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Thomas Vachuska
Committed by Gerrit Code Review
05453c98 1 parent e796610b

ONOS-2846, ONOS-2812 Reworking link discovery provider to be fully configurable … 

…and to prune links based on links rather than based on ports.

Change-Id: I0a042403baf163bebd471bffd112b28571dae75b
Inline Side-by-side
Showing 4 changed files with 265 additions and 220 deletions
/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.provider.lldp.impl;
import org.onosproject.mastership.MastershipService;
import org.onosproject.net.link.LinkProviderService;
import org.onosproject.net.packet.PacketService;
/**
* Shared context for use by link discovery.
*/
public interface DiscoveryContext {
/**
* Returns the shared mastership service reference.
*
* @return mastership service
*/
MastershipService mastershipService();
/**
* Returns the shared link provider service reference.
*
* @return link provider service
*/
LinkProviderService providerService();
/**
* Returns the shared packet service reference.
*
* @return packet service
*/
PacketService packetService();
/**
* Returns the probe rate in millis.
*
* @return probe rate
*/
long probeRate();
/**
* Returns the max stale link age in millis.
*
* @return stale link age
*/
long staleLinkAge();
/**
* Indicates whether to emit BDDP.
*
* @return true to emit BDDP
*/
boolean useBDDP();
}
......@@ -15,7 +15,6 @@
*/
package org.onosproject.provider.lldp.impl;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import org.apache.felix.scr.annotations.Activate;
......@@ -57,9 +56,11 @@ import java.io.IOException;
import java.util.Dictionary;
import java.util.EnumSet;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledExecutorService;
import static com.google.common.base.Strings.isNullOrEmpty;
import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.onlab.util.Tools.get;
......@@ -67,19 +68,16 @@ import static org.onlab.util.Tools.groupedThreads;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Provider which uses an OpenFlow controller to detect network
* infrastructure links.
* Provider which uses LLDP and BDDP packets to detect network infrastructure links.
*/
@Component(immediate = true)
public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
private static final String PROVIDER_NAME = "org.onosproject.provider.lldp";
private static final String PROP_USE_BDDP = "useBDDP";
private static final String PROP_DISABLE_LD = "disableLinkDiscovery";
private static final String PROP_LLDP_SUPPRESSION = "lldpSuppression";
private static final String DEFAULT_LLDP_SUPPRESSION_CONFIG = "../config/lldp_suppression.json";
private static final String FORMAT =
"Settings: enabled={}, useBDDP={}, probeRate={}, " +
"staleLinkAge={}, lldpSuppression={}";
private final Logger log = getLogger(getClass());
......@@ -105,24 +103,41 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
private ScheduledExecutorService executor;
private static final long INIT_DELAY = 5;
private static final long DELAY = 5;
private static final String PROP_ENABLED = "enabled";
@Property(name = PROP_ENABLED, boolValue = true,
label = "If false, link discovery is disabled")
private boolean enabled = false;
private static final String PROP_USE_BDDP = "useBDDP";
@Property(name = PROP_USE_BDDP, boolValue = true,
label = "Use BDDP for link discovery")
private boolean useBDDP = true;
@Property(name = PROP_DISABLE_LD, boolValue = false,
label = "Permanently disable link discovery")
private boolean disableLinkDiscovery = false;
private static final String PROP_PROBE_RATE = "probeRate";
private static final int DEFAULT_PROBE_RATE = 3_000;
@Property(name = PROP_PROBE_RATE, intValue = DEFAULT_PROBE_RATE,
label = "LLDP and BDDP probe rate specified in millis")
private int probeRate = DEFAULT_PROBE_RATE;
private static final long INIT_DELAY = 5;
private static final long DELAY = 5;
private static final String PROP_STALE_LINK_AGE = "staleLinkAge";
private static final int DEFAULT_STALE_LINK_AGE = 10_000;
@Property(name = PROP_STALE_LINK_AGE, intValue = DEFAULT_STALE_LINK_AGE,
label = "Number of millis beyond which links will be considered stale")
