Re: breakout

[Olivier Benghozi]

Hi,

yep, that's the right way to work cleanly, just add a «special patch panel» 
instead of dealing with plenty of additional wires.

We use such method to do 10GE with routers modules full of QSFP+ configured as 
4x10. On our side we went for a modular Huber+Suhner solution, 1 U with a 
maximum of 18 MTP (from 18 QSFP+) internally wired to 72 LC duplex.
I searched a bit before choosing this, it looks like this was (still is ?) the 
denser solution.

They are divided in modules of 3 MTP to 12 LC-duplex (wired accordingly to the 
QSFP+ / MTP8 pairing):
https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Modules/ITD-12-LCUD-03-08CF-SM-NS-00WW
 
<https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Modules/ITD-12-LCUD-03-08CF-SM-NS-00WW>

They go inside some various chassis, we use their 1U one than can host 6 of 
such modules:
https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Chassis/IANOS-STD-CHASSIS-FLX-1U-2G-T4
 
<https://ecatalog.hubersuhner.com/product/E-Catalog/Fiber-optics/Fiber-management-systems/Chassis/IANOS-STD-CHASSIS-FLX-1U-2G-T4>

We use them since 2017: https://twitter.com/OBenghozi/status/885528976801837057 
<https://twitter.com/OBenghozi/status/885528976801837057>


regards,
Olivier

> Le 9 janv. 2020 à 17:29, Baldur Norddahl  a écrit :
> 
>  Hello
> 
> In my opinion the "nice" way of breaking out QSFP into 10G is something like 
> this:
> 
> https://www.fs.com/de-en/products/43552.html 
> <https://www.fs.com/de-en/products/43552.html> 
> 
> 40GBASE-PLR4 to 10GBASE-LR Breakout Panel 1U Rack-Mount, 24x LC Quad, 12x MTP 
> Elite (0.35dB IL), Single Mode
> 
> You connect your QSFP module using a MTP cable to the breakout panel. That 
> particular panel will accept up to 12x MTP connections (12 QSFP ports) which 
> equals 48x 10G LR 10 km single mode. 
> 
> If you don't need quite that many breakouts this solution is also available 
> in smaller cassettes:
> 
> https://www.fs.com/de-en/products/68401.html 
> <https://www.fs.com/de-en/products/68401.html> 
> 
> MTP-8 to 4x LC Duplex, 8 Fibres OS2 Single Mode FHD MTP Cassette
> 
> That will terminate one MTP cable (1 QSFP port).
> 
> I prefer the panel solution over breakout cables because the later assumes 
> all the connections are going the same place. Also the panel solution will 
> appear as an extension of the switch or router. Mentally it is simply extra 
> ports on a separate panel.
> 
> Regards,
> 
> Baldur 

Re: breakout

[Baldur Norddahl]

 Hello

In my opinion the "nice" way of breaking out QSFP into 10G is something
like this:

https://www.fs.com/de-en/products/43552.html

40GBASE-PLR4 to 10GBASE-LR Breakout Panel 1U Rack-Mount, 24x LC Quad, 12x
MTP Elite (0.35dB IL), Single Mode

You connect your QSFP module using a MTP cable to the breakout panel. That
particular panel will accept up to 12x MTP connections (12 QSFP ports)
which equals 48x 10G LR 10 km single mode.

If you don't need quite that many breakouts this solution is also available
in smaller cassettes:

https://www.fs.com/de-en/products/68401.html

MTP-8 to 4x LC Duplex, 8 Fibres OS2 Single Mode FHD MTP Cassette

That will terminate one MTP cable (1 QSFP port).

I prefer the panel solution over breakout cables because the later assumes
all the connections are going the same place. Also the panel solution will
appear as an extension of the switch or router. Mentally it is simply extra
ports on a separate panel.

