Bit Error Alarm Threshold

In this user interface, you can set bit error alarm thresholds for ports. Bit errors are the bits in a data stream that become erroneous during reception, judgment, or regeneration and deteriorate quality of the information being transmitted. When the number of bit errors reaches a preset limit, NEs will report alarms. This limit is a bit error alarm threshold. Bit error alarm thresholds are classified into the excess threshold and degrade threshold. When the degrade threshold is exceeded, signals have degraded. If bit errors keep growing and exceed the excess threshold, an excessive number of bit errors have occurred.

Navigation Path

In the NE Explorer, select the board and choose Alarm > QoS Alarm > Bit Error Alarm Threshold from the Function Tree.

NOTE:

When one bit error ratio exceeds the alarm threshold, the corresponding alarm event is reported in the NE. When one bit error ratio exceeds the performance threshold, the corresponding performance event is reported.

Parameters

Parameter	Value	Description
Monitored Object	Equipment that supports the master and slave shelf management: NE name-shelf ID(shelf name)-slot number-board name-port number(port name) Equipment that does not support the master and slave shelf management: NE name-slot number-board name-port number(port name)	Specifies the path to be monitored.
B1 Byte Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the B1 byte.
B1 Byte Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the B1 byte degraded threshold value.
B2 Byte Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the B2 byte.
B2 Byte Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the B2 byte degraded threshold value.
VC4 B3 Byte Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the B3 byte.
VC4 B3 Byte Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the B3 byte degraded threshold value.
VC3 B3 Byte Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the VC3 B3 byte.
VC3 B3 Byte Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the VC3 B3 byte degrade value.
BIP2 Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the BIP.
BIP2 Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the BIP degrade value.
SM_BIP8 Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error for SM_BIP8 detection.
SM_BIP8 Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the degraded threshold value for SM_BIP8 detection.
PM_BIP8 Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error for PM_BIP8 detection.
PM_BIP8 Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the degraded threshold value for PM_BIP8 detection.
Degrade Threshold before FEC	For example: 1.0E-3(9.798388802624274)	Indicates the FEC degraded threshold value before FEC. NOTE: If you modify the value of the FEC , the default value of the Degrade Threshold before FEC will be modified automatically.
Degrade Threshold after FEC	For example: 1.0E-3(9.798388802624274)	Indicates the FEC degraded threshold value after FEC.
TCM Excessive BER	1.0E-3 to 1.0E-9 Default: 1.0E-3	Indicates the excessive bit error of the TCM.
TCM Signal Degrade	1.0E-4 to 1.0E-9 Default: 1.0E-6	Indicates the TCM degraded threshold value.
Microwave link Excessive Errors	For example: 1.0E-3	Indicates the microwave link excessive Errors threshold value.
Microwave link Signal Degraded	For example: 1.0E-6	Indicates the microwave link signal degraded threshold value.