מתג מנוהל עם 20 פורטים במהירות ג'יגהביט, ארבע יציאות משולבות ג'יגהביט/אופטי (SFP) ושתי יציאות 10GBase-CX4 ותמיכה ב - PoE
היכן לקנות


The series switches DGS-3120 c software Routed Image (RI) includes switches, Layer 3, provide a secure connection end-users to networks of large enterprises and small and medium businesses (SMB). The switches support advanced security features, making them an ideal Gigabit access layer solution or aggregation, depending on the task at hand. Model DGS-3120-24PC / 48PC equipped with 20 and 44 ports of 10/100 / 1000Base-T, respectively, and 4 combo ports 1000Base-T / SFP. All ports are 10/100 / 1000Base-T Data switches support Power over Ethernet technology standard 802.3af and 802.3at. By default, the total budget power - 370 watts, which can be increased up to 760 watts when using the optional power supply DPS-700. The switches support CardReader for reading memory cards SD, which allows downloading of software and configuration files directly from the SD-card and save her log files.
Software Standard Image (SI), Enhanced Image (EI) and Routed Image (RI)
The set switches DGS-3120 series includes three different versions of the software: Standard Image (SI), Enhanced Image (EI) and Routed Image (RI). Switches to the standard version of the software (SI) support advanced features for network construction scale of the campus or enterprise, including advanced settings Quality of Service (QoS), traffic shaping, multicast Layer 2, a variety of security features and functions of IPv6, used in the networks of the new generation IPv6 support for applications or Triple Play networks Metro Ethernet. Software Version Enhanced Image (EI) supports ERPS, Double VLAN (Q-in-Q), Ethernet OAM, Static Route, IMPB and sFlow. Routed Image (RI) includes support for DHCP-server, VRRP, tunneling IPv6, RIP, OSPF, Policy-based Routing (PBR), IGMP, MLD, PIM and DVMRPv3.
High reliability
Switches DGS-3120 series are designed for enterprise networks / campus, as well as for users who require high availability and maximum uptime. All models series switches DGS-3120 supports external redundant power supply, thus providing, continuous operation. The switches also support functions 802.1D Spanning Tree (STP), 802.1w Rapid Spanning Tree (RSTP) and 802.1s Multiple Spanning Tree (MSTP), Loopback Detection (LBD), and protection from broadcast storms that enhance network resilience. Thanks to the G.8032 Ethernet Ring Protection Switching (ERPS) provides a failover about 50 ms. For load balancing and fault tolerance by using multiple switches series DGS-3120 supports 802.3ad Link Aggregation.
Enhanced security features
Switches DGS-3120 series software Routed Image (RI) supports the latest security features such as Multi-level access control lists (ACL), protection from the storm, and IP-MAC-Port Binding (IMPB) with DHCP Snooping. Function IP-MAC-Port Binding allows administrators to bind a source IP-addresses and MAC-address of the user to determine the port number on the switch, thereby prohibiting the user to change the network settings. Moreover, thanks to the DHCP Snooping, the switch automatically detects pairs of IP / MAC-address given by the server, DHCP-tracking packages and storing them in a "white list" IMPB. In addition, the function of D-Link Safeguard Engine identifies and prioritize packets destined for processing CPU, to prevent network attacks and protect the management interface on the switch.
Identity Driven Network Policies
Switches DGS-3120 Series supports authentication mechanisms such as 802.1X, Access Control Web-based interface (WAC) and access control MAC-based, providing easy deployment. After authentication, individual policies such as belonging to a VLAN, QoS policies and rules ACL, can be assigned to each host. In addition, the switch supports Microsoft® NAP (Network Access Protection). Technology NAP allows users to deny access to a network of computers that do not meet the safety requirements.
Traffic Management for Triple Play services
DGS-3120 series provides a set of features multi-level QoS / CoS, ensure that critical network services such as VoIP, video conference, IPTV and IP-Surveillance, are served with proper priority. Options Traf fi c Shaping provide guaranteed bandwidth for data services in the case of a high network load. With the support of multicast Layer 2 Switch DGS-3120 implements IPTV-processing applications using the growing market demand. IGMP / MLD Snooping allows host-based connection of multiple customer multicast group to a single interface. When you use the ISM VLAN multicast traffic for efficient bandwidth consumption and improve network security is transferred to a separate VLAN. ISM VLAN profiles allow users to quickly and easily assign / change the preset settings on ports multicast subscribers.
Effective management
For the implementation of the Agreement on the level of quality of service SLA (Service Level Agreement), service providers must reduce the mean time to repair performance device (Mean Time to Repair - MTTR) and increase service availability. Ethernet OAM features contribute to solving these problems and allows service providers to ensure the best quality of service. Switches DGS-3120 supports standardized OAM, including IEEE 802.3ah, IEEE 802.1ag and ITU-T Y.1731. Connectivity Fault Management (CFM) provides monitoring functions, and troubleshooting networks Ethernet, allowing you to control the connection, isolate network issues, and identify customers affected by network issues.
IPv6 Technology
Switches DGS-3120 series is fully compatible with the networks of the next generation IPv6-based remote management and support IPv6 over telnet, HTTP or SNMP. For secure IPv6-network switches DGS-3120 Series uses IPv6 ACL, DHCPv6 Snooping and functions Neighbor Discovery (ND) to protect the network from unauthorized IPv6-customers. The series has successfully passed the certification IPv6 Logo Phase 2 from the IPv6 Forum, a global alliance of industry, whose main activity is to ensure the implementation and development of technology IPv6. Certification Program IPv6 Ready Logo testing equipment provides the IPv6 interoperability and compliance protocols.
Green Technology
D-Link is a leader in the development of innovative energy-saving technology that does not sacrifice performance or limiting the functionality of the device. Switches DGS-3120 series support the technology D-Link Green, which allows the use of power-saving mode, lower the heat and automatically reduces power consumption depending on the length of the cable. The power saving feature automatically powers down ports. Smart Fan feature automatically turns on the built-in fans at a certain temperature, providing continuous, reliable and sustainable performance of the switch. The switch also supports Energy Efficient Ethernet (EEE), which reduces operating costs.
Function D-Link Single IP Management (SIM) simplifies and speeds up the administration, since it is possible to configure, monitor and maintain multiple switches connected to the same IP-address from any computer with support for Web-browser. Through the use of this technology in the management of all devices in the virtual stack are treated as a single entity and managed through a single IP-address. Switches DGS-3120 series supports standard management protocols such as SNMP, RMON, Telnet, Console, Web-interface, and authentication protocols SSH / SSL.

