On Fri, 19 Oct 2018 23:56:38 +0900,
Pynbiang Hadem wrote:
>
> [1 <multipart/alternative (7bit)>]
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> Hi,
>
> I am running two VMs; *VM1* and *VM2*. Each VM has a simple topology as
> follows.
>
> *VM1:* * VM2:*
> ==== ====
> h1------s1--------s2 <--------> s4--------s3---------h3
> | |
> h2 h4
>
> I am using *internal network* to connect the two VMs.
> VM1 has an internal adapter with IP: 192.168.1.1
> VM1 has an internal adapter with IP: 192.168.1.254
>
> I'm using a GRE tunnel in the mininet python script as below:
> # Configure the GRE tunnel On VM1:
> s2.cmd('ovs-vsctl add-port s2 s2-gre1 -- set interface s2-gre1 type=gre
> options:remote_ip=192.168.1.1')
>
> # Configure the GRE tunnel On VM2:
> s4.cmd('ovs-vsctl add-port s4 s4-gre1 -- set interface s4-gre1 type=gre
> options:remote_ip=192.168.1.254')
>
> If i run (controller -v ptcp:6633) or (sudo ryu-manager --verbose
> ryu/app/simple_switch_13.py) as controller in VM1 and VM2, i am able to
> ping from h1 to 10.0.3.3(h3 on VM2).
>
> However, when i run (sudo ryu-manager --verbose ryu/app/rest_router.py) i
> am not able to ping from h1 to to 10.0.3.3(h3 on VM2).
They differ how L2 switching is performed.
AFAIK rest_router does L2 switching using OFPP_NORMAL, while
simple_switch_13 implements the switching logic.
I have no idea why OFPP_NORMAL doesn't work in your setup.
Please use tcpdump, ovs-ofctl dump-flows, etc. to find where your
packets are dropped to debug the problem.
--
IWAMOTO Toshihiro
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