We used OSFP SR4 on the CX7 adapter to connect to the QM9790 switch, but the FEC showed differently.
- N/A is displayed On adapter
- Standard_RS-FEC - (544,514) displayed on switch port
I have tried to upgrade the latest firmware or replace the optical module，still the same .
Then I installed another HCA and found that FEC displayed normally and his firmware was factory default.（FW version 28.38.1900 ） But when I upgraded it (FW version 28.43.1014 ), the FEC showed N/A
################ adapter
Operational Info
State : Active
Physical state : Disabled
Speed : IB-NDR
Width : 4x
FEC : N/A
Loopback Mode : No Loopback
Auto Negotiation : ON
Supported Info
Enabled Link Speed : 0x00000080 (NDR)
Supported Cable Speed : 0x00000080 (NDR)
Troubleshooting Info
Status Opcode : 0
Group Opcode : N/A
Recommendation : No issue was observed
Tool Information
Firmware Version : 28.43.1014
amBER Version : 3.3
MFT Version : mft 4.29.0-131
##############switch
Operational Info
State : Active
Physical state : Disabled
Speed : IB-NDR
Width : 4x
FEC : Standard_RS-FEC - (544,514)
Loopback Mode : No Loopback
Auto Negotiation : ON
Supported Info
Enabled Link Speed : 0x00000080 (NDR)
Supported Cable Speed : 0x00000080 (NDR)
Troubleshooting Info
Status Opcode : 0
Group Opcode : N/A
Recommendation : No issue was observed
Tool Information
Firmware Version : 31.2012.4036
amBER Version : 3.3
MFT Version : mft 4.29.0-131
The same adapter and switch in our factory on different server shows normal like this
Operational Info
State : Active
Physical state : Disabled
Speed : IB-NDR
Width : 4x
FEC : Ethernet_Consortium_LL_50G_RS_FEC_PLR -(272,257+1)
Loopback Mode : No Loopback
Auto Negotiation : ON