Not able to ping between hosts for RYU controller network

[goutham krishna Teja]

Hello,

I created a simple switch network with ryu controller as below

when i try to ping from the host h1 to host h2. As first request h1 sends arp request to h2 is not successful and no response from h2 therefore h1 keep on sending arp to reach h2.  I have used the simple_learning_13.py script from Ryu package example.

PFA for screen shot of my terminals.

I tried the above in mininet simulator, it worked well.

can anyone help me out?

Thanks,
Goutham

[Vicraj Thomas]

Hi Goutham,

Have you verified:
1. You can ping from the switch VM to the controller VM
2. The switch has connected to the controller?

< Vic

On 11/19/15 2:52 PM, goutham krishna Teja wrote:
>
>
> Hello,
>
> I created a simple switch network with ryu controller as below
>

> <https://lh3.googleusercontent.com/-fdj-ZRRbl0A/Vk4xKMnMmDI/AAAAAAAAAc4/eU5Iy-XOCIs/s1600/Screenshot%2Bfrom%2B2015-11-19%2B14%253A28%253A49.png>

>
>
>
>
>
>
>
>
>
>
>
> when i try to ping from the host h1 to host h2. As first request h1
> sends arp request to h2 is not successful and no response from h2
> therefore h1 keep on sending arp to reach h2. I have used the
> simple_learning_13.py script from Ryu package example.
>
> PFA for screen shot of my terminals.
>
> I tried the above in mininet simulator, it worked well.
>
> can anyone help me out?
>
> Thanks,
> Goutham
>

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[nriga]

Hi Goutham, 

Can you please double check that your hosts are on the same subnet (just do ifconfig)? If they are on different subnets and you are running a simple l2_learning module, then your packets will not get to your destination (no one is doing routing between your subnets). 

Best, 

Niky