Sounds legit, I know this is a pretty old (outdated) article, but highlights the consequences of OF on software and OF on hardware
http://searchsdn.techtarget.com/news/2240150716/Brocade-Some-OpenFlow-switches-cant-operate-at-line-rate-speeds May be someone from the core group throw some light on how the existing legacy devices can be made compatible with Openflow? does it really need a firmware upgrade or a software upgrade is sufficient? Cheers! Durga On Wed, Mar 26, 2014 at 1:18 PM, Naman Muley <naman.g.mu...@gmail.com>wrote: > I'd reckon that is not completely true. > > A lot of switches, just to reach to their customers quickly, implement > openflow in software. That means, openflow actions and everything are > implemented in software and no specialized ASICs are added to implement the > functionality. This of course obstructs line rate and the performance is > observably slower than the ones that implement openflow in hardware. > > An example is, you have a flow entry that rewrites IP addresses for every > packet that matches the criteria. This, if done with hardware will give you > line rate performance. But if done in software, will make it noticeably > slower. > > Please correct if I'm wrong. > > Naman > On Mar 25, 2014 10:10 PM, "durga" <c.vijaya.du...@gmail.com> wrote: > >> in continuation of the topic, >> I had remotely read, that enabling OpenFlow is as much as as doing a >> firmware upgrade, can someone confirm it? or the only way to have OpenFlow >> environment is by replacing legacy devices with brand-new openflow enabled >> devices? >> >> Cheers! >> Durga >> >> >> >> On Wed, Mar 26, 2014 at 12:18 AM, Carlos Ferreira >> <carlosmf...@gmail.com>wrote: >> >>> Then if it's not Openflow capable, then you cannot use Openflow with it. >>> >>> >>> On 24 March 2014 19:31, Andrew Niteesh <andrewec...@gmail.com> wrote: >>> >>>> No the equipment is not an OpenFlow capable switch. >>>> >>>> >>>> On Mon, Mar 24, 2014 at 12:46 PM, Carlos Ferreira < >>>> carlosmf...@gmail.com> wrote: >>>> >>>>> What do you mean Enable? Please clarify. Is the equipment, an OpenFlow >>>>> capable Switch? >>>>> >>>>> >>>>> On 17 March 2014 19:31, Andrew Niteesh <andrewec...@gmail.com> wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> I have a small clarification, could you please tell me how to enable >>>>>> openflow in Ethernet Switch? >>>>>> >>>>>> Regards, >>>>>> Andrew Niteesh >>>>>> 8324179269 >>>>>> >>>>>> _______________________________________________ >>>>>> openflow-discuss mailing list >>>>>> openflow-discuss@lists.stanford.edu >>>>>> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> Carlos Miguel Ferreira >>>>> Researcher at Telecommunications Institute >>>>> Aveiro - Portugal >>>>> Work E-mail - c...@av.it.pt >>>>> Skype & GTalk -> carlosmf...@gmail.com >>>>> LinkedIn -> http://www.linkedin.com/in/carlosmferreira >>>>> >>>> >>>> >>> >>> >>> -- >>> >>> Carlos Miguel Ferreira >>> Researcher at Telecommunications Institute >>> Aveiro - Portugal >>> Work E-mail - c...@av.it.pt >>> Skype & GTalk -> carlosmf...@gmail.com >>> LinkedIn -> http://www.linkedin.com/in/carlosmferreira >>> >>> _______________________________________________ >>> openflow-discuss mailing list >>> openflow-discuss@lists.stanford.edu >>> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >>> >>> >> >> _______________________________________________ >> openflow-discuss mailing list >> openflow-discuss@lists.stanford.edu >> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >> >>
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