Equipment Supporting 2.5gbps and 5gbps

Colton Conor colton.conor at gmail.com
Sat Jan 30 19:06:46 UTC 2016


Josh,

Which Juniper switch are you referring to that is $102 per 10G port?

On Thu, Jan 28, 2016 at 10:08 AM, Josh Reynolds <josh at kyneticwifi.com>
wrote:

> You're buying your switches and optics in the wrong places.
>
> An SFP+ 10K w/ DOM is running me a little under $34. An SFP+ port runs
> me slightly over $102. (Juniper)
>
> On Thu, Jan 28, 2016 at 9:52 AM, Baldur Norddahl
> <baldur.norddahl at gmail.com> wrote:
> > The standard 24 or 48 port SFP+ switch is 10 times the price of the
> > equivalent switch with 24 or 48 port SFP. The same is true for the
> optics.
> >
> > 2.5 and 4 Gbit/s SFP modules are available and cheap. It is just that
> > ethernet ports will not take advantage of the extra speed. So it is only
> > useful on fibrechannel ports.
> >
> > It would be an improvement if we can get 2.5 or 4 Gbit/s ethernet on SFP
> > instead of paying for an all SFP+ switch.
> >
> > Regards,
> >
> > Baldur
> >
> >
> >
> >
> > On 28 January 2016 at 15:23, Greg Hankins <ghankins at mindspring.com>
> wrote:
> >
> >> The goals of these BASE-T projects are specifically to extend the life
> >> of the large installed base of Cat 5e/6 cabling with higher speeds.
> >> I wouldn't expect there to be a fiber interface, because we already have
> >> much higher speeds that are supported on MMF/SMF at better costs (ie if
> >> you had a fiber cable, would you really want to run 2.5 GE when 10 GE
> >> is so affordable now).  Anything is possible though, if there is enough
> >> demand and a market then someone will make it.
> >>
> >> Greg
> >>
> >> --
> >> Greg Hankins <ghankins at mindspring.com>
> >>
> >> -----Original Message-----
> >> Date: Thu, 28 Jan 2016 01:51:06 +0100
> >> From: Baldur Norddahl <baldur.norddahl at gmail.com>
> >> To: nanog at nanog.org
> >> Subject: Re: Equipment Supporting 2.5gbps and 5gbps
> >>
> >> Will we also get 2.5 Gbps fiber optics? SFP modules should support it?
> >>
> >> Regards
> >>
> >> Baldur
> >> Den 27. jan. 2016 23.00 skrev "Greg Hankins" <ghankins at mindspring.com>:
> >>
> >> > Fortunately the two groups came together in the IEEE, and there are no
> >> > competing standards.
> >> >
> >> > IEEE P802.3bz 2.5/5GBASE-T Task Force stared in March 2015:
> >> > - 2.5GBASE-T: 4 x 625 Mb/s over 100 m Cat 5e (Class D) or Cat 6
> (Class E)
> >> > unshielded twisted-pair copper cabling
> >> > - 5GBASE-T: 4 x 1.250 Gb/s over 100 m Cat 5e (Class D) or Cat 6
> (Class E)
> >> > unshielded twisted-pair copper cabling
> >> > - MultiGBASE-T auto-negotiation between 2.5GBASE-T, 5GBASE-T,
> 10GBASE-T,
> >> > 25GBASE-T, 40GBASE-T
> >> > - Automatic MDI/MDI-X configuration
> >> > - PoE support including IEEE 802.3bt amendment (power over 4 pairs)
> >> > - Optional Energy Efficient Ethernet (EEE) support
> >> > - Standard expected in September 2016
> >> > - Interfaces expected on the market in 2016
> >> > - Task Force web page http://www.ieee802.org/3/bz/
> >> >
> >> > You might have seen my Ethernet speeds presentation... the most recent
> >> > one is here:
> >> > http://ix.br/pttforum/9/slides/ixbr9-ethernet.pdf (December 2015)
> >> >
> >> > It's slightly out of date as the IEEE Interim was just last week.
> >> >
> >> > Greg
> >> >
> >> > --
> >> > Greg Hankins <ghankins at mindspring.com>
> >> >
> >> > -----Original Message-----
> >> > Date: Wed, 27 Jan 2016 21:45:27 +0000
> >> > From: A.L.M.Buxey at lboro.ac.uk
> >> > To: Justin Krejci <JKrejci at usinternet.com>
> >> > Cc: "nanog at nanog.org" <nanog at nanog.org>
> >> > Subject: Re: Equipment Supporting 2.5gbps and 5gbps
> >> >
> >> > Hi,
> >> > > I've a couple 10 port Cisco switches that support 2.5 and 5gbps over
> >> > cat5e, just wondering if there are any other vendors out there with
> >> > offerings that support these newer ethernet speeds. Supporting cat5e
> for
> >> > these multi-gig speeds is a real boon in many circumstances given the
> >> wide
> >> > popularity of it in many buildings.
> >> > >
> >> > > Does anyone have any experience with or knowledge of other products,
> >> > switches in particular, supporting 2.5 and 5 gbps?
> >> >
> >> > well, until the standard is ratified, these Multi-Gig offerings are
> quite
> >> > proprietary..
> >> >
> >> > there are 2 competing camps....hopefully they will be compatible and
> not
> >> > end up like beta/vhs once the dust settles
> >> >
> >> >
> >> > camp 1 - http://www.nbaset.org/
> >> >
> >> >
> >> > camp 2 - http://www.mgbasetalliance.org/
> >> >
> >> >
> >> > look at those vendors..... I think they hope by avoiding IEEE int he
> >> early
> >> > stages and taping silicon they'll
> >> > get the job done quicker - the drive mainly being faster wireless APs
> and
> >> > cheaper data centre interconnects...
> >> >
> >> > alan
> >> >
> >>
>



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