Nortel Networks NTRN10AN, 3500 manual 94Operation, administration, and maintenance OAM features

2-94Operation, administration, and maintenance (OAM) features

Table 2-18 (continued)

Ethernet Specific Operational Measurements

Name	Duplex	Definition
DEFERTRANS	Half	Count of frames for which the first transmission attempt is
(Delayed Transmission)		delayed because the medium is busy.
		This parameter is not applicable to the 2xGigE/FC-P2P
		circuit pack, a value of “0” is always returned.
LATECOLL	Half	Number of times that a collision is detected later than 512
(Late Collision)		bit-times into the transmission of a packet.
		This parameter is not applicable to the 2xGigE/FC-P2P
		circuit pack, a value of “0” is always returned.
EXCESSCOLL	Half	The number of times that frames failed to transmit because
(Excess collisions)		of excessive collisions (more than 15 collisions of the frame).
		This parameter is not applicable to the 2xGigE/FC-P2P
		circuit pack, a value of “0” is always returned.
INTERNALMACRXERR	Both	Count of frames for which the reception fails because of an
(Internal MAC Receive Error)		internal MAC sublayer receive error.
CARSENERR	Half	Number of times that the carrier sense condition was lost or
(Carrier Sense Error)		never asserted when attempting to transmit a frame.
		This parameter is not applicable to the 2xGigE/FC-P2P
		circuit pack, a value of “0” is always returned.
FRTOOLONGS	Both	The number of frames received at the port that exceed 1518
(Frames too long)		bytes (and have valid FCS).
FRTOOSHORTS	Both	The number of frames received at the port that are smaller
(Frames too short)		than the allowed 64-byte frame size.
INTERNALMACTXERR	Both	Count of frames for which the reception fails because of an
(Internal MAC Transmit Error)		internal MAC sublayer transmission error.
SYMBOLERR	Both	Count of invalid data symbol (100M), or GMII Data reception
(Symbol Error)		error (1000M).
INPAUSEFR	Full	The number of pause frames received at the port.
(In pause frames)
OUTPAUSEFR	Full	The number of pause frames transmitted by the port.
(Out pause frames)

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004