20-Port SFP xStack Managed L2+ Stackable switch with 4 Gigabit Combo BASE-T/SFP ports and 2 10G SFP+ ports
Overview:
• The D-Link DGS-3420-26SC is an xStack L2+ managed stackable Gigabit switch designed for SMB, enterprise, aggregation, departmental access, and service provider fiber networks.
• It provides 20 × SFP ports, 4 × combo 10/100/1000BASE-T/SFP ports, and 2 × 10G SFP+ uplink ports for high-density fiber access and 10G uplink connectivity.
• The switch is suitable for Fiber to the Building (FTTB), enterprise fiber aggregation, campus networks, CCTV fiber backbone, and multi-level network designs with centralized high-speed servers.
• It supports physical stacking up to 12 units, virtual stacking up to 32 devices, up to 40Gbps full-duplex stacking bandwidth, Layer 2+ routing, IPv6, VLAN, QoS, ACL, security, OAM, and D-Link Green technology.
• The DGS-3420-26SC delivers 88Gbps switch fabric, 65.47Mpps packet forwarding rate, 16K MAC address table, 2MB packet buffer, 13,000-byte jumbo frame, and optional DPS-500 redundant power supply support.
Key Features:
• 20-Port SFP Managed Stackable Gigabit Switch
• 20 × SFP Ports
• 4 × Combo 10/100/1000BASE-T/SFP Ports
• 2 × 10G SFP+ Uplink Ports
• xStack L2+ Managed Stackable Platform
• 88Gbps Switch Fabric
• 65.47Mpps Packet Forwarding Rate
• 16K MAC Address Table
• 2MB Packet Buffer
• Jumbo Frame up to 13,000 Bytes
• Physical Stacking up to 12 Units
• Up to 40Gbps Stacking Bandwidth
• Virtual Stacking up to 32 Devices
• D-Link Single IP Management Support
• Optional DPS-500 Redundant Power Supply
• IPv6 Ready Logo Phase 2
• Layer 2+ Routing and Static Routing Support
• 10G SFP+ Uplink Support
• ERPS, STP, RSTP, MSTP, Loopback Detection
• ACL, IMPB, DHCP Snooping, ARP Spoofing Prevention
• OAM, Cable Diagnostics, CFM, ITU-T Y.1731
• Suitable for Enterprise, Service Provider, FTTB, CCTV Fiber Backbone, and Aggregation Networks
Technical Specifications:
• Product Type: L2+ Managed Stackable Gigabit Switch
• Brand: D-Link
• Model: DGS-3420-26SC
• Series: DGS-3420 Series
• Port Configuration: 20 × SFP Ports + 4 × Combo 10/100/1000BASE-T/SFP Ports + 2 × 10G SFP+ Ports
• SFP Ports: 20 Ports
• Combo Ports: 4 × 10/100/1000BASE-T/SFP Ports
• 10G SFP+ Ports: 2 Ports
• Console Port: RJ45
• Management Port: 10/100BASE-T
• Alarm Port: 1 Port
• SD Card Slot: 1 Slot
• Optional Redundant Power Supply: DPS-500
• Switch Fabric: 88Gbps
• Packet Forwarding Rate: 65.47Mpps
• Packet Buffer: 2MB
• MAC Address Table: 16K Entries
• IPv4 Routing Table: 1K Entries
• IPv6 Routing Table: 512 Entries
• IPv4 Forwarding Table: 2K Entries
• IPv6 Forwarding Table: 1K Entries
• Jumbo Frame Size: 13,000 Bytes
• MTBF: 300,018 Hours
• Acoustic Level: Max 47.3dB
• Heat Dissipation: 137BTU/hr
• Power Input: 100 to 240V AC, 50/60Hz
• Maximum Power Consumption: 40.2W
• Dimensions: 441 × 310 × 44mm
• Weight: 4.04kg
• Ventilation: Temperature-Controlled Smart Fan
• Fan Operation: High speed above 39°C / Low speed below 36°C
• Operating Temperature: 0°C to 50°C
• Storage Temperature: -40°C to 70°C
• Operating Humidity: 10% to 90% RH
• Storage Humidity: 5% to 90% RH
• Emission Standards: FCC Class A, CE Class A, VCCI Class A, IC, C-Tick
• Safety Standards: CB, cUL, LVD
• Certification: IPv6 Ready Logo Phase 2
• Physical Stacking: Up to 12 units per stack
• Stacking Bandwidth: Up to 40Gbps
• Stacking Topology: Duplex Chain / Ring
• Virtual Stacking: Up to 32 devices using D-Link Single IP Management
• Layer 2 Features: 16K MAC address table, Flow Control, 802.3x Flow Control, HOL Blocking Prevention, Jumbo Frame up to 13,000 bytes, IGMP Snooping, MLD Snooping, Loopback Detection, STP, RSTP, MSTP, BPDU Filtering, Root Restriction, ERPS, L2 Protocol Tunneling
• Link Aggregation: Up to 32 groups per device, 8 Gigabit ports or 2 × 10G ports per group
• Port Mirroring: One-to-One, Many-to-One, Flow-Based, RSPAN Mirroring, up to 4 mirroring groups
