Core Overview - 2.0 English

400G IEEE 802.3bs Reed-Solomon Forward Error Correction (PB065)

Document ID
PB065
Release Date
2021-08-06
Version
2.0 English

The 400G IEEE 802.3bs RS-FEC core implements the Reed-Solomon Forward Error Correction (RS-FEC) functions which are part of the 400GBASE-R PCS layer, as described in IEEE 802.3bs and shown shaded in the following figure.

Figure 1. Architectural Position of 400G Ethernet PCS Layer

The 400G IEEE 802.3bs RS-FEC core provides FEC encoding and decoding functions using the FPGA logic fabric. This soft logic implementation is available in all supported device families.