[187398] in North American Network Operators' Group
Re: Equipment Supporting 2.5gbps and 5gbps
daemon@ATHENA.MIT.EDU (Brandon Butterworth)
Thu Jan 28 13:59:16 2016
X-Original-To: nanog@nanog.org
Date: Thu, 28 Jan 2016 18:57:10 GMT
From: Brandon Butterworth <brandon@rd.bbc.co.uk>
To: brandon@rd.bbc.co.uk, yang.yu.list@gmail.com
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> > With 10G it's been the opposite, nobody was using copper so SFP+ is
> > cheap. Only recently has copper 10G started to become common, a bit too
> > late to be worth bothering with now and as there are no copper SFP+
> > Having new servers switch to copper instead of sfp is a nuisance
>
> SFP+ Copper Twinax is another option for 10G to save on the transceivers
I should have been more precise with terms. The context here is doing
less than 10G to support old cat5/6 installations.
I didn't mention Twinax as if you could use that you'd not need a 2.5
or 5g standard nor have a problem with recent servers coming with
10GbaseT instead of sfp+ when all your previous ones are connected to a
SFP+ only switch with fibre or twinax cables.
brandon
