On Sun, Feb 20, 2011 at 11:36 PM, Derek Cormier
<derek.corm...@lab.ntt.co.jp> wrote:
> I see what you mean and I agree that a switch shouldn't store unnecessary
> information. But is it really a burden in this case? The wildcards are
> stored in a single 32-bit integer, so no extra space is needed.

The data structure that OVS uses for classification requires that
wildcarded fields
be zeroed for efficiency reasons.  In other words, storing the wildcards isn't a
big deal, but storing nonzero values of wildcarded fields would require extra
memory.  So I'd rather not do it, although certainly it's not a huge
deal if in the
OVS has to.

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