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Layer 2 vs. Layer 3 to TOR

Subject: Layer 2 vs. Layer 3 to TOR
From: david at davidcoulson.net (David Coulson)
Date: Thu, 12 Nov 2009 16:07:35 -0500
In-reply-to: <[email protected]>
References: <6CDE22DE80A63A4DACF4FE2C916519A53F4E63E3DB@BLV11EXVS01.corp.dm.local> <[email protected]> <[email protected]>

Seth Mattinen wrote:
> I'd always wondered how you make a subnet available across racks with L3
> rack switching. It seems that you don't.
You could route /32s within your L3 environment, or maybe even leverage 
something like VPLS - Not sure of any TOR-level switches that MPLS 
pseudowire a port into a VPLS cloud though.

Kinda makes L3 and spanning tree sound like a great option, doesn't it?

Follow-Ups:
- Layer 2 vs. Layer 3 to TOR
  - From: jof at thejof.com (Jonathan Lassoff)
- Layer 2 vs. Layer 3 to TOR
  - From: matthew at walster.org (Matthew Walster)

References:
- Layer 2 vs. Layer 3 to TOR
  - From: raj.singh at demandmedia.com (Raj Singh)
- Layer 2 vs. Layer 3 to TOR
  - From: feldman at twincreeks.net (Steve Feldman)
- Layer 2 vs. Layer 3 to TOR
  - From: sethm at rollernet.us (Seth Mattinen)

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