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April 8th, 2025 13:25
C6620 SFP28 | Cisco SFP+
We have a PowerEdge C6620 with a 1x Intel E810-XXVDA4 Quad Port 10/25GbE SFP28 Adapter, OCP NIC 3.0 using Dell 10/25Gb Transceivers connected to a Cisco 9300 using Cisco 10Gb SFP+ Transceivers.
I am unable to configure the system to allow the Layer 1 to come up during boot. I can get the ports to light if I configure ESXI to 10Gb/Full once in the O/S.
Further I can get the ports to light if I swap the Dell Transceiver for a Cisco Transceiver, the port then comes up during boot.
Setting the switch interface to no auto negotiate and 10Gb/Full does not work. The Cisco debug logs do not show anything when connecting and disconnecting the fibre cable when we have the Dell SFP28 and Cisco SFP+ connected.
I cant see any way to hard code the 4 SFP28 ports in the BIOS, the workaround of configuring in the OS is not perfect. Not sure if there are any tricks to get this working?
DELL-Charles R
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April 8th, 2025 18:46
Hello,
I have not seen this issue. Was the OCP installed and working at a previous time? If so was there anything done on the server when this issue started?
Can you confirm the system firmware is up to date: CPLD, BIOS and iDRAC?
Can you post images of the Dell transceivers and the OCP with the stickers visible?
Also the Cisco transceiver would be good.
A couple initial things you could try, and probably already have, is Drain the flea power and check results after.
And Clearing the NVRAM and check results after. You may need to set back up any custom BIOS changes you have.
drain flea power (shut down, disconnect power cables and Network cables, hold in power button 20 seconds with cords removed).
After flea power drain, system has to set for 3 minutes for DRAC to reset without any power plugged in.
Then plug in NIC and power but wait 2 minutes before power on to give DRAC time to initialize.
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Clear NVRAM - there is a map under the lid to show the jumper location. Shut down, Set jumper to the Clear position, power on and Post up to the jumper error, shut down and return jumper to original location.
jrh2025
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April 8th, 2025 18:53
@DELL-Charles R Thanks for your kind reply. Indeed, this equipment is all brand new. We have found a configuration in BIOS to disable 1Gb on the OCP NIC which seems to have helped, only leaving 10Gb and 25Gb as an option (which is all the SFP28 can support).
A very frustrating day, but glad I purchased genuine Dell and Cisco SFP as they would otherwise have been first thing to blame :)
Fingers crossed for stability overnight.