发明名称 |
Network switch with separate cut-through buffer |
摘要 |
<p>A network switch including a separate cut-through buffer for facilitating cut-through mode of data transfer. The switch further includes a data bus coupled to each of the ports, a memory and a switch manager coupled to the data bus and to the memory for controlling data flow. The switch manager includes a receive buffer for handling data received by the switch, a transmit buffer for handling data to be transmitted by the switch, and a separate cut-through buffer for receiving data at any of the ports and for buffering the data to another one of the ports during cut-through mode of operation. The switch manager includes status memory, which includes programmable receive and transmit mode values for each of the ports, the modes selecting between cut-through and store-and-forward mode of operation for an indicated direction for each port. Control logic operates source and destination ports in cut-through mode if the receive mode value of the source port and the transmit mode value of the destination port have both been programmed to select cut-through mode. <IMAGE></p> |
申请公布号 |
EP0884872(A2) |
申请公布日期 |
1998.12.16 |
申请号 |
EP19970310664 |
申请日期 |
1997.12.30 |
申请人 |
COMPAQ COMPUTER CORPORATION |
发明人 |
KOTZUR, GARY B.;MAYER, DALE J.;WITKOWSKI, MICHAEL L.;WALKER, WILLIAM J.;HARESKI, PATRICIA E. |
分类号 |
G06F13/00;H04L12/56;(IPC1-7):H04L12/44;H04L12/46 |
主分类号 |
G06F13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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