Technical Specifications
DGS-1250-28X 24 Ports 10/100/1000 Mbps + 4 Ports 10G SFP+ Smart Managed Switch
A1
General
24 x 10/100/1000BASE-T4 x 10G SFP+ ports
IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)IEEE 802.3u 100BASE-FX 100 Mbps over fiber opticIEEE 802.3ab 1000BASE-T Gigabit Ethernet (twisted-pair copper)IEEE 802.3z 1000BASE-X 1 Gbps over fiber opticIEEE 802.3az Energy-Efficient Ethernet (EEE)IEEE 802.3x Flow ControlIEEE 802.3ae 10 Gigabit EthernetIEEE 802.3af/at
UTP Cat. 5, Cat. 5e (100 m max.)
Full/Half-duplex for 10/100 MbpsFull-duplex for 1000 Mbps
Auto MDI/MDIX adjustment for all twisted-pair ports
Performance
128 Gbps
Store-and-forward
16K
256 entries
- Maximum 64 Byte Packet Forwarding Rate
95.24 Mpps
12 Mbits
2G DDR3
64 MB
PoE
N/A
N/A
N/A
LEDs
Yes
- Link/Active/Speed (per RJ-45 port)
Yes
- Link/Active/Speed (per 10G SFP+ port)
Yes
Physical
100 to 240 V AC 50/60 Hz internal universal power supply
- Maximum Power Consumption
30.6 W/100 V29.6 W/240 V
- Standby Power Consumption
8.7 W/100 V9.3 W/240 V
Max: 47.6 dB(A)Min: 33.2 dB(A)
104.346 BTU/hr (100 V)100.936 BTU/hr (240 V)
743,482.45 hours
-5 to 50°C (23 to 122°F)
-20 to 70°C (-4 to 158°C)
0% to 95% relative humidity
0% to 95% relative humidity
440 x 140 x 44 mm (17.32 x 5.51 x 1.73 in)
1.75 kg (3.86 lbs)
Certifications
CB, UL, BSMI, CCC
CE Class A, VCCI Class A, FCC Class A, IC, BSMI
Software
MAC Address Table16K entries32K entries (DGS-1250-52X/52XMP only)IGMP SnoopingIGMP v1/v2/v3 SnoopingSupports 256 IGMP groupsSupports at least 64 static multicast addressesIGMP per VLANSupports IGMP Snooping QuerierLoopback Detection802.3ad Link Aggregation:Supports maximum 8 groups per per device and 8 ports per groupLLDPLLDP-MEDJumbo FrameUp to 12,000 bytesSpanning Tree Protocol802.1D STP802.1W RSTP802.1s MSTPFlow Control802.3x Flow ControlHOL Blocking PreventionPort MirroringOne-to-OneMany-to-OneSupports Mirroring for Tx/Rx/BothMulticast FilteringForwards all registered groupsFilters all unregistered groupsConfigurable MDI/MDIXMLD snooping v1/v2 awareness (256 groups)PD-Alive
802.1QVLAN GroupMax. 4094 static VLAN groupsConfigurable VID from 1 - 4094Asymmetric VLANAuto Voice VLANMax. 10 user-defined OUIMax. 8 default OUIAuto Surveillance VLAN
802.1p Quality of Service8 queues per portQueue HandlingStrictWeighted Round Robin (WRR)Bandwidth ControlPort-based (ingress/egress, min granularity 10/100/1000 is 16 Kbps)QoS based on:802.1p priority queuesDSCPMAC addressEtherTypeIP addressProtocol typeToSIP preferenceIPv6 Traffic ClassTCP/UDP port
IP interfaceSupports 4 interfacesIPv6 Neighbor Discovery (ND)Static routing124 IPv4 static route entries50 IPv6 static route entries
- Access Control List (ACL)
Max. 50 access listsMax. 768 rules shared by IPv4, MAC, and IPv6Each rule can only be associated with a single portACL based onMAC address802.1p priority maskVID maskSource/destination MAC address maskEtherType maskIP addressSource/destination IP address maskDSCP maskProtocol type maskTCP/UDP port number maskIPv6 addressSource/destination IP address maskDSCP maskProtocol type maskTCP/UDP port number maskIPv6 traffic class mask
Broadcast/Multicast/Unicast Storm ControlD-Link Safeguard EngineTraffic segmentationSSH v2TLS v.1.2DoS attack prevention802.1X Port-based Access ControlPort SecuritySupports up to 64 MAC addresses per portARP Spoofing PreventionMax. 127 entriesDHCP Server ScreeningIP-MAC-Port Binding (Smart Binding)ARP InspectionMax. 64 entriesIPv4 InspectionMax. 127 entriesIPv6 InspectionMax. 63 entriesDHCP SnoopingMax. 512 entries
802.1X AuthenticationSupports local/RADIUS databaseSupports port-based access controlSupports host-based access controlSupports EAP, OTP, TLS, TTLS, PEAPIPv6 RADIUS serverSupport MD5 authenticationMax. 128 entries when using local database
Cable diagnostics Factory reset
Web-based GUID-Link Network AssistantFull CLITelnet ServerTFTP ClientConfigurable MDI/MDIXSNMPSupports v1/v2c/v3SNMP TrapBackup/upgrade firmwareSmart WizardUpload/download configuration fileBootP/DHCP ClientSystem LogMax. 500 log entriesSNTPICMP v6IPv4/v6 Dual StackDHCP Auto ConfigurationTime settingSNTPRMONv1Trusted hostDual imageDual configuration
Power Saving by:
- Link Status
- Time-based PoE: PoE ports can be turned on/off by port or system through schedule
System hibernationPort shut offCable length detection
RFC1212 Concise MIB DefinitionsRFC1213 MIBIIRFC1215 MIB Traps ConventionRFC1493 Bridge MIBRFC1157, RFC2573, RFC2575, RFC2576 SNMP MIBRFC1442, RFC1901, RFC1902, RFC1903, RFC1904, RFC1905, RFC1906, RFC1907, RFC1908, RFC2578, RFC3418 SNMPv2 MIBRFC271, RFC1757, RFC2819 RMON MIBRFC2021 RMONv2 MIBRFC1398, RFC1643, RFC1650, RFC2358, RFC2665 Ether-like MIBRFC2674 802.1p MIBInterface Group MIBRFC2618 RADIUS Authentication Client MIBRFC4022 MIB for TCPRFC4113 MIB for UDPRFC2389 MIB for Diffserv.RFC2620 RADIUS Accounting Client MIBPrivate MIBPoE MIBDDP MIBLLDP-MED MIB
RFC791 IPRFC768 UDPRFC793 TCPRFC792 ICMPv4RFC2463, RFC4443 ICMPv6RFC826 ARPRFC1321, RFC2284, RFC2865, RFC2716, RFC3580 Extensible Authentication Protocol (EAP)RFC2573 SNMP ApplicationsRFC2461, RFC4861 Neighbor Discovery for IPv6RFC2462, RFC4862 IPv6 Stateless Address Auto-configuration (SLAAC)RFC2464 IPv6 over Ethernet and definitionRFC4291 IPv6 Addressing ArchitectureRFC2893, RFC4213 IPv4/IPv6 dual stack function