Hi Mehmet,

For your instability issue could you check that the connection between the 
switches and flowvisor is stable. That'll give us a better idea of where to 
start looking. You can verify this by running fvctl list-datapaths and 
confirming that all 4 switches remain connected. If they are always connected 
then you should probably capture a packet trace between flowvisor and the 
controllers to see what is actually going on. This can be done with wireshark.


> 
> Also, even though the flowspaces of myslice1&2 are successfully created and 
> all switches are getting connected successfully, FV does not send the 
> packet_ins to both slice switches but only to one e.g. controller:8001.
> 

So flowvisor does not do this. It will only forward control traffic to one 
slice. In your case myslice1 takes precedence because it has a higher priority 
and matches all dpids.

> Overall, what i am trying to do is to slice the network into virtual subnets, 
> and here i explained the problems I had during doing that. What I am doing 
> may not be the best way, I would appreciate any help or comment. 

Slicing on the dpid only will be tricky because having two entire datapaths in 
two different slices is nearly impossible, you need some other variable to 
discriminate on. I don't know what kind of virtual subnets you want to build, 
but have you considered slicing on IPs or even vlans? Another alternative which 
is quite simple is to slice on a combination of dpids and ports. 

Let me know if this helps.

> Thanks for the time.
> 
> Mehmet Fatih Aktas
> 
> 
> On Tue, Feb 26, 2013 at 3:08 PM, Ali Al-Shabibi <ali.al-shab...@stanford.edu> 
> wrote:
> Hi Mehmet,
> 
> FlowVisor can reside anywhere really (within a reasonable latency), so you 
> could have it running in the mininet VM or on another machine. Just point 
> your mininet network to the FlowVisor.
> 
> This can be done by giving the --controller remote option to mininet. That 
> said, I'd be interested to know what problems you had installing FlowVisor.
> 
> >
> > Is there any simple tutorial or any resource that can help me to get on 
> > board quickly ?
> 
> Unfortunately not yet, but I will be putting the tutorials up online 
> officially soon, although they may not be very different to the ones you have 
> found yet.
> 
> Hope this helps!
> 
> > Thanks.
> >
> > Mehmet Fatih Aktas
> > _______________________________________________
> > openflow-discuss mailing list
> > openflow-discuss@lists.stanford.edu
> > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
> 
> 
> 
> 
> 

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