• VLAN Features: 4K Static VLAN Groups, 255 Dynamic VLAN Groups, 802.1Q Tagged VLAN, 802.1v Protocol VLAN, GVRP, Double VLAN Q-in-Q, Port-Based Q-in-Q, MAC-Based VLAN, VLAN Trunking
• Layer 3 Features: 256 IP Interfaces, Loopback Interface, IPv6 Tunneling, Proxy ARP, Gratuitous ARP, VRRP
• Layer 3 Routing: 1K routing entries shared by IPv4/IPv6, 256 IPv4 static routes, 128 IPv6 static routes, RIP v1/v2, RIPng, Policy-Based Routing, Route Redistribution
• QoS Features: 802.1p QoS, 8 queues per port, Strict, WRR, Strict + WRR, DSCP, bandwidth control, flow statistics, committed information rate, time-based QoS, WRED
• Bandwidth Control: Port-based ingress/egress minimum 8Kbps, flow-based ingress minimum 8Kbps, CIR minimum 1Kbps
• ACL Support: Ingress ACL up to 6 profiles and 256 rules per profile, egress ACL up to 4 profiles and 128 rules per profile
• Security Features: SSH v2, SSL v1/v2/v3, Port Security, Storm Control, Traffic Segmentation, IP-MAC-Port Binding, ARP Packet Inspection, IP Packet Inspection, DHCP Snooping, DHCPv6 and NDP Snooping, D-Link Safeguard Engine, DHCP Server Screening, CPU Interface Filtering, ARP Spoofing Prevention, BPDU Attack Protection, NetBIOS/NetBEUI Filtering
• AAA Features: 802.1X, Web-Based Access Control, MAC-Based Access Control, Japan Web-Based Access Control, Microsoft NAP, Guest VLAN, RADIUS and TACACS+ Authentication, 4-Level User Account
• Management Features: Web GUI, CLI, Telnet Server/Client, TFTP Client, ZModem, SNMP v1/v2c/v3, SNMP Trap, System Log, RMON v1/v2, sFlow, LLDP/LLDP-MED, BootP/DHCP Client, DHCP Auto-Configuration, DHCP Relay, DHCP Relay Option 60/61/82, DHCP Server, Flash File System, Multiple Images, Multiple Configurations, CPU Monitoring, SNTP, ICMPv6, DHCPv6 Client/Relay/Server, Trusted Host, MTU Setting, Microsoft NLB Support, UDP Helper
• OAM Features: 802.3ah Ethernet Link OAM, D-Link Unidirectional Link Detection, IEEE1588 Precision Time Protocol, Cable Diagnostics, Connectivity Fault Management, ITU-T Y.1731
• D-Link Green Features: Power Saving by Link Status, Cable Length Detection, LED Shutoff, Port Shutoff, System Hibernation, 802.3az Energy Efficient Ethernet
• Optional 10G SFP+ Transceivers: DEM-431XT, DEM-431XT-DD, DEM-432XT, DEM-432XT-DD, DEM-433XT, DEM-433XT-DD, DEM-434XT, DEM-435XT, DEM-435XT-DD, DEM-436XT-BXU, DEM-436XT-BXD
• Optional 1G SFP Transceivers: DEM-310GT, DEM-311GT, DEM-312GT2, DEM-314GT, DEM-315GT, DEM-330T, DEM-330R, DEM-331T, DEM-331R, DEM-211, DEM-210, DEM-220T, DEM-220R, DGS-712
• Optional Direct Attach Cables: DEM-CB100S, DEM-CB300S, DEM-CB700S
• Optional Redundant Power Supplies: DPS-500, DPS-500DC
• Optional Management Software: D-View 6.0 Standard Edition, D-View 6.0 Professional Edition
Applications:
• Enterprise fiber aggregation networks
• Service provider FTTB networks
• Campus fiber backbone deployments
• CCTV fiber backbone and aggregation
• Departmental access layer networks
• Multi-building network connectivity
• Server room and core switch uplinks
• SMB and enterprise managed networks
• Networks requiring 10G SFP+ uplinks
• Networks requiring stacking, VLAN, QoS, ACL, OAM, and secure centralized management
Connect Gates Recommendation:
• Connect Gates recommends the D-Link DGS-3420-26SC for projects that require high-density SFP fiber connectivity with 10G uplink support in a managed stackable platform.
• It is an ideal choice for enterprise fiber aggregation, FTTB service provider networks, CCTV fiber backbone, campus networks, and multi-building fiber distribution.
• The 20 SFP ports, 4 combo ports, and 2 × 10G SFP+ uplinks make it suitable for projects that depend mainly on fiber links while still needing flexible copper/SFP handoff ports.
• For best performance, Connect Gates recommends selecting suitable SFP/SFP+ transceivers or DAC cables according to the required fiber type, distance, uplink design, and stacking topology.