1 2 Previous Next 18 Replies Latest reply: Dec 28, 2011 12:36 AM by rmhango@acsd.co.uk Go to original post RSS
      • 15. Re: Cisco Hierarchical Model for Datacenters, outdated?

        @rmhango - You and these cool links Thanks for sharing.


        I very admittedly was mostly a vouyer around the time when CNE's were falling out of fashion. I'm 28, so I apologize because when I say "not for a long while", I'm still thinking in terms of "5 or more years from now", not 20+, lol. Nonetheless, I think I still may be being misunderstood:


        I'm definitely for advancements in our profession, such as SDN/Openflow, should it take hold. But even the presenters in some of the videos you submit indicate this is will be as much of an evolution as it is a revolution. Even if we were to integrate Openflow into our networks tomorrow (if Cisco et al supported), at best it would offer a network operator a simplified GUI abstraction of networking protocols existing below. OSPF and STP don't just disappear off the bat, we simply exploit the elegance and computative capabilities of modern software to do more of the heavy lifting. Even the speakers in the presentations concede that as with the modern software community, it will be some time before SDN will really mature and we can expect to take advantage of some of it's greater possibilities. But I would humbly submit that I do expect to have renewed my current certs at least once or twice more (and gain a few more) before I need to consider this coming down the pike in my company. At best, I think it's great that we all try to stay ahead of the curve and learn what we can about it in the meanwhile. But the net result is I feel that it's reasonable for most of us not to be concerned about this having any negative impact on our livelihood or lifestyle as a networking engineers, particularly any time real soon. Is that too presumptuous?


        @Scott - ditto

        • 16. Re: Cisco Hierarchical Model for Datacenters, outdated?

          Cheers, my decision not to paraphrase appears to have been the right one, though would say you highlight this complexity obsession well in your post.


          On the whole I thought it was a pretty damning indictment, however it did provide some clarity, most fundamentally that SDN is not an OpenFlow dependency, but part of a much broader trend towards Openness.


          This correlates with my observation, whereby a networking vendor has released an SDK for its OS allowing programmability at the network device layer, incidentally it can also be used to write new apps on top of OpenFlow, so by all accounts SDN is already here. The irony being that not one of the founding board members of the ONF is a traditional networking vendor, coincidental or purpose by design?


          Its obviously far too early to determine any impact or what the long-term impact may be, my guess is a mixture of both, but I’d be willing to bet my dog that five years from now companies will no longer be happy paying a premium for unnecessary complexity and that STP will have been totally eradicated from the network.

          • 17. Re: Cisco Hierarchical Model for Datacenters, outdated?

            rmhango wrote:


            "...it did provide some clarity, most fundamentally that SDN is not an OpenFlow dependency, but part of a much broader trend towards Openness."


            Yup! I totally agree with that statement and quite honestly I'm very on board with that. I honeslty rather loathe the idea of investing myself so heavily in one vendor's technology for so many years, as opposed to tying myself to vendor neutral technologies.


            But I have to say that a "damning indictment", IMO, is more a matter of opinion and perspective. Damning for Cisco? Sure, if they choose to believe that their too big to fail. Damning for us as networking professionals? Sure, if we choose to believe that our current skillset alone will carry us to infinity and beyond.


            I guess what I feel would be sad to see is if current networking professionals get all rattled and see this as the end of an era where their highly valued skills willl fade into obsolecense. The truth is that is the nature of things, so that is inevitable.


            However, I think if we choose to approach it as an opportunity to gain a foothold in an emerging new era and if we choose to change our attitudes about how we might still benefit from it, then it won't appear as scary. So in short, it only has to be daming if we as individuals choose it to be.


            Last, this will open the door for vendor neutral organizations to begin devising high-value certification programs based on open-standards technology. To me that is the greatest potential and greatest benefit to all networkers out of this revolution.

            • 18. Re: Cisco Hierarchical Model for Datacenters, outdated?

              Damning with respect that the networking industry appears to have been somewhat closed and self-serving, hence the creation of the ONF.


              Its the industry as a whole, not one particular vendor or another and certainly doesn't bring into question those that work on the equipment vendors produce, as they can only work within the given confines.


              I'd simply view it as a long overdue liberalisation, which brings with it greater opportunities for those with more creative tendencies.

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