The MPLS-OPS Archive

[Robert Raszuk <raszuk@cisco.com>]

Hi Karl,

Thx for your add but could you reference any draft specifically talking
about interconnecting layer 2 VPNs with layer 3 VPNs for a service
provider ? I find such a possibility very interesting ... :).

On the other hand I just want to make sure it is clear what are we
talking about in this thread. Is this about variuos ways customer can
access VPNs ie via leased lines, IPSec, FR/ATM, ethernet, GRE or other
IP tunnel .... that is all very simple to do and in fact mutliple
vendors do it today (even Cisco world :).

Or is this about creating parallel VPNs for the same customer one Layer
2 & the other Layer 3 and interconnecting them in the SP space. I
thought that was the qestion. And if I got it right I still think this
is quite impossible.

Rgs,
R.

> Karl Garcia wrote:
> 
> Hi,
> 
> Well, Robert is right that this is not possible in the Cisco world.
> :-)
> 
> However, not naming any names, there is equipment available today
> (actually shipping !)
> that can interconnect BGP/MPLS VPNs (layer 3), IPSec VPNs, FR and ATM
> VPNs.  In Q1 of 2002, this equipment will also support layer 2 MPLS
> VPNs.
> 
> And it is built for the SP; that means it is carrier-class and
> scalable.
> 
> Hope this helps,
> _______
> Karl
> 
> Karl Garcia
> Sr. Mrkt. Engr.
> CoSine Communications, Inc.
> 
> -----Original Message-----
> From: Robert Raszuk [mailto:raszuk@cisco.com]
> Sent: Tuesday, December 18, 2001 4:10 AM
> To: Chrysostomos Tziouvaras
> Cc: mpls-ops@mplsrc.com
> Subject: Re: MPLS VPNs interconnection
> 
> I don't think this is possible on the SP side.
> 
> Of course all of the below provide a concept of hub & spoke so at the
> Hub side of your customer you could interconnect the VPNs as you like.
> 
> R.
> 
> > Chrysostomos Tziouvaras wrote:
> >
> > Dear all,
> > can anyone provide me pointers to documentation about the
> interconnection
> > of VPNs that employ different technologies, such as layer 2 MPLS
> VPNs,
> > layer 3 MPLS VPNs and traditional VPNs (eg FR or ATM VPNs).
> >
> > Regards
> > Chrysostomos
> >
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