[c-nsp] GRE tunnel to do span vlan across two datacenters?

[Derick Winkworth]

I thought about that, but then decided not to recommend it.  Its definitely the simplest, but its also not really the best design in my opinion.  
If only Cisco had a smaller unit that could do MPLS VPNs *and* VPLS.  That would seem more strategic in nature than patching it now with a vlan or pseudowire.  
Isn't the ASR supposed to be getting some VPLS support here soon?

Derick Winkworth

CCIE #15672 (RS, SP), JNCIE-M #721

http://blinking-network.blogspot.com

--- On Wed, 7/6/11, Gert Doering <gert at greenie.muc.de> wrote:

From: Gert Doering <gert at greenie.muc.de>
Subject: Re: [c-nsp] GRE tunnel to do span vlan across two datacenters?
To: "Jason Gurtz" <jasongurtz at npumail.com>
Cc: cisco-nsp at puck.nether.net
Date: Wednesday, July 6, 2011, 12:23 PM

Hi,

On Wed, Jul 06, 2011 at 12:08:53PM -0400, Jason Gurtz wrote:
> A firm has proposed creating a GRE tunnel between two datacenters (using a
> 3750X stack at each) to create the spanned vlans needed for VMWare
> failover application.

I'd double-check that the 3750X can do that.  The 3750-with-no-X can *not*.

> There is dark fiber
> available, what about VPLS w/ LDP or L2TP solution?

If there's fiber available, why not "just trunk the VLANs across"?

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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