363-206-305
Maintenance Description
Issue 3 June 2000
9-25
— DS1 — DS1 near-end path is monitored for SF framing and both
near-end and far-end paths are monitored for ESF framing. The data
is displayed in ES-P, SES-P, and UAS-P categories. CV-P is also
displayed.
— DS3 — DS3 path incoming from the fiber (high-speed side) is
monitored for P-bit and F&M bit and the data is displayed in CV-P,
ES-P, SES-P, and UAS-P registers. In addition, severely errored
frame second (SEFS) is also monitored and displayed.
DS3 path incoming from the DSX-3 (low-speed side) is also
monitored, in addition to monitoring the path from the fiber, for P-bit
and F&M bit. The same registers are also displayed for the data
from the DSX-3. DS3 path from both the fiber and the DSX-3 are
monitored for C-bit and are displayed in the same registers as
above. The far-end data (FEBE bits) is monitored and displayed as
well.
VT Performance Monitoring
9
VT performance monitoring provides performance monitoring of the V5 byte for
errored seconds, severely errored seconds, and unavailable seconds. VT
performance monitoring is a feature package option that requires feature package
software licensed by Lucent and the use of the
set-feat
command to enable the
feature.
The counts are retrieved using the
rtrv-pm-vt1
command to determine if the
service is operating within tariffed limits.
DS1 Performance Monitoring
9
DS1 performance monitoring is a feature package option that requires feature
package software licensed by Lucent and the use of the
set-feat
command to
enable the feature. Refer to Figure 9-10. DS1 performance monitoring measures
near-end performance and extended superframe format far-end performance
report of the incoming DS1, allowing service providers to determine the end-to-
end performance of a DS1 signal. Tariffed service verification consists of
monitoring performance parameters that can be associated with the customer's
end-to-end service. The DDM-2000 OC-1 Multiplexer provides this capability for
DS1 services with the DS1 performance monitoring feature. Based on the
American National Standards Institute
ANSI
T1.403 extended superframe format
(ESF), this capability retrieves performance report messages written into the ESF
data link by the customer's terminal equipment.
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