Chapter 7. Configuring the Network Port

packets. Lost packet counts are given in the STATISTICS menus.

Choices: DISABLED or ENABLED.

Delay Measurement (PVC DELAY)

Set to ENABLE only if there are TSU IQ+s on both ends of the PVC. When enabled, the TSU IQ+ periodically transmits a loopback frame to the remote TSU IQ+ which is then returned to measure round trip delay of each PVC. Minimum, maximum, and average delay measurements are given in the STATISTICS menus.

Choices: ENABLE or DISABLE.

Stats Option (STATS OPT)

This option prioritizes PVCs for STATISTICS counts. The TSU IQ+ tracks statistics for a limited number of the PVCs that pass through. This number is determined in the MAX PVC COUNT field (see Maximum PVC Count on page 7-5). The three choices for this field are described below:

Auto

If set to AUTO, then statistics will be logged for this PVC if the MAX PVC COUNT has not been exceeded. The AUTO selection designates a PVC as second priority to a PVC set to ENABLED.

Enabled

If set to ENABLED, then statistics will be logged for this PVC if the MAX PVC COUNT has not been exceeded. A PVC set to ENABLED is designated as a higher priority than one set to AUTO.

Disabled

If set to DISABLED, then statistics will not be logged for this PVC at any time.

If the TSU IQ+ encounters a PVC that has not been entered into the PVC OPTIONS table, the PVC is set to AUTO by default.

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TSU IQ+ User Manual

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ADTRAN TSU IQ+, 1204002L2 user manual Delay Measurement PVC Delay, Stats Option Stats OPT, Auto, Enabled, Disabled