[137647] in North American Network Operators' Group
Re: SFP vs. SFP+
daemon@ATHENA.MIT.EDU (Jimmy Changa)
Thu Feb 17 18:38:53 2011
In-Reply-To: <5D2B264604643843B933666791F5D52F0A8EC6FF@nhrglma1.networkhardware.local>
From: Jimmy Changa <jimmy.changa007@gmail.com>
Date: Thu, 17 Feb 2011 18:38:39 -0500
To: Sam Chesluk <Sam@networkhardware.com>
Cc: Jason Lixfeld <jason@lixfeld.ca>, "<nanog@nanog.org>" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I'm curious also. Could you use a SFP in a ten gig port if you only need 4gb=
of throughput?
Sent from my iPhone
On Feb 17, 2011, at 6:25 PM, "Sam Chesluk" <Sam@networkhardware.com> wrote:
> 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.
>=20
> Sam Chesluk=20
> Network Hardware Resale
>=20
>=20
> -----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+
>=20
> 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.
>=20
