Nexus emulation? Anyone?

-Hammer- bhmccie at gmail.com
Tue Dec 20 12:40:20 CST 2011


OK. Thanks for the clarification.

I understand that resources would be required to support such an effort. 
I was more or less implying that if it's done Internally it probably 
won't be long before someone comes up with a way to do it (Dynamips part 
deux) for the public. Not supported by Cisco.

I don't see how it can hurt Cisco to have people wanting to run their 
stuff for learning/training/validation purposes in a virtual 
environment. But that is a whole different thread.

-Hammer-

"I was a normal American nerd"
-Jack Herer



On 12/20/2011 12:31 PM, Tim Stevenson wrote:
> At 10:18 AM 12/20/2011, -Hammer- gushed:
>
>> Doesn't "Titanium" achieve this for you? I know. It's Internal. But it
>> simulates the 7k. Or am I getting it backwards?
>
> Titanium is basically the NXOS control plane, sans data plane. It's 
> the "platform independent" part of the OS.
>
>
>> My point is that if Cisco already simulates it Internally it's only a
>> matter of time before someone ports something....
>
> Not saying whether it's right or wrong, but maintaining, releasing, & 
> supporting it would require resources, which as you can imagine get 
> prioritized onto other things.
>
> Tim
>
>
>> -Hammer-
>>
>> "I was a normal American nerd"
>> -Jack Herer
>>
>>
>>
>> On 12/20/2011 12:19 PM, David Sinn wrote:
>> > I don't think anyone is asking for a full simulation of the 
>> platform in software, that is how the actual ASIC's operate.  That is 
>> probably best for an entirely different conversation.
>> >
>> > But there is huge need to simulate the control-plane functionally 
>> with a basic forwarding ability (not performant, but pass packets 
>> correctly such that you can verify the topology).  This is something 
>> Dyanmips does great in emulating a cluster of 7200's and allows 
>> operators to validate topologies and planned changes in mainstream 
>> IOS platforms.  Having that for NX-OS would increase the adoption and 
>> confidence in the platform.  VM's on multiple boxes make simulating a 
>> whole network of a given platform simple and easy.
>> >
>> >  From the outside Cisco continues to miss the need for this.  At 
>> least some of the other vendors are picking up how helpful this and 
>> are reacting positively to it.
>> >
>> > David
>> >
>> > <I've been ranting about this to my account team and Nexus 
>> management for a while now, so sorry if this is a duplicate you've 
>> already seen.>
>> >
>> > On Dec 20, 2011, at 10:03 AM, Tim Stevenson wrote:
>> >
>> >
>> >> You couldn't use Titanium to judge/discuss the nexus family as a 
>> whole either. Aside from 1KV, all the nexus products use ASIC 
>> hardware specific to that platform/linecard and no NXOS software 
>> emulator exists that mimics those behaviors.
>> >>
>> >> 2 cents,
>> >> Tim
>> >>
>> >> At 09:34 AM 12/20/2011, Luan Nguyen gushed:
>> >>
>> >>
>> >>> You can't use the software switch Nexus 1000V to judge/discuss 
>> the Nexus
>> >>> family products N7K, N5K...etc as a whole?
>> >>>
>> >>> Check out this discussion
>> >>> 
>> <<https://supportforums.cisco.com/thread/2054884>https://supportforums.cisco.com/thread/2054884>https://supportforums.cisco.com/thread/2054884 
>>
>> >>>
>> >>> Titanium as they call the NX-OS simulator is not available to the 
>> public
>> >>> though...
>> >>>
>> >>> -Luan
>> >>>
>> >>> On Tue, Dec 20, 2011 at 12:08 PM, -Hammer-<bhmccie at gmail.com>  
>> wrote:
>> >>>
>> >>>
>> >>>> Bah. Look like I need more of an education on Nexus in general. 
>> Thanks for
>> >>>> the easy pointer.
>> >>>>
>> >>>>
>> >>>> -Hammer-
>> >>>>
>> >>>> "I was a normal American nerd"
>> >>>> -Jack Herer
>> >>>>
>> >>>>
>> >>>>
>> >>>> On 12/20/2011 11:02 AM, Nick Hilliard wrote:
>> >>>>
>> >>>>
>> >>>>> On 20/12/2011 13:55, -Hammer- wrote:
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>> I know we can't throw NX code on Dynamips but I figured I 
>> would ask the
>> >>>>>> group anyway. We are starting to discuss Nexus platform 
>> options and I can
>> >>>>>> only get so much from demo depot before our AM gets whiny. Is 
>> anyone
>> >>>>>> currently emulating Nexus on anything that is open to the public?
>> >>>>>>
>> >>>>>>
>> >>>>>>
>> >>>>> nexus1k?
>> >>>>>
>> >>>>> Nick
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>
>> >>
>> >>
>> >>
>> >> Tim Stevenson, tstevens at cisco.com
>> >> Routing&  Switching CCIE #5561
>> >> Distinguished Technical Marketing Engineer, Cisco Nexus 7000
>> >> Cisco - <http://www.cisco.com>http://www.cisco.com
>> >> IP Phone: 408-526-6759
>> >> ********************************************************
>> >> The contents of this message may be *Cisco Confidential*
>> >> and are intended for the specified recipients only.
>> >>
>> >>
>> >>
>> >
>> >
>
>
>
>
> Tim Stevenson, tstevens at cisco.com
> Routing & Switching CCIE #5561
> Distinguished Technical Marketing Engineer, Cisco Nexus 7000
> Cisco - http://www.cisco.com
> IP Phone: 408-526-6759
> ********************************************************
> The contents of this message may be *Cisco Confidential*
> and are intended for the specified recipients only.
>
>


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