100 – 240V AC / 48V DC dual power redundancy, 24-port 10/100/1000BASE-T RJ45 copper, 4 100/1000BASE-X mini-GBIC/SFP slots, compatible with 100BASE-FX SFP, Active-active redundant power failure protection, Backup of catastrophic power failure on one supply, BOOTP and DHCP for IP address assignment, Cable diagnostic technology provides the mechanism to detect and report potential cabling issues, DHCP Relay and DHCP Option82, Fault tolerance and resilience, Four RMON groups (history, statistics, alarms, and events), High performance of Store-and-Forward architecture, and runt/CRC filtering eliminates erroneous packets to optimize the network bandwidth, IGMP snooping port filtering, IPv4 and IPv6 dual stack management, IPv6 IP Address / NTP / DNS management and ICMPv6, Layer 2 Features:, Layer 3 IP Routing Features:, Link Layer Discovery Protocol (LLDP), Loop protection to avoid broadcast loops, Management:, MLD snooping port filtering, Multicast:, MVR (Multicast VLAN Registration), NTP (Network Time Protocol), Physical Port:, PLANET Smart Discovery Utility, Port mirroring to monitor the incoming or outgoing traffic on a particular port, Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex), Provides port mirror (many-to-1), Querier mode support, Redundant Power System:, RS-232 DB9 console interface for basic management and setup, Storm control support, Supports IGMP snooping v1, v2 and v3, Supports Link Aggregation, Supports maximum 32 software static routes and route summarization, Supports MLD snooping v1 and v2, Supports Spanning Tree Protocol, Supports VLAN, Switch Management Interfaces, System Maintenance, User privilege levels control