Description: This attribute specifies the maximum adaptation level that the parent trunk can reach. It determines the highest degree of adaptation that can be triggered by high trunk utilization.

When the first degree of adaptation is triggered, new calls are prevented from being established over the parent trunk, and the adaptationLevel changes to level one (1).

When the second degree of adaptation is triggered, some connections starting from the lowest holdingPriority attempt to reroute their paths using alternate trunks, and the adaptationLevel changes to level two (2).

When the third degree of adaptation is triggered, some connections starting from the lowest holdingPriority are bumped away from the parent trunk, and the adaptationLevel changes to level three (3).

The configurable values are: 0 - The adapation mechanism is disabled. 1 - Only the first degree of adaptation can be triggered. 2 - Up to two degrees of adaptation can be triggered. 3 - Up to three degrees of adaptation can be triggered.

Regardless of its value, the operator command CLEAR -hotSwap or CLEAR (without an option) can always be issued on a particular LCh/n to cause the entire path to be rerouted if possible or bumped.