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April 21st, 2021 09:00
S4148T-ON QSFP+ & QSFP28 ports.
Hi,
I am looking for clarification that I can 100% use the 4 x 100 GbE QSFP28 ports AND the 2 x 40 GbE QSFP+ ports on a S4148T-ON switch at the same time?
Would be looking to interconnect a pair of S4148T-ON's via the 4 x QSFP28 as a VLT/MCLAG link and use the 2 x QSFP+ on each S4148T-ON as the uplinks to my core infrastructure.
I cannot see any restrictions/caveats on combined QSFP+ & QSFP28 port usage in the documentation. The Dell EMC PowerSwitch S4100-ON Specifications states "The compact S4100-ON models provide industry-leading density with up to 48 ports of 10GbE or up to 48 ports of 10GBaseT ports, 2 ports of 40GbE and 4 ports of 100GbE in a 1RU form factor.".
I am trying to configure this in FDC however and it is not allowing the config. I am hoping the FDC validation rules are wrong.
Has anyone tried/done this?
Thanks
M
mc1903
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April 22nd, 2021 12:00
Thanks again @DELL-Josh Cr
After some searching I hit upon the keyword "port-profiles", which led me to https://www.dell.com/support/kbdoc/en-uk/000128061/dell-emc-networking-os10-s4148f-s4148t-s4148fe-ports-eth-1-1-27-and-1-1-28-missing-in-the-default-port-profile<ADMIN NOTE: Broken link has been removed from this post by Dell>. which confirms the 6 port profiles the S4148T can assume.
The OS10 Enterprise Edition User Guide explains the port-profiles in a much clearer way.
So glad I asked the question now.
After working in this industry for over 30 years, I have zero faith in vendor sales people doing much more than badly processing a quote request.
Cheers for your help.
M
(edited)
DELL-Josh Cr
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April 21st, 2021 14:00
Hi M,
I do not believe it is officially supported. The validated configurations that I have found are:
S4148T-ON
48 x 10GT + 4 x 100G
48 x 10GT + 6 x 40G
48 x 10GT + 8 x 50G
48 x 10GT + 16 x 25G
48 x 10GT + 24 x 10G SFP+
So, it doesn’t look like it supports mixing two of the faster than 10Gb speeds. Let us know if you have any additional questions.
mc1903
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April 22nd, 2021 06:00
Thanks @DELL-Josh Cr
Where did you find the validated configuration information referenced? Is it a public or partner document that you can share a link to?
If it's correct, I truly dislike the marketing spin used in this Dell EMC PowerSwitch S4100-ON Spec Sheet.
"The compact S4100-ON models provide industry-leading density with up to 48 ports of 10GbE or up to 48 ports of 10GBaseT ports, 2 ports of 40GbE and 4 ports of 100GbE in a 1RU form factor."
should more actually read:
"The compact S4100-ON models provide industry-leading density with up to 48 ports of 10GbE or up to 48 ports of 10GBaseT ports and a combination of up to 2 ports of 40GbE and/or up to 4 ports of 100GbE in a 1RU form factor."
Cheers
M
DELL-Josh Cr
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April 22nd, 2021 09:00
Unfortunately, I have not been able to find it in any public documentation. If you have a sales team they would be the best ones to contact to get the phrasing of the document changed.
DELL-Josh Cr
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April 22nd, 2021 12:00
Thanks, good to know that it is in the manual even though it is not easy to find. Let us know if you have any other questions.