Hello,
Please I connected 2 dgs-1210-28MP (SFP : DEM-311GT) to a HPE 1920S (SFP J4858D) with 2 FO patch 1m MM OM3
but link status is down in all interfaces.
I tried dlink(SFP : DEM-311GT)-dlink(SFP : DEM-311GT) also down
i tried HP-jl385A (SFP J4858D) with jl381A (SFP J4858D) also down
what is the problem please