VLAN Trunking
Add VLAN header to frame, to communicate over trunk
802.1q
Spanning Tree
No loops using BPDU frames
802.1d -
Port-based Network Access Control (NAC)
No access until you authenticat
802.1x
Rapid Spanning Tree
Better STP
802.1w
PoE
802.3af
PoE+
802.3at
Link Aggregation Protocol (LACP)
Utilize multiple physical links on one logical link
802.3ad