EDM01-09v7 DAG 3.8S Card User Guide
©2005
19
Version 9: May 2006
Inspect
interface
statistics
Once the card has been configured as expected, the interface statistics
should be inspected to see if the card is locked to the data stream.
dag@endace:~$ dagthree -d dag0 -si
Status bits
display
The tool will display a number of status bits as they have occurred since
the last time read. In our example, the interval is set to one second via the
-i
option.
los
Multiplexor loss of signal.
If set, this indicates that there is either no signal at
the receiver or the optical signal strength is too low
to be recognized.
bip3,bip2,bip1
Bit interleaved parity byte error.
These bits indicate a problem as reported by
SONET B3, B2 and B1 overhead octets. If any of
these bits are set, the card connection to the link is
impaired.
If oof and lof indicators are set along with bip's, the
OCx carrier configuration is incorrect. Otherwise it
indicates a signal problem related to either low
light levels reaching the
dag
monitor, or true
SONET-level errors as reported by SONET
equipment operating the link to be monitored.
lop
Loss of pointer.
If set the pointer processing logic has not locked to
the SONET frame. It may indicate incorrect OC3c
vs. OC12c setting.
oof
Out of frame.
If set, the section overhead processor is not locked
to the SONET stream. It may indicate incorrect
OC3c vs. OC12c setting.
Summary of Contents for DAG 3.8S
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