24-ports operate at 10 100 while four additional SFP-based ports operate at Gigabit speeds. The 10 100 ports also provide Power over Ethernet (PoE) for distribution of power to other devices over the same cabling used for data.
3com Switch 5500-EI PWR 28p. Management protocols: Web-based GUI, SNMP, telnet, CLI, RMON-1 (statistics, history, alarms, events), SMON, multiple softw, Switching protocols: IEEE 802.1D (STP), 802.1p (CoS), 802.1Q (VLANs), 802.1w (RSTP), 802.1X (Security), 802.3 (Ethernet),. Compatible operating systems: 3Com Operating System; shared with 3Com Switch 8800, 7700 and Router 6000 . Dimensions (WxDxH): 440 x 270 x 43 mm, Networking features: DHCP tracker, UDP helper, traceroute, 1-1 traffic mirroring (standalone unit only)