... Ethernet standards,Its standard 19-inch size and intelligent management make it suitable for small, middle and large ... powerful management functions, includes the system, port, network, Spanning Tree protocol, IEEE 802.1x protocol, VLAN, Trunk, IGMP Snooping, SNMP protocol, ... 802.1X Port-Based Network Access Control protocol;l Supports static MAC address table management;l Supports broadcast message ...