07-31-2023 04:49 AM
Hi guys,
The situation is as follow:
2022: We have ordred some C9300L-48P-4X switches. At the time of ordrering the SFP compatibiliy matrix mentionned that this type does not support SFP-LRM.
07-2023: Switches received, when provisionning them, i typed the following command:
I wanted to test it out but i am afraid of some electrical issues on the switches
Thank you in advance,
07-31-2023 05:50 AM - edited 07-31-2023 05:50 AM
This link shows the supported SPF+ types supported on the C9300L. They don't mention anything about LRM support, might work but without any support from Cisco I would not run with it in a production environment.
Optics Compatibility Matrix (cisco.com)
Searching for LRM support on this model there no hits. so if in doubt ask your Cisco account manager, they should be the best to answer
07-31-2023 06:09 AM
Thanks for the reply,
What about the command result i typed, what is your interpretation plz, ?
07-31-2023 07:09 AM
@ramziabdelhak share output of #sh inventory
07-31-2023 07:32 AM
if you omit the include you can see the headers of the columns:
Transceiver Type Cisco p/n min version
supporting DOM
------------------ -------------------------
-> this command aims to determine if DOM is supported for an SFP, not if the SFP is supported in the switch
ALL should mean all hardware versions of this SFP support DOM
but do not completely rely on this output, there have been bugs detected in the past
Cisco Bug: CSCub83549 - show interface transceiver supported-list shows same transceiver twice
so if in doubt contact your account manager
07-31-2023 08:24 AM - edited 07-31-2023 08:25 AM
Thank you pieterh, that helped me a lot. From what i read, DOM is a sort of API "can be accessed in cli" that provides informations about SFP shown in the output of the mentionned command.
For our situtation, and as a workaround, we ordred X2-LRM to sfp-sr adapter to be plugged on the core switch and use sfp-sr on the 9300L.
Thanks again.
Thnks again,
08-01-2023 12:41 AM
here is a post explaining some DOM functionality
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