Mike, Another practical question (for what you are seeking) is how much of the control plane software (for features you seek) does Broadcom provide with their reference design and how much must Ubiquiti write? Thanks, Brough Brough Turner netBlazr Inc. – Free your Broadband! Mobile: 617-285-0433 Skype: brough netBlazr Inc. <http://www.netblazr.com/> | Google+ <https://plus.google.com/102447512447094746687/posts?hl=en> | Twitter <https://twitter.com/#%21/brough> | LinkedIn <http://www.linkedin.com/in/broughturner> | Facebook <http://www.facebook.com/brough.turner> | Blog <http://blogs.broughturner.com/> | Personal website <http://broughturner.com/> On Sun, Dec 25, 2016 at 10:48 AM, Joel Jaeggli <joelja@bogus.com> wrote:
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On Dec 24, 2016, at 15:51, Mike Hammett <nanog@ics-il.net> wrote:
I've asked Broadcom directly, but being as though I don't have an intent to buy tens of thousands of chips (or any at all), I don't expect I'll hear back. I was hoping someone here would have some insight.
Do any of you know what functionality is available on those chips? That's the chip that powers the Ubiquiti 10G switches and I figured I would limit my most aggressive feature requests to things they can actually deliver with the platform as is.
Other than things you just assume a managed switch has like 802.1p and 802.1q, it mentions an advanced ContentAware™ Engine (which means?), IEEE1588 (sync over Ethernet), 802.1ag (OAM stuff), "Enhanced DoS attack statistics gathering" (which means?), "IPv4/IPv6 L3 packet classification" (which means?), etc.
I'm sure there's an array of things to ask about, but MLAG and S-Flow are at the top of my list at the moment.
MCLAG is a control plane function.
Sflow on devices that don't generate it in a distributed fashion is done but punting sampled packets to the control-plane for classification by an sflow agent. Sample rate is therefore contingent on adequate CPU and control-plane bandwidth.
The greyhound switch SOC may be hampered by the amount of CPU available locally, but the 2MB packet buffer also is probably cause for caution.
https://www.broadcom.com/products/ethernet-connectivity/switch-fabric/ bcm5341x/
----- Mike Hammett Intelligent Computing Solutions
Midwest Internet Exchange
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