A desired threshold for the number of Severely Errored Seconds
(SES) within any given 15-minute performance data collection
interval.
If the number of SESs in a particular 15-minute collection
interval reaches or exceeds this value, a
gBondPmTca15MinSESCrossing notification MAY be generated if
enabled by gBondPortConfPmTcaEnable.
At most one notification can be sent per interval.
Setting this attribute to zero (default) effectively disables
gBondPmTca15MinSESCrossing notification.
This object maps to the TR-159 attribute
aGroupPerfThreshold15MinSES.