Re: Why MPLS

First of all, great write up Anthony. I love your frank, yet detailed presentations on INE. Great stuff.

The lone thing I would add to this great discussion is the layer 3 transparency of MPLS. To ability allow for multiple control plans and data plans all the while remaining agnostic to the layer2 transport. That aspect of the technology I believe adds one of it's greatest value not just to providers, but large enterprises as well.

On Sep 22, 2010, at 1:35 PM, Anthony Sequeira <asequeira_at_ine.com> wrote:

> I was asking myself the same questions - after some research, I wrote this:
>
> http://blog.ine.com/2010/02/11/why-do-we-need-mpls/
> ________________________________________
> From: nobody_at_groupstudy.com [nobody_at_groupstudy.com] On Behalf Of Happy Singh [happynetworkingsingh_at_gmail.com]
> Sent: Wednesday, September 22, 2010 1:08 PM
> To: Cisco certification; Cisco certification
> Subject: Why MPLS
>
> Hi All
>
> I just started MPLS studies . Got an idea of how labels are assigned , how
> labels are distributed etc .
> But my question is :
>
> Without MPLS ; we perform lookup in IP routing table ...... With MPLS ; we
> assign labels and now lookup is done in label table and necessary action is
> taken ( pop / swap etc) .
>
> So how does it becomes faster ? How does it become better .
>
> Yeah ; I understood the fact that core is now BGP free ..
>
> But instead of doing IP lookup ; we are doing label lookup now . So how and
> where are we saving ?
>
> Please clearify
>
> Thnx
> Happy !
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Wed Sep 22 2010 - 14:23:50 ART