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clrmoney
clrmoney
3/23/2017 10:49:04 AM
User Rank
Platinum
Centurylink CORD
They say CORD offer Centurylink simplicity and reliability and I agree. I think whatever makes it easier for them and their customers etc.

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dcawrey
dcawrey
3/23/2017 1:21:30 PM
User Rank
Platinum
Re: Centurylink CORD
Are the routers and switches really from Intel? That would be a surpise to me. I thought they focused on other things - servers make sense, but Intel-powered networking gear? That seems a little intense if you ask me. 

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Mike Robuck
Mike Robuck
3/23/2017 4:00:38 PM
User Rank
Author
Re: Centurylink CORD
Daniel, I asked Adam and here's what he said:

"For the vBNG, the hardware is IA server so Intel based, the software is ours.  The other part of CORD is TOR/switch/routers, the hardware is Broadcom based, the software is ours."

Sorry for the confusion I created. I took most of that out of my story. 

 

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JohnBarnes
JohnBarnes
3/25/2017 7:13:16 PM
User Rank
Platinum
I think the big story is the smaller failure domains
Failures in networked services are expensive, sometimes contractually but always in terms of customer retention. The fewer end users who are aware of outages and errors, the less internal pressure to shop elsewhere at the client firms. So what I'm seeing here, I think, is probably more important as a customer retention advantage than as a major technical advance. CORD gave them a basis to build a small-failure-domain network, and a small-failure-domain network, over time, will retain way more customers.

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elizabethv
elizabethv
3/25/2017 8:20:02 PM
User Rank
Platinum
Re: I think the big story is the smaller failure domains
@JohnBarnes - That was exactly what I was thinking. All of this would go along way to help with customer retention, and by extension, will likely even bring more customers in. From my knowledge, there has been concern about the reliability of CenturyLink and by working to create more reliable networks, even if just for businesses, they will enhance their reputation and namebrand, and hopefully end up with a stronger brand. 

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JohnBarnes
JohnBarnes
3/25/2017 8:43:03 PM
User Rank
Platinum
Re: I think the big story is the smaller failure domains
ElizabethV,

Greater reliability will help but smaller failure domains will help more (and theoretically they're independent).

Suppose your failure domain is 1000 users, you have a total of 1 million users on 1000 sites, and you have 10 failures a year. Your reliability is about 99% and you have about 10,000 PO'd users at the end of the year. (Because basically every failure takes a whole site down and PO's all the users there).

Suppose your failure domain is 50 users on the same 1000 sites and 1 million user population, and you have 50 failures, five times as many, in a year. Your reliability is actually worse -- 98% -- but you've only PO'd 2500 users, one quarter as many. 

Moreover, assuming no overlaps, in the big-infrequent-failure universe, you had 10 sites where users unanimously hated your guts. In the small-failure-domain, frequent failure universe, you have 50 sites where 5% of users hate your guts (and 95% of their peers think they're overreacting).

High reliability is great for customer retention -- but small failure domain is even better!

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mpouraryan
mpouraryan
3/26/2017 11:15:11 AM
User Rank
Platinum
Re: Centurylink CORD
How they're at the forefront of transformation is fun to read about--and how they continue to embrace existing technologies and have some vibrant value add is also ever so vibrant.  

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dcawrey
dcawrey
3/26/2017 4:14:21 PM
User Rank
Platinum
Re: Centurylink CORD
@Mike Robuck Thank you for the clarification sir!

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elizabethv
elizabethv
3/27/2017 9:46:44 PM
User Rank
Platinum
Re: I think the big story is the smaller failure domains
@JohnBarnes - that is a really great point. I think they both go hand-in-hand and with CenturyLink addressing the situation they will only see a positive reaction from customers and potential customers. Getting businesses to see their service as a positive one will help get individuals from those businesses to try it out at home, which will increase their customer base and perceived brand reputation. 

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JohnBarnes
JohnBarnes
3/27/2017 10:51:55 PM
User Rank
Platinum
Re: I think the big story is the smaller failure domains
ElizabethV, Yep, that is yet another amplifier effect, the feedback between household and business experience. They really do seem to have a virtuous circle going here.

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