zakhar
Newbie level 6
Hi,
I have implemented two Ethernet links using Xilinx's 1G Tri Mode Ethernet MAC and 1G Ethernet PCS/PMA cores on a Kintex-7 FPGA. The board on which I have implemented the design has two SFP cages on one quad.
The links work fine when I connect them to an Ethernet switch via copper SFP modules. However, when I use optical SFP modules, the links of the switch does not come up. Actually, the LED of the switch that indicates an active link is turned on every 3 seconds for a very short time and then is turned off.
When I connect a port of the switch to its another port using the same optical SFP modules, the switch links come up. So, the problem is not due to the switch configurations and the SFP modules.
Could you please help me to resolve this strange problem? As far as I know, the type of SFP transceiver must not be important!
I have implemented two Ethernet links using Xilinx's 1G Tri Mode Ethernet MAC and 1G Ethernet PCS/PMA cores on a Kintex-7 FPGA. The board on which I have implemented the design has two SFP cages on one quad.
The links work fine when I connect them to an Ethernet switch via copper SFP modules. However, when I use optical SFP modules, the links of the switch does not come up. Actually, the LED of the switch that indicates an active link is turned on every 3 seconds for a very short time and then is turned off.
When I connect a port of the switch to its another port using the same optical SFP modules, the switch links come up. So, the problem is not due to the switch configurations and the SFP modules.
Could you please help me to resolve this strange problem? As far as I know, the type of SFP transceiver must not be important!