This object reports the IGMP proxy's cache-entry state for a specific multicast group on a specific interface, indicating whether a leave-delay timer is running, the delaying-member state, or not. Admins use it to see whether the proxy is in the process of confirming a group departure; when the delay timer expires, the proxy sends an unsolicited report and updates this state, which helps diagnose why a group is or isn't still being forwarded. Seeing this move into the delaying-member state for a group right after the last local host stops watching a stream shows the proxy is running its departure-confirmation timer for that group.