发明名称 |
Schaltungseinrichtungen und Verfahren für Vielfachübertragung. |
摘要 |
A multicast switch fabric is described wherein blocking of desired signal paths is handled by storing a cell to be transmitted through the fabric at a buffer at an input port to the fabric and attempting to retransmit the cell through the fabric until the cell is successfully transmitted, or a maximum number of retries at transmission is reached. Each switch element in the fabric has a block register which stores information as to whether or not a request path including that element is blocked, the block signals being fed back to the input port to indicate whether or not cell transmission has been successful. A 2 x 2 switch element is described wherein header information from the cell is decoded in two subfields, one field determining the number of copies to be replicated in the switch and a second field determining if the cell is to be fully replicated at each subsequent stage of the fabric. <IMAGE> |
申请公布号 |
DE69022055(D1) |
申请公布日期 |
1995.10.05 |
申请号 |
DE1990622055 |
申请日期 |
1990.11.06 |
申请人 |
HEWLETT-PACKARD CO., PALO ALTO, CALIF., US |
发明人 |
WAINWRIGHT, NICHOLAS JOHN, BRISTOL, BS6 7BD, GB |
分类号 |
H04Q3/52;H04L12/18;H04L12/56;H04Q11/04;(IPC1-7):H04L12/56 |
主分类号 |
H04Q3/52 |
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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