Hi Niky, Thank you for your reply.
I verified that is a problem of sending two instruction to the switch with the same buffer_id. and after that the buffer_id is changed to 'None' that's why I have this error messages. In my Nox application I put in the parameters of "install_datapath_flow" function the same buffer_id received from the switchs. But I don't know if this problem is related to Openflow switches or the Nox application. and can I resolve this problem. Best regards Marwen 2011/5/1 Niky Riga <[email protected]> > Hi Marwen, > According to the OpenFlow 1.0.0 specification doc > (http://www.openflow.org/documents/openflow-spec-v1.0.0.pdf page 39) > > type=1 error is a bad request error (OFPET_BAD_REQUEST) and > codes 7 and 8 mean buffer empty and buffer unknown > (OFPBRC_BUFFER_EMPTY, /* Specified buffer has already been used. */ > OFPBRC_BUFFER_UNKNOWN /* Specified buffer does not exist. */) > > Make sure that you only send one instruction to the switch for each > bufferid, you > can specify multiple actions in the same instruction. > > Hope this helps, > Niky > > marwen marwen wrote: > >> Hi all, >> >> I'm using OpenFlow 1.0 but I have this ERROR >> >> openflow-event|ERR: received Openflow error packet from dpid=00000000000d: >> type=1, code=7 >> >> and sometimes I have this ERROR >> >> openflow-event|ERR: received Openflow error packet from dpid=00000000000a: >> type=1, code=8 >> >> Please can you help me to resolve this problem >> >> Thank you >> Best regards >> Marwen >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> openflow-discuss mailing list >> [email protected] >> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >> >> > >
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