[c-nsp] Transparent LAN over Layer3

[Allan Eising]

We're having some of the same thoughts in my company, and are a bit
concerned over overhead on L2TPv3 and the following MTU limitations.

How do you people deal with this?

-Allan

On Wed, Oct 1, 2008 at 1:38 PM, Paul Stewart <paul at paulstewart.org> wrote:
> Thanks guys... I hadn't head much about l2tpv3 "in the wild" from actual
> users.... good to hear from folks actually using it a lot - that makes it
> easier for me to make some decisions...
>
> Best regards, thanks to everyone for onlist and offlist replies...
>
> Paul
>
>
> -----Original Message-----
> From: John van Oppen [mailto:john at vanoppen.com]
> Sent: October 1, 2008 4:07 AM
> To: Robert Boyle; Paul Stewart; Michael K. Smith; cisco-nsp
> Subject: RE: [c-nsp] Transparent LAN over Layer3
>
> I would second that as well.   We use l2tpv3 all over the place, with
> Ethernet.   We mostly do it with 7200VXRs as endpoints but I have a few
> 12000s running with OC48s as "tunnel server cards" and those work nicely
> as well and it is a quite elegant solution when MPLS is not possible or
> only rather simple transport functionality is required.
>
>
>
> John van Oppen
> Spectrum Networks LLC
> 206.973.8302 (Direct)
> 206.973.8300 (main office)
>
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Robert Boyle
> Sent: Tuesday, September 30, 2008 7:39 PM
> To: Paul Stewart; 'Michael K. Smith'; 'cisco-nsp'
> Subject: Re: [c-nsp] Transparent LAN over Layer3
>
> At 10:20 PM 9/30/2008, Paul Stewart wrote:
>>Yes, we own the end to end network however it's a routed network in
> those
>>segments...
>>router-->router-->router-->switch-->switch-->router-->router-->router--
>>rout
>>er specifically...;)
>>
>>If we could hand them off a few VLAN's we would just do that and not
> even
>>use Q-in-Q unless we really needed to... but basically I'm looking for
>>layer2 transport via layer3 devices...  and there's no option for MPLS
> in
>>this setup...
>
> Take a look at L2TPv3. We use it for all kinds of crazy transport
> here. Taking a T1 from one city and one carrier and delivering it to
> a customer in our datacenter, handing ATM PVCs off from one router to
> another ATM PVC on another router 100 miles away. We haven't used it
> for Ethernet, but that sure seems a lot less complicated than the
> things we are doing. Anything you put in on one side is transparently
> trunked to the other side. It works great and gives you many of the
> benefits of MPLS without the need to have a network which supports
> MPLS end to end. It is especially useful for small POPs and locations
> with older gear.
>
> -Robert
>
>
>
> Tellurian Networks - Global Hosting Solutions Since 1995
> http://www.tellurian.com | 888-TELLURIAN | 973-300-9211
> "Well done is better than well said." - Benjamin Franklin
>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>