And just to comment from a product standpoint on why 25G will become more common...
To Mike's point, 40G is made with 4x 10G meaning it eats up 4 SERDES on a chip. 25G uses 1 SERDES that runs faster and 100G is made again with 4x of the 25G SERDES. Now that 25G capable SERDES is more prolific on the chip side, it makes more sense to put 25G ports on things and use a single SERDES vs. putting 40G and chewing up 4 of the same SERDES running at slower speeds. If you are going to use 4 on these newer chips, it will be to make 100G. On Fri, Apr 24, 2020 at 11:11 AM Mike Hammett <af...@ics-il.net> wrote: > I have switches around, but I can't get transport or upstream connections > with them without subsidizing the purchase of the card. As someone that has > a lot of 40G and wishes that 40G wasn't dead, it is unless you have total > control of the infrastructure. > > > 40G is 4x10G and (modern) 100G is 4x25G. Yes, before it was 10x10, but > that changed as it was too inefficient. > > In a single channel, you can run either 10G or 25G. In four channels, you > can run 40G or 100G. > > > If we can't get 100G at 1310 nm to work at the distances we need, we're > likely going to go Nx25G in DWDM. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > > > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> > ------------------------------ > *From: *"Steven Kenney" <st...@wavedirect.org> > *To: *"af" <af@af.afmug.com> > *Sent: *Friday, April 24, 2020 10:07:16 AM > *Subject: *Re: [AFMUG] CCR2004 coming out > > That is up for debate but we'll see in a few years. I'd rather jump to 40 > than 25. You almost defeated your own point stating you have a lot of 40G > laying around. Price has come down on them and transceivers are not as > expensive either. Personally I'd rather jump to 100 :) > > 40G transceivers I can get for most models for $55. (short range) Same > price for 25G! Why bother with 25? > Short range 100G are under $200 each. > > > -- > Steven Kenney > Network Operations Manager > WaveDirect Telecommunications > http://www.wavedirect.net > (519)737-WAVE (9283) > > ------------------------------ > *From: *"Kurt Fankhauser" <lists.wavel...@gmail.com> > *To: *"af" <af@af.afmug.com> > *Sent: *Friday, April 24, 2020 10:03:36 AM > *Subject: *Re: [AFMUG] CCR2004 coming out > > Dennis,how many of these do you have on order? > > On Fri, Apr 24, 2020 at 9:42 AM Mike Hammett <af...@ics-il.net> wrote: > >> 25G will be far more common than 40G. >> 40G is dead and has been dead for years. I wish that wasn't so because I >> have a lot of 40G switches that I'd love to connect to things, but that's >> not going to happen. >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions <http://www.ics-il.com/> >> <https://www.facebook.com/ICSIL> >> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> >> <https://www.linkedin.com/company/intelligent-computing-solutions> >> <https://twitter.com/ICSIL> >> Midwest Internet Exchange <http://www.midwest-ix.com/> >> <https://www.facebook.com/mdwestix> >> <https://www.linkedin.com/company/midwest-internet-exchange> >> <https://twitter.com/mdwestix> >> The Brothers WISP <http://www.thebrotherswisp.com/> >> <https://www.facebook.com/thebrotherswisp> >> >> >> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> >> ------------------------------ >> *From: *"Steven Kenney" <st...@wavedirect.org> >> *To: *"af" <af@af.afmug.com> >> *Sent: *Friday, April 24, 2020 8:38:00 AM >> *Subject: *Re: [AFMUG] CCR2004 coming out >> >> Ugh.. I was wondering when the 40Gbps version was coming out. 25 is >> kinda a black sheep in the industry. Good luck matching equipment with >> upstreams. I know they can get the cards but most are moving to 40 or 100. >> >> -- >> Steven Kenney >> Network Operations Manager >> WaveDirect Telecommunications >> http://www.wavedirect.net >> (519)737-WAVE (9283) >> >> ------------------------------ >> *From: *"af" <af@af.afmug.com> >> *To: *"af" <af@af.afmug.com> >> *Cc: *"Dennis Burgess" <dmburg...@linktechs.net> >> *Sent: *Thursday, April 23, 2020 2:17:51 PM >> *Subject: *[AFMUG] CCR2004 coming out >> >> >> >> >> >> 10x 10 Gigabit SFP+ Interfaces >> >> 2x 25 Gigabit SFP28 Interfaces >> >> Quad Core ARM 64 bit CPU >> >> >> >> List price: $600 >> >> >> >> >> >> *[image: LTI-Full_175px]* >> >> >> *Dennis Burgess, Mikrotik Certified Trainer MTCNA, MTCRE, MTCWE, MTCTCE, >> MTCINE, MTCSE, HE IPv6 Sage, Cambium ePMP Certified * >> >> Author of "Learn RouterOS- Second Edition” >> >> *Link Technologies, Inc* -- Mikrotik & WISP Support Services >> >> *Office*: 314-735-0270 Website: http://www.linktechs.net >> >> Create Wireless Coverage’s with www.towercoverage.com >> >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Harold Bledsoe
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