Consider an ATM line module that supports a maximum of 16,000 configured subinterfaces and a maximum of 8000 active subinterfaces. If all 16,000 static ATM 1483 subinterfaces attempt to connect to the router, only the first 8000 subinterfaces to receive traffic are able to log in, generate dynamic interface columns, and become active. When a subscriber connected through one of these active subinterfaces logs out, the router enables the first of the remaining 8000 inactive subinterfaces that receives traffic to connect as a replacement for the subscriber that logged out.