Switch Type: Rackmount Standards: IEEE 802.3,IEEE 802.3u,IEEE 802.3ab,IEEE 802.3x IEEE 802.1Q Static VLAN (Up to 512) IEEE 802.1p Class of Service (CoS) IEEE 802.3ad Link Aggregation Control Protocol (LACP) IEEE 802.1D Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree IEEE 802.1s Multiple Spanning Tree IEEE 802.1x Port Access Authentication Network Management Type: Managed Jumbo Frames: Yes Ports: 48 x RJ45, 4 x SFP, 1 x RS-232 MAC Address Table: 16K Buffer Memory: 122 KB embedded memory per port Switching Method: Store and Forward