private int staleLinkAge = DEFAULT_STALE_LINK_AGE;
// FIXME: convert to use network config subsystem instead
private static final String PROP_LLDP_SUPPRESSION = "lldpSuppression";
private static final String DEFAULT_LLDP_SUPPRESSION_CONFIG = "../config/lldp_suppression.json";
@Property(name = PROP_LLDP_SUPPRESSION, value = DEFAULT_LLDP_SUPPRESSION_CONFIG,
label = "Path to LLDP suppression configuration file")
private String lldpSuppression = DEFAULT_LLDP_SUPPRESSION_CONFIG;
private final DiscoveryContext context = new InternalDiscoveryContext();
private final InternalLinkProvider listener = new InternalLinkProvider();
private final InternalRoleListener roleListener = new InternalRoleListener();
protected final Map<DeviceId, LinkDiscovery> discoverers = new ConcurrentHashMap<>();
......@@ -141,57 +156,82 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
public void activate(ComponentContext context) {
cfgService.registerProperties(getClass());
appId = coreService.registerApplication(PROVIDER_NAME);
// to load configuration at startup
modified(context);
if (disableLinkDiscovery) {
log.info("LinkDiscovery has been permanently disabled by configuration");
return;
log.info("Started");
}
@Deactivate
public void deactivate() {
cfgService.unregisterProperties(getClass(), false);
disable();
log.info("Stopped");
}
@Modified
public void modified(ComponentContext context) {
Dictionary<?, ?> properties = context != null ? context.getProperties() : new Properties();
boolean newEnabled, newUseBddp;
int newProbeRate, newStaleLinkAge;
String newLldpSuppression;
try {
String s = get(properties, PROP_ENABLED);
newEnabled = isNullOrEmpty(s) || Boolean.parseBoolean(s.trim());
s = get(properties, PROP_USE_BDDP);
newUseBddp = isNullOrEmpty(s) || Boolean.parseBoolean(s.trim());
s = get(properties, PROP_PROBE_RATE);
newProbeRate = isNullOrEmpty(s) ? probeRate : Integer.parseInt(s.trim());
s = get(properties, PROP_STALE_LINK_AGE);
newStaleLinkAge = isNullOrEmpty(s) ? staleLinkAge : Integer.parseInt(s.trim());
s = get(properties, PROP_LLDP_SUPPRESSION);
newLldpSuppression = isNullOrEmpty(s) ? DEFAULT_LLDP_SUPPRESSION_CONFIG : s;
} catch (NumberFormatException e) {
log.warn(e.getMessage());
newEnabled = enabled;
newUseBddp = useBDDP;
newProbeRate = probeRate;
newStaleLinkAge = staleLinkAge;
newLldpSuppression = lldpSuppression;
}
boolean wasEnabled = enabled;
enabled = newEnabled;
useBDDP = newUseBddp;
probeRate = newProbeRate;
staleLinkAge = newStaleLinkAge;
lldpSuppression = newLldpSuppression;
if (!wasEnabled && enabled) {
enable();
} else if (wasEnabled && !enabled) {
disable();
}
log.info(FORMAT, enabled, useBDDP, probeRate, staleLinkAge, lldpSuppression);
}
private void enable() {
providerService = providerRegistry.register(this);
deviceService.addListener(listener);
packetService.addProcessor(listener, PacketProcessor.advisor(0));
masterService.addListener(roleListener);
LinkDiscovery ld;
for (Device device : deviceService.getAvailableDevices()) {
if (rules.isSuppressed(device)) {
log.debug("LinkDiscovery from {} disabled by configuration", device.id());
continue;
}
ld = new LinkDiscovery(device, packetService, masterService,
providerService, useBDDP);
discoverers.put(device.id(), ld);
addPorts(ld, device.id());
}
processDevices();
executor = newSingleThreadScheduledExecutor(groupedThreads("onos/device", "sync-%d"));
executor.scheduleAtFixedRate(new SyncDeviceInfoTask(), INIT_DELAY, DELAY, SECONDS);
loadSuppressionRules();
requestIntercepts();
log.info("Started");
}
private void addPorts(LinkDiscovery discoverer, DeviceId deviceId) {
for (Port p : deviceService.getPorts(deviceId)) {
if (rules.isSuppressed(p)) {
continue;
}
if (!p.number().isLogical()) {
discoverer.addPort(p);
}
}
}
@Deactivate
public void deactivate() {
cfgService.unregisterProperties(getClass(), false);
if (disableLinkDiscovery) {
return;
}
private void disable() {
withdrawIntercepts();
providerRegistry.unregister(this);
......@@ -199,37 +239,36 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
packetService.removeProcessor(listener);
