Features of the AT-9000/24 * Non blocking architecture * Wire-speed performance * Rapid Spanning Tree * RADIUS * Four priority queues per port * VLAN tagging * Port Mirroring * Link Aggregation -LACP* Layer 2switch with 24-10/100/1000Base-T ports plus 4 active SFP slots (unpopulated) 9000 Series - Layer 2 Gigabit Ethernet Switches