alshabib
commented
10 years ago It seems you are using a very old flowvisor from 2008, correct? If yes please update to flowvisor 1.4.
Ali Al-Shabibi (sent from handheld)
On Jul 9, 2014, at 6:21 AM, "Changwoo, Kim" notifications@github.com wrote:
Hello, Flowvisor developer.
I want to report a bug when the lastest Flowvisor and SDN Openflow Controller send Openflow message to each other.
Environment: Ubuntu 12.04 LTS, the lastest Flowvisor(updated version:14/07/08), SDN Controller supported by OF 1.4(Mul/Ryu)
After I configure SDN controller Ip address of any slice in flowvisor, the Flowvisor is connected with SDN Controller by TCP. And then the Flowvisor first send OF message(HELLO) the SDN Controller. In this condition, the Flowvisor works well regardless of the Openflow version.
But if OF 1.3 SDN controller first send the Flowvisor Hello Message to notify the lastest OF verison, the Flowvisor can't control it and arise exception error as below; java.nio.BufferUnderflowException at java.nio.Buffer.nextGetIndex(Buffer.java:506) at java.nio.DirectByteBuffer.getShort(DirectByteBuffer.java:586) at org.openflow.protocol.OFError.readFrom(OFError.java:208) at org.openflow.protocol.factory.BasicFactory.parseMessages(BasicFactory.java:68) at org.openflow.io.OFMessageAsyncStream.read(OFMessageAsyncStream.java:54) at org.flowvisor.io.FVMessageAsyncStream.read(FVMessageAsyncStream.java:86) at org.openflow.io.OFMessageAsyncStream.read(OFMessageAsyncStream.java:44) at org.flowvisor.slicer.FVSlicer.handleIOEvent(FVSlicer.java:568) at org.flowvisor.slicer.FVSlicer.handleEvent(FVSlicer.java:466) at org.flowvisor.events.FVEventLoop.doEventLoop(FVEventLoop.java:168) at org.flowvisor.FlowVisor.run(FlowVisor.java:198) at org.flowvisor.FlowVisor.main(FlowVisor.java:231)
In conculsion, I think you have to prevent this error, even if the flowvisor not support the lastest Openflow version. In addition, I can't try to fix this bug, because the flowvisor use your customized jar files including class code.
Thanks and Regard Changwoo.
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heycwkim
Hello, Flowvisor developer.
I want to report a bug when the lastest Flowvisor and SDN Openflow Controller send Openflow message to each other.
Environment: Ubuntu 12.04 LTS, the lastest Flowvisor(updated version:14/07/08), SDN Controller supported by OF 1.4(Mul/Ryu)
After I configure SDN controller Ip address of any slice in flowvisor, the Flowvisor is connected with SDN Controller by TCP. And then the Flowvisor first send OF message(HELLO) the SDN Controller. In this condition, the Flowvisor works well regardless of the Openflow version.
But if OF 1.3 SDN controller first send the Flowvisor Hello Message to notify the lastest OF verison, the Flowvisor can't control it and arise exception error as below; java.nio.BufferUnderflowException at java.nio.Buffer.nextGetIndex(Buffer.java:506) at java.nio.DirectByteBuffer.getShort(DirectByteBuffer.java:586) at org.openflow.protocol.OFError.readFrom(OFError.java:208) at org.openflow.protocol.factory.BasicFactory.parseMessages(BasicFactory.java:68) at org.openflow.io.OFMessageAsyncStream.read(OFMessageAsyncStream.java:54) at org.flowvisor.io.FVMessageAsyncStream.read(FVMessageAsyncStream.java:86) at org.openflow.io.OFMessageAsyncStream.read(OFMessageAsyncStream.java:44) at org.flowvisor.slicer.FVSlicer.handleIOEvent(FVSlicer.java:568) at org.flowvisor.slicer.FVSlicer.handleEvent(FVSlicer.java:466) at org.flowvisor.events.FVEventLoop.doEventLoop(FVEventLoop.java:168) at org.flowvisor.FlowVisor.run(FlowVisor.java:198) at org.flowvisor.FlowVisor.main(FlowVisor.java:231)
In conculsion, I think you have to prevent this error, even if the flowvisor not support the lastest Openflow version. In addition, I can't try to fix this bug, because the flowvisor use your customized jar files including class code.
Thanks and Regard Changwoo.