>> i am aware of that. my point was that cache purge default might >> better be set to cache refresh interval than 60 secs. > > I would agree with (and in fact, prefer) this protocol.
i remembered wrongly RFC6810 A client SHOULD delete the data from a cache when it has been unable to refresh from that cache for a configurable timer value. The default for that value is twice the polling period for that cache. randy
