[137645] in North American Network Operators' Group

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SFP vs. SFP+

daemon@ATHENA.MIT.EDU (Jason Lixfeld)
Thu Feb 17 18:00:28 2011

From: Jason Lixfeld <jason@lixfeld.ca>
Date: Thu, 17 Feb 2011 18:00:21 -0500
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

I was asked today what the difference between SFP and SFP+ is.  I did =
really know, so I looked it up and it seems that the SFP spec provides =
capabilities for data rates up to 4.25Gb/s, whereas SFP+ supports up to =
10Gb/s.  Naturally, this made me wonder whether or not an optic that =
supported 10GbE always conformed to the SFP+ standard inherently, or if =
there are cases where a 10GbE optic might only support the SFP standard, =
thus having a 4.25Gb/s bottleneck.=


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