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

[Silvia Fichera]

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
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