Regards,

Baldur

Re: breakout

[Radu-Adrian Feurdean]

On Wed, Jan 8, 2020, at 20:09, Randy Bush wrote:
> i am not a fiber/sfp/... geek, so clue bat please
> 
> on my left, i have a delta 9020SL running arcos, female 40g qsfp
> 
> on my right, i have incoming 10g 1310nm single mode from the seattle
> internet exchange.  it is currently into a redstone 10g sfp

Ideally, you should use a "breakout optic" if supported by your device: it 
plugs into an 40Gbps port and delivers 4x10 Gbps via a MTP/MPO "breakout cable" 
(MTP/MPO at one end, change from one fat cable to 4 duplex cables somewhere in 
the middle, 4xLC duplex at the other end).
Optic : https://www.fs.com/fr/products/37016.html (or the "riskier" 1km version 
: https://www.fs.com/fr/products/48276.html )
Cable : https://www.fs.com/fr/products/80240.html

An "10G into 40G port adapter", as previously suggested could also work.
 
> NAMEVALUE
> -
> SwPort  1
> Status  PRESENT
> Valid   True
> Vendor  FiberStore
> Model   SFP-10GLR-31
> Serial-Number   G1804021292
> TypeSFP
> Module-Type 10G_BASE_SX
> Media-Type  FIBER
> Module-Capability   F_10G
> Length  255
> Length-Description
> 
> which i am swapping out for the delta 9020

At some point I can see "10G_BASE_SX" which is a little confusing, since "Base 
SX" is 1G on multi-mode fiber, in conflict with "SFP-10GLR" which is 10G on 
single-mode. It really is a 10G-LR, right ?

> so i am look at something such as https://www.fs.com/products/30900.html
> except i do not understand active/passive, AOC1M, etc

Don't ! DAC (usually copper-based) and AOC are cables with optics at each end 
(if you can call a "copper optic" an "optic"). Cable cannot be detached 
from the *SFP*.

Re: breakout

[Randy Bush]

> However, if you just need to use 10g of the 40g port, you can do it
> much cheaper and easier with just this part:
> 
> https://www.fs.com/products/72582.html

we will test to be sure this appears as one port of a breakout

randy

Re: breakout

[Matt Erculiani]

I doubt it applies to Randy's 48 port switch (and maybe in general), but
for posterity: be advised that the QSFP28 to SFP+ adapter is physically
taller than a standard QSFP28 optic, outside of the device. Inside is still
to spec of course.

Sort of like how RJ45 SFPs are slightly taller than fiber SFPs, so some
switches can't support two rows of them, e.g. Juniper's QFX5100. They CAN
fit, but it requires a little persuasion that most people won't be
comfortable with.

-Matt

On Wed, Jan 8, 2020, 12:37 Randy Bush  wrote:

> > I believe that these (and the AOC option) require that the switch
> > understand / supports splitting the 40G interface into 4x10s
>
> arcos does what i expect, sub units
>
> as i have no problem wasting ports on the delta box (there are 48 and i
> only need two :)  i think ben's
>
> https://www.fs.com/products/72582.html
>
> looks to be the simplest solution.
>
> thank you all!
>
> randy
>

Re: breakout

[Randy Bush]

> I believe that these (and the AOC option) require that the switch
> understand / supports splitting the 40G interface into 4x10s

arcos does what i expect, sub units

as i have no problem wasting ports on the delta box (there are 48 and i
only need two :)  i think ben's

https://www.fs.com/products/72582.html

looks to be the simplest solution.

thank you all!

randy

Re: breakout

[Randy Carpenter]

Old module says "10G_BASE_SX" so that is multimode fiber, which complicates 
things a bit.

You can see about getting a single-mode handoff instead, or you may need the 
QSFP-SFP+ adapter (or intermediary switch).


thanks,
-Randy

- On Jan 8, 2020, at 2:26 PM, Ben Cannon b...@6by7.net wrote:

> This is another good way to go, make sure you have a single mode handoff from
> the IX (you should, but double check this, orange fiber and yellow fiber are
> very different physically in size and generally not compatible.

