Monitoring System Activity And Performance; Performance Monitoring From The H2Tu-R; Sectionalized Analysis Of The Ds1 Interface - ADC H2TU-C-202 User Manual

Monitoring System Activity and Performance

M
ONITORING
P
ERFORMANCE
The HDSL2 system provides the following maintenance screens for monitoring system activity and assessing
performance.
•
The Monitor screen provides a graphical representation of circuit activity and allow initiation of loopbacks.
•
The Performance screens provide current, 25-hour, 48-hour, and 31-day performance histories and a
continuous alarm history.
•
The Event Log provides a description of the 100 most recent events, which include their origin, time and date
of occurrence, and message.
• Following a remote logon, the Performance screens provide current and 8-hour Blockage Indicator histories
at the H2TU-R DS1 interface.
• Following a remote logon, the Sectionalized Event Log screen displays events for all four legs of the H2TU-R
DS1 interface.
P
ERFORMANCE
Network surveillance is a key maintenance strategy. Real-time monitoring of performance through sectionalized
analysis allows maintenance personnel to quickly locate a service degradation or failure. This also makes it easier
to determine if the customer or network operator must bear responsibility for service and repair.
The Performance Monitoring screens analyze the DS1 transmission by tracking the four transmission legs shown
in Figure 11.
When installed on one end of an HDSL2 DS1 circuit, the remote unit provides the following special network
benefits:
•
Real-time performance monitoring of DS1 signals in both directions of transmission
•
Non-intrusive access to real-time performance monitoring data (CPE-provided SF or ESF signal)
•
Easy access to stored DS1 PM data using the Craft port, 11-bit inband commands, or Facility Data
Link (FDL):
– Performance statistics (current, 25-hour, 48-hour, and 31-day)
– Sectionalized events for all four legs of DS1 transmission
– Blockage Indicator (a quality-of-service summary statistic for the NET-TX and CPE-TX transmission
legs at the DS1 interface)
26
S
YSTEM
M F
ONITORING ROM THE
Leg 1
Network Out (NET-TX)
Network
Leg 4
NET-RX
Figure 11. Sectionalized Analysis of the DS1 Interface
A
CTIVITY AND
H2TU-R
Leg 2
CPE-RX
H2TU-R
Customer Interface
Leg 3
Network In (CPE-TX)
June 28, 2002
LTPH-UM-1161-01
H2TU-C-202 List 3F