[119406] in North American Network Operators' Group
Re: Layer 2 vs. Layer 3 to TOR
daemon@ATHENA.MIT.EDU (Eugeniu Patrascu)
Wed Nov 18 09:35:01 2009
In-Reply-To: <f4ad058f0911180604w4682bbc0k21ca15dcebce17ae@mail.gmail.com>
Date: Wed, 18 Nov 2009 16:34:11 +0200
From: Eugeniu Patrascu <eugen@imacandi.net>
To: Kinkie <gkinkie@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Nov 18, 2009 at 4:04 PM, Kinkie <gkinkie@gmail.com> wrote:
> On Thu, Nov 12, 2009 at 9:40 PM, Bulger, Tim <Tim_Bulger@polk.com> wrote:
>> If you use stackable switches, you can stack across cabinets (up to 3 wi=
th 1 meter Cisco 3750 Stackwise), and uplink on the ends. =A0It's a pretty =
solid layout if you plan your port needs properly based on NIC density and =
cabinet size, plus you can cable cleanly to an adjacent cabinet's switch if=
necessary.
>
>
>
> Juniper claims their switches can do clustering using ethernet
> cabling, yet a cluster behaves as a single-system-image
> configuration-wise. Should allow for very flexible cabling and
> operations-wise for TOR switches. I have never tried it however.
>
The Ex4200 can be stacked by the ethernet expansion ports, either 4 x
1G or 2 x 10G.
And yes, it behaves as single switch with multiple line cards.
