- Five different models in the Series, including PoE/PoE+ versions
- Multiple functions in a single device: switching, routing, PoE,
eliminating the need of purchasing multiple routers and switches
- Physical stacking architecture: up to 576 Gigabit ports on a single
stack
- Web-based GUI for easy management
- Comprehensive security features, including Microsoft NAP
- Comprehensive IPv6 support
- SD card slot to store and restore configuration files
- Green technology – Power-saving mode, time-base PoE, Smart Fans
The DGS-3420 Series of next generation Layer 2+ Gigabit switches
delivers performance, flexibility, security, multi-layer QoS and access control,
along with redundant power solutions for SMBs and enterprises. With high Gigabit
port densities, Gigabit SFP and 10-Gigabit SF + support, and advanced software
solutions, these switches can act as either departmental access layer devices or
aggregation switches to form a multilevel network structured with backbone and
centralised high-speed servers. Service providers can take advantage of the high
SFP density switches to structure the aggregation of Fibre to the Building
(FTTB) networks that they extend to the subscriber’s sites.
Unparalleled Flexibility
Easily deployed and simple to manage, the DGS-3420 can be virtually stacked
with any switch that supports D-Link’s Single IP Management (SIM) to form a
multi-level network structured with backbone and centralised high-speed servers.
The virtual stack can include units located anywhere on the same network domain,
eliminating cable distance barriers, limitations of physical stacking, and the
need for stack cabling.
Redundant Ring Stacking
Alternatively, depending on whether linear or fault-tolerant ring stacking is
implemented, users can use one or two 10-Gigabit SFP+ ports to create a physical
stack1. Switches in the stack are hot-swappable to minimise network
downtime in case a replacement is required, eliminating single points of failure.
Up to 12 units or 576 Gigabit ports can be configured for a stack using direct
attached cables1 allowing high bandwidth and high port densities on the already
cost efficient DGS-3420 Series.
Security, Performance & Availability
The DGS-3420 Series provides a complete set of security features including
L2/L3/L4 multi-layer Access Control Lists and 802.1x user authentication via
TACACS+ and RADIUS servers.
The DGS-3420 Series offers extensive VLAN support including GVRP and 802.1Q
VLAN to enhance security and performance. A robust set of L2/L3/L4 QoS/CoS
solutions help ensure that critical network services such as VoIP, ERP,
Intranet, and video conferencing are served with proper priority. The DGS-3420
Series provides D-Link’s Safeguard Engine to increase the switch’s reliability,
serviceability, and availability to prevent malicious flooding traffic caused by
worms or virus infections. Bandwidth Control can be flexibly set for each port
using pre defined thresholds to assure a committed level of service for end
users. For advanced applications, flow-based bandwidth control allows easy fine
tuning of service types based on specific IP addresses or protocols.
IPv6 Technology
The DGS-3420 Series also features comprehensive IPv6 support, including IPv6
Tunneling, ICMPv6, DHCPv6, RIPng, etc. With 10-Gigabit connectivity and IPv6
support, the DGS-3420 Series enables you to future-proof your network for cost
efficiency and longevity while meeting the requirements for IPv6 capable network
devices in the coming years.
D-Link Green Technology
D-Link is striving to take the lead in developing innovative and power-saving
technology that does not sacrifice operational performance or functionality. The
DGS-3420 Series implements the D-Link Green Technology, which includes a power
saving mode, smart fan, reduced heat dissipation, and cable length detection.
The power saving feature automatically powers down ports that have no active
link. The Smart Fan feature allows for the built-in fans to automatically turn
on at a certain temperature, providing continuous, reliable and eco-friendly
operation of the switch.
1 With stacking cables DEM-CB100S, DEM-CB300S (sold separately)
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: 16K
- Flow Control
- 802.3x Flow Control
- HOL Blocking Prevention
- Jumbo Frame up to 13K Bytes
- IGMP snooping
- IGMP v1/v2/v3 Snooping
- Supports 960 groups
- Port/Host-based
- IGMP Snooping
- Fast Leave
- MLD Snooping
- MLD v1/v2 Snooping
- Supports 480 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
- Support 4 Mirroring Groups
- Support 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-Q2
- MAC-based VLAN
- VLAN Trunking
- 802.1Qbb2
L3 Features
- 256 IP interfaces
- Loopback interface
- IPv6 Tunneling
- Proxy ARP
- Gratuitous ARP
L3 Routing
- 1K routing entries shared by IPv4/v6
- Max. 1K IPv4 routes
- Max. 512 IPv6 routes
- 2K L3 forwarding entries shared by IPv4/v6
- Max. 2K IPv4 entries
- Max. 1K IPv6 entries
- 256 static routing entries for IPv4, 128 entries for IPv6
- RIP v1/v2
- RIPng (IPv6)
QoS (Quality of Service)
- 802.1p Class of Service (CoS)
- 8 queues per port
- Queue Handling
- Strict
- Weighted Round Robin (WRR)
- Strict + WRR
- CoS based on
- Switch Port
- VLAN ID
- 802.1p Priority Queues
- MAC Address
- IPv4/v6 Address
- DSCP
- Protocol Type
- IPv6 Traffic Class
- IPv6 Flow Label
- TCP/UDP Port
- User-defined Packet Content
- Supports following actions for flows:
- Remark 802.1p Priority Tag
- Remark TOS/DSCP Tag
- Bandwidth Control
- Flow Statistics
- Committed Information Rate (CIR), min. granularity 1 Kbps.
