How do I delete previously configured sub-interfaces?? I have a 2650xm running 12.3.3 on which three frame-relay sub-interfaces were defined. These were on serial 0/1 ie s0/1.403 etc then config deleted and removed to put the interfaces on s0/0. But the deleted interfaces still show in show ip interface brief as a method of unset. There is now config left in and each line was removed individually (not just the interface).
