A. Adding any new interface card to the NBX chassis, for example, Digital Line Card, Hub card, etc.

B. Change to NCP information, for example, IP address, default gateway

C. Change to Digital Line Card protocol, for example, Standard IP or IP On-the-Fly

D. Removing an interface card from an NBX chassis

E. New software version

F. Change to network protocol, for example, Standard IP or IP On-the-Fly