Information Technology Reference
In-Depth Information
Table5-2
show interfaces fddi Field Descriptions (continued)
Field
Description
ignored
Number of received packets ignored by the interface
because the interface hardware ran low on internal
buffers. These buffers are different from the system
buffers mentioned previously in the
buffer
description.
Broadcast storms and bursts of noise can cause the
ignored count to be increased.
packets output
Total number of messages transmitted by the system.
bytes
Total number of bytes, including data and MAC
encapsulation, transmitted by the system.
underruns
Number of transmit aborts (when the router cannot feed
the transmitter fast enough).
output errors
Sum of all errors that prevented the final transmission of
datagrams out of the interface being examined. Note that
this might not balance with the sum of the enumerated
output errors because some datagrams can have more than
one error and others can have errors that do not fall into
any of the specifically tabulated categories.
collisions
Because an FDDI ring cannot have collisions, this
statistic is always zero.
interface resets
Number of times an interface has been reset. The interface
may be reset by the administrator or automatically when
an internal error occurs.
restarts
Should always be zero for FDDI interfaces.
output buffer failures
Number of no-resource errors received on the output.
output buffers swapped
out
Number of packets swapped to DRAM.
transitions
Number of times the ring made a transition from ring
operational to ring nonoperational, or vice versa. A large
number of transitions indicates a problem with the ring or
the interface.
traces
Indicates the number of times this interface started a
trace. Trace count applies to both the FCI, FCIT, and FIP.
claims
Pertains to FCIT and FIP only. Indicates the number of
times this interface has been in claim state.
beacons
Pertains to FCIT and FIP only. Indicates the number of
times the interface has been in beacon state.
1.
CMT =connection management
2.
DAS =dual-attachment station
3.
SAS =single-attachment station
4.
FIP =FDDI processor
