发明名称 |
Method and apparatus for performing radix lookups using valid bit tables with pointers |
摘要 |
A method, apparatus, and article of manufacture for performing a radix search tree lookup with a key using a valid bit table with pointers. The key is used as a valid bit index into the valid bit table. A first pointer associated with the valid bit index is then used as a pointer into a first block of entries in a result table. A sum of valid bits in the valid bit table below the valid bit index is used as a result index into the first block of entries in the result table. The result index into the first block of entries may be used to reference a result of the radix search tree lookup. Extra space is added in the result table to enable insertion of entries after the first block of entries. A second pointer is used to add redundant entries from the first block of entries into a second block of entries in the result table.
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申请公布号 |
US6223174(B1) |
申请公布日期 |
2001.04.24 |
申请号 |
US19980108711 |
申请日期 |
1998.07.01 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
LADWIG GEOFF;ANGLE RICHARD |
分类号 |
G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/30 |
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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