[147737] in North American Network Operators' Group
Re: Nexus emulation? Anyone?
daemon@ATHENA.MIT.EDU (David Sinn)
Tue Dec 20 13:52:25 2011
From: David Sinn <dsinn@dsinn.com>
In-Reply-To: <4EF0D187.1000807@gmail.com>
Date: Tue, 20 Dec 2011 10:51:25 -0800
To: -Hammer- <bhmccie@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Titanium is a release vehicle for LISP =
(http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/release/=
LISP/50_lisp_nx-os_release_note.html), so it is public knowledge of it's =
existence. Given that Titanium is just a PC with a few NIC's there =
shouldn't be much effort to get it to run under QEMU/KVM/[VM of your =
choice]. It would probably take someone some time to try and hack it =
together or quicker if Cisco was willing to publish some "use at your =
own risk" pointers. It is, as Tim points out, a support question. =
Hopefully the pressure of their large customers will get them to see =
that the support is worth it for the continued adoption of the platform.
As I said, other vendors have clued in to this and thus their friction =
to adoption is reduced as a result.
David
On Dec 20, 2011, at 10:18 AM, -Hammer- wrote:
> Doesn't "Titanium" achieve this for you? I know. It's Internal. But it =
simulates the 7k. Or am I getting it backwards?
>=20
> My point is that if Cisco already simulates it Internally it's only a =
matter of time before someone ports something....
>=20
> -Hammer-
>=20
> "I was a normal American nerd"
> -Jack Herer
>=20
>=20
>=20
> 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.
>>=20
>> 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.
>>=20
>> =46rom 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.
>>=20
>> David
>>=20
>> <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.>
>>=20
>> On Dec 20, 2011, at 10:03 AM, Tim Stevenson wrote:
>>=20
>> =20
>>> 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.
>>>=20
>>> 2 cents,
>>> Tim
>>>=20
>>> At 09:34 AM 12/20/2011, Luan Nguyen gushed:
>>>=20
>>> =20
>>>> You can't use the software switch Nexus 1000V to judge/discuss the =
Nexus
>>>> family products N7K, N5K...etc as a whole?
>>>>=20
>>>> Check out this discussion
>>>> =
<https://supportforums.cisco.com/thread/2054884>https://supportforums.cisc=
o.com/thread/2054884
>>>>=20
>>>> Titanium as they call the NX-OS simulator is not available to the =
public
>>>> though...
>>>>=20
>>>> -Luan
>>>>=20
>>>> On Tue, Dec 20, 2011 at 12:08 PM, -Hammer-<bhmccie@gmail.com> =
wrote:
>>>>=20
>>>> =20
>>>>> Bah. Look like I need more of an education on Nexus in general. =
Thanks for
>>>>> the easy pointer.
>>>>>=20
>>>>>=20
>>>>> -Hammer-
>>>>>=20
>>>>> "I was a normal American nerd"
>>>>> -Jack Herer
>>>>>=20
>>>>>=20
>>>>>=20
>>>>> On 12/20/2011 11:02 AM, Nick Hilliard wrote:
>>>>>=20
>>>>> =20
>>>>>> On 20/12/2011 13:55, -Hammer- wrote:
>>>>>>=20
>>>>>>=20
>>>>>> =20
>>>>>>> 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?
>>>>>>>=20
>>>>>>>=20
>>>>>>> =20
>>>>>> nexus1k?
>>>>>>=20
>>>>>> Nick
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>>=20
>>>>>> =20
>>>>> =20
>>>=20
>>>=20
>>>=20
>>> 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.
>>>=20
>>>=20
>>> =20
>>=20
>> =20
