[57344] in North American Network Operators' Group
RE: Seeking Advice: L2TPv3 vs. Martini Draft MPLS
daemon@ATHENA.MIT.EDU (Mike Bernico)
Fri Apr 4 12:25:16 2003
Date: Fri, 4 Apr 2003 11:24:42 -0600
From: "Mike Bernico" <mbernico@illinois.net>
To: "David Bigge" <david.bigge@giftofsite.com>, <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
Thanks for your advice David. Your point is very well received. =20
One of the design requirements for our VPN solution will be the ability
to allow customers to use non-IP protocols. I don't think RFC2547bis
will work for this. However if we do go the MPLS route then RFC2547bis
will be available as a product as well as Layer 2 VPNs. That's
definitely a benefit. =20
-----Original Message-----
From: David Bigge [mailto:david.bigge@giftofsite.com]=20
Sent: Friday, April 04, 2003 10:56 AM
To: Mike Bernico; nanog@merit.edu
Subject: Re: Seeking Advice: L2TPv3 vs. Martini Draft MPLS
Mike,
An unsupported standard might as well not be a standard. I would lean
towards the most openly supported standard- MPLS. Along with not
letting
one vendor bend you over the barrel, this openess also flushes out any
problems for a more stable long-term network.
You don't talk about 2547bis VPNs. Are you considering that also?
We use a competitor of Cisco's equipment so I am biased.
My 2 cent.
David
----- Original Message -----
From: "Mike Bernico" <mbernico@illinois.net>
To: <nanog@merit.edu>
Sent: Friday, April 04, 2003 10:13 AM
Subject: Seeking Advice: L2TPv3 vs. Martini Draft MPLS
>
> All,
>
> I'm currently comparing these two technologies in an effort to offer a
> Layer 2 VPN service on our backbone. Our network is currently not
MPLS
> enabled. Below is what I perceive as the pros and cons of each
> technology. If anyone has thoughts on or experience with either one
of
> these protocols I'd like to hear your opinion.
>
> Thanks
>
> Mike
>
>
>
> Martini VPN
>
> Pro
> ----
> Supports MPLS TE for each VPN, making it more PVCish
> Enabling MPLS would open up the "MPLS tool box" for other services
like
> L3 VPNs and TE
>
>
> Con
> ---
> Enabling MPLS is a huge change
> Changing the forwarding paradigm in the network exposes us to new and
> interesting bugs and stability issues
>
>
>
> L2TPv3 VPN
>
> Pro
> ---
> Doesn't require MPLS/Much smaller change
>
>
> Con
> ----
> Although standard, only supported by Cisco currently (I think)
> Requires special tunneling card in GSR routers.
>
>