masterService.removeListener(roleListener);
if (executor != null) {
executor.shutdownNow();
}
discoverers.values().forEach(LinkDiscovery::stop);
discoverers.clear();
providerService = null;
log.info("Stopped");
providerService = null;
}
@Modified
public void modified(ComponentContext context) {
if (context == null) {
loadSuppressionRules();
return;
private void processDevices() {
for (Device device : deviceService.getAvailableDevices()) {
if (rules.isSuppressed(device)) {
log.debug("LinkDiscovery from {} disabled by configuration", device.id());
continue;
}
LinkDiscovery ld = new LinkDiscovery(device, context);
discoverers.put(device.id(), ld);
addPorts(ld, device.id());
}
}
@SuppressWarnings("rawtypes")
Dictionary properties = context.getProperties();
String s = get(properties, PROP_DISABLE_LD);
if (!Strings.isNullOrEmpty(s)) {
disableLinkDiscovery = Boolean.valueOf(s);
private void addPorts(LinkDiscovery discoverer, DeviceId deviceId) {
for (Port p : deviceService.getPorts(deviceId)) {
if (rules.isSuppressed(p)) {
continue;
}
s = get(properties, PROP_USE_BDDP);
if (!Strings.isNullOrEmpty(s)) {
useBDDP = Boolean.valueOf(s);
if (!p.number().isLogical()) {
discoverer.addPort(p);
}
s = get(properties, PROP_LLDP_SUPPRESSION);
if (!Strings.isNullOrEmpty(s)) {
lldpSuppression = s;
}
requestIntercepts();
loadSuppressionRules();
}
private void loadSuppressionRules() {
......@@ -275,13 +314,7 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId);
}
private LinkDiscovery createLinkDiscovery(Device device) {
return new LinkDiscovery(device, packetService, masterService,
providerService, useBDDP);
}
private class InternalRoleListener implements MastershipListener {
@Override
public void event(MastershipEvent event) {
if (MastershipEvent.Type.BACKUPS_CHANGED.equals(event.type())) {
......@@ -298,22 +331,15 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
if (rules.isSuppressed(device)) {
return;
}
synchronized (discoverers) {
if (!discoverers.containsKey(deviceId)) {
// ideally, should never reach here
log.debug("Device mastership changed ({}) {}", event.type(), deviceId);
discoverers.put(deviceId, createLinkDiscovery(device));
}
}
discoverers.computeIfAbsent(deviceId, k -> new LinkDiscovery(device, context));
}
}
private class InternalLinkProvider implements PacketProcessor, DeviceListener {
@Override
public void event(DeviceEvent event) {
LinkDiscovery ld = null;
LinkDiscovery ld;
Device device = event.subject();
Port port = event.port();
if (device == null) {
......@@ -333,7 +359,7 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
return;
}
log.debug("Device added ({}) {}", event.type(), deviceId);
discoverers.put(deviceId, createLinkDiscovery(device));
discoverers.put(deviceId, new LinkDiscovery(device, context));
} else {
if (ld.isStopped()) {
log.debug("Device restarted ({}) {}", event.type(), deviceId);
......@@ -418,7 +444,6 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
}
private final class SyncDeviceInfoTask implements Runnable {
@Override
public void run() {
if (Thread.currentThread().isInterrupted()) {
......@@ -433,13 +458,9 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
}
DeviceId did = dev.id();
synchronized (discoverers) {
LinkDiscovery discoverer = discoverers.get(did);
if (discoverer == null) {
discoverer = createLinkDiscovery(dev);
discoverers.put(did, discoverer);
}
addPorts(discoverer, did);
LinkDiscovery ld = discoverers
.computeIfAbsent(did, k -> new LinkDiscovery(dev, context));
addPorts(ld, did);
}
}
} catch (Exception e) {
......@@ -449,4 +470,35 @@ public class LLDPLinkProvider extends AbstractProvider implements LinkProvider {
}
}
private class InternalDiscoveryContext implements DiscoveryContext {
@Override
public MastershipService mastershipService() {
return masterService;
}
@Override
public LinkProviderService providerService() {
return providerService;
}
@Override
public PacketService packetService() {
return packetService;
}
@Override
public long probeRate() {
return probeRate;
}
@Override
public long staleLinkAge() {
return staleLinkAge;
}
@Override
public boolean useBDDP() {
return useBDDP;
}
}
}
......
