The Relationships Of Oms To Spms; Multiple Tuple Om Groups Used In Spms - Nortel DMS-100 Series Application Manual

The relationships of OMs to SPMS

Multiple tuple OM groups used in SPMS

Table 8-1 contains OM groups that are used to generate SPMS indices.
Because they have multiple tuples, which can provide more detailed
information than SPMS, their contents should be saved for reference for at
least 18 hours, and preferably longer, when SPMS reveals a problem. The
18-hour period assumes that SPMS results will be examined in the morning,
with the results available for the busy period of the previous day and on into
the night just past. Such a retention period can be achieved by defining four
daily accumulating classes, each covering a different 6-h period of the day,
all containing the same OM groups. To ensure proper collection of OM data
for SPMS, you should set up an SPMS class for OMs.
An alternative method of operation is to set up seven daytime classes, each
collecting 24 hours of data for one day of the week. This provides the
highly desirable advantage of a longer time perspective, at the cost of being
unable to narrow problems down to a particular time of day.
Most of the measurements specified below typically have zero values in
normal operation. Thus, if they are being output rather than simply held in
memory, the zero-suppression feature yields a major saving in output
volume.
Table 8-1
OM group usage (multiple tuples)
OM group
ANN
APSYS
C7GTWSCR
DMS-100 Family Switch Performance Monitoring System Application Guide BASE09 and up
Registers
ANNOVFL, ANNSBU, ANNMBU
APCPUFLT, APMEMFLT, APMSMPXU, APPRTFLT,
APSSMPXU, APSSYNC, APTRMISM
MSUSCRER
—continued—
8-1