How to use

requestPackets

method

in

org.onosproject.net.packet.PacketService

private void requestPackets() {
  if (arpEnabled) {
    packetService.requestPackets(buildArpSelector(), CONTROL, appId);
  } else {
    packetService.cancelPackets(buildArpSelector(), CONTROL, appId);
  }
  if (ndpEnabled) {
    packetService.requestPackets(buildNeighborSolicitationSelector(),
        CONTROL, appId);
    packetService.requestPackets(buildNeighborAdvertisementSelector(),
        CONTROL, appId);
  } else {
    packetService.cancelPackets(buildNeighborSolicitationSelector(),
        CONTROL, appId);
    packetService.cancelPackets(buildNeighborAdvertisementSelector(),
        CONTROL, appId);
  }
}

/**
 * Requests packet intercepts.
 */
private void requestIntercepts() {
  TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
  selector.matchEthType(TYPE_LLDP);
  packetService.requestPackets(selector.build(), PacketPriority.CONTROL, appId);
  selector.matchEthType(TYPE_BSN);
  if (useBddp) {
    packetService.requestPackets(selector.build(), PacketPriority.CONTROL, appId);
  } else {
    packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId);
  }
}

    DefaultTrafficSelector.builder();
selectorBuilder.matchEthType(TYPE_ARP);
packetService.requestPackets(selectorBuilder.build(),
               CONTROL, appId);
if (ipv6NeighborDiscovery) {
  packetService.requestPackets(selectorBuilder.build(),
                 CONTROL, appId);
} else {
selectorBuilder.matchIcmpv6Type(NEIGHBOR_ADVERTISEMENT);
if (ipv6NeighborDiscovery) {
  packetService.requestPackets(selectorBuilder.build(),
                 CONTROL, appId);
} else {