A computing system has a resource for providing resource services, where
each resource service is accessed by way of a system address (SA). A
device requests the resource services of the resource by way of requests,
where each request includes a remote address (RA) corresponding to an SA
of the resource. A centralized address translator (CAT) has a database of
RA/SA translations for the resource and the device, where each RA/SA
translation in the database corresponds to a respective RA and SA. The
device has a remote address translator (RAT) with a cache for storing
priority RA/SA translations as obtained from the CAT. Each priority RA/SA
translation in the cache of the RAT includes a validity flag set to
indicate whether the priority translation is valid based on whether the
SA has changed at the CAT.