Why you would want to designate a nonfavored interface

The interface marked as "not favored" (using the vif nofavor command) can still become the active interface when all other interfaces in a single-mode vif have failed. Even after other interfaces come back up, a nonfavored interface continues to stay active until it fails or until you, the system administrator, change the active interface using the vif favor command.

• Designating a nonfavored interface
  You might want to designate an interface as not favored so it will not be considered during random selection for an active interface in a single-mode vif.