发明名称 |
Method and apparatus for managing the flow of data within a switching device |
摘要 |
A method and apparatus for managing the flow of data within a switching device is provided. The switching device includes network interface cards connected to a common backplane. Each interface card is configured to support the maximum transfer rate of the backplane by maintaining a "pending" queue to track data that has been received but for which the appropriate routing destination has not yet been determined. The switching device includes a switch controller that maintains a central card/port-to-address table. When an interface card receives data with a destination address that is not known to the interface card, the interface card performs a direct memory access over a bus that is separate from the backplane to read routing data directly from the central table in the switch controller. Each interface card builds and maintains a routing information table in its own local memory that only includes routing information for the destination addresses that the interface card is most likely to receive.
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申请公布号 |
US6788671(B2) |
申请公布日期 |
2004.09.07 |
申请号 |
US20020093290 |
申请日期 |
2002.03.05 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
RYALS RANDY;PRINCE JEFFREY |
分类号 |
H04L12/56;H04L29/06;(IPC1-7):H04L12/00 |
主分类号 |
H04L12/56 |
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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