Basic Index Intrksou - Nortel DMS-100 Series Application Manual

6-208 6-208 SPMS MTCEPERF index descriptions

Basic index INTRKSOU

Section
TERMNALS
Description
Incoming trunk system outage
Definition
The average fraction of equivalent one-way incoming trunks is unable to
give access to the switch because of an outage in the peripherals on which
the trunks terminate, failures in the facilities carrying the trunks, or failures
of individual trunks.
DMS-100G Switch does not contribute to or provide an equivalent of OM
group TRK, measurement SBU.
Measurement list
The measurement used for INTRKSOU is the sum of maintenance-busy
usage (TRK SBU) over all incoming and two-way trunk groups.
System-busy usage for incoming trunks is given twice the weight of usage
for two-way trunks. This creates a measurement of equivalent one-way
incoming trunk outage.
Normalizer
INTRKSOU is normalized per working equivalent one-way incoming trunk
per unit time. In calculating the number of working equivalent one-way
incoming trunks, one-way incoming trunks are given twice the weight of
two-way trunks.
Diagnostics
Verify OM groups to determine which trunking PM type (XPM, TM, DCM)
is not available. Use TRK, SBU to locate the specific trunk groups affected.
Use DS1CARR, DS1SBU (or PCMCARR, CARRSYSB in International
offices) to locate specific carrier systems. Check logs TRK106 and
TRK109.
297-1001-330 Standard 11.04 June 1998
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