Hi all.
I have been unable to get my CRS510-8XS-2XQ to switch traffic between two devices. I am running ROS 7.15.
I have two devices hanging off of it (A and B). Device A connects via a 100G Mikrotik DAC on QSFP28-1 which is confirmed to receive traffic (i.e. ICMP packets originating from A are being received at the Mikrotik port). Then I have another device B hanging on SFP28-1 which is confirmed to receive the (internal) traffic forwarded by QSFP28-1. However, the traffic is never delivered external to endpoint B. TX packets is 0. The SFP I’m currently using is a 10Gtek ASF-GE-T which, theoretically, should work. I have disabled auto-neg and set the speed to 1G baseT. (I’ve also tried 1G baseX and auto-negotiation as well just to make sure.) I recently upgraded to 7.15 because I was encountering a TX-fault indicator which 7.15 has corrected.
All ports are members of the same default bridge (I’ve tried creating a new bridge, to no use). This is about as vanilla a setup as it comes. The 1GbE network card on my endpoint B is supposedly working (green link light). The link on the Mikrotik is lit as well. I’ve swapped SFPs (two different brands), ports, cables.
I must be missing something fundamental here. I was under the impression that SFP28 ports on the Mikrotik were capable of operating at 1G with an SFP when explicitly configured as such.