Re: OT:WAN Backbone and Internet in DC

Joe B, you sure know how to make someone laugh .

Regards,
 Joe Sanchez

( please excuse the brevity of this email as it was sent via a mobile device. Please excuse misspelled words or sentence structure.)

On Jan 9, 2013, at 1:50 PM, "Joseph L. Brunner" <joe_at_affirmedsystems.com> wrote:

> I can call a rooster a male chicken. I can call a male chicken a rooster.
>
> Don't get too caught up in someone else's nomenclature.
>
> You're post below reads like a newly masturbating teenager who found his father's playboys and can't remember what drawer to put them back into before daddy get's home...
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Routing Freak
> Sent: Wednesday, January 09, 2013 2:38 PM
> To: Cisco certification
> Subject: OT:WAN Backbone and Internet in DC
>
> Hi all
>
> In my customer data centre network, we have primary as well as Disaster Recovery site and we have Inter DC links which is the so-called WAN Backbone. And we have Internet connectivity from my Edge routers on both the Data centers sites to upstream Internet Service Providers I dont understand what is the difference between the WAN Backbone and Internet in terminologies in documentations.
>
> THis is what my understanding is WAN Backbone is nothing but ur Data centre Interconnect technology that u r going inorder to reach other DC site in case any links to upstream Providers got lost or else any other issue making the traffic.
>
> Why do they call as WAN Backbone? Its just a normal DC Interconnect technology where we can use another Service Provider just like a VPN connection to reach another site. I probably feel WAN Backbone used in ISP Core network where they have large mesh of LSPs to each and every Edge devices.
>
> Whereas the original connection from the Edge routers to the upstream ISPs are exclusively for the internet routes and not for any DCI or VPN traffic from one DC to another DC
>
> In this case when designing the DC sites, we need to have two separate service providers . One for the Internet Routes and another for the DC interconnect
>
> On what scenarios does the Inter DC links will be used and in what purpose it is required ?
>
> I see there are lot of solutions for DC Interconnect ranging from VPLS to Layer 3 VPNs over the internet or else plain Layer 3 routing. Which works best and i see the "It depends" answer coming !! :)
>
> Can someone throw light on this more.
>
> --
> Regards
> Routing Freak
> CCIE#35889 (SPv3)
>
>
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Received on Wed Jan 09 2013 - 14:48:08 ART