func resourceLBVipV1Update(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	networkingClient, err := config.networkingV2Client(d.Get("region").(string))
	if err != nil {
		return fmt.Errorf("Error creating OpenStack networking client: %s", err)
	}

	var updateOpts vips.UpdateOpts
	if d.HasChange("name") {
		updateOpts.Name = d.Get("name").(string)
	}
	if d.HasChange("pool_id") {
		updateOpts.PoolID = d.Get("pool_id").(string)
	}
	if d.HasChange("description") {
		updateOpts.Description = d.Get("description").(string)
	}
	if d.HasChange("persistence") {
		updateOpts.Persistence = resourceVipPersistenceV1(d)
	}
	if d.HasChange("conn_limit") {
		updateOpts.ConnLimit = gophercloud.MaybeInt(d.Get("conn_limit").(int))
	}
	if d.HasChange("admin_state_up") {
		asuRaw := d.Get("admin_state_up").(string)
		if asuRaw != "" {
			asu, err := strconv.ParseBool(asuRaw)
			if err != nil {
				return fmt.Errorf("admin_state_up, if provided, must be either 'true' or 'false'")
			}
			updateOpts.AdminStateUp = &asu
		}
	}

	log.Printf("[DEBUG] Updating OpenStack LB VIP %s with options: %+v", d.Id(), updateOpts)

	_, err = vips.Update(networkingClient, d.Id(), updateOpts).Extract()
	if err != nil {
		return fmt.Errorf("Error updating OpenStack LB VIP: %s", err)
	}

	return resourceLBVipV1Read(d, meta)
}
func resourceLBVipV1Update(d *schema.ResourceData, meta interface{}) error {
	config := meta.(*Config)
	networkingClient, err := config.networkingV2Client(d.Get("region").(string))
	if err != nil {
		return fmt.Errorf("Error creating OpenStack networking client: %s", err)
	}

	var updateOpts vips.UpdateOpts
	if d.HasChange("name") {
		updateOpts.Name = d.Get("name").(string)
	}
	if d.HasChange("pool_id") {
		updateOpts.PoolID = d.Get("pool_id").(string)
	}
	if d.HasChange("description") {
		updateOpts.Description = d.Get("description").(string)
	}
	if d.HasChange("persistence") {
		updateOpts.Persistence = resourceVipPersistenceV1(d)
	}
	if d.HasChange("conn_limit") {
		updateOpts.ConnLimit = gophercloud.MaybeInt(d.Get("conn_limit").(int))
	}
	if d.HasChange("floating_ip") {
		portID := d.Get("port_id").(string)

		// Searching for a floating IP assigned to the VIP
		listOpts := floatingips.ListOpts{
			PortID: portID,
		}
		page, err := floatingips.List(networkingClient, listOpts).AllPages()
		if err != nil {
			return err
		}

		fips, err := floatingips.ExtractFloatingIPs(page)
		if err != nil {
			return err
		}

		// If a floating IP is found we unassign it
		if len(fips) == 1 {
			updateOpts := floatingips.UpdateOpts{
				PortID: "",
			}
			if err = floatingips.Update(networkingClient, fips[0].ID, updateOpts).Err; err != nil {
				return err
			}
		}

		// Assign the updated floating IP
		floatingIP := d.Get("floating_ip").(string)
		if floatingIP != "" {
			lbVipV1AssignFloatingIP(floatingIP, portID, networkingClient)
		}
	}
	if d.HasChange("admin_state_up") {
		asu := d.Get("admin_state_up").(bool)
		updateOpts.AdminStateUp = &asu
	}

	log.Printf("[DEBUG] Updating OpenStack LB VIP %s with options: %+v", d.Id(), updateOpts)

	_, err = vips.Update(networkingClient, d.Id(), updateOpts).Extract()
	if err != nil {
		return fmt.Errorf("Error updating OpenStack LB VIP: %s", err)
	}

	return resourceLBVipV1Read(d, meta)
}