Passive Optical Network (PON)

Mon Jan 23 17:25:19 UTC 2017

That's a genious idead

On Jan 23, 2017 11:17 AM, "Leo Bicknell" <bicknell at ufp.org> wrote:

> In a message written on Sat, Jan 21, 2017 at 03:22:20PM -0600, Stas Bilder
> wrote:
> > Now, to the projects.
> > I have never heard of seen PON on a DC level.
>
> A friend of mine told me of a fascinating in-data center PON solution.
>
> He had a customer that needed high speed multicast fan-out.  They
> chose to use a 10G/1G PON solution, a single source node sending
> 10G PON with a 1G backchannel, 100% of the traffic was multicast.
> It could be passively split in DC up to 128:1 with zero "packet
> loss", good luck finding an Ethernet switch which can take in 10G
> of multicast in and turn it into 1280G of multicast out without
> dropping a frame.  It was all done entirely inside of a single
> data center.
>
> Since then I've mentioned the trick to several other folks I know
> who need high speed multicast/broadcast replication.  In the DC
> distance is rarely an issue, so the solution degenerates to special
> SFP's and a splitter, which is pretty dang simple.
>
> However, this is clearly a corner case, and I agree with your
> assessment overall.
>
> --
> Leo Bicknell - bicknell at ufp.org
> PGP keys at http://www.ufp.org/~bicknell/
>