Layer 2 vs. Layer 3 to TOR

Eugeniu Patrascu eugen at
Wed Nov 18 14:34:11 UTC 2009

On Wed, Nov 18, 2009 at 4:04 PM, Kinkie <gkinkie at> wrote:
> On Thu, Nov 12, 2009 at 9:40 PM, Bulger, Tim <Tim_Bulger at> wrote:
>> If you use stackable switches, you can stack across cabinets (up to 3 with 1 meter Cisco 3750 Stackwise), and uplink on the ends.  It'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.

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