You're getting it;
Just as you're probably aware that a 40G SR4 can be split into 4 separate 10G SR connections, and a 100G SR4 split into 4 x 25G SR links,
the 400G DR4 (and the eDR4 is just a bit longer reach for 2km) connects to 4 separate FR1 because the split links are of the same technology.
Remember too, eDR4 <==> 4x FR1 are SMF (singlemode Fiber) connections.
We don't YET have a MMF 400G SR8 xcvr... and know that one uses an MPO16 connector (see the Corning Guide for examples of MPO12 vs MPO16 connectors).
That's why I pointed out that FR1 is NOT compatible with 100G LR4; FR1 uses 2 lambdas per fiber, because it's really a 25G frequency, but since it's PAM4, it transmits 2 bits per transition.
BTW: as i mentioned before about not having the 9300 and related interconnects not YET in the XCVR Guide, so too the availability of the new QSFP28 products won't be enabled for the 6400 until we get the CX 10.11 release (ETA Nov).
That Nov CX 10.11 also enables regular QSFP28 product on the 9300; we released the 9300 starting in Aug for only the interconnects listed on the Datasheet. There will be an update to include the 100G QSFP28, and 40G QSFP+ products with 10.11.
------------------------------
Ed Kurata, Aruba Sr. Product Line Manager,
Switching , Transceivers, Accessories, Power, and other things
Roseville CA, USA
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Original Message:
Sent: Oct 13, 2022 03:14 AM
From: Roy Lillqvist
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Hi EdKurata,
Thanks about the clarifications!
Just to double check (since 100GBASE-FR1 is a new module/standard to me):
Found this when searching info regarding 100GBASE-FR1:
"Transceivers using this specification use 100G PAM4 signaling at 100G per wavelength"
You presented use case where 100GBASE-FR1 is used with 400G splitter,
and mentioned "The FR1 is NOT the same as a 100G LR4 nor a CWDM4 optic -- they use different wavelengths and 'channels'."
But for sure these modules can be use to form "normal" 100G link "100GBASE-FR1 <-> 100GBASE-FR1"?
(just to make it sure before ordering items :-))
-Roy
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Roy Lillqvist | ACSX #1421 | CCIE(RS) #38597
Original Message:
Sent: Oct 12, 2022 01:49 PM
From: Ed Kurata
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
As I had said in my original announcement of Edition 12 of the XCVR Guide,
"(BTW: the new 9300-32D switch and new 400G xcvrs and AOCs and 200G AOCs will be covered in the upcoming Edition 13 -- ETA End of October, 2022)"
And the FR1 100G 2km QSFP28 xcvr will also be covered there, and noted that it is supported in the 8325, 8360 and 6400 series QSFP28 ports.
FR1 is an optical technology that over SMF can connect up to 2km.
For the 9300, when a eDR4 QSFP56-DD xcvr is OPTICALLY split into 4xLC connections (SMF again), each of those links connect to an FR1.
The FR1 is NOT the same as a 100G LR4 nor a CWDM4 optic -- they use different wavelengths and 'channels'.
This picture should move this conversation forward a bit.
More will be disclosed in Edition 13 of the guide.
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Ed Kurata, Aruba Sr. Product Line Manager,
Switching , Transceivers, Accessories, Power, and other things
Roseville CA, USA
Original Message:
Sent: Oct 12, 2022 10:08 AM
From: Davide Poletto
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Well consider that HPE/Aruba QuickSpecs are generally updated frequently and are very Switch specific while the Aruba Transceivers/DACs Guide has a longer update release cycle (on the other hand, it contains a lot of information about a multitude of Switch series so the mass of information provided is quite different comparted to QuickSpecs)...but, I agree with you, QuickSpecs should be the (or at least "a") primary source of reference to understand what is currently supported and what is not.
Original Message:
Sent: Oct 12, 2022 09:50 AM
From: Roy Lillqvist
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Thanks parnassus!
I have used to check the suitability from the Transceiver guide, but now it seems that the guide is updated with a delay/is not complete(?)
Better to start checking supported transceivers also from QuickSpecs :-)
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Roy Lillqvist | ACSX #1421 | CCIE(RS) #38597
Original Message:
Sent: Oct 12, 2022 09:01 AM
From: Davide Poletto
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
It is also mentioned inside the Corning 400G Cabling for Aruba QSFP-DD Reference Guide (LAN-2991-AEN of June 2022) which, again, seems tied specifically to the new Aruba CX 9300.
But...looking at latest Aruba CX 8360 QuickSpecs (Edition 12 03-10-2022) the R9B63A is listed among available options...and it means it is supported, maybe you just need to wait for an updated edition of the Aruba Transceivers and DACs Guide to see it finally mentioned.
Looking better, other than with Aruba CX 9300 and Aruba CX 8360, it is referenced also on Aruba CX 10000, Aruba CX 8360 v2 and Aruba 8325 QuickSpecs.
Original Message:
Sent: Oct 12, 2022 07:34 AM
From: Roy Lillqvist
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Hi parnassus,
Yes, 9300 is the only product I have seen mentioned together with this module.
If I have understood it right, this module is "100GBASE-FR1" (quite new standard)?
Just wondering if there is some reason it should not work with 8360? Or is it simply not mentioned in documents because it is quite new product?
(Compared to other 100G QSFP28 modules, one advantage of R9B63A would be it's price)
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Roy Lillqvist | ACSX #1421 | CCIE(RS) #38597
Original Message:
Sent: Oct 12, 2022 06:35 AM
From: Davide Poletto
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Hi Roy, it seems that R9B63A is mentioned only in relationship with Aruba CX 9300...
Original Message:
Sent: Oct 11, 2022 03:29 AM
From: Roy Lillqvist
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Hi.
Just skimmed through edition 12 documents, but did not manage to find information about module "R9B63A Aruba 100G QSFP28 LC FR1 2km SMF Transceiver" (maybe I just missed it?)
Special interest if this module is supported in 8360?
-Roy
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Roy Lillqvist | ACSX #1421 | CCIE(RS) #38597
Original Message:
Sent: Sep 26, 2022 01:18 AM
From: Ed Kurata
Subject: New ArubaOS CX and Switch Transceiver Guide (Edition 12)
Pleased to announce the publication of the Edition 12 of the ArubaOS CX and AOS-Switch Transceiver Guide.
This is Edition 12, published Sept 2022.
See the chapter titled "Updates to this edition" for a summary of the changes.
Please find the official guide on our asp.arubanetworks.com site, using this link.
(Software and Documents / Switches/ search for "Transceivers")
Avoid searching for this guide on Google, as it will return outdated editions.
This edition covers support up to the AOS-CX 10.10 and 10.09.10xx releases
This Edition now covers the new models of the 6300 introduced on Aug 15, 2022, along with the 50G SR optical xcvrs.
(BTW: the new 9300-32D switch and new 400G xcvrs and AOCs and 200G AOCs will be covered in the upcoming Edition 13 -- ETA End of October, 2022)
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Ed Kurata, Aruba Sr. Product Line Manager,
Switching , Transceivers, Accessories, Power, and other things
Roseville CA, USA
------------------------------