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4. Maintenance
4-4
February 2001 3160-A2-GB21-90
Table 4-2. Device Health and Status Messages (1 of 2)
Message Description
LOS at Net A Loss Of Signal condition (175 consecutive zeros) has been
detected on the network interface. The condition is cleared when the
density of ones to zeros received is 12.5%.
LOS at DTE A Loss Of Signal condition (175 consecutive zeros) has been
detected on the DTE Drop/Insert (DSX-1) interface. The condition is
cleared when the density of ones to zeros received is 12.5%.
OOF at Net An Out Of Frame condition (2 out of 4 frame synchronization bits in
error) has been detected on the network interface. The condition is
cleared when a reframe occurs.
OOF at DTE An Out Of Frame condition has been detected on the DTE
Drop/Insert (DSX-1) interface. The condition is cleared when a
reframe occurs.
AIS at Net An Alarm Indication Signal (unframed all ones signal) is being
received by the network interface.
AIS at DTE An Alarm Indication Signal is being received by the DTE Drop/Insert
(DSX-1) interface.
EER at Net An Excessive Error Rate condition has been detected on the
network interface (the bit error rate has exceeded the configured
threshold for ESF framing). The condition is cleared when the error
rate falls below the threshold value.
Yellow at Net A Yellow Alarm signal is being received by the network interface.
Yellow at DTE A Yellow Alarm signal is being received by the DTE Drop/Insert
(DSX-1) interface.
OOF at Prt
n
An Out Of Frame condition has been detected on data port Prt
n
(where
n
is the port number). This condition only occurs if the
synchronous data port’s Embedded Data Link (EDL) is enabled (only
available for 2-port and 4-port DSU/CSUs).
EER at Prt
n
The error rate of the received signal has exceeded the configured
threshold for data port Prt
n
(where
n
is the port number). This
condition only occurs if the synchronous data port’s Embedded Data
Link (EDL) is enabled (only available for 2-port and 4-port
DSU/CSUs). The condition is cleared when the error rate falls below
the synchronous data port’s configured threshold value.
PORT
IP Down The IP management link is in a down state for
PORT
(where
PORT
is COM, MODEM, or AUX). This condition occurs if the
PORT
is
configured for Mgmt, and communication between the management
system and the DSU/CSU is not currently possible for this port. For
the AUX port, this condition is detected only when a device reset or
power-up occurs.
Selftest failed A failure was detected during the power-on self-test. Select STest (in
the Stat branch) to display more information about the failure.
DevFail
xxxxxxxx
An internal error has been detected by the operating software. An
8-digit code appears for use by service personnel. The condition is
cleared by resetting the device.
Download failed A download attempt was interrupted and failed to complete. The
condition is cleared by resetting the device.