Tool/software:
Texas Instruments has a wide range of signal conditioning devices for Ethernet.
Sometimes we receive questions regarding a signal conditioning device's ability to support Base-T Ethernet. The majority of TI's Ethernet signal conditioning portfolio only supports NRZ signaling. The exception to this (at the time of writing) are the DS560xxxxx devices, which support NRZ and PAM4 signaling.
Base-T Ethernet uses different signaling levels than those supported by TI's Ethernet signal conditioning devices. The devices below are unable to support signal conditioning for Base-T Ethernet protocols such as 1GBase-T, 2.5GBase-T, and 10GBase-T.
Please see TI's Ethernet Signal Conditioning portfolio to review support for other Ethernet protocols.
https://www.ti.com/interface/ethernet/retimers-redrivers-mux-buffers/overview.html