[sdnog] 1G SFP into 10G port will it work ?

Manhal Mohammed manhal_muhamed at hotmail.com
Thu Jan 10 17:21:57 SAST 2019

dear sdnog
hope you are doing fine ^_^
i have a server with only 10G ports ,i need one of these ports to be connected to a management switch "1G port"  :/
a good friend advised me to use a 1G SFP in that port "the 10G one" so i can connect to the 1G fiber switch
as far as i know if i connect the 10G server to 1G switch directly ,there will be no negotiation between the tow speeds  "in term of protocols (SFP+ vs SFP)"

so can the 10G port  be down-gradable to 1G speed by installing 1G SFP in it 😄?

if its possible "i think it will theoretically" would someone elaborate why it is possible for the sake of learning ^_^

i didn't try it  and my knowledge is 42% in hardware stuff 😄

with best regards


Manhal Mohammed
System&Storage Engineer
 Khartoum, Sudan

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