D-Link DES-3250TG User Manual

The DES-3250TG Switch was designed for easy installation and high performance in an environment where traffic on the 
network and the number of users increase continuously.  

Switch features include: 

•  Store and forward switching scheme. 

•  Full and half-duplex for both 10Mbps and 100Mbps connections. The front-port Gigabit Ethernet module operates at 

full duplex only. Full duplex allows the switch port to simultaneously transmit and receive data, and only works with 
connections to full-duplex capable end stations and switches. Connections to hubs must take place at half-duplex. 

•  Auto-polarity detection and correction of incorrect polarity on the transmit and receive twisted-pair at each port. 

•  IEEE 802.3z compliant for Mini GBIC ports (optional module). 

•  IEEE 802.3ab compliant for 1000BASE-T (Copper) Gigabit ports (optional module). 

•  Data forwarding rate 14,880 pps per port at 100% of wire-speed for 10Mbps speed. 

•  Data forwarding rate 148,800 pps per port at 100% of wire-speed for 100Mbps speed. 

•  Data filtering rate eliminates all error packets, runts, etc. at 14,880 pps per port at 100% of wire-speed for 10Mbps 

speed. 

•  Data filtering rate eliminates all error packets, runts, etc. at 148,800 pps per port at 100% of wire-speed for 100Mbps 

speed. 

•  8K active MAC address entry table per device with automatic learning and aging (10 to 1,000,000 seconds). 

•  64 MB packet buffer per device. 

•  Supports Port Mirroring. 

•  Supports Port Trunking. 

•  802.1D Spanning Tree support. 

•  802.1Q Tagged VLAN support – up to 255 VLANs per device (one VLAN is reserved for internal use). 

•  GVRP – (GARP VLAN Registration Protocol) support for dynamic VLAN registration.   

•  802.1p Priority support with 4 priority queues. 

•  IGMP Snooping support. 

•  Forty-eight high-performance NWay ports all operating at 10/100 Mbps for connecting to end stations, servers and 

hubs. 

•  All 48 10/100 UTP ports can auto-negotiate (NWay) between 10Mbps/100Mbps, half-duplex or full duplex. 

•  One front panel slide-in module interface for a 2-port 1000BASE-T module (provided) and one front panel slide-in 

module interface for a 2-port Mini GBIC Gigabit Ethernet module (optional). Please note that although these two front