/**
* The BDDP packets are forwarded out of all the ports out of an openflowdomain. Get all the
* switches in the same openflow domain as the sw (disabling tunnels). Then get all the external
* switch ports and send these packets out.
*
* @param sw
* @param pi
* @param cntx
*/
protected void doFloodBDDP(long pinSwitch, OFPacketIn pi, FloodlightContext cntx) {
TopologyInstanceKHopMetric ti = getCurrentInstance(false);
Set<Long> switches = ti.getSwitchesInOpenflowDomain(pinSwitch);
if (switches == null) {
// indicates no links are connected to the switches
switches = new HashSet<Long>();
switches.add(pinSwitch);
}
for (long sid : switches) {
IOFSwitch sw = floodlightProvider.getSwitches().get(sid);
if (sw == null) continue;
Collection<Short> enabledPorts = sw.getEnabledPortNumbers();
if (enabledPorts == null) continue;
Set<Short> ports = new HashSet<Short>();
ports.addAll(enabledPorts);
// all the ports known to topology // without tunnels.
// out of these, we need to choose only those that are
// broadcast port, otherwise, we should eliminate.
Set<Short> portsKnownToTopo = ti.getPortsWithLinks(sid);
if (portsKnownToTopo != null) {
for (short p : portsKnownToTopo) {
NodePortTuple npt = new NodePortTuple(sid, p);
if (ti.isBroadcastDomainPort(npt) == false) {
ports.remove(p);
}
}
}
// remove the incoming switch port
if (pinSwitch == sid) {
ports.remove(pi.getInPort());
}
// we have all the switch ports to which we need to broadcast.
doMultiActionPacketOut(pi.getPacketData(), sw, ports, cntx);
}
}
