Updating can be done via the Web-UI or the utility. Method 1: Updating via Web-UI (Recommended) DGS-1100-08 - D-Link Technical Support
Log into the switch's web GUI (default IP 10.90.90.90 ) and check the Device Information page. dgs-1100-08 firmware
The firmware does not impede wire-speed forwarding. The switch handles 8 ports of 1 Gbps full-duplex with no measurable latency added by VLAN or QoS rules. Updating can be done via the Web-UI or the utility