The difference is whether the wildcards are active or not for matching 
purposes.  For example, let's say you had a low priority default rule that 
matches all traffic and drops it, and a few other higher priority rules that 
implement the rest of your policy.  If you want to remove that default rule, 
you tell the switch to delete the flow with all fields wildcarded.  If you 
specify strict, the wildcards are not activated for the deletion and only the 
single low priority rule rule is removed.  If you don't specify strict, then 
all the entries in the flow table are deleted.

Does that help?

--Justin


On Apr 14, 2013, at 11:09 PM, zhouxw <[email protected]> wrote:

> Is there anything else except the PRIORITY? Who can give me an good  example 
> to tell the difference. 
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