Gigabit Ethernet L3 Switch with 8 SFP Gigabit Ethernet ports + 4 combo 10/100/1000Mbps Copper/SFP ports The ES4612 is a 12 port gigabit Ethernet switch, ideal to be implemented in the distribution layer of three-tier networks, which provides long distance fiber connections to aggregate access layer switches in different locations. Performance, reliability, security ES4612 boosts layer 3 switching performance and eliminates network bottleneck with wire-speed switching capacity, also supports Link Aggregation 802.3ad and static trunking. With standard spanning tree protocol 802.1D and proprietary fast mode spanning tree, multiple spanning tree 802.1s* and rapid spanning tree 802.1w*, ES4612 provides path redundancy while preventing undesirable loops in the network. ES4612 also comes with multiple security standards, including port security, SSL, RADIUS and TACACS+ to ensure data security and privacy during the communication.