> -Ben Cannon
> CEO 6x7 Networks & 6x7 Telecom, LLC
> [ mailto:b...@6by7.net | b...@6by7.net ]

>> On Jan 8, 2020, at 11:20 AM, Matt Erculiani < [ mailto:merculi...@gmail.com |
>> merculi...@gmail.com ] > wrote:

>> I think you're looking for an MTP breakout cable, rather than a QSFP28 
>> breakout.

>> The MTP breakout requires separate optics, whereas the active breakout can 
>> plug
>> directly into a device's SFP+ ports.

>> Something like...

>> [ https://www.fs.com/products/24422.html |
>> https://www.fs.com/products/24422.html ]
>> And
>> [ https://www.fs.com/products/41426.html |
>> https://www.fs.com/products/41426.html ]

>> You'll also need to tell your device to break out it's 40 g into the 
>> component
>> 10g channels. Then they'll each get a distinct port number. (Usually just a
>> number appended to the parent port)

>> -Matt

>> On Wed, Jan 8, 2020, 12:10 Randy Bush < [ mailto:ra...@psg.com | 
>> ra...@psg.com ]
>> > wrote:

>>> i am not a fiber/sfp/... geek, so clue bat please

>>> on my left, i have a delta 9020SL running arcos, female 40g qsfp

>>> on my right, i have incoming 10g 1310nm single mode from the seattle
>>> internet exchange. it is currently into a redstone 10g sfp

>>> NAME VALUE
>>> -
>>> SwPort 1
>>> Status PRESENT
>>> Valid True
>>> Vendor FiberStore
>>> Model SFP-10GLR-31
>>> Serial-Number G1804021292
>>> Type SFP
>>> Module-Type 10G_BASE_SX
>>> Media-Type FIBER
>>> Module-Capability F_10G
>>> Length 255
>>> Length-Description

>>> which i am swapping out for the delta 9020

>>> so i am look at something such as [ https://www.fs.com/products/30900.html |
>>> https://www.fs.com/products/30900.html ]
>>> except i do not understand active/passive, AOC1M, etc

>>> thanks in advance

>>> randy

Re: breakout

[Warren Kumari]

On Wed, Jan 8, 2020 at 2:20 PM Luke Guillory  wrote:
>
> You'd need something like this, which you can jumper over to the 10G port.
>
>
> https://www.fs.com/products/37016.html
>
> Cable to break it out.
>
> https://www.fs.com/products/68048.html
>
>

I believe that these (and the AOC option) require that the switch
understand / supports splitting the 40G interface into 4x10s -- now,
presumably Randy can figure that out for the Arcus, but it's
disappointing how many devices *dont* support this.

Actually, while we are discussing this, does anyone know of a current
NIC which has 4 or more 10G ports? The Mellanox switches can
channelize their ports (and they sell a cable for this), but the NICs
don't support it...

W

>
> Luke
>
>
>
> Ns
>
>
>
>
>
>
> -Original Message-
> From: NANOG  On Behalf Of Randy Bush
> Sent: Wednesday, January 08, 2020 1:10 PM
> To: North American Network Operators' Group 
> Subject: breakout
>
> *External Email: Use Caution*
>
> i am not a fiber/sfp/... geek, so clue bat please
>
> on my left, i have a delta 9020SL running arcos, female 40g qsfp
>
> on my right, i have incoming 10g 1310nm single mode from the seattle internet 
> exchange.  it is currently into a redstone 10g sfp
>
> NAMEVALUE
> -
> SwPort  1
> Status  PRESENT
> Valid   True
> Vendor  FiberStore
> Model   SFP-10GLR-31
> Serial-Number   G1804021292
> TypeSFP
> Module-Type 10G_BASE_SX
> Media-Type  FIBER
> Module-Capability   F_10G
> Length  255
> Length-Description
>
> which i am swapping out for the delta 9020
>
> so i am look at something such as https://www.fs.com/products/30900.html
> except i do not understand active/passive, AOC1M, etc
>
> thanks in advance
>
> randy



