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：EP0960512A1

公开(公告)日：1999-12-01

申请号：EP98905072.0

申请日：1998-02-09

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： CRAYFORD, Ian ,  KERSTEIN, Denise

IPC: G06F5 ,  G06F12 ,  G11C7 ,  G11C11 ,  H04L12 ,  H04L29 ,  H04Q3

CPC classification number: H04L12/1877 ,  G06F5/06 ,  G06F12/128 ,  G11C7/1015 ,  G11C11/412 ,  H04L12/4641 ,  H04L12/4645 ,  H04L12/467 ,  H04L41/0213 ,  H04L49/201 ,  H04L49/25 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: Management data is supplied to a management agent by a network switch by generating management packets having at least a portion of a received data packet, and management information specifying receive status and network switch response characteristics to the corresponding received data packet. The network switch includes a plurality of network ports, including network traffic ports and one management port for synthesizing the management frame. A network traffic port receiving a data packet generates receive status data specifying the reception status of the received data packet, including the presence of cyclic redundancy check (CRC) errors, frame alignment errors, and receive buffer overflow conditions. The received data packet and received status data are stored in a buffer memory, while switching logic generates port vectors specifying destination output ports and switching logic data specifying the switching logic response to the received data packet. The management port selectively compiles the received status data, the switching logic data, and at least a portion of the received data frame into a management frame, and outputs the synthesized management frame to a management agent according to a media access control (MAC) layer protocol. The generation of management frame provides detailed management information corresponding to characteristics of the received data packet and the corresponding network switch response, independent of the timing at which the data packet was received by the network switch.

公开(公告)号：EP0960512B1

公开(公告)日：2002-01-09

申请号：EP98905072.9

申请日：1998-02-09

Applicant: ADVANCED MICRO DEVICES INC.

Inventor： CRAYFORD, Ian ,  KERSTEIN, Denise

IPC: H04L12/44

CPC classification number: H04L12/1877 ,  G06F5/06 ,  G06F12/128 ,  G11C7/1015 ,  G11C11/412 ,  H04L12/4641 ,  H04L12/4645 ,  H04L12/467 ,  H04L41/0213 ,  H04L49/201 ,  H04L49/25 ,  H04L49/3009 ,  H04L49/3027 ,  H04L49/354 ,  H04L49/45 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9073 ,  H04L49/9078 ,  H04L69/26 ,  H04Q3/54591 ,  H04Q2213/1316 ,  H04Q2213/13162

Abstract: Management data is supplied to a management agent by a network switch by generating management packets having at least a portion of a received data packet, and management information specifying receive status and network switch response characteristics to the corresponding received data packet. The network switch includes a plurality of network ports, including network traffic ports and one management port for synthesizing the management frame. A network traffic port receiving a data packet generates receive status data specifying the reception status of the received data packet, including the presence of cyclic redundancy check (CRC) errors, frame alignment errors, and receive buffer overflow conditions. The received data packet and received status data are stored in a buffer memory, while switching logic generates port vectors specifying destination output ports and switching logic data specifying the switching logic response to the received data packet. The management port selectively compiles the received status data, the switching logic data, and at least a portion of the received data frame into a management frame, and outputs the synthesized management frame to a management agent according to a media access control (MAC) layer protocol. The generation of management frame provides detailed management information corresponding to characteristics of the received data packet and the corresponding network switch response, independent of the timing at which the data packet was received by the network switch.

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.