[pox-dev] no route to host - loop topology

[Murphy McCauley]

Hmm...  I wonder if you're getting a loop anyway.

As a first test, what happens if you try using l2_learning instead of l3_learning?

What if you manually down links to remove loops?

-- Murphy

On Dec 24, 2013, at 10:42 AM, Silvia Fichera <fichera.sil at gmail.com> wrote:

> Hi all,
> I have a topology with loops, and my version of Pox is up-to-date.
> I run pox in this way:
> 
> ./pox.py forwarding.l3_learning openflow.discovery --eat-early-packets openflow.spanning_tree --no-flood --hold-down
> 
> after running pox I start mininet and I try to build a tcp connection with iperf from 2 hosts to the same host.
> But I can't reach it (no route to host) and I have this error:
> 
> ERROR:openflow.of_01:[00-00-00-00-00-02 5] OpenFlow Error:
> [00-00-00-00-00-02 5] Error: header: 
> [00-00-00-00-00-02 5] Error:   version: 1
> [00-00-00-00-00-02 5] Error:   type:    1 (OFPT_ERROR)
> [00-00-00-00-00-02 5] Error:   length:  76
> [00-00-00-00-00-02 5] Error:   xid:     2046
> [00-00-00-00-00-02 5] Error: type: OFPET_BAD_REQUEST (1)
> [00-00-00-00-00-02 5] Error: code: OFPBRC_BUFFER_UNKNOWN (8)
> [00-00-00-00-00-02 5] Error: datalen: 64
> [00-00-00-00-00-02 5] Error: 0000: 01 0e 00 48 00 00 07 fe  00 00 20 40 00 18 d2 87   |...H...... @....|
> [00-00-00-00-00-02 5] Error: 0010: 03 64 03 d1 00 00 00 00  00 06 ff ff 00 00 08 00   |.d..............|
> [00-00-00-00-00-02 5] Error: 0020: 00 06 00 00 00 00 00 00  0a 00 00 65 00 00 13 89   |...........e....|
> [00-00-00-00-00-02 5] Error: 0030: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 80 00   |................|
> 
> Sometimes it happens just for one of the sender, sometimes for both of them.
> Do you know how can I solve it?
> 
> Thank you and Happy Xmas
> 
> -- 
> Silvia Fichera