Thanks. To bad I missed your presentation during the engineering meeting.
Sounds pretty interesting.

Looking forward to seeing the demo later.


From: Rajat Ghai <[email protected]<mailto:[email protected]>>
Date: Monday, June 13, 2016 at 7:28 PM
To: Jeremy Huylebroeck 
<[email protected]<mailto:[email protected]>>
Cc: 
"[email protected]<mailto:[email protected]>"
 
<[email protected]<mailto:[email protected]>>
Subject: Re: [Opencompute-networking] example of using OCP gear for 
enterprise/campus networks?

"Is it something you can show?"

Yes, but not on OCP white box Wi-Fi APs , we are in the process of getting a 
NOS (linux) up and running for Edge-Core submitted Wi-Fi AP designs.

These are Broadcom designs and we need a modern kernel 3.x or beyond to really 
support network names paces and some advanced networking topologies using Linux 
netlink.

These APs don't are storage (Flash) constrained so a stock linux distro would 
not work. Probably not even ONL .
We are currently in the process of working towards building a openWRT distro 
for these Wi-Fi APs.

Once openWRT is ported (3.18.23 kernel version we are shoot for, as of now) , 
user space network automation framework would work without much mods.

We are shooting for a demo in the fall OCP networking workshop, location TBD.

BR
Rajat Ghai

On Mon, Jun 13, 2016 at 6:52 PM, 
<[email protected]<mailto:[email protected]>> wrote:


  *   How large can be the deployments of a CBW?

>>>> Large as in per site OR # of sites (multi site L2 / L3 VPNs etc) ? 
>>>> Regardless, the scale of the deployments is really based on traffic 
>>>> dimensioning and other factors , hard to provide a generic answer ; as 
>>>> such there should not be any hard / artificial  limits   .

The question was also broad to understand the thinking that was taken into 
account for not only performance and services but also manageability or cost.



  *   What operating system you choose for the switches?

>>>>>> The Switches have choice of any NOS ; AFAIK, currently there is support 
>>>>>> for ONL, Cumulus and maybe Ubuntu Snappy (Ubuntu folks can confirm 
>>>>>> availability) ; Going forward We (OCP+Benu) are focusing on tooling and 
>>>>>> instrumentation as well as dynamic network topology management of 10s of 
>>>>>> thousands of such campus/branches.

So the idea is to open source entirely the hardware and software foundation via 
OCP? That would be great in this case for our own usage.


  *   Is the network team developer enough in its mindset to program some 
advanced rules/automation or handle the Linux CLI?

>>> Yea.. centrally managed IFTTT style automation for multiple branches from a 
>>> CBW manager in the Data Center.

Is it something you can show?


  *   Was the architecture and hardware sort of over-provisioned for future use 
cases (ex: x86 CPU, more memory, more ports, bigger ports, fiber)?

>>>>> CBW H/W is always price sensitive and hence compute / storage constraint. 
>>>>> In the current state, you can assume a dual core ARM SoC as a compute 
>>>>> engine in the White Box APs and Switches. Flash any where from 256 MB to 
>>>>> a few GBs,  DRAM from 128 MBs to 1 GB ; From compute perspective, the CBW 
>>>>> switches prolly would can run containerized workloads, but it is tough to 
>>>>> do it on the APs, though we are using LXC on the openWRT NOS on APs. The 
>>>>> benefit of running containerized workloads on the CBW gear is to 
>>>>> facilitate automated dark launches w/o destabilizing the networking 
>>>>> topology.

Definitely interested as well in containerized apps/functions on the switches.


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