מאפיינים כללים

• 20 ports of 10/100 / 1000Base-T
• 4 Combo 10/100 / 1000Base-T / SFP
• 2-port 10G c CX4 connector

Redundant Power Supply
• DPS-700

Console port
• RJ-45

Slot for SD-cards
• 1

• Power (per device)
• Console (per device)
• RPS (per device)
• Master (device)
• Fan (per device)
• SD (per device)
• PoE (per device)
• Link / Activity (per port)

Switching matrix
• 88 Gbit / s

Speed ​​packet forwarding
• 65,48 Mpps

Packet Buffer
• 2MB

• 32 MB

• 802.3af PoE standards and 802.3at

PoE power budget
• 370W
• 760 W (DPS-700)

Features 2 levels
• MAC-address table: 16K entries
• Flow Control
  • 802.3x Flow Control
  • HOL Blocking Prevention
• Jumbo-frame up to 13 Kbytes
• 802.3ad Link Aggregation
  • Max. 32 device group, 8 gigabit ports per group
• Spanning Tree Protocols
  • 802.1D STP
  • 802.1w RSTP
  • 802.1s MSTP
  • BPDU Filtering
  • Root Restriction
• Loopback Detection
• Ethernet Ring Protection Switching (ERPS)
• Port Mirroring
  • One-to-One
  • Many-to-One
  • On the basis of the flow

