[c-nsp] Nexus 5596 architecture

-Hammer- bhmccie at gmail.com
Fri Jan 27 16:50:48 EST 2012


Jiri,
     The numbers everyone is referencing below are correct with the 
caveat (already referenced) regarding RAW traffic VS. Real traffic. We 
are in the early stages of a N7k/N5k/N2k deployment ourselves and are 
learning more and more every day about the various subtleties in the 
various platforms. Ping the group if you have more questions. Lot's of 
great resources here.

-Hammer-

"I was a normal American nerd"
-Jack Herer



On 1/27/2012 3:19 PM, John Gill wrote:
> Hi Jiri,
> The bandwidth to the fabric is dedicated and the expansion modules 
> have their own forwarding engines on them, so they are no different 
> than the base ports except that they can be swapped out.
>
> What kind of traffic are you interested in running?  Unicast, 
> multicast, QoS requirements? Do you have low-latency requirements?  
> 10G or 1G?  Do you know how much buffering you would need with your 
> traffic flows?  Or is this mostly fact finding for now?  Let me know 
> if you have any specific rumors as well.
>
> Regards,
> John Gill
> cisco
>
> On 1/26/12 8:30 PM, Jiri Prochazka wrote:
>> Hi,
>>
>> we are considering investment in a few Nexus 5596 switches. All Cisco
>> documents say it has 96 non-blocking 10G ports (for L2). Is it _really_
>> true? Can the switch reach throughput of 960 Gbps regardless the traffic
>> distribution? Is't there some hidden limitaion, which is not presented
>> by Cisco? :-) I've heard some rumors about this, but nothing particular.
>>
>> First thig which comes to my mind is a doubt, if all three expansion
>> modules really do have 160 Gbps connection to the fabric..
>>
>>
>>
>>
>> Thank you for comments,
>>
>>
>>
>> Jiri
>>
>>
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