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Monitoring vdsl performance history – Accton Technology VS4512DC User Manual

Page 102

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Configuring the Switch

3-72

Monitoring VDSL Performance History

This page displays line and channel performance data information during selected
15 minute intervals over the last 24 hours of switch operation, and during selected
1-day intervals from the current day to 30 days ago.

Command Attributes

Line – Select the VDSL line from the drop-down list.
Channel – Select Slow or Fast from the drop-down list.
Side – This only displays Local. All information displayed is for data

transmission from the switch to the CPE.

• Line Performance Data History Information

For the 15 Min Interval column, interval 1 is the most recent interval; interval 96
is 24 hours ago.
For the 1 Day Interval column, interval 1 is the most recent day; interval 30 is 30
days ago.
- Loss of Frame (LOF) – Number of seconds that there was loss of framing in

the indicated time interval.

- Loss of Signal (LOS) – Number of seconds that there was loss of signal in

the indicated time interval.

- Loss of Power – Number of seconds that there was loss of power in the

indicated time interval.

- Loss of Link – Number of seconds that there was loss of link in the indicated

time interval.

- Errored Second – Number of errored seconds in the indicated time interval.

An errored second is a one-second interval containing one or more CRC
anomalies, or one or more LOS or LOF defects.

- Severely Errored Second – Number of severely errored seconds in the

indicated time interval. An errored second is a one-second interval containing
one or more one or more CRC anomalies, or one or more LOS or LOF
defects.

- Unavailable Second – Count of unavailable seconds in the indicated time

interval.

- Init – Number of line initialization attempts in the indicated time interval. This

count includes both successful and failed attempts.

• Channel Performance Data History Information

- Fixed Octet – Number of corrected octets in the indicated time interval.
- Bad Block – Number of uncorrectable blocks in the indicated time interval.

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