IEEE 802.3 10Base T IEEE 802.3u 100Base TX IEEE 802.3ab 1000Base T IEEE 802.3z 1000 Base X IEEE 802.3ae 10G Base SR/LR IEEE 802.3x Flow Control IEEE 802.1q VLAN IEEE 802.1p Class of Service IEEE 802.1d Spanning Tree IEEE 802.1w Rapid Spanning Tree IEEE 802.1s Multiple Spanning Tree G.8032 ERPS Ethernet loop protection switch