Home page logo

nanog logo nanog mailing list archives

Re: Nexus emulation? Anyone?
From: -Hammer- <bhmccie () gmail com>
Date: Tue, 20 Dec 2011 12:18:47 -0600

Doesn't "Titanium" achieve this for you? I know. It's Internal. But it simulates the 7k. Or am I getting it backwards?

My point is that if Cisco already simulates it Internally it's only a matter of time before someone ports something....


"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.


<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,

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

Titanium as they call the NX-OS simulator is not available to the public


On Tue, Dec 20, 2011 at 12:08 PM, -Hammer-<bhmccie () gmail com>  wrote:

Bah. Look like I need more of an education on Nexus in general. Thanks for
the easy pointer.


"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?



Tim Stevenson, tstevens () 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.

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]