topic Can 25GbE sfp operate on 10Gb ? in ONTAP Hardware

Can 25GbE sfp operate on 10Gb ?

AlexeyF — Wed, 18 May 2022 10:05:57 GMT

I wonder if 25GbE SFP28 ports can operate on 10Gb ?

we have X65404 model transceivers

are there any limitations ?

Thanks

Re: Can 25GbE sfp operate on 10Gb ?

AlexDawson — Wed, 18 May 2022 13:50:07 GMT

Unfortunately not - optical ethernet transceivers are always single rate. Please contact your account team to obtain pricing for appropriate transceivers.

Re: Can 25GbE sfp operate on 10Gb ?

JonathanGaudette — Thu, 19 May 2022 17:12:16 GMT

No, a 25gbit SFP is 25gbit only.

Re: Can 25GbE sfp operate on 10Gb ?

AlexeyF — Fri, 20 May 2022 12:50:04 GMT

Do these ports support RS-FEC ?

Re: Can 25GbE sfp operate on 10Gb ?

andris — Mon, 10 Mar 2025 15:38:05 GMT

Typically, the 25GbE ports on the platform support RS-FEC - usually autonegotiated. You'd have to provide specific platform and NIC/card details to get a 100% answer.

Re: Can 25GbE sfp operate on 10Gb ?

kate365 — Mon, 10 Mar 2025 18:06:08 GMT

Yes most 25GbE SFP28 ports and transceivers including the X65404 model support backward compatibility with 10GbE. However this depends on the switch or NIC firmware and configuration. Check the device documentation to confirm compatibility and required settings.

Re: Can 25GbE sfp operate on 10Gb ?

andris — Mon, 10 Mar 2025 18:41:38 GMT

The NetApp official support statement is that X65404 transceiver is for 25GbE, only.

Re: Can 25GbE sfp operate on 10Gb ?

jhubert — Tue, 07 Apr 2026 23:40:53 GMT

Not accurate - while dual rate SFPs exist, all SFP28's that NetApp currently sells only support a single speed 10Gb or 25Gb.