inputerrors is an Integer32 counter reporting the number of inbound packet errors recorded on a specific network interface entry. An admin diagnosing a slow or unreliable network connection watches this counter for a rising trend, which points to a physical-layer problem like a bad cable or duplex mismatch on the receiving side. For example, if inputerrors climbs rapidly on one interface while others stay at zero, the admin checks that specific port's cabling and switch-side duplex settings.