Re: Carrier supporting carrier: Why not L2VPN?

Every time you involve multiple carriers it becomes an undertaking :-)

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor - IPexpert
On Sat, Dec 29, 2012 at 7:41 PM, John Neiberger <jneiberger_at_gmail.com> wrote:
> Thanks, Marko. I was doing a little bit of reading on it and it does sound
> like doing it at L3 can scale really well, but it just seems burdensome from
> an administration and political point of view.
>
>
> On Sat, Dec 29, 2012 at 8:31 PM, Marko Milivojevic <markom_at_ipexpert.com>
> wrote:
>>
>> CSC is relatively complex (not that much) initially, but scales
>> incredibly well to large number of VPNs it can carry. For multipoint
>> L2VPNs (VPLS),
>> provisioning is rather intense for every VPN.
>>
>> --
>> Marko Milivojevic - CCIE #18427 (SP R&S)
>> Senior CCIE Instructor - IPexpert
>>
>> On Sat, Dec 29, 2012 at 5:59 PM, John Neiberger <jneiberger_at_gmail.com>
>> wrote:
>> > I'm watching some videos for the SP track and I just started one on CSC
>> > using L3VPN. It seems awfully complicated. I haven't even really gotten
>> > into the configuration of it yet, so maybe I'll be able to answer my own
>> > question shortly, but why not just use L2VPN for this? It seems like you
>> > could accomplish basically the same thing with MPLS pseudowires or
>> > something like that. Or maybe even VPLS or whatever. Not sure about that
>> > since I haven't done VPLS yet.  :-)
>> >
>> > So, what's the deal? What advantage does CSC via L3VPN bring that would
>> > make it worth all the configuration hassle?
>> >
>> > Heck, why not just run MPLS over GRE?
>> >
>> > I'll keep watching the video and reading about it. There is probably
>> > some
>> > huge advantage that I am completely missing. I'm a noob to some of this,
>> > so
>> > go easy on me.  :)
>> >
>> > John
>> >
>> >
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