ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 217)

9. Network Management System (NMS) Functions
MSAP2000 Technical Manual V3.0 9-3
9.3. Performance Monitoring (PM)
Performance Monitoring is when the System collects various
performance data, and stores them within the database to be
analyzed by the administrator, to decipher signal transmission
quality and performance. The User can designate preferred
System filtering conditions, so that performance monitoring can be
managed intelligently, and the System can automatically generate
alarm warnings and execute switch protection mechanisms.
Performance Monitoring includes items such as PM data
generation and collection, TCA setup, TCA reporting, and PM data
storage.
Modules which
Support PM Functions The following MSAP2000 modules support Performance
Monitoring functions, such as alarm warning, and automatic
switch protection.
„ OIM/SM1 (STM-1 Trunk Module), SM4(STM-4 Trunk Module)
„ QE1M (Quad E1)
„ GSH (G.SHDSL Line Module)
„ ETH
„ C/REoSM
„ GbE
„ AAM
PM Data Generation
After the subject that is to be monitored is initiated, PM data is
generated. The data generation process is as follows:
„ Initiate CRC/BOP counting and collation functions, to generate
PM data.
„ Verify the received Line codes, and calculate the code violation
quantity
„ Analyze and process FEBE (Far End Block Error) commands
PM Data Collection
PM Modules will collect near end and far end performance
parameters, such as:
„ Bit Error Ratio (BER)
„ Error Second (ES)
„ Severely Error Second (SES)
„ Unavailable
Second (UAS)
„ RX/TX Bytes, RX/TX packets, CRC ERROR, DROP packtes
PM Data Storage
Near end and far end parameters are collected, and then stored
within the System. The data is categorized into three types:
„ Current ES, SES and UAS data
„ ES, SES and UAS historical data generated within the most
recent 96 15-minute periods
„ ES, SES and UAS historical data generated within the most
recent 7 days
TCA Setting
MSAP2000 is able to continuously monitor the System’s
transmission quality, so that immediate alerts can be generated, in
the event of transgressions. The User may monitor TCS settings
via NMA and LCT. When circuit performance approaches the
pre-set TCA threshold, a TCA alert will be issued to the NMS and
LCT, and the alert will also be saved as an alarm record.