- BT 21CN Lines
- TT lines - via Adjusting the profile
Interleaving affects the way error detections & correction is applied to the line. These changes take a day to take effect.
With interleaving off the round trip ("ping") time is faster (around 12ms when off, around 28ms when on). However the line is less able to cope with noise, which may cause more frequent retraining and/or a lower sync speed and BRAS rate.
The options are "Set interleave off", "Set interleave on" and "Set auto interleave" (interleave is automatically controlled by the exchange depending on the measured stability of the line).
The interleaving is set when selecting the line profile, see: Adjusting the profile