[137646] in North American Network Operators' Group
RE: SFP vs. SFP+
daemon@ATHENA.MIT.EDU (Sam Chesluk)
Thu Feb 17 18:26:38 2011
Date: Thu, 17 Feb 2011 15:25:13 -0800
In-Reply-To: <36F57F0C-B78A-46AC-AAC4-E5FF902DD032@lixfeld.ca>
From: "Sam Chesluk" <Sam@networkhardware.com>
To: "Jason Lixfeld" <jason@lixfeld.ca>,
<nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Jason - there are no SFP-10G parts based off of the original SFP; they
all are based on the SFP+ standard, so there will be no issues with the
optic not being able to work at the full 10Gbps it's rated for.
Sam Chesluk=20
Network Hardware Resale
-----Original Message-----
From: Jason Lixfeld [mailto:jason@lixfeld.ca]=20
Sent: Thursday, February 17, 2011 3:00 PM
To: nanog@nanog.org
Subject: SFP vs. SFP+
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.
