D-272
Cisco Transport Manager Release 7.2 User Guide
78-17630-01
AppendixD Slot Property Information—FC_MR-4, FMEC, Multirate, Optical, and Transponder Cards
Transponder Cards
D.5.17.5 Current Tab
The Current tab allows you to assign performance monitoring thresholds for the wavelength converter
module laser current levels.
TableD-349 Field Descriptions for the Quality of ServiceTab
Field Description
B1 Counters
Errored Seconds Sets the highthreshold forthe numberof B1errored seconds(ES) and the alarm severity
level. An errored second is a one-second period with one or more error blocks or at least
one defect.
Severely Errored Seconds Setsthe high threshold forthe number of B1severely errored seconds (SES)and the alarm
severity level. A severely errored second is a one-second period that contains at least 30
percent of errored blocks or at least one defect.
Background Block Errors Sets the high threshold for thenumber of B1 backgroundblock errors (BBE) and the alarm
severity level. An errored block is a block in which one or more bits are in error. A
backgroundblock error is an errored block that does not occur as part of a severely errored
second.
Bit Error Rate Sets the high threshold for the B1 bit error rate (BER) and the alarm severity level. The
BER is the ratio of received bits that contain errors.
FEC Counters
Errored Seconds Sets the high threshold for the number of FEC ES and the alarm severity level.
Severely Errored Seconds Sets the high threshold for the number of FEC SES and the alarm severity level.
Background Block Errors Sets the high threshold for the number of FEC BBE and the alarm severity level.
Unavailable Seconds Sets the high threshold for the number of FEC unavailable seconds (UAS) and the alarm
severity level. The detection of 10 consecutive SES begins a period of UAS. The 10 SES
detected are part of the UAS.The ES and SES counters decrement by 10 seconds and the
UAS counter increments by an equivalent number of seconds. A new period of available
time begins at the onset of 10 consecutive non-SES events.
Error Corrected Rate Sets the high threshold for the bit error corrected rate (ECR) and the alarm severity level.
The ECR is the ratio of FEC bit errors corrected to bits transmitted.
Uncorrected Codewords Rate Sets the high threshold for the uncorrected codeword rate (UCR) and the alarm severity
level. The UCR is the ratio of uncorrected codewords to codewords transmitted. A
codeword is a block ofN symbols that carry K information symbols and R redundant
symbols (N = K+R).
Unavailable Seconds Sets the high threshold for the number of B1 unavailable seconds (UAS) and the alarm
severity level. The detection of 10 consecutive SES begins a period of UAS. The 10 SES
detected are part of the UAS.The ES and SES counters decrement by 10 seconds and the
UAS counter increments by an equivalent number of seconds. A new period of available
time begins at the onset of 10 consecutive non-SES events.