You control automatic configuration by the AUTOCRTCTL parameter in the token ring, Ethernet, DDI, or WLS line descriptions. This parameter can be changed at any time. It is not necessary to vary off controllers that are attached to these line descriptions before changing the AUTOCRTCTL parameter to *YES or *NO.
Automatic configuration is controlled on a line-by-line basis. That is, one line may specify AUTOCRTCTL(*YES) and another line may specify AUTOCRTCTL(*NO). The automatic configuration support for LANs is not related to the QAUTOCFG system value. The setting of QAUTOCFG has no effect on this support.