-- 
I don't think the execution is relevant when it was obviously a bad
idea in the first place.
This is like putting rabid weasels in your pants, and later expressing
regret at having chosen those particular rabid weasels and that pair
of pants.
   ---maf

Re: breakout

[Ben Cannon]

This is another good way to go, make sure you have a single mode handoff from 
the IX (you should, but double check this, orange fiber and yellow fiber are 
very different physically in size and generally not compatible.

-Ben Cannon
CEO 6x7 Networks & 6x7 Telecom, LLC 
b...@6by7.net <mailto:b...@6by7.net>




> On Jan 8, 2020, at 11:20 AM, Matt Erculiani  wrote:
> 
> I think you're looking for an MTP breakout cable, rather than a QSFP28 
> breakout.
> 
> The MTP breakout requires separate optics, whereas the active breakout can 
> plug directly into a device's SFP+ ports.
> 
> Something like...
> 
> https://www.fs.com/products/24422.html 
> <https://www.fs.com/products/24422.html>
> And
> https://www.fs.com/products/41426.html 
> <https://www.fs.com/products/41426.html>
> 
> You'll also need to tell your device to break out it's 40 g into the 
> component 10g channels. Then they'll each get a distinct port number. 
> (Usually just a number appended to the parent port)
> 
> -Matt
> 
> On Wed, Jan 8, 2020, 12:10 Randy Bush mailto:ra...@psg.com>> 
> wrote:
> i am not a fiber/sfp/... geek, so clue bat please
> 
> on my left, i have a delta 9020SL running arcos, female 40g qsfp
> 
> on my right, i have incoming 10g 1310nm single mode from the seattle
> internet exchange.  it is currently into a redstone 10g sfp
> 
> NAMEVALUE
> -
> SwPort  1
> Status  PRESENT
> Valid   True
> Vendor  FiberStore
> Model   SFP-10GLR-31
> Serial-Number   G1804021292
> TypeSFP
> Module-Type 10G_BASE_SX
> Media-Type  FIBER
> Module-Capability   F_10G
> Length  255
> Length-Description
> 
> which i am swapping out for the delta 9020
> 
> so i am look at something such as https://www.fs.com/products/30900.html 
> <https://www.fs.com/products/30900.html>
> except i do not understand active/passive, AOC1M, etc
> 
> thanks in advance
> 
> randy

Re: breakout

[Matt Erculiani]

I think you're looking for an MTP breakout cable, rather than a QSFP28
breakout.

The MTP breakout requires separate optics, whereas the active breakout can
plug directly into a device's SFP+ ports.

Something like...

https://www.fs.com/products/24422.html
And
https://www.fs.com/products/41426.html

You'll also need to tell your device to break out it's 40 g into the
component 10g channels. Then they'll each get a distinct port number.
(Usually just a number appended to the parent port)

-Matt

On Wed, Jan 8, 2020, 12:10 Randy Bush  wrote:

> i am not a fiber/sfp/... geek, so clue bat please
>
> on my left, i have a delta 9020SL running arcos, female 40g qsfp
>
> on my right, i have incoming 10g 1310nm single mode from the seattle
> internet exchange.  it is currently into a redstone 10g sfp
>
> NAMEVALUE
> -
> SwPort  1
> Status  PRESENT
> Valid   True
> Vendor  FiberStore
> Model   SFP-10GLR-31
> Serial-Number   G1804021292
> TypeSFP
> Module-Type 10G_BASE_SX
> Media-Type  FIBER
> Module-Capability   F_10G
> Length  255
> Length-Description
>
> which i am swapping out for the delta 9020
>
> so i am look at something such as https://www.fs.com/products/30900.html
> except i do not understand active/passive, AOC1M, etc
>
> thanks in advance
>
> randy
>

