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Yulot
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Yulot,
User Rank: Moderator
9/29/2014 | 9:16:14 AM
Re: More issues
Very good point, Danjoe. Operators have heavily relied on interface based signalling solutions to try to analyse network quality issues or too high level application monitoring at L7. This is really the majority of mobile and fixed operators.

None of these solutions are in essence real time (because you need to post process all interfaces' results to recreate an end to end analysis, using disjointed KPIs and counters, etc). In addition, more recently network technologies have started disconnecting user plane and control plane to improve latency - not only in SDN, but in the mobile world direct tunneling in 3G has been relying on that for about 5 to 6 years already. So trying to draw parallels between signalling and user plane issues is even more hazardous of an approach. Then user plane is not always analysed and demarcated properly (most solutions look at applications, most of which in essence are out of the operators network...). Other issue is the cost of probing all interfaces, which results in only probing a few. So to cut a long story short, the analytics are close to useless.

However, even some of the biggest names in the industry still do just that due to a mix of legacy habits inherited from the voice world, silo organisation / lack of end-to-end structure (or if it is there, lack of political empowerement of those E2E departments).

No doubt SDN and traffic growth will ask for a very fast and radical change of habits, unless they want to operate blindly.
RK@LCN
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[email protected],
User Rank: Light Beer
9/28/2014 | 9:21:26 AM
This is timely
Dan, this is timely. Management will "make or break" NFV and SDN. You said you will "...focus on the challenges that are inherent in managing Ethernet and IP, whether in a virtualized environment or not." Hope you will also talk a lot about the 'head spinning' complexities introduced by SDN and NFV. 
danjoe
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danjoe,
User Rank: Blogger
9/28/2014 | 7:29:19 AM
Re: More issues
Thanks DHagar and sam masud for the encouraging words. OSS/BSS is a challenge that will need to be addressed as there is a considerable investment already made in solutions that might no longer be appropriate to the task. How do we make the transition from where we are to where we need to be? The answer is understanding the realities from the bottom up, understanding what needs to change to make SDN/NFV work and use this understanding to drive the changes that will be needed at the OSS/BSS level. 
DHagar
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DHagar,
User Rank: Light Sabre
9/26/2014 | 4:49:42 PM
Re: More Issues
sam masud, I fully agree with you.  Dan, this will provide meaningful information on the real issues that distinguish performance and sustainability.  The ability to manage systems effectively and provide the capability for "intelligent" systems is the real focus, in my opinion.
sam masud
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sam masud,
User Rank: Light Sabre
9/26/2014 | 4:17:47 PM
More issues
Dan,

 

I am looking forward to your blogs, and since you're going to be writing here about SDN/NFV managment, wonder if you'll also be talking about OSS/BSS since (to my mind) the management issue has considerable bearing on that. Or am I wrong about that?


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