......@@ -22,37 +22,30 @@ import org.jboss.netty.util.TimerTask;
import org.onlab.packet.Ethernet;
import org.onlab.packet.ONOSLLDP;
import org.onlab.util.Timer;
import org.onosproject.mastership.MastershipService;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Link.Type;
import org.onosproject.net.LinkKey;
import org.onosproject.net.Port;
import org.onosproject.net.PortNumber;
import org.onosproject.net.link.DefaultLinkDescription;
import org.onosproject.net.link.LinkDescription;
import org.onosproject.net.link.LinkProviderService;
import org.onosproject.net.packet.DefaultOutboundPacket;
import org.onosproject.net.packet.OutboundPacket;
import org.onosproject.net.packet.PacketContext;
import org.onosproject.net.packet.PacketService;
import org.slf4j.Logger;
import java.nio.ByteBuffer;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static org.onosproject.net.PortNumber.portNumber;
import static org.onosproject.net.flow.DefaultTrafficTreatment.builder;
import static org.slf4j.LoggerFactory.getLogger;
// TODO: add 'fast discovery' mode: drop LLDPs in destination switch but listen for flow_removed messages
// FIXME: add ability to track links using port pairs or the link inventory
/**
* Run discovery process from a physical switch. Ports are initially labeled as
* slow ports. When an LLDP is successfully received, label the remote port as
......@@ -64,34 +57,23 @@ public class LinkDiscovery implements TimerTask {
private final Logger log = getLogger(getClass());
private static final short MAX_PROBE_COUNT = 3; // probes to send before link is removed
private static final short DEFAULT_PROBE_RATE = 3000; // millis
private static final String SRC_MAC = "DE:AD:BE:EF:BA:11";
private static final String SERVICE_NULL = "Service cannot be null";
private final Device device;
// send 1 probe every probeRate milliseconds
private final long probeRate = DEFAULT_PROBE_RATE;
private final Set<Long> slowPorts = Sets.newConcurrentHashSet();
// ports, known to have incoming links
private final Set<Long> fastPorts = Sets.newConcurrentHashSet();
// number of unacknowledged probes per port
private final Map<Long, AtomicInteger> portProbeCount = Maps.newHashMap();
private final DiscoveryContext context;
private final ONOSLLDP lldpPacket;
private final Ethernet ethPacket;
private Ethernet bddpEth;
private final boolean useBDDP;
private Timeout timeout;
private volatile boolean isStopped;
private final LinkProviderService linkProvider;
private final PacketService pktService;
private final MastershipService mastershipService;
// Set of ports to be probed
private final Set<Long> ports = Sets.newConcurrentHashSet();
// Most recent time a link was seen
private final Map<LinkKey, Long> linkTimes = Maps.newConcurrentMap();
/**
* Instantiates discovery manager for the given physical switch. Creates a
......@@ -99,18 +81,11 @@ public class LinkDiscovery implements TimerTask {
* Starts the the timer for the discovery process.