RE: breakout

[Luke Guillory]

You'd need something like this, which you can jumper over to the 10G port. 


https://www.fs.com/products/37016.html

Cable to break it out. 

https://www.fs.com/products/68048.html



Luke



Ns






-Original Message-
From: NANOG  On Behalf Of Randy Bush
Sent: Wednesday, January 08, 2020 1:10 PM
To: North American Network Operators' Group 
Subject: breakout

*External Email: Use Caution*

i am not a fiber/sfp/... geek, so clue bat please

on my left, i have a delta 9020SL running arcos, female 40g qsfp

on my right, i have incoming 10g 1310nm single mode from the seattle internet 
exchange.  it is currently into a redstone 10g sfp

NAMEVALUE
-
SwPort  1
Status  PRESENT
Valid   True
Vendor  FiberStore
Model   SFP-10GLR-31
Serial-Number   G1804021292
TypeSFP
Module-Type 10G_BASE_SX
Media-Type  FIBER
Module-Capability   F_10G
Length  255
Length-Description

which i am swapping out for the delta 9020

so i am look at something such as https://www.fs.com/products/30900.html
except i do not understand active/passive, AOC1M, etc

thanks in advance

randy

Re: breakout

[Ben Cannon]

AOC stands for Active Optical Cable, which means it’s really 4 SFP+ and a qsfp 
plus intermediate fiber all permanently attached.   1M is the length, 1 meter.

This is distinct from DAC (Direct Attach Cable) which is all copper (you don’t 
want these, fiber for one thing isolates ground/emi)

This cable won’t work for you without an intermediate switch (bad) because they 
both end in male SFP plug interface.

However, if you just need to use 10g of the 40g port, you can do it much 
cheaper and easier with just this part:

https://www.fs.com/products/72582.html

-Ben Cannon
CEO 6x7 Networks & 6x7 Telecom, LLC 
b...@6by7.net 




> On Jan 8, 2020, at 11:09 AM, Randy Bush  wrote:
> 
> i am not a fiber/sfp/... geek, so clue bat please
> 
> on my left, i have a delta 9020SL running arcos, female 40g qsfp
> 
> on my right, i have incoming 10g 1310nm single mode from the seattle
> internet exchange.  it is currently into a redstone 10g sfp
> 
>NAMEVALUE
>-
>SwPort  1
>Status  PRESENT
>Valid   True
>Vendor  FiberStore
>Model   SFP-10GLR-31
>Serial-Number   G1804021292
>TypeSFP
>Module-Type 10G_BASE_SX
>Media-Type  FIBER
>Module-Capability   F_10G
>Length  255
>Length-Description
> 
> which i am swapping out for the delta 9020
> 
> so i am look at something such as https://www.fs.com/products/30900.html
> except i do not understand active/passive, AOC1M, etc
> 
> thanks in advance
> 
> randy

breakout

[Randy Bush]

i am not a fiber/sfp/... geek, so clue bat please

on my left, i have a delta 9020SL running arcos, female 40g qsfp

on my right, i have incoming 10g 1310nm single mode from the seattle
internet exchange.  it is currently into a redstone 10g sfp

NAMEVALUE
-
SwPort  1
Status  PRESENT
Valid   True
Vendor  FiberStore
Model   SFP-10GLR-31
Serial-Number   G1804021292
TypeSFP
Module-Type 10G_BASE_SX
Media-Type  FIBER
Module-Capability   F_10G
Length  255
Length-Description

which i am swapping out for the delta 9020

so i am look at something such as https://www.fs.com/products/30900.html
except i do not understand active/passive, AOC1M, etc

thanks in advance

randy

Re: Patch panel solutions for 4x10GE breakout

[krux]

The Corning Edge stuff is nice.  Very modular, so you can customize it for
your needs.  And from my experience, it's proven to be designed well.
Makes it easy to slide individual trays out to work on.  And the built in
shutters on the LC connectors instead of the dust caps are a nice touch,
since no one remembers to put the dust caps back.

