>> Despite the fact that RFCs prohibit hosts from reducing the valid
>> lifetime to less than 2 hours in response to a received RA, some
>> routers do send such RAs and some hosts do (in violation of the
>> standards) deprecate the prefixes accordingly. This is kind of a
>> no-win situation becaus
>> In this case, timely is most about user perception. If the now dysfunctional
>> address remains in use long enough for the user to become annoyed (or
>> arguably
>> even notice), then recovery is not timely. Since the definition of timely in
>> this case is actually subjective, I’m not sure tha
