SFP vs. SFP+

Fri Feb 18 03:17:55 UTC 2011

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 at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)