Re: Why MPLS

Also consider the fact that once you're using MPLS, you can now route
based on source. I'm sure in you're readings you've found that you are
no longer have to route based on destination when using MPLS... that
means you can better utilize links even if they are farther way (ie
hop count) but are carrying less traffic.

On Wed, 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 !
>
>
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Received on Wed Sep 22 2010 - 14:02:27 ART