Re: 40G reforming

[Paul Zugnoni via NANOG]

Whether a 40G port can be broken into 4x10G is dependent on the
router/switch hardware and the optic you use. Good news is that most 40G
ports are capable of being broken out into 4x10G, since a 40G port is
usually operating as 4x10G internally anyway to the ASIC. The QSFP you'll
need would be a 40G-SR4 for MTP/Multimode or 40G-LR4 for MTP/Singlemode (or
a lower power, less expensive equivalent). This is a pretty common use of
40G ports. All 4 10G ports would then be at 850nm or 1310nm, which you can
then plug into any 10G SR or LR ports.

What router or switch platform is driving the 40G?

Paul Z

On Mon, Feb 5, 2018 at 7:57 AM, Baldur Norddahl 
wrote:

> Hello
>
> Is it possible to reform a 40G signal as individual 10G links?
>
> The idea is to use a 40G QSFP multimode MTP module such as
> https://www.fs.com/products/44058.html. Then connect it using a MTP
> breakout cable such as https://www.fs.com/products/68049.html to get four
> dual fiber connectors. These are then connected to four 10G SFP+ multimode
> modules such as https://www.fs.com/products/11589.html. The reformer
> could be https://www.fs.com/products/43721.html. And finally the reformed
> signal can be transported using anything including DWDM modules such as
> https://www.fs.com/products/44058.html.
>
> Just using fs.com as a reference to the kind of equipment I am talking
> about. Many other vendors offer simelar products.
>
> The motivation for doing this is to get access to the many options that
> are available for 10G optics but not possible with 40G.
>
> Regards,
>
> Baldur
>
>

Re: Effects of Cold Front on Internet Infrastructure - U.S. Midwest

[Paul Zugnoni via NANOG]

And apparently fire. I wasn’t going to chime in but one of my providers
*just* alerted us to an electrical fire in a Minneapolis pop causing loads
to failover to ups. Unknown whether weather conditions contributed to the
incident. PZ

On Wed, Jan 30, 2019 at 09:25 Naslund, Steve  wrote:

> >To the 'infrastructure' question, I think the biggest concerns would >be
> power related. Although we have a DC in Buffalo that is cooled >on
> ambient outside air that has the opposite problem ; it's TOO cold >at the
> moment, so we are cycling most of the hot server exhaust >back into the
> computer rooms to maintain temperatures.
>
>
>
> Exactly what he said.  We actually run cooling and supplemental heating in
> extreme cold.  We need to keep the chiller pulling heat into itself and
> pumps moving on high to keep the outdoor components from freezing up.
> During the summer you might run close to or slightly below freezing on the
> coolant loops but in these conditions you cannot run that low a temp
> because things will freeze up before the coolant returns.  We also have to
> keep the room reasonably warm (50F +).  You also need to watch out for fast
> temp excursions to keep humidity under control.
>
>
>
> The wind speed does make some difference since it is like a fan on your
> evaporator pulling heat out of the cooling loops faster than still air will.
>
>
>
> Steven Naslund
>
> Chicago IL
>
-- 
PZ
Head of Datacenter and Network Infrastructure, Wish
p...@wish.com +1-650-313-3458

Re: AWS 40/100G wholesale Express-Route ?

[Paul Zugnoni via NANOG]

Hi,
Some quick terminology to be clear, AWS uses the term "Direct Connect"
whereas MS Azure uses "Express Route". Right now, max link bandwidths
each:
  - AWS Direct Connect: 10G.
  - Azure Express Route: 100G (though I'm unsure this is available in
every location)
  - GCP Dedicated Interconnect: 10G (100G in beta)

If your equipment is not local to a location where your desired cloud
provider has the handoff, then you must have some carrier service in
between. There are several partners of these cloud providers. You can
buy a circuit from them to reach a port on the cloud provider side.
The partner handles the lower layer connectivity into the cloud
provider gear. Some partners may offer above 10G but you should review
in detail how they manage the bandwidth to be sure you get the
performance you need.

PZ

On Mon, Jun 24, 2019 at 10:00 AM Jérôme Nicolle  wrote:
>
> Hello everyone,
>
> I was wondering, is there any way to get more than a 10G port for a PNI
> with AWS customers ?
>
> Right now I'm looking at 4 ridiculously expensive X-Cos (on two
> locations, so that makes 8) to establish a redundant 40Gbps backhaul,
> where I have 40/100G ports available.
>
> How could we deal with that ? Is there an "off-market" offering for
> higher speed interconnects ?
>
> Best regards,
>
> --
> Jérôme Nicolle
> +33 6 19 31 27 14
>


-- 
PZ
Head of Datacenter and Network Infrastructure, Wish
p...@wish.com +1-650-313-3458

Re: Equinix

[Paul Zugnoni via NANOG]

I'll second Martijn's comment and add this: Never choose "Next Available."
It's the easy route up front but painful the rest of its life. We started
predetermining where we wanted each of our xconnects (regardless which colo
company) and submitting the port numbers with tickets / Equinix
portal-based request. And it's been way smoother sailing since. You are you
own source of truth, not the tech that serviced your ticket.  PZ

On Thu, Dec 5, 2019 at 8:33 AM Grzegorz Janoszka 
wrote:

> On 05/12/2019 17:10, Martijn Schmidt via NANOG wrote:
> > You're probably best off ordering those crossconnects through the
> > Equinix portal, then you can choose the exact positions for the order
> > that goes to the facility rather than relying on a human to transcribe
> > them correctly from your PDF.
>
> If only Equinix portal reflected how your patch panels really look like...
>
> --
> Grzegorz Janoszka
>


-- 
PZ
Head of Datacenter and Network Infrastructure, Wish
p...@wish.com +1-650-313-3458