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Passive XS+DA0001 DAC between an RB3011 SFP port and a CRS309 SFP+ port only links after limiting advertised speeds
The poster wanted to use a MikroTik XS+DA0001 passive DAC between the 1G SFP port of an RB3011 and an SFP+ port of a CRS309 and asked whether a passive cable can bridge different SFP generations. The RB3011 SFP cage is 1G only while the CRS309 cage is SFP+ (10G), and a passive DAC has no active…
