D-Link DGS-3620-28SC/SI xStack 24-port SFP Layer 3 Managed Gigabit Switch, 4 Combo 1000BaseT/SFP, 4 1

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DGS-3620-28SC/SI and EI: 28-Port SFP L3 Stackable Managed Switch including 4 x Combo 1000BASE-T/SFP ports and 4 x SFP+ 10 Gbps ports (Standard and Enhanced Image) Features Flexibility 20/48 10/100/1000BASE-T ports or 20 SFP slots 4 Combo 10/100/1000BASE-T/SFP ports1 4 10-Gigabit SFP+ uplink ports 802.3af and 802.3at PoE support2 Security L2/L3/L4 multi-layer Access Control External RADIUS/TACACS+ authentication SSH/SSL support 802.1X guest VLAN D-Link Safeguard Engine Unicast Reverse Path Forwarding (uRPF)3 Reliability Redundant Power Supply (RPS) support 802.1D/802.1w/802.1s Spanning Tree Loopback Detection (LBD) Ethernet Ring Protection Switching (ERPS) High Bandwidth Physical/Virtual Stacking Physical stack of up to 12 units, 576 Gigabit ports Virtual stack of up to 32 units using single IP management OAM 802.3ah Ethernet link OAM 802.1ag, ITU-T Y.1731 service OAM Interface Number of SFP ports DGS-3620-28SC - 20 ports Number of Combo 1000Base-T/SFP ports DGS-3620-28SC - 4 ports Number of SFP+ ports DGS-3620-28SC - 4 ports Optional redundant power supply DGS-3620-28SC - DPS-500 RS-232 console port Yes Management port 10/100BASE-TX Alarm port Yes SD card slot Yes Performance Switch Capacity DGS-3620-28SC - 128 Gbps 64-Byte Packet Forwarding Rate DGS-3620-28SC - 95.24 Mpps Packet Buffer 2 MB MAC address table 32K entries IPv4 routing table 12K entries IPv6 routing table 6K entries IPv4 forwarding table 8K entries IPv6 forwarding table 4K entries Jumbo frame size 130000 bytes Physical & Environmental MTBF DGS-3620-28SC - 298263 hours Acoustics (max) DGS-3620-28SC - 49.9 dB Heat Dissipation (max) DGS-3620-28SC - 144.2 BTU/hr Power Input 100 to 240 VAC, 50 to 60Hz Internal Universal Power Supply Power Consumption (max) DGS-3620-28SC - 43.4 W Dimensions (W x D x H) DGS-3620-28SC - 441 x 310 x 44 mm (17.36 x 12.20 x 1.73 inches) Weight DGS-3620-28SC - 4.10 kg (9.04 lbs) Ventilation Smart fan Temperature Operating: 0° to 50°C Storage: -40° to 70°C Operating Humidity Operating: 10% ~ 90% Non-condensing Storage: 5% ~ 90% Non-condensing EMI/EMC FCC Class A, CE Class A, VCCI Class A, IC, C-Tick Safety CB, cUL, LVD Certification IPv6 Ready Logo Phase 2 Software Feature Stackability Virtual stacking support D-Link Single IP Management Up to 32 devices per virtual stack Up to 20G stacking bandwidth Physical stacking Supports duplex chain/ring topology Up to 40G stacking bandwidth Up to 12 units per stack L2 Features MAC address table: 32K Flow control 802.3x Flow control HOL blocking prevention Jumbo frames up to 13000 bytes IGMP snooping IGMP v1/v2/v3 snooping Supports 1K groups Port/host-based IGMP snooping fast leave MLD snooping MLD v1 snooping Supports 1K groups Host-based MLD snooping fast leave Spanning tree 802.1D-2004 STP 802.1w RSTP 802.1Q-2005 MSTP BPDU filtering Root restriction Loopback detection 802.3ad link aggregation Max. 32 groups per device 8 Gigabit ports or 2 10-Gigabit ports per group Port mirroring Supports 4 mirroring groups Supports one-to-one, many-to-one, flow-based, and RSPAN mirroring L2 protocol tunneling ERPS (Ethernet Ring Protection Switching) VLAN VLAN group Max. 4K static VLAN groups Max. 255 dynamic VLAN groups 802.1Q tagged VLAN 802.1v protocol VLAN GVRP Double VLAN (Q-in-Q) Port-based Q-in-Q Selective Q-in-Q MAC-based VLAN VLAN trunking Super VLAN L3 Features 256 IP interfaces Loopback interface UDP helper5 VRRP Proxy ARP Gratuitous ARP L3 Routing 12K routing entries shared by IPv4/v6 Max. 12K IPv4 routes Max. 6K IPv6 routes 8K L3 forwarding entries shared by IPv4/v6 Max. 8K IPv4 entries Max. 4K IPv6 entries 256 static routing entries for IPv4, 128 entries for IPv6 Supports ECMP/WCMP Policy-based routing RIP v1/v2 OSPF OSPF v2 OSPF passive interface Stub/NSSA area OSPF equal cost route Multicasting 2K multicast groups PIM-DM PIM-SM PIM sparse-dense mode IGMP v1/v2/v3 QoS (Quality of Service) 802.1p Class of Service (CoS) 8 queues per port Queue handling Strict Weighted Round Robin (WRR) Strict + WRR WRED4