Nexus emulation? Anyone?

Tim Stevenson tstevens at cisco.com
Tue Dec 20 12:31:30 CST 2011


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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