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Re: FW: MPLS 'Could Save Billions' Says Study

  • From: Mathew Lodge <mathew@cplane.com>
  • Date: Mon, 25 Mar 2002 11:51:11 -0800
  • Resent-Date: Mon, 25 Mar 2002 17:02:31 -0500
  • To: "Dave O'Meara" <dave.omeara@eircom.net>, <mpls-ops@mplsrc.com>
  • X-Sender: lodge@127.0.0.1

At 05:53 PM 3/25/2002 +0000, Dave O'Meara wrote:
>On Monday 25 March 2002 16:27, Irwin Lazar wrote:
> >
> > In order for prioritization to work, carriers need to deploy MPLS rather
> > than Internet Protocol (IP) services, according to Telechoice.
>
>Hello?????
>
>Can anyone here explain how MPLS QoS techniques differ in any way to IP QoS
>techniques?

While the QoS models are essentially the same (Diffserv, basically), the 
big difference is that in MPLS you can engineer the traffic paths for the 
aggregate traffic classes identified by diffserv code points. This means 
you can control bandwidth reservation and create a predictable network with 
real bandwidth guarantees and pre-engineered resiliency that maintains 
those guarantees in the event of failure. In IP networks, there is no 
control over the path and hence no predictability and no bandwidth guarantees.

Cheers,

Mathew





>Dave
>
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| Mathew Lodge                 | mathew@cplane.com     |
| Director, Product Management | Ph: +1 408 789 4068   |
| CPLANE, Inc.                 | http://www.cplane.com | 

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