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2011UiAS-2HnD and SFP S-31DLC20D link problem

Fri Sep 06, 2019 1:04 am

Hi freinds,

I have a RB2011UiAS-2HnD router (6.45.5) that connects with a sfp module S-31DLC20D to the internet provider.
In auto negotiation mode, the link can't be established but setting it manually to 1000M full the link goes up.
Unfortunately, no RX packets are received.

I tried the same sfp module and cables on a two different CRS326-24G-2S+RM where all worked fine, including the auto negotiation.
TX and RX levels of the sfp module are almost equal in all three setups.

Is there any compatibility issue with the RB2011 that I'm not aware? According to Mikrotik shouldn't be a problem.

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