3Com SS3 SWITCH 4200 24PORT 10/100 + 2x10/100/1000

• Affordable wirespeed performance • Stackable 10/100 Layer 2 switches • Scalable to 192 users • Flexible Gigabit uplink connectivity • IEEE 802.1X network log-in security • Plug and play operation Features PERFORMANCE Switching capacity: 8.8Gbps (26-Port), 12.8Gbps (28-Port),13.6Gbps (50-Port) Forwarding rate: 6.6Mpps (26-Port), 9.5Mpps (28-Port)),10.1Mpps (50-Port) Store and forward switching: Latency 2.7 microseconds LAYER 2 SWITCHING MAC addresses: 8K MAC addresses VLAN: 60 VLANs (IEEE 802.1Q) Link aggregation: Manual and LACP Link Aggregation (IEEE 802.3ad). Gigabit ports only Auto negotiation: Auto-negotiation of port speed, duplex, and connection (MDI/MDIX) Traffic control: IEEE 802.3x full-duplex flow control; back pressure flow control for half-duplex; supports Broadcast Storm Suppression Spanning Tree: IEEE 802.1D Spanning Tree Protocol (STP); IEEE 802.1w Rapid Spanning Tree Protocol (RSTP); Backward-compatible with STP; fast-start mode Multicast snooping: Filtering for 128 multicast groups; Internet Group Management Protocol (IGMP) v1 and v2 CONVERGENCE Priority queues: Two hardware queues per port; weighted Round Robin queuing Traffic prioritization: Priority based on IEEE 802.1p Class of Service (CoS) VLAN priority, DiffServ Code Point (DSCP), fault port priority, and auto classification of 3Com NBX® telephony traffic