Hi Fujita:
Thank you for your reply.
Based on your suggestion, I tried to set the miss_send_len to some non-zero
value.
Here is the code I wrote to fulfill the task:
@handler.set_ev_cls(dpset.EventDP, dpset.DPSET_EV_DISPATCHER)
def switch_connection_handler(self, event):
datapath = event.dp
dpid = datapath.id
*datapath.send_msg(datapath.ofproto_parser.OFPSetConfig(*
* datapath,*
* datapath.ofproto.OFPC_FRAG_NORMAL,*
* 256))*
*
*
*
*
datapath.send_msg(datapath.ofproto_parser.OFPGetConfigRequest(datap\
ath))
On Sat, Sep 28, 2013 at 6:14 PM, FUJITA Tomonori <
[email protected]> wrote:
> On Sat, 28 Sep 2013 16:47:52 -0400
> Chen Chen <[email protected]> wrote:
>
> > Thank you for your patch. Now the error of "unpack_from" is gone.
> > However, there is still something wrong there: the length of msg.data
> after
> > parsing is always 0.
> > Here is part of our code:
>
> Because you configure the switch not to send any data in a packetin
> message. That's why you hit the previous Ryu bug.
>
> Check miss_send_len config:
>
> fujita@ubuntu:~$ sudo ovs-ofctl show br0
> OFPT_FEATURES_REPLY (OF1.2) (xid=0x2): dpid:0000060387abae49
> n_tables:255, n_buffers:256
> capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS
> actions: OUTPUT COPY_TTL_OUT COPY_TTL_IN SET_MPLS_TTL DEC_MPLS_TTL
> PUSH_VLAN POP_VLAN PUSH_MPLS POP_MPLS SET_QUEUE GROUP SET_NW_TTL
> DEC_NW_TTL SET_FIELD
> LOCAL(br0): addr:06:03:87:ab:ae:49
> config: PORT_DOWN
> state: LINK_DOWN
> speed: 100000 Mbps now, 100000 Mbps max
> OFPT_GET_CONFIG_REPLY (OF1.2) (xid=0x4): frags=normal miss_send_len=0
>
>
--
Thanks,
Chen
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