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Questions tagged “rb4011”

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RB4011 SFP+ port does not link with a passive S+DA0001 DAC: only active cables (S+AO0005) are supported

A MikroTik RB4011 connected with an S+DA0001 DAC to a CRS106-1C-5S and a CRS112-8G-IN (all default configuration apart from IP addresses) had no connectivity over the SFP link. The RB4011 SFP+ cage is documented to accept onyl active direct-attach cables, so a passive twinax between it and the two…