[156237] in North American Network Operators' Group
Re: Layer2 over Layer3
daemon@ATHENA.MIT.EDU (David Swafford)
Wed Sep 12 22:47:29 2012
In-Reply-To: <6E5736BD68F770449C74FBAD975F807C8FE98A09@NYDC-EXCH01.vinci-consulting-corp.local>
Date: Wed, 12 Sep 2012 19:46:28 -0700
From: David Swafford <david@davidswafford.com>
To: Paul Vinciguerra <pvinci@vinciconsulting.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hey Philip,
Any Transport over MPLS will do this too. Here's a link to an example
setup of two sites where just L3 connectivity exists between them:
https://w.ntwk.cc/working-on-atompls/. In that setup, I have just
IPSEC VPN connecting the two locations, but have an 802.1q trunk
extended between both. In the example configs, Fa0/1 on both ends is
a transparent L2 connection. The boxes used here were 3725s on 12.4T.
David.
On Wed, Sep 12, 2012 at 3:37 PM, Paul Vinciguerra
<pvinci@vinciconsulting.com> wrote:
> ASR supports OTV if you can do multicast over L3. Although, you may not =
need L2 extensions in the end.
>
> -----Original Message-----
> From: Philip Lavine [mailto:source_route@yahoo.com]
> Sent: Wednesday, September 12, 2012 6:23 PM
> To: NANOG list
> Subject: Layer2 over Layer3
>
> To all,
>
> I am trying to extend a layer2 connection over Layer 3 so I can have redu=
ndant Layer connectivity between my HQ and colo site. The reason I need thi=
s is so I can give the "appeareance" that there is one gateway and that bot=
h data centers can share the same Layer3 subnet (which I am announcing via =
BGP to 2 different vendors).
>
> I have 2 ASR's. Will EoMPLS work or is there another option?
>
> Philip
>
