Layer 2 feature MAC address table l Up to 16K MAC addresses l Support blackhole MAC addresses l Support setting the maximum number of MAC addresses that can be learned at a port VLAN l Support Port-based VLAN (4k VLANs) l Protocol-based VLAN l Voice VLAN l GVRP l QinQ, Selective QinQ l VLAN Mapping Stack l IRF(DDM, DRR, DLA) Stack l up to 8 units in one stacking group Link aggregation l Support LACP l Support manual Link aggregation l Up to 8 GE or 4 10GE ports in each aggregation group l Up to 32 aggregation groups Mirroring l Many-to-one port mirroring (multiple monitored ports to one monito