ifInUnknownProtos

For packet-oriented interfaces, the number of packets
received via the interface which were discarded because of
an unknown or unsupported protocol.  For character-oriented
or fixed-length interfaces that support protocol
multiplexing the number of transmission units received via
the interface which were discarded because of an unknown or
unsupported protocol.  For any interface that does not
support protocol multiplexing, this counter will always be
0.
              
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ifCounterDiscontinuityTime.

MIB

if-mib

OID

.1.3.6.1.2.1.2.2.1.15

Type

column

Access

readonly

Status

current

Parent

ifEntry