| Description | For a 100 Mbps operation, it is a count of the number of
times an invalid code-group is received, other than the
/H/ code-group. For a 1000 Mbps operation, it is a count
of the number of times an invalid codegroup is received,
other than the /V/ code-group. /H/ denotes a special
4b5b codeword of [802.3] 100 Mbps PCS layer (clause 24),
and /V/ denotes a special 8b10b codeword of the [802.3]
1000 Mbps PCS layer (clause 36).
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module. |