[137676] in North American Network Operators' Group
Re: SFP vs. SFP+
daemon@ATHENA.MIT.EDU (Richard A Steenbergen)
Thu Feb 17 22:20:16 2011
Date: Thu, 17 Feb 2011 21:17:55 -0600
From: Richard A Steenbergen <ras@e-gerbil.net>
To: Frank Bulk <frnkblk@iname.com>
In-Reply-To: <00bb01cbcf18$8ee491a0$acadb4e0$@iname.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Feb 17, 2011 at 09:04:29PM -0600, Frank Bulk wrote:
> Are there are any optics that plug into 10G ports but have a copper or
> optical 1G interface? There's some equipment that I'm specing where
> it is $10K for a multi-port 1G card, even while I really may only
> *occasionally* need a single 1G port and there's a free 10G port for
> me to use.
It doesn't work that way. The closest you can get is that the device can
support either 1G or 10G in the same port (since SFP and SFP+ are
physically and electrically the same), but it requires support from the
device (since both PHYs have to be implemented).
--
Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
