ARP cache assumes all entries are neutron ports - this causes errors for external interfaces

2016-11-01 21:02:10,451 | ERROR | nPool-1-worker-2 | DataStoreJobCoordinator | 321 - org.opendaylight.genius.mdsalutil-api - 0.2.0.SNAPSHOT | Exception when executing jobEntry: Job
java.lang.IllegalArgumentException: Supplied value "207566485144489:eth1:flat" does not match required pattern "^[0-9a-fA-F]

-[0-9a-fA-F]

-[0-9a-fA-F]

-[0-9a-fA-F]

$
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:145)[65:com.google.guava:18.0.0]
at org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid.<init>(Uuid.java:55)[109:org.opendaylight.mdsal.model.ietf-yang-types-20130715:2013.7.15.1
at org.opendaylight.netvirt.neutronvpn.NeutronvpnManager.getNeutronPort(NeutronvpnManager.java:1969)[365:org.opendaylight.netvirt.neutronvpn-impl:0.4.0.SNAPSHOT]
at org.opendaylight.netvirt.neutronvpn.NeutronvpnManagerImpl.getNeutronPort(NeutronvpnManagerImpl.java:63)[365:org.opendaylight.netvirt.neutronvpn-impl:0.4.0.SNAPSHOT]
at Proxy0d74555c_3677_40f2_8a0e_2e03dbf27a17.getNeutronPort(Unknown Source)[:]
at Proxyf4f5ac8a_b6c7_48e6_9372_5b4b6b037de4.getNeutronPort(Unknown Source)[:]
at org.opendaylight.netvirt.vpnmanager.VpnUtil.getGatewayIpAddressFromInterface(VpnUtil.java:1377)[361:org.opendaylight.netvirt.vpnmanager-impl:0.4.0.SNAPSHOT]
at org.opendaylight.netvirt.vpnmanager.AlivenessMonitorUtils.startArpMonitoring(AlivenessMonitorUtils.java:56)[361:org.opendaylight.netvirt.vpnmanager-impl:0.4.0.SNAPSHOT]
at org.opendaylight.netvirt.vpnmanager.ArpMonitorStartTask.call(ArpMonitorStartTask.java:41)[361:org.opendaylight.netvirt.vpnmanager-impl:0.4.0.SNAPSHOT]
at org.opendaylight.netvirt.vpnmanager.ArpMonitorStartTask.call(ArpMonitorStartTask.java:19)[361:org.opendaylight.netvirt.vpnmanager-impl:0.4.0.SNAPSHOT]
at org.opendaylight.genius.datastoreutils.DataStoreJobCoordinator$MainTask.run(DataStoreJobCoordinator.java:263)[321:org.opendaylight.genius.mdsalutil-api:0.2.0.SNAPSHOT]
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)[:1.8.0_91]
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)[:1.8.0_91]
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)[:1.8.0_91]
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)[:1.8.0_91]
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)[:1.8.0_91]