Solved: Cisco 3900 Router and SFP Modules

DAVID RICHWALSKI · ‎04-03-2023

I have a Cisco 3925 Router and was kindly given (2) 1g SFP modules for the Router... I plan to use them to feed directly to (2) switches.

- So I know the Media-Type needs to be set, along with the Speed and Duplex.

- What other commands are needed to enable the SFP modules?

balaji.bandi · ‎04-03-2023

its combo ports -

Follow the admin guide - you can use the command - media-type sfp

https://www.cisco.com/c/en/us/td/docs/routers/access/1900/software/configuration/guide/Software_Configuration.pdf

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marce1000 · ‎04-03-2023

- Nothing special , checkout if the SFP(s) are compatible however : https://tmgmatrix.cisco.com/?npid=941&npid=1441

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

balaji.bandi · ‎04-03-2023

its combo ports -

Follow the admin guide - you can use the command - media-type sfp

https://www.cisco.com/c/en/us/td/docs/routers/access/1900/software/configuration/guide/Software_Configuration.pdf

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Joseph W. Doherty · ‎04-05-2023

I'm unsure you must configure speed and duplex as both are implicit (?) once you configure media-type SFP.