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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The normal T1 traffic signal contained a defect condition and has been
replaced by the AIS.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
|
|
E3
|
Alarm indication signal
|
The normal E3 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
|
|
Loss of signal
|
No remote E3 signal is being received at the E3 interface.
|
los
|
|
Out of frame
|
An out-of-frame (OOF) condition has existed for 10 seconds. This
alarm applies only to E3 interfaces configured in frame mode. The OOF failure
is cleared when no OOF or LOS defects have occurred for 20 seconds.
|
oof
|
|
Remote defect indication
|
An AIS, LOS, or OOF condition exists. This alarm applies only to E3
interfaces configured in frame mode.
|
rdi
|
|
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
|