*
* @param device the physical switch
* @param pktService packet service
* @param masterService mastership service
* @param providerService link provider service
* @param useBDDP flag to also use BDDP for discovery
* @param context discovery context
*/
public LinkDiscovery(Device device, PacketService pktService,
MastershipService masterService,
LinkProviderService providerService, Boolean... useBDDP) {
public LinkDiscovery(Device device, DiscoveryContext context) {
this.device = device;
this.linkProvider = checkNotNull(providerService, SERVICE_NULL);
this.pktService = checkNotNull(pktService, SERVICE_NULL);
this.mastershipService = checkNotNull(masterService, SERVICE_NULL);
this.context = context;
lldpPacket = new ONOSLLDP();
lldpPacket.setChassisId(device.chassisId());
......@@ -122,15 +97,12 @@ public class LinkDiscovery implements TimerTask {
ethPacket.setPayload(this.lldpPacket);
ethPacket.setPad(true);
this.useBDDP = useBDDP.length > 0 ? useBDDP[0] : false;
if (this.useBDDP) {
bddpEth = new Ethernet();
bddpEth.setPayload(lldpPacket);
bddpEth.setEtherType(Ethernet.TYPE_BSN);
bddpEth.setDestinationMACAddress(ONOSLLDP.BDDP_MULTICAST);
bddpEth.setPad(true);
log.info("Using BDDP to discover network");
}
isStopped = true;
start();
......@@ -145,15 +117,8 @@ public class LinkDiscovery implements TimerTask {
* @param port the port
*/
public void addPort(Port port) {
boolean newPort = false;
synchronized (this) {
if (!containsPort(port.number().toLong())) {
newPort = true;
slowPorts.add(port.number().toLong());
}
}
boolean isMaster = mastershipService.isLocalMaster(device.id());
boolean newPort = ports.add(port.number().toLong());
boolean isMaster = context.mastershipService().isLocalMaster(device.id());
if (newPort && isMaster) {
log.debug("Sending init probe to port {}@{}", port.number().toLong(), device.id());
sendProbes(port.number().toLong());
......@@ -161,59 +126,31 @@ public class LinkDiscovery implements TimerTask {
}
/**
* Removes physical port from discovery process.
*
* @param port the port
*/
public void removePort(Port port) {
// Ignore ports that are not on this switch
long portnum = port.number().toLong();
synchronized (this) {
if (slowPorts.contains(portnum)) {
slowPorts.remove(portnum);
} else if (fastPorts.contains(portnum)) {
fastPorts.remove(portnum);
portProbeCount.remove(portnum);
// no iterator to update
} else {
log.warn("Tried to dynamically remove non-existing port {}", portnum);
}
}
}
/**
* Method called by remote port to acknowledge receipt of LLDP sent by
* this port. If slow port, updates label to fast. If fast port, decrements
* number of unacknowledged probes.
*
* @param portNumber the port
* @param key link key
*/
public void ackProbe(Long portNumber) {
synchronized (this) {
if (slowPorts.contains(portNumber)) {
log.debug("Setting slow port to fast: {}:{}", device.id(), portNumber);
slowPorts.remove(portNumber);
fastPorts.add(portNumber);
portProbeCount.put(portNumber, new AtomicInteger(0));
} else if (fastPorts.contains(portNumber)) {
portProbeCount.get(portNumber).set(0);
private void ackProbe(LinkKey key) {
long portNumber = key.src().port().toLong();
if (ports.contains(portNumber)) {
linkTimes.put(key, System.currentTimeMillis());
} else {
log.debug("Got ackProbe for non-existing port: {}", portNumber);
}
}
}
/**
* Handles an incoming LLDP packet. Creates link in topology and sends ACK
* to port where LLDP originated.
*
* @param context packet context
* @param packetContext packet context
* @return true if handled
*/
public boolean handleLLDP(PacketContext context) {
Ethernet eth = context.inPacket().parsed();
public boolean handleLLDP(PacketContext packetContext) {
Ethernet eth = packetContext.inPacket().parsed();
if (eth == null) {
return false;
}
......@@ -221,20 +158,21 @@ public class LinkDiscovery implements TimerTask {
ONOSLLDP onoslldp = ONOSLLDP.parseONOSLLDP(eth);
if (onoslldp != null) {
PortNumber srcPort = portNumber(onoslldp.getPort());
PortNumber dstPort = context.inPacket().receivedFrom().port();
PortNumber dstPort = packetContext.inPacket().receivedFrom().port();
DeviceId srcDeviceId = DeviceId.deviceId(onoslldp.getDeviceString());
DeviceId dstDeviceId = context.inPacket().receivedFrom().deviceId();
ackProbe(dstPort.toLong());
DeviceId dstDeviceId = packetContext.inPacket().receivedFrom().deviceId();
ConnectPoint src = new ConnectPoint(srcDeviceId, srcPort);
ConnectPoint dst = new ConnectPoint(dstDeviceId, dstPort);
ackProbe(LinkKey.linkKey(src, dst));
LinkDescription ld = eth.getEtherType() == Ethernet.TYPE_LLDP ?
