[AusNOG] Open Networking

[Greg Anderson]

My question would be regarding buffer sizes.  Looking at the Dell S3048-ON
BaseT switch, it has only 4MB buffers, the SFP+ S4048-ON has 12MB buffers,
but this is about 1/10th to 1/3 (respectively) of what a Nexus 9300 series
has (~37-52MB).

Is this really enough to run a converged network environment in a
datacentre, especially with iSCSI being one of those protocols?

(Appreciate any advice either on or off list)

Thanks,
Greg.

On Mon, 4 Jul 2016 at 14:46 Matt Smee <m.smee at unsw.edu.au> wrote:

> For what it’s worth, I remember hearing Cumulus now supports PoE+ from
> 3.0+ though limited hardware so far:
>
>
>
> https://docs.cumulusnetworks.com/display/DOCS/Power+over+Ethernet+-+PoE
>
> https://cumulusnetworks.com/support/linux-hardware-compatibility-list/
>
> ‘edgecore AS4610-54P
> <http://www.edge-core.com/ProdDtl.asp?sno=472&AS4610-54P>’
>
>
>
> I’ve been impressed with the zero touch deployment part of it but still
> learning/playing with it at the moment. Though it doesn’t seem quite yet
> ideal in the enterprise access space, there’s some missing features that I
> do like such as the various L2 security options but then again it’s
> definitely more Data Centre focused than enterprise access, though that may
> change in the future…
>
>
>
>
> I’d also give a +1 to Ben, why pay so much for simple routing/L3
> switching? In 3-5 years with some maturity I can’t see how you could ever
> justify the $bigvendor prices for some deployments or at least some devices
> within the network. Looking at doing 40/100G and we can see its definitely
> looking like a good option even now.
>
>
>
>
>
> *From:* AusNOG [mailto:ausnog-bounces at lists.ausnog.net] *On Behalf Of *Simon
> Attwell
> *Sent:* Monday, 4 July 2016 12:35 PM
> *To:* ausnog at lists.ausnog.net
> *Subject:* [AusNOG] Open Networking
>
>
>
> Hi All,
>
>
>
> Just curious how many of you have deployed / are deploying / Open
> Networking in production environments.
>
> I'm interested to see if ON is making its way down to the edge (1Gbps
> PoE/PoE+) or if it's mainly being used at the distribution / core layers or
> at the service provider level where there's little end device connectivity
> and it's more about moving the packets around.
>
>
>
> Comments on hardware choice / stability / longevity / MTBF / support, are
> also appreciated.
>
>
>
> From a Cumulus perspective it looks like 1 Gbps - 100Gbps is where things
> are focused.
>
> Nothing with PoE/PoE+ support so it looks like at the moment we're only
> talking about datacenter switching.
>
>
>
> What I don't see deployed today is a lot of technology mix, especially in
> switching. Customers have a preference and for support / interop / personal
> reasons tend to stick with a single vendor for switching.
>
> In the past this has made sense as switches did not always play well with
> others.
>
>
>
> I'm wondering what you all think the 3 - 5 year picture looks like.
>
>
>
> I suspect it looks a lot like the current virtualization market. A few
> major players with custom software built on open source foundations, being
> hardware agnostic and the holdouts trying to ignore the fact that the
> industry is fundamentally changing.
>
>
>
> - Simon
>
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