L2 tunnelling techniques (was: Re: CCIE-SP)

Hi,

On Mon, Nov 23, 2009 at 3:01 PM, Thameem Maranveetil Parambath
<security.goodie_at_gmail.com> wrote:
>
> Do you know any L2 techniques for spanning L2 network across WAN through
> existing IP L3 Core.
>
> I know the following are possible , but its not that scalable or require
> much change in core.
> 1. EoMPLS .. requires MPLS in core
> 2. VPLS ... requires MPLS
> 3. L2TP ... requires extra routers, ex: 2800 per site..
>
> Any other ways?
>
> Warm Regards,
> Thameem

Do you have a specific requirement or is this just 'research'? You say
'L2' but you seem to refer only to transporting Ethernet. It would
help if you could provide more details about your scenario. L2TPv3
doesn't necessarily require additional hardware, depending on your
existing deployment.

Anyway, with AToM, VPLS and L2TPv3, I think you have L2 transport
covered. You could hack something together with bridging across a GRE
tunnel too. Try it! It's not pretty.

cheers,
Dale

Blogs and organic groups at http://www.ccie.net
Received on Mon Nov 23 2009 - 18:20:13 ART