SP6148WS 48-Port 10/100/100M Gigabit Web Smart Switch and 4 Shared SFP Slots, Support 802,1q VLAN, 802,1P QoS, Port Trunk. Micronet SP6148WS 48-port Gigabit Web Smart Switch delivers truly non-blocking and wire-speed Gigabit performance for enterprises and service providers that demand high-port density applications. Moreover, it brings advanced features, as tag-based VLAN, port trunk, L2/L3/L4 traffic prioritization, bandwidth control, and ACL, to optimize the network. Key Features * IEEE802.3, IEEE802.3u, IEEE802.3ab and IEEE802.3z * 48 x 10/100/1000M RJ-45 ports and 4 x shared SFP slots * 48Gbps non-blocking switching capability * Wire-speed performance at jumbo packet size of 16K bytes * Head of Line (HOL) blocking prevention * IEEE802.1q tag-based VLAN, 256 VLAN groups * Traffic optimization using various class of service option * 4 hardware priority queues * Enhanced traffic rule and security by L2/L3/L4 ACL (Access Control List) * Broadcast and multicast storm control * Ingress and egress per port bandwidth control * Port trunk with flexible load distribution and failover function * SNMP trap, E-mail, and SMS alarm for any connectivity events