Test Results
368
FTB-700G/800 Series
Performance Monitoring
UAS
(Unavailable Second): Gives the count of the seconds
corresponding to the periods of unavailable time that begins at the
onset of 10 consecutive SES events, including these 10 seconds. A
period of available time shall begin at the onset of 10 consecutive
non-SES events, including these 10 seconds.
ESR
(Errored Second Ratio) (
G.821
,
G.826
,
G.828
, and
G.829
): Gives
the ratio of the number of ES in available time (AS) during a fixed
measurement interval.
ESR = ES ÷ AS
SESR
(Severely Errored Second Ratio) (
G.821
,
G.826
,
G.828
, and
G.829
): Gives the ratio of the number of SES in available time (AS)
during a fixed measurement interval.
SESR = SES ÷ AS
BBER
(Background Block Error Ratio) (
G.826
,
G.828
,
G.829
, and
M.2101
): Gives the ratio of BBE in available time (AS) to total blocks in
available time during a fixed measurement interval. The count of total
blocks excludes all blocks during SESs.
DM
(Degraded Minutes) (
G.821
only): A Degraded Minute is the
number of minutes in which the estimated error rate exceeds 10
-6
but
does not exceed 10
-3
. DM is determined by collecting all of the
Available Seconds, removing any SES grouping the result in 60-second
long groups and counting a 60-second long group as degraded if the
cumulative errors during the seconds present in the group exceed 10
-6
.
Содержание FTB-1
Страница 1: ...User Guide FTB 700G 800 Series NetBlazer for FTB 1 ETHERNET AND MULTISERVICE TESTER...
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Страница 59: ...Test Setup Test Applications NetBlazer 47 SONET SDH BERT For SDH BERT...
Страница 64: ...Test Setup Test Applications 52 FTB 700G 800 Series SONET SDH DSn PDH BERT For SDH...
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Страница 604: ...Glossary 592 FTB 700G 800 Series Acronym List W WAN Wide Area Network WIS WAN Interface Sublayer WWN World Wide Name...
Страница 606: ...Glossary 594 FTB 700G 800 Series 10G Ethernet Client The following figure presents a typical network application...
Страница 619: ...Glossary NetBlazer 607 Ethernet Cables Straight Through Cable 1000 Mbit s Crossover Cable 1000 Mbit s...
Страница 646: ...Glossary 634 FTB 700G 800 Series SONET DSn SDH PDH The GUI Grid indicates the TUG 2 x and TUG 3 x values...
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