| Feature/Change | Description |
| 28.39.2048 | |
| FEC Configuration | Changed the default FEC configuration for the “Protocol Aware” and “Active DME Modules” (ETH cables). For the list of cable identifiers, see tables below. |
| Bug Fixes | See Bug Fixes in this Firmware Version section. |
| Byte 192 of Page 0 for sff cables | Name | Auto Detect FEC | Current Default FEC | Previous Default FEC | P/N - Example of one module |
| 0x1A | 100GBase DWDM2 | No | NO FEC | RS FEC | |
| 0x21 | 100G BIDI PAM4 | No | NO FEC | RS FEC | SFBR-89BDDZ-CS4 |
| 0x25 | 100GBASE-DR | No | NO FEC | RS FEC | MMS1V70-CM |
| 0x26 | 100GBASE-FR | No | NO FEC | RS FEC | QSFP28-FR-C |
| 0x27 | 100GBASE-LR | No | NO FEC | RS FEC | SPTSBP4LLCDF |
Protocol Aware ETH Cables
| Byte 192 of Page 0 for sff cables | Name | Auto Detect FEC | Current Default FEC | Previous Default FEC | P/N - Example of one module |
| 0x1 | 100G AOC / 25GAUI C2M AOC | Yes | RS FEC | RS FEC | |
| 0x2 | 100GBASE-SR4 / 25GBASE-SR | Yes | RS FEC | RS FEC | MMA2P00-AS |
| 0x3 | 100GBASE-LR4 | Yes | NO FEC | RS FEC | MMA1L10-CR |
| 0x3 | 25GBASE-LR | Yes | RS FEC | FC FEC | MMA2L20-AR |
| 0x4 | 100GBASE-ER4 | Yes | NO FEC | RS FEC | SPQCEERCDFLM Source Photonics |
| 0x5 | 100GBASE-SR10 | Yes | NO FEC | RS FEC | |
| 0x6 | 100G CWDM4 MSA with FEC | Yes | RS FEC | RS FEC | MMA1L30-CM |
| 0x7 | 100G PSM4 Parallel SMF | Yes | RS FEC | RS FEC | MMS1C10-CM |
| 0x8 | 100G ACC / 25GAUI C2M ACC | Yes | RS FEC | RS FEC | |
| 0x9 | 100G CWDM4 MSA without FEC | Yes | NO FEC | RS FEC | LQ210CR-CPA2 |
| 0x17 | 100G CLR4 | Yes | RS FEC | RS FEC | |
| 0x18 | 100G AOC | Yes | NO FEC | RS FEC | MFA1A00-C010 |
| 0x19 | 100G ACC | Yes | NO FEC | RS FEC | |
| 0x20 | 100G SWDM4 | Yes | RS FEC | RS FEC | FTLC9152RGPL |
| 0x22 / 0x23 / 0x24 | 4WDM-10 MSA / 4WDM-20 MSA / 4WDM-40 MSA | Yes | RS FEC | RS FEC |
Active DME Modules ETH Cables
To configure FEC or Speed that is different than the default, you must configure both sides.
The following are examples of when FEC detection capability is available:
when a 25G SFP module is connected to card, it will support FEC detection in 25G
when a 100G QSFP module is connected to a card, it will support FEC detection in 100G, but not in 50G or 25G