On Thu, May 5, 2016 at 7:59 AM, Shawn Morris  wrote:

> It's the Corning Edge8 line [
>
> https://www.corning.com/worldwide/en/products/communication-networks/applications/data-center/edge8.html
> ]
>
> On Thu, May 5, 2016 at 9:45 AM, Jared Mauch  wrote:
>
> > There is a nice Corning panel our facilities team is using now. I can
> find
> > the link and send it to the list when not at my phone.
> >
> > Jared Mauch
> >
> > > On May 5, 2016, at 10:28 AM, Phil Bedard 
> wrote:
> > >
> > > So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE
> > breakouts to deliver 10G.  We are not wiring these up to things in the
> same
> > rack, they will be going to patch panels and then elsewhere in a
> facility.
> > It could potentially get messy with the panels we have today so we are
> > looking at other solutions.  These are all SM LR connections using LC.
> > There are a lot of SM MTP to LC options since that’s the way most panels
> > are wired, but they typically have 6 duplex LC connectors per MTP and
> not 4
> > which isn’t very efficient in this use case.  I’ve seen others just use
> an
> > intermediate LC to LC panel and just wire the breakouts to those and then
> > jumper the other side elsewhere.
> > >
> > > Anything else others have used?  The point of the solution is to keep
> > the wiring mess in front of or near the device to a minimum.
> > >
> > > Thanks,
> > >
> > > Phil
> > >
> >
> >
>



-- 
perl -e 's++=END;++y(;-P)}\n?k++=;<+xru}?print:??;'

Re: Patch panel solutions for 4x10GE breakout

[Spencer Ryan]

We generally run a MTP/MPO12 cable to a breakout cassette a few racks down,
and that's where we split out all of the LC pairs. It keeps the mess away
from the routers/traffic generators.


*Spencer Ryan* | Senior Systems Administrator | sr...@arbor.net
*Arbor Networks*
+1.734.794.5033 (d) | +1.734.846.2053 (m)
www.arbornetworks.com

On Thu, May 5, 2016 at 10:28 AM, Phil Bedard <bedard.p...@gmail.com> wrote:

> So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE
> breakouts to deliver 10G.  We are not wiring these up to things in the same
> rack, they will be going to patch panels and then elsewhere in a facility.
> It could potentially get messy with the panels we have today so we are
> looking at other solutions.  These are all SM LR connections using LC.
> There are a lot of SM MTP to LC options since that’s the way most panels
> are wired, but they typically have 6 duplex LC connectors per MTP and not 4
> which isn’t very efficient in this use case.  I’ve seen others just use an
> intermediate LC to LC panel and just wire the breakouts to those and then
> jumper the other side elsewhere.
>
> Anything else others have used?  The point of the solution is to keep the
> wiring mess in front of or near the device to a minimum.
>
> Thanks,
>
> Phil
>
>
>

Re: Patch panel solutions for 4x10GE breakout

[Shawn Morris]

It's the Corning Edge8 line [
https://www.corning.com/worldwide/en/products/communication-networks/applications/data-center/edge8.html
]

On Thu, May 5, 2016 at 9:45 AM, Jared Mauch  wrote:

