Console Port Yes1000Base-T PoE Interface 8 (Port 1~8)1000M SFP Interface 210/100/1000BASE-T PoE ports 8SFP ports 2Store & Forwarding Forwading YesSwitch Capacity 20 GbpsMax. Packet Forwarding Rate 14.88 MppsDimension 280mm x 180 mm x 44mmWeight 1.92 kgOperation Temperature -5 - 50°CStorage Temperature -20-70°COperation Humidity 0% - 95% RHStorage Humidity 0% ~ 95% RHOperating Altitude 1500 metersMaximum Power Consumption 101.7 W (PoE on) 17.9 W (PoE off)Standby Power Consumption 10.3 W/100V / 11.1 W/240VMaximum Heat Dissipation 307,703 BTU/hrAcoustic 0 dBMTBF 315,336 hoursPower Input 100-240 VACCPU Speed 400MHzDRAM Size 256MBFlash Memory Size 32MBPacket Buffer Size 1.5MBFAN FanlessComply with RoHS 6 YesEnergy Efficiency Ethernet (EEE) YesPower Saving By Link Status YesPower Saving By LED Shut-Off YesPower Saving By Port Shut-Off YesPower Saving By System Hibernation YesTime-based PoE YesMaximum PoE Budget 78WPoE Budget 78 W802.3x Flow Control YesHead-of-line (HOL) Blocking Prevention YesMAC Address Table Size 16K802.1D Spanning Tree (STP) Yes802.1w Rapid Spanning Tree (RSTP) Yes802.1s Multiple Spanning Tree (MSTP) YesBPDU Filtering YesRoot Restriction YesG. 8032 ERPS Yes802.1AX Link Aggregation Yes802.3ad Link Aggregation YesLink Aggregation Group Per Device 8Max Port Per Link Aggregation Group 8Port Mirroring YesFlow-based (ACL) mirroring YesJumbo Frame 9,216 BytesLoopback Detection (LBD) YesL2 Protocol Tunneling YesIGMP Snooping YesIGMP Snooping Fast Leave YesIGMP Authentication YesIGMP Accounting YesMax IGMP Snooping Groups 1024MLD Snooping YesMLD Snooping Groups YesMLD Snooping Fast Leave Yes802.1Q VLAN YesVLAN Groups YesPort-based VLAN Yes802.1v Protocol-based VLAN YesMAC-based VLAN YesGVRP YesDouble VLAN (Q in Q) YesVLAN Translation YesISM VLAN (Multicast VLAN) YesAsymmetric VLAN YesPrivate VLAN YesVLAN trunking YesIP Interface YesMax Number of IP Interface 4ARP YesARP Entries YesGratuitous ARP YesND Entries YesDefault Route YesStatic Route YesLimited IP Multicast (IGMP Filtering) YesClass of Service (CoS) YesTwo Rate Three Color Marker (trTCM) YesNumber of Queue YesRemark 802.1p priority YesRemark ToS/DSCP YesRate Limiting YesQueue Handling YesStrict Priority Queue (SPQ) YesWeighted Round Robin (WRR) YesSimple Random Early Detection (SRED) YesPort-based Bandwidth Control YesFlow-based bandwidth Control YesQueue-based Bandwidth Control YesMax Access Control List (ACL) Entries YesMAC Access List YesIP Access List YesIPv6 Access List YesUser-defined Access List YesCPU Interface Filtering YesTime based ACL YesSSH YesSSL YesPort Security YesBroadcast/Multicast/Unicast Storm Control YesTraffic Segmentation YesIP-MAC-Port Binding (IMPB) YesDHCP Snooping YesIPv6 Snooping YesIPv6 ND Inspection YesDuplicate Address Detection (DAD) YesD-Link Safeguard Engine YesBPDU Attack Protection YesDHCP Server Screening YesDHCP Client Filtering YesDoS Attack Prevention Yes802.1X YesPort based 802.1X Authentication YesHost based 802.1X Authentication YesMAC-based Access Control (MAC) YesHost based MAC Authentication YesGuest VLAN YesMicrosoft® NAP Support YesPrivilege Level for Management Access YesRADIUS YesTACACS+ YesRADIUS Accounting YesTACACS+ Accounting YesTrusted Host YesCable Diagnostics Yes802.3ah Ethernet Link OAM YesD-link Unidirectional Link Detection (DULD) YesDying Gasp Yes802.1ag Connectivity Fault Management (CFM) YesY. 1731 OAM YesOptical Transceiver Digital Diagnostic Monitoring (DDM) CLISimple Network Time Protocol (SNTP) YesNetwork Time Protocol (NTP) YesWeb-based GUI YesTelnet Server YesTelnet Client YesSNMP YesSNMP Trap YesTFTP Client YesFTP Client YesSMTP YESSystem Log YesRMONv1 YesRMONv2 YesLLDP YesLLDP-MED Yes (for 28P/ME)D-Link Discover Protocol (DDP) YesDHCP Auto-configuration YesDHCP/BootP Client YesDHCP Auto-image YesDHCP relay YesPPPoE Circuit-ID Tag Insertion YesDual Images YesEditable Login Banner YesEditable System Prompt YesDual Configurations YesDebug Command YesPassword Recovery YesPassword Encryption YesPing YesTraceroute YesD-Link Network Assistant YesSurge/Lightning Protection YesSurge/Lightning Protection (All Ethernet Ports) YesSSH YesSSL Yes