Device sets I/F Configuration Pending Bit in Attr. 1, if the value of Attr. 3 changes, but the device supports immediate apply and a Interface Configuration does not required a reset

Device sets I/F Configuration Pending Bit in Attr. 1, if the value of Attr. 3 changes, but the device supports immediate apply and a Interface Configuration does not required a reset.

Vol. 2 Ed. 1.21 - 5-4.3.2.1 Status – Attribute 1 - Table 5-4.4:

Indicates a pending configuration change in the Interface Configuration attribute. This bit shall be 1 (TRUE) when Interface Configuration attribute are set and the device requires a reset in order for the configuration change to take effect (as indicated in the Configuration Capability attribute).
The intent of the Interface Config Pending bit is to allow client software to detect that a device’s IP configuration has changed, but will not take effect until the device is reset.