Layer 2 vs. Layer 3 to TOR

Seth Mattinen sethm at rollernet.us
Thu Nov 12 14:19:36 CST 2009


Steve Feldman wrote:
> 
> On Nov 12, 2009, at 2:48 PM, Raj Singh wrote:
> 
>> Guys,
>>
>> I am wondering how many of you are doing layer 3 to top of rack
>> switches and what the pros and cons are. Also, if you are doing layer
>> 3 to top of  rack do you guys have any links to published white papers
>> on it?
> 
> Dani Roisman gave an excellent talk on this subject at NANOG 46 in
> Philadelpha:
> 
>  
> http://www.nanog.org/meetings/nanog46/abstracts.php?pt=MTQwOCZuYW5vZzQ2&nm=nanog46
> 


I'd always wondered how you make a subnet available across racks with L3
rack switching. It seems that you don't.

~Seth




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