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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 16:09:18 -0500
- In-reply-to: <6CDE22DE80A63A4DACF4FE2C916519A53F4E63E3DD@BLV11EXVS01.corp.dm.local>
- References: <6CDE22DE80A63A4DACF4FE2C916519A53F4E63E3DB@BLV11EXVS01.corp.dm.local> <[email protected]> <6CDE22DE80A63A4DACF4FE2C916519A53F4E63E3DD@BLV11EXVS01.corp.dm.local>
Raj Singh wrote:
> We are actually looking at going Layer 3 all the way to the top of rack and make each rack its own /24. This provides us flexibility when doing maintenance (spanning-tree). Also, troubleshooting during outages is much easier by using common tools like ping and trace routes.
I'm confused where STP fits into this. If you're doing /24s to each
switch, why even bring STP into the picture? Do /31s to each TOR switch
and use OSPF or ISIS. I don't know too many people who have not had an
awful experience with STP at some point.