Yes, I had a 5 nodes ring topology and it worked fine.
But the flood actions are probably causing a flood storm.
Spanning tree is not added to the code. It shouldn't be hard to add it thou.
I created this post
<http://sdn-lab.com/2014/12/25/shortest-path-forwarding-with-openflow-on-ryu/#more-108>
in my blog trying to explain the code a little better.
Flávio Castro Jr.
MSCS student at Georgia Tech
B.S.E in Networks Engineering from the University of Brasilia.
CCNA Certified
(404) 660-9373
On Wed, Dec 31, 2014 at 10:16 AM, Padma Jayasankar <[email protected]>
wrote:
> HI,
> Will this code work for the networks which have loops. If not, is it
> possible to incorporate this code with simple_switch_stp.py? Please clarify.
>
> Thanks and Regards,
> Padma V
>
> On Fri, Dec 19, 2014 at 6:20 AM, Flavio Junior <[email protected]>
> wrote:
>
>> I just posted it to github here: https://github.com/castroflavio/ryu
>>
>> Please take a look at the code (shortestpath.py). The most important
>> parts are the networkx SP computation and the topology discovery
>> (ryu.topology). Networkx is a python library to do graph operations.
>>
>> We just finished the project, so I wasn't able to delete unnecessary info
>> there. Feel free to modify it and add your name to the list of
>> collaborators. Also, if you use our code as starting point I'd be extremely
>> glad if recognize it on your code.
>>
>> It's a very simple code. If you still have doubts after spending some
>> time reading I'll be glad to answer your questions.
>>
>> *Flávio Jr*
>>
>> (61) 8448-4003
>>
>> On Thu, Dec 18, 2014 at 6:35 PM, Padma Jayasankar <[email protected]>
>> wrote:
>>>
>>> Hi,
>>> Thanks for the info..But i haven't used networkx earlier..I have to do
>>> the shortest path calculation in openflow networks..If i ues networkx, can
>>> it be used with openflow(Am using Mininet,Ryu and OVS). Please clarify.
>>>
>>> Thanks and Regards,
>>> Padma V
>>>
>>> On Thu, Dec 18, 2014 at 10:08 PM, Flavio Junior <[email protected]>
>>> wrote:
>>>>
>>>> I've done shortest path forwarding using networkx. You can get the
>>>> topology using the get topology api.
>>>>
>>>> I haven't posted my code to github yet, but I'll do it asap. Let me
>>>> know if there are other solutions.
>>>>
>>>> On Thu, Dec 18, 2014 at 10:41 AM, Padma Jayasankar <[email protected]>
>>>> wrote:
>>>>
>>>> Hi All,
>>>> I am new to Rye. I went through ryu ebook to know the basics. For my
>>>> project , i have to find the backup path along with working path when a
>>>> ping request comes. Am using Mininet , OVS and Ryu. Earlier i used POX and
>>>> used the l2_multi that computes the shortest path by accessing the
>>>> topology. Now as i want to use openflow 1.3 features , i am moving to Ryu.
>>>> In Ryu is thee any app which is equivalent to l2_multi. If not is it
>>>> possible to write such one..If yes, please give some guidance.
>>>>
>>>> Thanks and Regards,
>>>> Padma V
>>>>
>>>>
>>
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