... (1:2 or 1:4 or 1:8 or 1:16)Priority features by Port-Based, 802.1p, IP TOS, Diffserv ... (HOL)Port-based VLAN and 802.1Q VLAN. Up to 16 VLAN groups are implemented by full 12 bits VID matchingEasy ... counter for per port RX/TX byte/packet count, 16-bit smart counter for per port ERROR count and Collision count32 ...