DescriptionField
Displays the number of errors received by the
interface. Input errors occur when incoming cells are
dropped or corrupted. The possible input errors are
as follows:
• CRC—Number of times that the checksum
calculated from the data received did not match
the checksum from the transmitted data.
• overrun—Number of times that the receiver
hardware was incapable of handing received
data to a hardware buffer because the input rate
exceeded the receiver's capability to handle the
data.
• alignment—Number of nonoctets received.
• length—Number of times the interface
prevented the ASIC from overrunning a
maximum transmission unit (MTU) size.
• collision—Number of messages retransmitted
because of an Ethernet collision.
Input errors
Total number of messages transmitted by the system.packets output
Total number of bytes, including data and MAC
encapsulation, in the error-free packets transmitted
by the system.
bytes
Total number of packets dropped from the output
queue because the queue was full.
total output drops
Indicates the total number of broadcast and multicast
packets transmitted by the interface.
Output
Displays the number of errors transmitted on the
interface. Output errors occur when outgoing cells
are dropped or corrupted. The possible types output
errors are as follows:
• underruns—Number of times that the far-end
transmitter has been running faster than the
near-end receiver can handle.
• aborts—Number of illegal sequences of one bits
on the interface.
• loss of carrier—Number of times the interface
was reset because the carrier detect line of that
interface was up, but the line protocol was
down.
Output errors
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
543
Internal Ethernet Control Network Commands on the Cisco ASR 9000 Series Router
show controllers backplane ethernet location brief
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