来自IEEE Xplore官网，IEEE Std 802.3ca-2020 (Amendment to IEEE Std 802.3-2018 as amended by IEEE 802.3cb-2018, IEEE 802.3bt-2018, IEEE 802.3cd-2018, IEEE 802.3cn-2019, IEEE 802.3cg-2019, IEEE 802.3cq-2020, IEEE 802.3cm-2020, and IEEE 802.3ch-2020)