OVS Port remains DOWN in OpenFlow inventory when using Mininet 2.1.0 with OVS 2.0 OF1.0

The latest regression runs for VTN CSIT jobs reports failure in normal flow installation when testing with OF 1.0 switches. The same jobs are not reporting failures when testing with OF 1.3 switches.

VTN CSIT Jobs URL reporting failures
https://jenkins.opendaylight.org/releng/view/vtn/job/vtn-csit-1node-manager-only-boron/637/
https://jenkins.opendaylight.org/releng/view/vtn/job/vtn-csit-1node-coordinator-only-boron/209/

Karaf Log URL
https://logs.opendaylight.org/releng/jenkins092/vtn-csit-1node-manager-only-boron/637/archives/karaf.log.gz
https://logs.opendaylight.org/releng/jenkins092/vtn-csit-1node-coordinator-only-boron/209/archives/karaf.log.gz

Observation

During the failure scenario the below error was observed in the log

2016-08-28 19:34:22,691 | WARN | entLoopGroup-5-3 | DeviceContextImpl | 183 - org.opendaylight.openflowplugin.impl - 0.3.0.SNAPSHOT | Error processing port status message:
org.opendaylight.controller.md.sal.common.api.data.TransactionChainClosedException: Cannot write into transaction.
at org.opendaylight.openflowplugin.impl.device.TransactionChainManager.writeToTransaction(TransactionChainManager.java:233)[183:org.opendaylight.openflowplugin.impl:0.3.0.SNAPSHOT]
at org.opendaylight.openflowplugin.impl.device.DeviceContextImpl.writeToTransaction(DeviceContextImpl.java:223)[183:org.opendaylight.openflowplugin.impl:0.3.0.SNAPSHOT]
at org.opendaylight.openflowplugin.impl.device.DeviceContextImpl.processPortStatusMessage(DeviceContextImpl.java:331)[183:org.opendaylight.openflowplugin.impl:0.3.0.SNAPSHOT]
at org.opendaylight.openflowplugin.impl.device.listener.OpenflowProtocolListenerFullImpl.onPortStatusMessage(OpenflowProtocolListenerFullImpl.java:94)[183:org.opendaylight.openflowplugin.impl:0.3.0.SNAPSHOT]
at org.opendaylight.openflowjava.protocol.impl.core.connection.ConnectionAdapterImpl.consumeDeviceMessage(ConnectionAdapterImpl.java:129)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at org.opendaylight.openflowjava.protocol.impl.core.connection.AbstractConnectionAdapterStatistics.consume(AbstractConnectionAdapterStatistics.java:66)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at org.opendaylight.openflowjava.protocol.impl.core.connection.ConnectionAdapterImpl.consume(ConnectionAdapterImpl.java:43)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at org.opendaylight.openflowjava.protocol.impl.core.DelegatingInboundHandler.channelRead(DelegatingInboundHandler.java:46)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)[116:io.netty.transport:4.0.37.Final]
at org.opendaylight.openflowjava.protocol.impl.core.connection.AbstractOutboundQueueManager.channelRead(AbstractOutboundQueueManager.java:195)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)[117:io.netty.codec:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)[117:io.netty.codec:4.0.37.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)[117:io.netty.codec:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)[117:io.netty.codec:4.0.37.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)[117:io.netty.codec:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:152)[119:io.netty.handler:4.0.37.Final]
at org.opendaylight.openflowjava.protocol.impl.core.IdleHandler.channelRead(IdleHandler.java:39)[173:org.opendaylight.openflowjava.openflow-protocol-impl:0.8.0.SNAPSHOT]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1280)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:890)[116:io.netty.transport:4.0.37.Final]
at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:879)[120:io.netty.transport-native-epoll:4.0.37.Final]
at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:387)[120:io.netty.transport-native-epoll:4.0.37.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:296)[120:io.netty.transport-native-epoll:4.0.37.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112)[115:io.netty.common:4.0.37.Final]
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145)[115:io.netty.common:4.0.37.Final]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_101]

The packets received at the ports were dropped as the status was reported as down.

2016-08-28 19:35:13,879 | WARN | Runner: VTN Main | VBridge | 194 - org.opendaylight.vtn.manager.implementation - 0.5.0.SNAPSHOT | vBridge:Tenant1/vBridge1: Drop packet because egress port is down: src=0e:d0:3e:75:86:41, dst=52:5b:30:b8:d8:0b, port=openflow:2:1, type=0x806, vlan=0

this is a blocker for VTN testing in OF 1.0 switches.