Hi McCauley, First thanks for your concern.
But this may not be byte order problem. Because other variables are not shifted by same patterns as the state variable. I found that state variable is left shifted by 24 bit and port number is left shifted by 8 bit. For example if port number is 1 then nox will show it as 0x100 and if port number is 2 then nox will show it as 0x200 and so on. I have printed these value at c++ code of nox. When there is change in port status then handle_port_status function is called from file nox/src/lib/openflow-event.cc. ofp_port_status *ops is present there as a function parameter. I have printed values of variables present in this structure by using printf function available in stdio.h. Regards, Sachin ________________________________ From: Murphy McCauley <jam...@nau.edu> To: sachin sharma <sharon_sac...@yahoo.co.in> Cc: nox-dev@noxrepo.org Sent: Wed, 24 November, 2010 2:36:12 AM Subject: Re: [nox-dev] State variable of ofp_phy_port on port status change This actually seems like it might be a byte order problem, though it's sort of hard to believe it would have slipped by until now, so I'm sort of surprised. Are you seeing this in C++ or in Python? On x86? Can you send some sample code which shows the issue? -- Murphy On Nov 23, 2010, at 1:56 AM, sachin sharma wrote: > Hi All, > > I am using openvswitch-1.1.0pre2.tar.gz and nox version 0.6. I found that >when there is change in port status then openvswitch sends port status change >to nox. I have printed the state and config variable of ofp_phy_port. and >found >that when link is down then openvswitch sends "state =0x1" and when link is up >then it sends "state=0x0". I have read the openflow specification and found >that these values are correct according to link change. > > But when I printed these value at nox, I found different values of state >variable. When link is down then nox receives an event with "state=0x1000000" >and when link is up, nox receives "state=0x0". I suppose that someone is doing >left shift of this state variable. Am I right? If this is so, then why this >is >done? > > Thank You for reply, > > Regards, > Sachin > > _______________________________________________ > nox-dev mailing list > nox-dev@noxrepo.org > http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
_______________________________________________ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