- Bandwidth Control
- Port-based (Ingress/Egress, min. granularity 64 Kbps)
- Flow-based (Ingress, min. granularity 64 Kbps)
- Time-based QoS
ACL (Access Control List)
- Ingress ACL: support up to 6 profiles and 256 rules per profile
- Egress ACL: support up to 4 profiles and 128 rules per profile
- ACL based on
- 802.1p Priority
- VLAN ID
- MAC Address
- Ether Type
- IPv4/v6 Address
- DSCP
- Protocol Type
- TCP/UDP Port Number
- IPv6 Traffic Class
- IPv6 Flow Label
- User-defined Packet Content
- ACL Statistics
- Time-based ACL
- CPU interface filtering
Security
- SSH v2
- SSL v1/v2/v3
- Port Security up to 64 MAC addresses per port
- Broadcast/Multicast/Unicast Storm Control
- Traffic Segmentation
- IP-MAC-Port Binding
- ARP Packet Inspection
- IP Packet Inspection
- DHCP Snooping
- DHCPv6 and NDP Snooping
- Supports up to 500 Address Binding Entries per device
- D-Link Safeguard Engine
- DHCP Server Screening
- CPU Interface Filtering
- ARP Spoofing Prevention
- BPDU Attack Protection
AAA
- 802.1x
- Port-based Access Control
- Host-based Access Control
- Dynamic VLAN Assignment
- Web-based Access Control (WAC)
- Port-based Access Control
- Host-based Access Control
- Dynamic VLAN Assignment
- MAC-based Access Control (MAC)
- Port-based Access Control
- Host-based Access Control
- Dynamic VLAN Assignment
- Japan Web-based Access Control (JWAC)
- Host-based Access Control
- Microsoft® NAP
- Supports 802.1x NAP
- Supports DHCP NAP
- Guest VLAN
- RADIUS and TACACS+ authentication for switch access
- 4-Level user account
Management
- Web-based GUI
- Command Line Interface (CLI)
- Telnet Server
- Telnet Client
- TFTP Client
- ZModem
- SNMP v1/v2c/v3
- SNMP Trap
- System Log
- RMON v1
- RMON v2
- Supports ProbeConfig Group
- sFlow
- LLDP/LLDP-MED
- BootP/DHCP Client
- DHCP Auto-Configuration
- DHCP Relay
- DHCP Relay Option 60, 61
- DHCP Relay Option 82
- DHCP Server
- Flash File System
- Multiple Images
- Multiple Configurations
- CPU Monitoring
- Debug Command
- SNTP
- ICMPv6
- DHCPv6 Client
- DHCPv6 Relay
- DHCPv6 Server
- Trusted Host
- MTU Setting
- Microsoft® NLB Support
- UDP helper 4
OAM
- 802.3ah Ethernet Link OAM
- 802.3ah D-Link Extension: D-Link Unidirectional Link Detection
(DULD)
- IEEE1588 Precision Time Protocol (PTP)
- Cable Diagnostics 3
- 802.1ag Connectivity Fault Management (CFM)
- ITU-T Y.1731
Green
- Power saving by Link Status
- Power saving by Cable Length
- Time-based PoE
MIB/IETF Standards
- RFC1213 MIB-II
- RFC1493 Bridge MIB
- RFC1907 SNMPv2 MIB
- RFC2571~2576 SNMP MIB
- RFC1271, 2819 RMON MIB
- RFC2021 RMON v2 MIB
- RFC2665 Ether-like MIB
- RFC2668 MAU MIB
- RFC2674 802.1p MIB
- RFC2233, 2863 IF MIB
- RFC2618 RADIUS Authentication Client MIB
- RFC1724 RIP v2 MIB
- RFC2096 IP Forwarding Table MIB (CIDR)
- RFC2620 RADIUS Accounting Client MIB
- Ping MIB
- Traceroute MIB
- D-Link Private MIB
- RFC768 UDP
- RFC783 TFTP
- RFC 791 IP
- RFC 793 TCP
- RFC 826 ARP
- RFC854 Telnet
- RFC951, 1542 BootP
- RFC2068 HTTP
- RFC3056, 5214 IPv6 Tunnel
- RFC2138 RADIUS
- RFC2139 RADIUS Accounting
- RFC1492 TACACS
- RFC3176 sFlow
- RFC2598 DiffServ Expedited Forwarding
2 Implemented in future firmware upgrade
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