan ,  KERSTEIN, Denise ,  ERIMLI, Bahadir

IPC: H04L12/18 ,  H04L12/44

CPC classification number: H04L49/103 ,  H04L12/18 ,  H04L12/1868 ,  H04L41/0213 ,  H04L49/20 ,  H04L49/201 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/3054 ,  H04L49/351 ,  H04L49/354 ,  H04L49/45 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: An apparatus and method of controlling the transmission of copies of a frame of data from a multiport device, such as a multiport network switch, determines which ones of the ports are designated to transmit a copy of a multicopy frame received at the switch. The switch then determines which of these designated ports are not available to transmit a copy of the frame. The copies are transmitted from those designated ports that are available to transmit a copy of the multicopy frame, while the copies are discarded for those designated ports that are not available to transmit a copy of that multicopy frame.

公开(公告)号：EP0960502A1

公开(公告)日：1999-12-01

申请号：EP98902741.0

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan ,  LEUNG, Eric, Tsin-Ho ,  ERIMLI, Bahadir ,  CRAYFORD, Ian

IPC: G06F5 ,  H04L12 ,  H04L29 ,  H04Q3

CPC classification number: H04L49/901 ,  G06F5/06 ,  H04L41/0213 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/9047 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: A method and arrangement for transmitting multiple copies of a frame from a network switch in a packet switched network stores a single copy of the frame received at the switch into external memory. The frame is stored at a location in memory pointed to by a frame pointer. In queuing multiple transmissions of the stored frame in the switch, the frame pointer, and not the frame itself, is replicated and queued for transmission in the network switch.

公开(公告)号：EP0960511B1

公开(公告)日：2004-04-21

申请号：EP98903901.1

申请日：1998-01-30

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： ERIMLI, Bahadir ,  RUNALDUE, Thomas, Jefferson ,  EGBERT, Chandan

IPC: H04L12/44 ,  H04L12/18 ,  H04L29/06

CPC classification number: H04L49/9021 ,  G06F5/06 ,  H04L41/0213 ,  H04L49/20 ,  H04L49/255 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/351 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9047 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: A method and arrangement for reclaiming buffers used to store frames, following the transmission of a frame, checks to determine whether the transmission of a frame is the last copy of that frame to be transmitted. If it is the last copy, or the only copy, the buffers storing that frame are reclaimed for reuse after the contents of each buffer are transmitted. If the frame is not the last copy, or it cannot be determined whether it is the last copy, then the frame is transmitted and a count of the number of transmitted copies of that frame is decremented. Once all of the copies have been transmitted, the buffer reclaiming process is initiated.