Gigabit Managed Layer 3 Switch


  • състоянието на продукта (DEU Revision A): Live

The DGS-3312SR is a versatile addition to D-Link’s Business and Enterprise Solutions line of products. The modular design of the DGS-3312SR allows it to function as a stand-alone backbone switch or as a high performance stacking master unit for the DES-3226SM, adding Layer 3 routing functions to your existing stack.

The DGS-3312SR is a versatile addition to D-Link’s Business and Enterprise Solutions line of products. The modular design of the DGS-3312SR allows it to function as a stand-alone backbone switch or as a high performance stacking master unit for the DES-3226SM, adding Layer 3 routing functions to your existing stack. The DGS-3312SR ships standard with (4) 10/100/1000Mbps/combo SFPs with (2) additional expansion module slots. Available expansion modules for the DGS-3312SR include: DEM-540 (4) port stacking module, DEM-340MG (4) port SFP module, and DEM-340T (4) port 10/100/1000Mbps module.


With a 24Gbps switching fabric and forwarding rate in excess of 17 million packets per second, the DGS-3312SR is an ideal solution for large workgroups or small to medium backbones. As a stand-alone switch the DGS-3312SR supports up to 16,000 MAC addresses, jumbo frames, and (8) hardware based priority queues. As a stacking master unit for up to (8) DES-3226SM units, the DGS-3312SR provides up to 9.6Gbps of available stacking bandwidth.

High Availability

The hardware and software features of the DGS-3312SR work together to allow customers to build affordable, high performance, and high availability networks. The DGS-3312SR unit supports the DPS-200, D-Link’s optional Redundant Power option, and the DPS-800 (2) slot rackmount chassis system. Other features of the DGS-3312SR include support for 802.3ad (Link Aggregation), 802.1d (Spanning Tree), and 802.1w (Rapid Spanning Tree) for increased network reliability and availability. The DGS-3312SR supports a variety of routing options including: static routes, RIPv1/v2, OSPFv2, PIM-DM, and DVMRP.

Network Management

The DGS-3312SR supports a variety of network management options including: Console, CLI, Telnet, Web, SNMPv1/v3, RMON, TFTP, Port Mirroring, BootP, and DHCP. The DGS-3312SR also supports a variety of advanced traffic management options including: 802.1x, Bandwidth Control, Broadcast Rate Limiting, and support for IGMPv1/v2 Snooping.

Advanced Enterprise Features

The DGS-3312SR implements a robust and consistent set of QoS/CoS, VLAN, and Security features. The DGS-3312SR includes support for up to (8) priority queues for 802.1p/TOS/DiffServ, with classification and marking based on MAC SA/DA, IP SA/DA, and/or TCP/UDP port numbers. Security features include: 802.1x (Port/MAC based authentication), and Access Control Lists based on MAC address, IP address, and/or TCP/UDP port numbers. The DGS-3312SR also has extensive support for GARP/GVRP, 802.1q, and port based VLANs for up to 255 static groups per device.

Технически характеристики

Technical Specifications 


Device Ports
  • 4 built-in 10/100/1000BASE-T ports
  • 4 built-in combo SFP (mini GBIC) *
  • RS-232 console port

* Use of the SFP will disable their corresponding built-in 10/100/1000BASE-T connections. These Gigabit ports can be configured for server/backbone attachments, or for switch stacking.

Number of Expansion Slots
  • 2

Port Modules (for expansion slots)
  • DEM-340MG: 4 SFP slots
  • DEM-340T: 4 10/100/1000BASE-T ports

Port Standard/Function Support
  • IEEE 802.3 10BASE-T/802.3u 100BASE-TX/802.3ab 1000BASE-T
  • ANSI/IEEE 802.3 NWay auto-negotiation
  • IEEE 802.3x Flow Control
  • Auto MDI/MDIX
  • Port mirroring

SFP (Mini GBIC) Support
  • IEEE 802.3z 1000BASE-LX (DEM-310GT transceiver)
  • IEEE 802.3z 1000BASE-SX (DEM-311GT transceiver)
  • IEEE 802.3z 1000BASE-LH (DEM-314GT transceiver)
  • IEEE 802.3z 1000BASE-ZX (DEM-315GT transceiver)

Forwarding Rate
  • 17.8Mpps (max.)

Switch Fabric
  • 24Gbps

Diagnostic LEDs

Per device:
  • Power
  • Console
  • RPS

Per RJ-45 port:
  • Speed
  • Link/Act

Per SFP port:
  • Link/Act


IP Routing
  • IP v4 support
  • IP Fragmentation support
  • Routing protocols supported:   
    •   Static routing   
    •   RIP-1, RIP-2   
    •   OSPF v.2
  • IEEE 802.1Q Tagged VLAN
  • Port-based VLAN (non-overlapping)
  • Maximum number of VLANs: 4K  

Priority Queues (CoS)
  • Standard: IEEE 802.1p
  • Number of queues: 8 per port

Traffic Classification (CoS)

Can be based on user-definable application types:
  • TOS
  • Diffserv (DSCP)
  • Port-based
  • MAC address
  • IP address
  • TCP/UDP port number

