Dear Lori,

Now I will just try to get lisp tunneling working. From there I think I can
understand the behavior and fix my issue.

I have two VMs. Vm1 and Vm2. Each of them have eth1 on them which are used
to connect them. Before starting OVS and doing anything, I can ping other
Vm successfully. As soon as I add this eth1 to a bridge that I created, the
ping no longer works.

In the lisp tunneling, it is shown that the ethernet port which connects
the hypervisors are added to the bridge. Also I do not want to add a
hypervisor in my lisp tunneling. I need to show tunneling between VMs and
thus I think the need of a tap0 port is not necessary in my case. Please
correct me if I am wrong.



Best Regards,
Ashish Kurian

On Mon, Nov 7, 2016 at 12:17 PM, Lori Jakab <[email protected]> wrote:

> Hi,
>
> It's hard to tell what's happening, since you applied a patch to OVS. I
> would suggest using a combination of `ovs-appctl ofproto/trace` and
> `ovs-dpctl show` to figure out what's happening.
>
> -Lori
>
> On 11/7/16 12:54 PM, Ashish Kurian wrote:
> > Dear Lori,
> >
> > Rather than that I have the following flow.
> >
> > table=0,dl_dst=06:00:00:00:00:00,tun_id=0x1,action=mod_dl_
> dst:00:00:00:00:00:01,output:1
> >
> > This is for GTP tunneling that I have applied as a patch to OVS. One
> > question I have is : If I am not connecting eth1 manually to OVS s1,
> > how is the gtp flows passing through eth1 (I am seeing flows happening
> > on wireshark)
> >
> > PS: eth1 in VM1 and VM2 connects them together.
> >
> > Best Regards,
> > Ashish Kurian
> >
> > On Mon, Nov 7, 2016 at 11:12 AM, Lori Jakab <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> >     On 11/4/16 4:45 PM, Ashish Kurian wrote:
> >     > Dear Lori,
> >     >
> >     > Thanks for the response. What more details do you require?
> >     >
> >     > Another thing is that, if I do not attach the eth1 to the
> >     switches and
> >     > give static arp entries, the ping works. If you wish I can send you
> >     > the python script for the topology and the flows that I used, so
> >     that
> >     > you can analyse.
> >
> >     Did you set up a flow like this on each OVS swicth?
> >
> >     priority=3,dl_dst=02:00:00:00:00:00,action=mod_dl_dst:<VMx_
> MAC>,output:1
> >
> >     I won't have time to analyze scripts and logs, sorry.
> >
> >     -Lori
> >
> >     >
> >     > The eth1 is set a static IP address and used as internal network in
> >     > the virtual box network configuration.
> >
> >
>
>
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