| 摘要 |
A technique for updating a content addressable memory is disclosed. In one exemplary embodiment, wherein the content addressable memory has a plurality of entries, and wherein each of the plurality of entries has a prefix field, a prefix length field, and an associated index identifier, the technique is realized by determining a first set of index identifiers, wherein each index identifier in the first set of index identifiers is associated with a respective entry in a first set of the plurality of entries, and wherein each entry in the first set of entries has a respective prefix with a respective prefix length that is greater than a third prefix length of a third prefix to be added to the content addressable memory. A second set of index identifiers is analogously determined. Based upon the first set of index identifiers and the second set of index identifiers, a third index identifier is determined. The third index identifier is associated with a third of the plurality of entries where the third prefix with the third prefix length may be added to the content addressable memory. The third index identifier is located in one of or between the first set of index identifiers and the second set of index identifiers.
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