Re: Difference between services provided by Q-in-Q and VPLS.

And yes, I forgot to mention - QinQ is not point-to-point. You may be
mixing it up with AToM, which is point-to-point pseudowire.

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor - IPexpert
On Tue, Oct 9, 2012 at 3:58 PM, Marko Milivojevic <markom_at_ipexpert.com> wrote:
> On Tue, Oct 9, 2012 at 3:37 PM, Torleif Solli <rgi_at_stord.as> wrote:
>> Isn't QinQ point to point and VPLS is point to multipoint ?
>
> Not really, no. Q-in-Q and VPLS are really not directly comparable as
> services, as one is designed to operate in a pure switched environment
> and scale the relatively limited number of VLANs (QinQ), while the
> other is designed to provide end-to-end multipoint L2 connectivity
> over the MPLS packet core.
>
> In many cases, QinQ and VPLS are actually used together, where SPs
> don't support MPLS in the access layer in a design topology referred
> to as "Hierarchical VPLS".
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior CCIE Instructor - IPexpert
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