[c-nsp] Stacking 3750X vs diverse 4948E

[Alexander Lim]

I think Nexus 5500 series support L3. 

Regards,
Alexander Lim

On May 20, 2012, at 12:54 PM, Skeeve Stevens <skeeve+cisconsp at eintellego.net> wrote:

> Feature / Nexus 5010 / 3750X
> 
> VLANs / 507 / 1005
> MAC / 16k / 4k-12k
> L3 / N / Y
> vPC / Y / N
> 
> Nexus 5010 - less VLANs, no Layer 3, vPC
> 3750X - more VLAN, Layer 3, no vPC
> 
> 
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> On Sun, May 20, 2012 at 10:03 AM, scott owens <scottowens12 at gmail.com>wrote:
> 
>> How about Nexus 5010s.
>> 
>> I think they bundle them for less than 2 x 3750X .
>> We have both but the 3750s are used where we needed L2/L3, the 5Ks for just
>> L2 up to VSS or 7Ks.
>> 
>> 
>> you can boot them separately and they do LACP / Etherchannel just fine.
>> 
>> 
>> 
>> 
>>>  2. Stacking 3750X vs diverse 4948E (David Coulson)
>>> Message: 2
>>> Date: Fri, 18 May 2012 14:55:57 -0400
>>> From: David Coulson <david at davidcoulson.net>
>>> To: cisco-nsp at puck.nether.net
>>> Subject: [c-nsp] Stacking 3750X vs diverse 4948E
>>> Message-ID: <4FB69B3D.3060802 at davidcoulson.net>
>>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>> 
>>> In a datacenter environment, we typically deploy 4948 top-of-rack
>>> switches with L2 uplinks to our 6500 core - Systems get connections into
>>> two different switches and rely on OS NIC bonding (mostly Linux) to
>>> support switch failures. Switches running STP and in the last four years
>>> we've had no issues with this design (including failures of systems
>>> connected to diverse switches).
>>> 
>>> A new proposed configuration utilizes stacked 3750X switches, where
>>> servers would be connected to multiple switches within the same stack. I
>>> have next to no experience in the low-end switches that do stacking, but
>>> from a general risk management perspective, it seems like a many eggs
>>> and single basket configuration.
>>> 
>>> Does anyone have any solid experience with 3750X switches, or stacking
>>> in a datacenter in general? I've seen plenty of stacks for
>>> closets/end-users, but I don't see many in a top-of-rack config. Is
>>> Cisco stacking typically 'reliable', in that when a switch fails it will
>>> leave the remainder of the stack functional? What about a software
>>> issue? Does the whole stack crap out and reload, or does the master just
>>> fail and a new one get elected?
>>> 
>>> I realize it's a pretty broad question, but it boils down to - Is a
>>> stacked switch config significantly less reliable/resilient/available
>>> than two TOR switches?
>>> 
>>> David
>>> 
>>> 
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