code: func sysctlInitIface(iface string) error {
  	for _, ctl := range seesawIfaceSysctls {
  		if err := sysctlIface(iface, ctl.af, ctl.name, ctl.value); err != nil {
  			return err
  		}
  	}
  	return nil
  }
docs: // sysctlInitIface initialises sysctls required for a load balancing interface.