D-Link Managed L2 Metro Ethernet Switch 24x1000Base-T, 4x10GBase-X SFP+, Surge 6KV, CLI, RJ45 Console, RPS. Web interface (IPv4/IPv6 support); Command Line Interface (CLI); Telnet Server/Client (IPv4/IPv6 support); TFTP client (IPv4/IPv6 support); Command logging; SNMP v1/v2c/v3; SNMP Traps; System Log; RMON v1; RMON v2; LLDP; BootP/DHCP client; Automatic configuration of DHCP; Configuration file in text format; Trusted host; DHCP relay (IPv4/IPv6): DHCP relay agent/local relay; DHCP relay option 12, 37, 38; DHCP relay option 82; Adding the PPPoE Circuit-ID tag; Trap/alarm/log severity control; CPU monitoring; SNTP; LLDP; Debugging commands; Password recovery; Password encryption; Up to 14 simultaneous telnet/ssh/console sessions; FTP client (IPv4/IPv6 support)