... . The Catalyst 2960 Series offers integrated security, including network admission control (NAC), advanced quality of service (QoS), and resiliency to deliver ... 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802 ...