/**
   * Sets iface vlan according to the other endpoint of given link.
   *
   * @param phyElement
   * @param iface
   * @param link
   * @param suggestedVLANS
   */
  private void updateIfaceVLANFromLink(
      VCPENetworkElement phyElement, Interface iface, Link link, SuggestedValues suggestedVLANs) {
    long vlan = VCPENetworkModelHelper.updateIfaceVLANFromLink(iface, link);

    suggestedVLANs.markAsSuggested(
        VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, iface),
        Long.valueOf(vlan).intValue());
  }