On Fri, Aug 05, 2011 at 09:06:37PM +0800, Yaxuan wrote:
> In the worst case, 1 range can expand to 2(W-1) prefixes, where W is
> the bit-width of a header field (e.g. W=16 for L4 port fields). So
> for the TCAM based hardware, it might waste many TCAM entries for a
> single rule. </:includetail>
There's a paper giving a strategy to avoid expanding it much in the
common case:
http://www.accenture.fi/SiteCollectionDocuments/PDF/hoti02.pdf
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