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fcs_error_rx contains the number of frames received by circuit cct
that contained an erroneous checksum.
frames_rx_per_sec contains the number of frames that this circuit
has received in the last second.
frames_tx_per_sec contains the number of frames that this circuit
has transmitted in the last second.
frames_rx_ok contains the number of frames received without
error by circuit cct.
frames_tx_ok contains the number of frames transmitted without
error by circuit cct.
frams_incomp_rx contains the number of incomplete frames
received by circuit cct. An incomplete frame is identified by failure to
set the end-of-packet bit in the receive message descriptor.
lack_resc_error_rx contains the number of times circuit cct lost
frames because of insufficient buffer space.
late_colln_tx contains the number of late collisions on circuit cct.
A late collision is one detected after the transmission of at least 64 bytes.
In such an instance, the local area controller (SONIC) does not
retransmit the frame. Rather, it terminates the transmission, increments
this counter, and transmits the next frame in its transmit queue.
lcar_tx contains the number of instances of carrier loss on cct.
Loss of carrier indicates that the input (receive enable signal) went
.FALSE. during a controller-initiated transmission.
mac_addr contains the 12-digit hexadecimal representation of the
48-bit station address used by circuit cct.
merr contains the number of memory errors. A memory error indi-
cates that the local area controller (SONIC), after becoming bus master,
failed to receive a ready signal within 25.6 µs of asserting a memory
address on the data/address bus. A memory error disables the SONIC.
octets_rx_per_sec contains the number of octets that this circuit has
received in the last second.
Management Information Base Variables
cct: Circuits Information Base
18-32