nanog mailing list archives
Re: Passive Optical Network (PON)
From: Leo Bicknell <bicknell () ufp org>
Date: Mon, 23 Jan 2017 09:15:14 -0800
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 () ufp org PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Passive Optical Network (PON) Kenneth McRae (Jan 21)
- Re: Passive Optical Network (PON) joel jaeggli (Jan 21)
- Re: Passive Optical Network (PON) Mike Hammett (Jan 21)
- Re: Passive Optical Network (PON) Carlos Alcantar (Jan 22)
- Re: Passive Optical Network (PON) Stas Bilder (Jan 22)
- Re: Passive Optical Network (PON) Leo Bicknell (Jan 23)
- Re: Passive Optical Network (PON) Josh Reynolds (Jan 23)
- Re: Passive Optical Network (PON) Leo Bicknell (Jan 23)
- Re: Passive Optical Network (PON) Max Tulyev (Jan 23)
- Re: Passive Optical Network (PON) joel jaeggli (Jan 21)