When using Openstack and 3 node ODL cluster, with one ODL to handle neutron requests and the other two members as Managers in the OVS of Openstack. There were repeated warning messages in karf.log of one of the nodes

ogress.
2016-01-20 19:28:49,585 | WARN | pool-32-thread-1 | LLDPDiscoveryUtils | 271 - org.opendaylight.openflowplugin.applications.topology-lldp-discovery - 0.2.0.SNAPSHOT | SECURITY ALERT: there is probably a LLDP spoofing attack in progress.
2016-01-20 19:28:54,582 | WARN | pool-32-thread-1 | LLDPDiscoveryUtils | 271 - org.opendaylight.openflowplugin.applications.topology-lldp-discovery - 0.2.0.SNAPSHOT | SECURITY ALERT: there is probably a LLDP spoofing attack in progress.
2016-01-20 19:28:54,592 | WARN | pool-32-thread-1 | LLDPDiscoveryUtils | 271 - org.opendaylight.openflowplugin.applications.topology-lldp-discovery - 0.2.0.SNAPSHOT | SECURITY ALERT: there is probably a LLDP spoofing attack in progress.
2016-01-20 19:28:59,583 | WARN | pool-32-thread-1 | LLDPDiscoveryUtils | 271 - org.opendaylight.openflowplugin.applications.topology-lldp-discovery - 0.2.0.SNAPSHOT | SECURITY ALERT: there is probably a LLDP spoofing attack in progress.
2016-01-20 19:28:59,584 | WARN | pool-32-thread-1 | LLDPDiscoveryUtils | 271 - org.opendaylight.openflowplugin.applications.topology-lldp-discovery - 0.2.0.SNAPSHOT | SECURITY ALERT: there is probably a LLDP spoofing attack in progress.