24-Ports 10/100/1000Mbps Layer 2+ Stackable Gigabit Switch including 4-port Combo 1000BaseT/SFP plus 4 10GE SFP+- Including 4 built-in Combo 1000BaseT/Mini-GBIC SFP ports- 4 10GE SFP+, up to 20G bandwidth for stacking or 40G bandwidth for uplink- Up to 12 units per stack with other DGS-3420 series switches- Up to 32 units per virtual stack (Single IP Management)- IPv6 Ready Logo Phase I and Phase II, provides comprehensive IPv6 support including IPv6 Tunnel, ICMPv6, IPv6 Neighbor Discovery (ND), DHCPv6, RIPng - IEEE 802.3x Flow Control, Auto MDI/MDI-X on all twisted pair ports- MSTP, ERPS, LACP - IEEE 802.3ad Link Aggregatioin (32 groups per device, 8 ports per group)- 16K MAC address table, 1K routing table (shared by IPv4/6), 2K L3 forwarding table (shared by IPv4/6)- 256 Static IPv4/IPv6 Routes (shared by IPv4/6)- IEEE 802.1p Priority Queues (up to 8 queues)- Bandwidth Control (64Kbps granularity), Class of Service (CoS)- QoS based on IPv4 or IPv6 parameters- IEEE 802.1Q VLAN (4095 static, 255 dynamic groups)- Advanced Access Control List (ACL), Ingress ACL: support 6 profiles and 256 rules per profile, Egress ACL: support 4 profiles and 128 rules per profile- Advanced Security, RADIUS/TACACS+/SSHv2/SSLv3- IEEE 802.1x Port, WAC/MAC based Access Control, MAC-IP Binding- Broadcast Storm Control, Traffic Segmentation- IGMP v1/2/3 Snooping, MLD Snooping- HTTP, Telnet, TFTP client, CLI, SYSLOG- SNMP v1/v2c/v3, RMONv1/v2 (4 groups)- Optional External Redundant power supply (DPS-500)- Smart fan, external SD card (for firmware, config file, boot image, syslog), external alarm port- 19-inch rackmount size
