[c-nsp] Nexus 5k dual sup design

[quinn snyder]

scale is important, but it depends on your server environment. 
mostly legacy kit -- dual-home the n2k. 
servers with teamed nic -- single home the n2k and team on the server. 

it is possible as of 5.1(3)n2(1) or so to run 'enhanced vpc' (basically vpc on either side of the n2k) -- but i feel its overkill, unless you need a transitory state for single- to multi-homed compute. you pay for it on scale, though. 

q. 

-= sent via iphone. please excuse spelling, grammar, and brevity =-

On May 25, 2013, at 9:07, manderson <chiefwfb at gmail.com> wrote:

> I thought this was a limitation on the 7k, but it makes sense that it would
> apply to the 5k as well.  Good argument, thanks!
> 
> 
> On Thu, May 23, 2013 at 2:51 PM, LavoJM <lavojm at secureobscure.com> wrote:
> 
>> There is a major scalability consequence of dual-homing a 2k to multiple
>> 5k's with VPC's.
>> You can use basically half as many 2k's hanging off each 5k.
>> 
>> 3
>> 
>> 
>> -----Original Message-----
>> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
>> manderson
>> Sent: Thursday, May 23, 2013 4:33 PM
>> To: Mike Hale
>> Cc: cisco-nsp NSP
>> Subject: Re: [c-nsp] Nexus 5k dual sup design
>> 
>> S
>> ​orry, dual sup meaning each 2k is dual homed to each 5k.​
>> 
>> 
>> On Thu, May 23, 2013 at 9:36 AM, Mike Hale <eyeronic.design at gmail.com
>>> wrote:
>> 
>>> Can you clarify by what you mean by dual-sup?
>>> 
>>> The 5k is single sup only isn't it?
>>> 
>>> On Thu, May 23, 2013 at 8:44 AM, manderson <chiefwfb at gmail.com> wrote:
>>>> Hello, we currently use a single sup design in one of our DC's and
>>>> we're playing w/a dual sup design for single homed servers in our
>> other DC.
>>>> Cisco A/S, our SE, and myself are not particularly fond of the dual
>>>> sup design.  However, the lead engineer appears to be set on going
>>>> this
>>> route.
>>>> 
>>>> Other than having two different architectures at two different DC's,
>>>> and designing a network to support single homed servers, I'm looking
>>>> for additional pros/cons as points of discussion.
>>>> 
>>>> TIA,
>>>> ChiefWFB
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>>> 
>>> 
>>> --
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