D-Link DGS-3120-24SC-RI Switch 24 Port Lan 16 X SFP/GIGA Ports+ PHY 10/100/1

Interface
- 16 SFP
- 8 combo ports 10/100/1000BASE-T/SFP
Redundant Power Supply: DPS-200
Management console port: RJ-45
2 ports for stacking
1 slot for SD-cards

Performance
Switching matrix 88 Gb / s
The speed of forward 64-byte packets: 65, 48 Mpps
Buffer packets: 2 MB
Flash-Memory: 32 MB

Stacking
Physical Stacking
- The bandwidth for stacking up to 40 Gb / s
- Up to 6 units, combined in a stack
Virtual stacking:
- Technology D-Link Single IP Management (SIM)
- Up to 32 devices in the virtual stack

Layer 2 features
MAC-address table: 16K
Flow Control
- 802.3 x Flow Control
- HOL Blocking Prevention
Jumbo-frame up to 13 Kbytes
Spanning Tree
- 802.1D STP
- 802.1 w RSTP
- 802.1 s MSTP
- Filtering BDPU
- Root Restriction
Loopback Detection
802.3 ad Link Aggregation
- Max. 32 groups per device / 8 ports per group
Port Mirroring
- One-to-One
- Many-to-One
- Based on the flow
- RSPAN

Multicast Layer 2
IGMP Snooping
- IGMP v1/v2/v3 Snooping
- Support 1024 IGMP-group
- Fast Leave on the port / flow
- Report Suppression
Restricting multicast to IP-addresses
- Up to 24 profiles filtering IGMP, 32 address range on the profile
MLD Snooping
- MLD v1/v2 Snooping
- Supports up to 1024 groups
- Fast Leave on the port / flow

VLAN
Group VLAN
- Max. 4K VLAN groups
GVRP
- Support for dynamic VLAN-255 groups
802.1Q Tagged VLAN
VLAN-based port
802.1 v Protocol VLAN
Voice VLAN
VLAN based on MAC-address
ISM VLAN
Assymetric VLAN
Private VLAN
VLAN Trunking

Quality of Service (QoS)
802.1 p
8 queues per port
Queue management
- Strict Priority
- Weighted Round Robin (WRR)
- Strict + WRR
CoS-based
- Switch port
- VLAN ID
- 802.1 p priority queues
- MAC-address
- IPv4-address
- DSCP
- Type of protocol
- TCP / UDP-ports
- Content of the package, a user-defined
- IPv6-address
- IPv6-class traffic
- IPv6 flow label
Support for the following streams
- Tagging 802.1 p priority
- Add a tag priority TOS / DSCP
- Bandwidth Management
Bandwidth Management
- Port-based (incoming / outgoing, min. Step up to 64 kbit / s)
- Flow-based (incoming / outgoing, min. Step up to 64 kbit / s)

Access Control Lists (ACL)
Supports up to 1, 5 K Access Rules
ACL based on:
- 802.1 p Priority
- VLAN ID
- MAC-address
- Ether Type
- IPv4-address
- DSCP
- Type of protocol
- Number of TCP / UDP-ports
- Content of the package, a user-defined
- IPv6-address
- IPv6 flow label
- IPv6-class traffic
ACL-based time
Filter interface CPU

Security
SSH v2
SSL v1/v2/v3
Port Security
- Up to 64 MAC-address on a port / VLAN
Control of Broadcast / -/ storms
Segmentation of Traffic
D-Link Safeguard Engine
Filtering NetBIOS / NetBEUI
DHCP Server Screening
Prevent attacks ARP Spooofing
Protection against attacks BDPU

AAA
802.1X
- Access control based on port
- Control access based on host
- Identity-Driven Policy (VLAN, ACL or QoS)
- Authentication Database Failover
Access control based on the Web (WAC):
- Access control based on port
- Based Access Control host
- Identity-Driven Policy (VLAN, ACL or QoS)
- Authentication Database Failover
Access control based on MAC-address (MAC):
- Access control based on port
- Control access based on host
- Identity-Driven Policy (VLAN, ACL or QoS)
- Authentication Database Failover
Japanese Web-based management (JWAC) 4
Guest VLAN
Microsoft ® NAP
- Support for 802.1X NAP
- Support for DHCP NAP
Maintaining RADIUS accounting
RADIUS and TACACS authentication for access control
Accounts with 4 levels of privilege

Functions of D-Link Green
Compliance with the RoHS Directive
Power on the status of the connection
Power cable length
PoE on time

Performing Operations, Administration and Management (OAM)
Diagnosis of cable

Management
Management of Web-based interface (Supports IPv4)
Command Line Interface CLI
Server Telnet (support IPv4)
Client Telnet (support IPv4)
Client TFTP (Supports IPv4)
ZModem
SNMP v1/v2c/v3
SNMP Traps
System Log
RMON v1:
+ Support groups 1, 2, 3, 9
RMON v2:
+ Support Group ProbeConfig
LLDP
BootP / DHCP-client
Automatic configuration DHCP
DHCP Relay
DHCP Relay Option 12
DHCP Relay Option 82
Flash File System
Support for multiple versions of software
Support for multiple versions of configurations
CPU Monitoring
Debug Command
SNTP
Password Recovery
Password Encryption
Trusted host
Microsoft ® NLB (Network Load Balancing)

MIB
RFC 1213 MIB II
RFC 4188 Bridge MIB
RFC 1157, 2571-2576 SNMP MIB
RFC 1907 SNM
Pv2 MIB
RFC 1757 RMON MIB 2819
RFC 2021 RMO
Nv2 MIB
RFC 1398, 1643, 1650, 2358, 2665 Ether-like MIB
RFC 2674 802.1 p MIB
RFC 2233, 2863 IF MIB
RFC 2618 RADIUS Authentication Client MIB
RFC 2620 RADIUS Accounting Client MIB
RFC 2925 Ping & Traceroute MIB
RFC 2674, 4363 802.1 p MIB
RFC 1215 MIB Traps Convention

Compliance with standards RFC
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 ICM
Pv6
RFC 2462, 4862 IPv6 Stateless Address Auto

Confguration
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 854 Telnet
RFC 951 BootP 1542
RFC 2068 HTTP
RFC 1492 TACACS
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

Functions of the expanded version of Layer 2 features
Ethernet Ring Protection Switching (ERSP)

Management
SNMP v1/v2c/v3
- SNMP over IPv6
sFlow
ICM
Pv6
Web-interface (Support for IPv6)
Server Telnet (support IPv6)
Client Telnet (support IPv6)
TFTP-Client (Support for IPv6)