The number of routing entries which were chosen to be discarded even though they are valid. One possible reason for discarding such an entry could be to free-up buffer space for other routing entries.

This object was defined in pre-IPv6 versions of the IP MIB. It was implicitly IPv4 only, but the original specifications did not indicate this protocol restriction. In order to clarify the specifications, this object has been deprecated and a similar, but more thoroughly clarified, object has been added to the IP-FORWARD-MIB.