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DS1 (T1)
|
Alarm indication signal
|
The normal T1 traffic signal contained a defect condition and has been
replaced by the AIS. A transmission interruption occurred at the remote endpoint
or upstream of the remote endpoint. This all-ones signal is transmitted to
prevent consequential downstream failures or alarms.
|
ais
|
|
Yellow alarm
|
The remote endpoint is in red alarm failure. This condition is also
known as a far end alarm failure.
|
ylw
|
|
Ethernet (Fast Ethernet)
|
Link is down
|
The physical link is unavailable.
|
link-down
|
|
Integrated services
|
Hardware or software failure
|
On the adaptive services module, either the hardware associated with
the module, or the software that drives the module, has failed.
|
failure
|
|
Serial
|
Clear-to-Send signal absent
|
The remote endpoint of the serial link is not transmitting a CTS signal.
The CTS signal must be present before data can be transmitted across a serial
link.
|
cts-absent
|
|
Data Carrier Detect signal absent
|
The remote endpoint of the serial link is not transmitting a DCD signal.
Because the DCD signal transmits the state of the router, no signal probably
indicates that the remote endpoint of the serial link is unavailable.
|
dcd-absent
|
|
Data Set Ready signal absent
|
The remote endpoint of the serial link is not transmitting a DSR signal.
The DSR signal indicates that the remote endpoint is ready to receive and
transmit data across the serial link.
|
dsr-absent
|
|
Loss of receive clock
|
The clock signal from the remote endpoint is not present. Serial connections
require clock signals to be transmitted from one endpoint and received by
the other endpoint of the link.
|
loss-of-rx-clock
|
|
Loss of transmit clock
|
The local clock signal is not present. Serial connections require clock
signals to be transmitted from one endpoint and received by the other endpoint
of the link.
|
loss-of-tx-clock
|
|
Services
|
Services module hardware down
|
A hardware problem has occurred on the Services Router's services module.
This error typically means that one or more of the CPUs on the module has
failed.
|
hw-down
|
|
Services link down
|
The link between the Services Router and its services module is unavailable.
|
linkdown
|
|
Services module held in reset
|
The Services Router's services module is stuck in reset mode. If the services
module fails to start up five or more times in a row, the services module
is held in reset mode. Startup fails when the amount of time from CPU release
to CPU halt is less than 300 seconds.
|
pic-hold-reset
|
|
Services module reset
|
The Services Router's services module is resetting. The module resets
after it crashes or is reset from the CLI, or when it takes longer than 60 seconds
to start up.
|
pic-reset
|
|
Services module software down
|
A software problem has occurred on the Services Router's services module.
|
sw-down
|
|
T3 (DS3)
|
Alarm indication signal
|
The normal T3 traffic signal contained a defect condition and has been
replaced by the AIS. A transmission interruption occurred at the remote endpoint
or upstream of the remote endpoint. This all-ones signal is transmitted to
prevent consequential downstream failures or alarms.
|
ais
|
|
Excessive number of zeros
|
The bit stream received from the upstream host has more consecutive
zeros than are allowed in a T3 frame.
|
exz
|
|
Far-end receive failure
|
The remote endpoint of the connection has failed. A FERF differs from
a yellow alarm, because the failure can be any failure, not just an out-of-frame
(OOF) or loss-of-signal (LOS) failure.
|
ferf
|
|
Idle alarm
|
The Idle signal is being received from the remote endpoint.
|
idle
|
|
Line code violation
|
Either the line encoding along the T3 link is corrupted, or a mismatch
between the encoding at the local and remote endpoints of a T3 connection
occurred.
|
lcv
|
|
Loss of frame
|
An out-of-frame (OOF) or loss-of-signal (LOS) condition has existed
for 10 seconds. The loss-of-frame (LOF) failure is cleared when no OOF
or LOS defects have occurred for 20 seconds. A LOF failure is also called
a red failure.
|
lof
|
|
Loss of signal
|
No remote T3 signal is being received at the T3 interface.
|
los
|
|
Phase-locked loop out of lock
|
The clocking signals for the local and remote endpoints no longer operate
in lock-step.
|
pll
|
|
Yellow alarm
|
The remote endpoint is in red alarm failure. This condition is also
known as a far end alarm failure.
|
ylw
|