Multicast Layer 2
• IGMP Snooping
  • IGMP v1 / v2 / v3 Snooping
  • 1024 IGMP-support groups
  • Fast Leave port-based / node
• Limit multicast on IP-addresses
  • Up to 24 profiles filtering IGMP, 32 address range to profile
• MLD Snooping
  • MLD v1 / v2 Snooping
  • Supports up to 1024 groups
  • Fast Leave-based site

• VLAN Group
  • Max. 4K VLAN-group
  • Max. 4K dynamic VLAN-group
• 802.1Q Tagged VLAN
• VLAN-based port
• 802.1v Protocol VLAN
• Voice VLAN
• VLAN MAC-based address
• Double VLAN (Q-in-Q)
  • Port-based Q-in-Q
• Asymmetric VLAN
• Private VLAN
• VLAN Trunking

Quality of service (QoS)
• 802.1p
• 8 queues per port
• Mechanisms queuing
  • Strict Priority
  • Weighted Round Robin (WRR)
  • Strict + WRR
• Support for the following streams
  • Tagging 802.1p priority
  • Priority Tagging TOS / DSCP
  • Bandwidth Management
• CoS-based
  • Switch port
  • 802.1p Priority Queues
  • MAC-address
  • IPv4-address
  • DSCP
  • the type of protocol
  • TCP / UDP-port
  • The contents of the package, user-defined
  • IPv6 address-
  • Class IPv6-traffic
  • IPv6 flow label
• Bandwidth Management
  • Based on the port (incoming / outgoing, min. Step up to 8 kbit / s)
  • On the basis of the flow (incoming / outgoing, min. Step up to 8 kbit / s)
• Three-color marking
  • CIR / PIR min. Step 8 kbit / s
  • Two Rate Three Color Marker (trTCM), CBS / PBS
  • Single Rate Three Color Marker (srTCM), CBS / EBS

Access Control Lists (ACL)
 • ACL based on:
  • 802.1p Priority
  • MAC-address
  • Ether Type
  • IPv4-address
  • DSCP
  • the type of protocol
  • Non-TCP / UDP-port
  • The contents of the package, user-defined
  • IPv6 address-
  • IPv6 flow label
  • Class IPv6-traffic
• Support for up to 1,5K access rules
• ACL based on time
• CPU Interface Filtering

• SSH v2
• SSL v1 / v2 / v3
• Port Security
  • Up to 64 MAC-addresses per port / VLAN
• Linking IP-MAC-Port
  • Checking the ARP-packets
  • Check the IP-packet
  • DHCP Snooping
  • IPv6 ND Snooping
  • Up to 510 entries per device
• Protection from the broadcast / multicast / unicast storm
• Traffic Segmentation
• D-Link Safeguard Engine
• Filtering NetBIOS / NetBEUI
• DHCP Server Screening
• Prevention of ARP Spoofing Attacks
• Prevention of DoS attacks
• Protection against attacks BPDU

• 802.1X:
  • Access control based on port
  • Based Access Control Node
  • Policy Identity-driven (VLAN, ACL or QoS)
  • Authentication Database Failover
• Access control based on Web (WAC):
  • Access control based on port
  • Based Access Control Node
  • Policy Identity-driven (VLAN, ACL or QoS)
  • Authentication Database Failover
• Access Control MAC-based (MAC):
  • Access control based on port
  • Based Access Control Node
  • Policy Identity-driven (VLAN, ACL or QoS)
  • Authentication Database Failover
• Access control based on the Japanese Web-based interface
• Guest VLAN
• Microsoft® NAP
  • Support for 802.1X NAP
  • Support for DHCP NAP
• RADIUS Accounting
• TACACS + Accounting
• RADIUS and TACACS authentication for access to the switch
• Accounts with 4 levels of access rights
• Compound Authentication
Features 3 levels
• The maximum number of IP-interface - 16
• ARP Proxy
• IPv6 Neighbour Discovery (ND)
• IPv6 transition
Routing Level 3
• Static Routing
  • Up to 512 entries static routing for IPv4 / IPv6
• IP Directed Broadcast
Multicast Layer 3
• IGMP / MLD Proxy
• Multicast Duplication
• PIM Spare-Dense Mode
Features D-Link Green
• RoHS compliant
• Reduction of energy consumption based on the connection status
• Reduce energy consumption depending on the length of the cable
• PoE on schedule
• IEEE 802.3az Energy Efficient Ethernet (EEE)

