This thread started in 2020, and as Davide Poletto had said " things have changed".
The 655874-B21 (yes, an HPE Server division product, not an HPE Aruba part) is indeed supported in select switches and ports.
As documented in the AOS-S and AOS-CX Transceiver Guide, (Edition 13, page 46-47)
Page 47 lists the switches where this is supported.
This is a QSA28, meaning it's supported in QSFP28(100G) ports and QSFP+(40G). Please take note of the highlighted paragraph I've noted in the screen grab.
Also, the link I provided assumes you have a Login to the ASP (Aruba Support Portal) -- as of Aug 18, 2023 a registered account and login is required to download documentation and software.
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Ed Kurata, Aruba Sr. Product Line Manager,
Switching , Transceivers, Accessories, Power, and other things
Roseville CA, USA
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Original Message:
Sent: Sep 21, 2021 07:55 PM
From: parnassus
Subject: HPE QSFP/SFP+ Adaptor Kit Compatible SFP+ Transceiver
Hi Eugene, during last 19 months things have changed...and the Aruba 8320 (40G model like the JL579A) currently supports QSFP+ DAC/Fiber Breakout cables (QSFP+ to 4xSFP+) with these SKUs:
- DAC Breakout 721064-B21
- AOC Breakout 721076-B21 (where AOC= Active Optical Cable)
With latest ArubaOS-CX 10.07 and 10.08 software builds theoretically the above breakout cables should be properly recognized by the switch.
AFAIK the 655874-B21 (an HPE QSFP+ to SFP+ adapter) is not supported.
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Davide Poletto
Original Message:
Sent: Sep 20, 2021 01:55 PM
From: Eugene Grutman
Subject: HPE QSFP/SFP+ Adaptor Kit Compatible SFP+ Transceiver
Any chance the Aruba 8320 supports the 655874-B21 now with the allow unsupported transceiver command?
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Eugene Grutman
Original Message:
Sent: Feb 24, 2020 06:47 PM
From: Davide Poletto
Subject: HPE QSFP/SFP+ Adaptor Kit Compatible SFP+ Transceiver
IMHO Aruba 8320 Switch series doesn't support any QSFP+ to SFP+ splitting cable...no breakthrough (no 40Gbps into 4x10Gbps interfaces).