Comment 2 for bug 845507

FYI, this is changed now to only ignore the specific case that the ip is bound already (exit code 254)

36 def bind_floating_ip(floating_ip, device):
 437 """Bind ip to public interface."""
 438 _execute('ip', 'addr', 'add', str(floating_ip) + '/32',
 439 'dev', device,
 440 run_as_root=True, check_exit_code=[0, 254])

That said, the fixes dean adden in the above branch are still useful for returning a useful error to the user.