This read-only counter tracks the total number of input PDUs successfully delivered up to the CLNS transport-layer user on this entity. An admin uses this as the measure of genuinely useful inbound CLNP traffic, complementing clnpInReceives by showing how much of that raw input actually made it all the way to an application. For example, a large and growing gap between clnpInReceives and this delivered count would tell the admin a significant fraction of received traffic is being dropped somewhere in processing rather than reaching its intended consumer.