Network Access Security
  • 802.1x user authentication: port-based and MAC-based
  • RADIUS client for 802.1x support
  • SSH2 *
  • SSL *
  • Cisco-like port security
  • Multi-layer Access Control List (ACL) based on:   
    • MAC   
    • VLAN
    • 802.1p
    • Diffserv (DSCP)
    • IP address   
    • Protocol type
    • TCP/UDP destination port number
* Functions available in next firmware upgrade

Spanning Tree
  • 802.1D compatible
  • 802.1w Rapid Spanning Tree

  • IGMP v2
  • IGMP Snooping
  • PIM-DM

Port Trunk
  • Number of ports per trunk: 8 (max.)
  • Number of trunk per switch: 6 (max.) (in DGS-3312SR standalone mode only)
  • Trunking mode: static
  • Operation mode: load sharing
  • 802.3ad LACP support


Transmission Method
  • Store-and-forward

MAC Address Table
  • 16K entries per device

Routing Table
  • 2K entries per device

MAC Address Learning
  • Dynamic entries: automatic update
  • Static entries: user-defined

Layer 2 Packet Filtering/Forwarding Rates (half duplex)
  • 1,488,100 pps per port (max.)

RAM Buffer
  • 1MB per device

Jumbo Frame Size
  • Up to 9,216bytes

Broadcast Storm Control
  • Rate control of Broadcast, unknown Multicast and Unicast packets

Configuration & Management

Management Support
  • SNMP v.1, v.3
  • Web-based management
  • CLI (command line interface)
  • RMON monitoring
  • Telnet server
  • Telnet remote control console
  • Web GUI traffic monitoring
  • Password enable
  • Web MAC address browsing
  • SNMP trap on MAC notification
  • SNTP
  • IP filtering on management interface

  • MIB-II (RFC 1213)
  • Bridge MIB (RFC 1493)
  • RMON MIB (RFC 1757)
  • RIP (RFC 1724)
  • OSPF (RFC 1850)
  • CIDR (RFC 2096)
  • 802.1Q VLAN/802.1p MIB (RFC 2674)
  • IGMP MIB (RFC 2933)
  • IF (Interface) MIB (RFC 2233)
  • Ethernet-like MIB (RFC 1643)
  • D-Link enterprise MIB 

RMON Groups
  • 1, 2, 3, 9 (Alarm, Statistics, History, Event)

IP Number Self-identification
  • Through DHCP client, Bootp client

Firmware Upgrade
  • TFTP client

Console Port
  • DB-9 RS-232 DCE

Physical & Environmental

Power Input 
  • 100 to 120 VAC, 50/60 Hz or 200 to 240 VAC, 50/60 Hz
  • Internal universal power supply

Redundant Power Backup Support
  • Connector to connect to external redundant power supply

Power Consumption
  • 30 watts (max.) (without expansion modules)

  • 60 x 60 mm DC fans x 1

Operating Temperature
  • 0 ° to 40 °C

Storage Temperature
  • -25° to 55 °C

  • 10% to 95% non-condensing

  • 440 (W) x 309 (D) x 44 mm (H) (device only)
  • 19-inch rack-mount width, 1 U height

  • 4.4 kg (device only, without expansion modules)

Emission (EMI)
  • FCC Class A
  • CE Class A
  • C-Tick

  • CSA International

Ordering Information 

Modular L3 Gigabit Switch

  • 4 10/100/1000BASE-T ports,
  • 4 combo SFP (mini GBIC), 2 expansion slots, redundant power support

Optional Expansion Module

  • 4 SFP GBIC slots

  • 4 10/100/1000BASE-T ports

Optional SFP Transceiver

  • SFP transceiver for 1000BASE-LX, single-mode fiber, max. distance 10km, 3.3V

  • SFP transceiver for 1000BASE-SX, multi-mode fiber, max. distance 550m, 3.3V

  • SFP transceiver for 1000BASE-LHX, single-mode fiber, max. distance 40km, 3.3V

  • SFP transceiver for 1000BASE-ZX, single-mode fiber, max. distance 80km, 3.3V

Optional Redundant Power Supply

  • 60 watts redundant power supply

  • 2-slot redundant power supply chassis

  • 8-slot redundant power supply chassis 

Product Support Section

Версия Дата Тип Размер на файла
Datasheet (English) - PDF 0.29mb Свали
Версия Описание Дата Тип Размер на файла
CLI Manual CLI Manual 1.10.2005 г. PDF 1.48mb Свали
Manual Manual - PDF 12.48mb Свали
Версия Описание Дата Тип Размер на файла
1.00 Quick Installation Guide 1.9.2001 г. PDF 0.18mb Свали
Версия Описание Дата
Firmware v3.60-S21 3.60 Firmware v3.60-S21 30.11.2009 г. Свали
Firmware v3.51 build 03 3.51B03 Firmware v3.51 build 03 6.5.2009 г. Свали
Firmware v3.50 build 10 3.50B10 Firmware v3.50 build 10 1.1.2006 г. Свали
Версия Описание Дата
DEU_AD_A1_CE_Doc CE Declaration 12.5.2009 г. Свали
DEU_AD_Switch_RevA Switch Guide - Свали