> There is a nice Corning panel our facilities team is using now. I can find
> the link and send it to the list when not at my phone.
>
> Jared Mauch
>
> > On May 5, 2016, at 10:28 AM, Phil Bedard  wrote:
> >
> > So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE
> breakouts to deliver 10G.  We are not wiring these up to things in the same
> rack, they will be going to patch panels and then elsewhere in a facility.
> It could potentially get messy with the panels we have today so we are
> looking at other solutions.  These are all SM LR connections using LC.
> There are a lot of SM MTP to LC options since that’s the way most panels
> are wired, but they typically have 6 duplex LC connectors per MTP and not 4
> which isn’t very efficient in this use case.  I’ve seen others just use an
> intermediate LC to LC panel and just wire the breakouts to those and then
> jumper the other side elsewhere.
> >
> > Anything else others have used?  The point of the solution is to keep
> the wiring mess in front of or near the device to a minimum.
> >
> > Thanks,
> >
> > Phil
> >
>
>

RE: Patch panel solutions for 4x10GE breakout

[Jameson, Daniel]

Might be worth having a look at the Corning centrix modules.  Very high 
densities. 72 terminations  per u. Front side mpo/mtp connections.  Have some 
great slack storage and management options.


From: NANOG on behalf of Phil Bedard
Sent: Thursday, May 05, 2016 9:28:55 AM
To: nanog@nanog.org
Subject: Patch panel solutions for 4x10GE breakout

So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE breakouts 
to deliver 10G.  We are not wiring these up to things in the same rack, they 
will be going to patch panels and then elsewhere in a facility.  It could 
potentially get messy with the panels we have today so we are looking at other 
solutions.  These are all SM LR connections using LC.  There are a lot of SM 
MTP to LC options since that’s the way most panels are wired, but they 
typically have 6 duplex LC connectors per MTP and not 4 which isn’t very 
efficient in this use case.  I’ve seen others just use an intermediate LC to LC 
panel and just wire the breakouts to those and then jumper the other side 
elsewhere.

Anything else others have used?  The point of the solution is to keep the 
wiring mess in front of or near the device to a minimum.

Thanks,

Phil

Re: Patch panel solutions for 4x10GE breakout

[Jared Mauch]

There is a nice Corning panel our facilities team is using now. I can find the 
link and send it to the list when not at my phone. 

Jared Mauch

> On May 5, 2016, at 10:28 AM, Phil Bedard  wrote:
> 
> So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE breakouts 
> to deliver 10G.  We are not wiring these up to things in the same rack, they 
> will be going to patch panels and then elsewhere in a facility.  It could 
> potentially get messy with the panels we have today so we are looking at 
> other solutions.  These are all SM LR connections using LC.  There are a lot 
> of SM MTP to LC options since that’s the way most panels are wired, but they 
> typically have 6 duplex LC connectors per MTP and not 4 which isn’t very 
> efficient in this use case.  I’ve seen others just use an intermediate LC to 
> LC panel and just wire the breakouts to those and then jumper the other side 
> elsewhere.  
> 
> Anything else others have used?  The point of the solution is to keep the 
> wiring mess in front of or near the device to a minimum.  
> 
> Thanks, 
> 
> Phil  
> 

Patch panel solutions for 4x10GE breakout

[Phil Bedard]

So the newer equipment we are looking at uses QSFP+/MTP with 4x10GE breakouts 
to deliver 10G.  We are not wiring these up to things in the same rack, they 
will be going to patch panels and then elsewhere in a facility.  It could 
potentially get messy with the panels we have today so we are looking at other 
solutions.  These are all SM LR connections using LC.  There are a lot of SM 
MTP to LC options since that’s the way most panels are wired, but they 
typically have 6 duplex LC connectors per MTP and not 4 which isn’t very 
efficient in this use case.  I’ve seen others just use an intermediate LC to LC 
panel and just wire the breakouts to those and then jumper the other side 
elsewhere.  

Anything else others have used?  The point of the solution is to keep the 
wiring mess in front of or near the device to a minimum.  

Thanks, 

Phil  

QSFP 40G breakout cable

[Luan Nguyen]

Hi folks,
Anyone from the northern VA area has a couple extra of these? I'd like to
borrow for a couple days to see if they work in other vendors' equipment?
Believe it or not, Cisco' s one is much cheaper.

Thanks!

rg/lmn