• Diagnostic cable
• 802.3ah Ethernet Link OAM
• 802.3ah D-Link Extension: D-link Unidirectional Link Detection (DULD)
• 802.1ag Connectivity Fault Management (CFM)
• ITU-T Y.1731

• Web-interface
• Command Line Interface (CLI)
• Telnet-server
• Telnet-client
• TFTP-client
• ZModem
• SNMP v1 / v2c / v3
• SNMP Traps
• System Log
• RMON v1:
  • Support groups 1,2,3,9
• RMON v2:
  • Support group ProbeConfig
• BootP / DHCP-Client
• Auto Configuration via DHCP
• DHCP Relay
• DHCP Client Option 12
• DHCP Relay Option 18, 37, 82
• Flash File System
• Support for multiple versions of software
• Support for multiple versions of configurations
• CPU Monitoring
• Use the debug (Debug Command)
• Restoration of the password
• Encryption password
• Trusted Host
• Microsoft® NLB
• ICMPv6
• sFlow
• Add a label PPPoE Circuit-ID

• RFC 1213 MIB II
• RFC 4188 Bridge MIB
• RFC 1157, 2571-2576 SNMP MIB
• RFC 1907 SNMPv2 MIB
• RFC 1757 RMON MIB 2819
• RFC 2021 RMONv2 MIB
• RFC 1398, 1643, 1650, 2358, 2665 Ether-like MIB
• RFC 2674 802.1p MIB
• RFC 2233, 2863 IF MIB
• RFC 2618 RADIUS Authentication Client MIB
• RFC 2620 RADIUS Accounting Client MIB
• RFC 2674, 4363 802.1p MIB
• RFC 1065, 1066, 1155, 1156, 2578 MIB Structure
• RFC 1215 MIB Traps Convention
• RFC1212 Concise MIB Definitions
• RFC1215 MIB Traps Convention
• RFC1157, 2571-2576 SNMP MIB
• RFC4022 MIB for TCP
• RFC4113 MIB for UDP
• RFC4293 IPv6 SNMP Mgmt Interface MIB
• RFC 2737 Entity MIB (version 2)

Compliance with RFC standards
• RFC 768 UDP
• RFC 791 IP
• RFC 792, 2463, 4443 ICMP
• RFC 793 TCP
• RFC 826 ARP
• RFC 3513, 4291, IPv6 Addressing Architecture
• RFC 2893, 4213 IPv4 / IPv6 dual stack function
• RFC 2463, 4443 ICMPv6
• RFC 2462, 4862 IPv6 Stateless Address Auto Configuration
• RFC 2464 IPv6 Ethernet and definition
• RFC 1981 Path MTU Discovery for IPv6
• RFC 2460 IPv6
• RFC 2461, 4861 Neighbor Discovery for IPv6
• RFC 783 TFTP
• RFC 2068 HTTP
• RFC 2866 RADIUS Accounting
• RFC 2474, 3260 DiffServ
• RFC 1321, 2284, 2865, 3580, 3748

Extensible Authentication Protocol (EAP)
• RFC 2571, 2572, 2573, 2574, SNMP
• IPv6 Ready Logo Phase 2
• RFC 854 Telnet
• RFC 951, 1542 BootP




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