new DefaultLinkDescription(src, dst, Type.DIRECT) :
new DefaultLinkDescription(src, dst, Type.INDIRECT);
try {
linkProvider.linkDetected(ld);
context.providerService().linkDetected(ld);
} catch (IllegalStateException e) {
return true;
}
......@@ -256,48 +194,37 @@ public class LinkDiscovery implements TimerTask {
if (isStopped()) {
return;
}
if (!mastershipService.isLocalMaster(device.id())) {
if (!context.mastershipService().isLocalMaster(device.id())) {
if (!isStopped()) {
// reschedule timer
timeout = Timer.getTimer().newTimeout(this, probeRate, MILLISECONDS);
timeout = Timer.getTimer().newTimeout(this, context.probeRate(), MILLISECONDS);
}
return;
}
log.trace("Sending probes from {}", device.id());
synchronized (this) {
Iterator<Long> fastIterator = fastPorts.iterator();
while (fastIterator.hasNext()) {
long portNumber = fastIterator.next();
int probeCount = portProbeCount.get(portNumber).getAndIncrement();
// Prune stale links
linkTimes.entrySet().stream()
.filter(e -> isStale(e.getKey(), e.getValue()))
.map(Map.Entry::getKey).collect(Collectors.toSet())
.forEach(this::pruneLink);
if (probeCount < LinkDiscovery.MAX_PROBE_COUNT) {
log.trace("Sending fast probe to port {}", portNumber);
sendProbes(portNumber);
// Probe ports
log.trace("Sending probes from {}", device.id());
ports.forEach(this::sendProbes);
} else {
// Link down, demote to slowPorts; update fast and slow ports
fastIterator.remove();
slowPorts.add(portNumber);
portProbeCount.remove(portNumber);
ConnectPoint cp = new ConnectPoint(device.id(), portNumber(portNumber));
log.debug("Link down -> {}", cp);
linkProvider.linksVanished(cp);
if (!isStopped()) {
timeout = Timer.getTimer().newTimeout(this, context.probeRate(), MILLISECONDS);
}
}
// send a probe for the next slow port
for (long portNumber : slowPorts) {
log.trace("Sending slow probe to port {}", portNumber);
sendProbes(portNumber);
}
private void pruneLink(LinkKey key) {
linkTimes.remove(key);
LinkDescription desc = new DefaultLinkDescription(key.src(), key.dst(), Type.DIRECT);
context.providerService().linkVanished(desc);
}
if (!isStopped()) {
// reschedule timer
timeout = Timer.getTimer().newTimeout(this, probeRate, MILLISECONDS);
}
private boolean isStale(LinkKey key, long lastSeen) {
return lastSeen < (System.currentTimeMillis() - context.staleLinkAge());
}
public synchronized void stop() {
......@@ -351,19 +278,18 @@ public class LinkDiscovery implements TimerTask {
private void sendProbes(Long portNumber) {
log.trace("Sending probes out to {}@{}", portNumber, device.id());
OutboundPacket pkt = createOutBoundLLDP(portNumber);
pktService.emit(pkt);
if (useBDDP) {
context.packetService().emit(pkt);
if (context.useBDDP()) {
OutboundPacket bpkt = createOutBoundBDDP(portNumber);
pktService.emit(bpkt);
context.packetService().emit(bpkt);
}
}
public boolean containsPort(Long portNumber) {
return slowPorts.contains(portNumber) || fastPorts.contains(portNumber);
}
public synchronized boolean isStopped() {
return isStopped || timeout.isCancelled();
}
boolean containsPort(long portNumber) {
return ports.contains(portNumber);
}
}
......
......@@ -108,7 +108,6 @@ public class LLDPLinkProviderTest {
provider.providerRegistry = linkService;
provider.masterService = masterService;
provider.activate(null);
}
......