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Product features:
Metro Ethernet Managed Switch with 48 10/100/1000Base-T PoE ports and 4 1000Base-X SFP ports
General features:
Interfaces
• 48 x 10/100/1000Base-T PoE ports
• 4 x SFP ports
• RJ-45 console port
 
Port Standards & Functions
• Ports 1 to 48 compliant with 802.3at
 
Size
• 19-inch standard rack-mount width
• 1U height
 
Diagnostic LEDs
• Power (per device)
• Console (per device)
• Link/Activity/Speed (per 10/100/1000 Mbps port)
• Power Fail/Power Ok (per PoE port)
• Fan Error
 
Other Port Standards & Functions
• IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)
• IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)
• IEEE 802.3ab 1000BASE-T Gigabit Ethernet (twisted-pair copper)
• IEEE 802.3az compliance
• Auto-negotiation
• IEEE 802.3x Flow Control
• IEEE 802.3z 1000BASE-X Gigabit Fiber
 
Network Cables
• UTP Cat. 5, Cat. 5e (100 m max.)
 
Duplex Mode
• Full/Half-duplex for 10/100 Mbps
• Full-duplex for 1000 Mbps
 
Media Interface Exchange
• Auto MDI/MDIX adjustment for all twisted-pair ports
 
Switching Capacity
• 104 Gbps
 
Transmission Method
• Store-and-forward
 
MAC Address Table
• 16K entries per device
 
MAC Address Update
• Up to 256 static MAC entries
 
Maximum 64 bytes packet forwarding rate
• 77.4 Mpps
 
Packet Buffer Memory
• 3 MB
 
CPU Memory
• 256 MB DDR3
 
Packet Buffer
• 3 MB
 
Flash Memory
• 32 MB
 
Software Features
L2 Features
• MAC address table: 16K entries
• Spanning Tree Protocols
  - 802.1D STP
  - 802.1w RSTP
  - 802.1s MSTP
  - BPDU filtering
 - Root restriction
• Loopback detection
• Mirroring
  - Support 1 mirroring group
  - Support One-to-One, Many-to-One, Flow-based (ACL) mirroring for ingress traffic
• L2 Protocol Tunneling (L2PT)
• Link aggregation
  - Compliant with 802.3ad
  - Supports max. 8 groups, 8 ports per group
 
L2 Multicasting
• IGMP Snooping
  - IGMP v1/v2 snooping, v3 awareness
  - IGMP authentication/filtering
  - Supports 256 groups
  - VLAN/host-based IGMP snooping fast leave
  - Report suppression
• MLD Snooping
  - MLD v1, MLD v2 awareness
  - Supports 512 groups
 
VLAN
• 802.1Q tagged VLAN
• VLAN group
• Max. 4094 VLAN groups
• Port-based VLAN
• GVRP
• Asymmetric VLAN
• Max. 256 dynamic VLAN
• 802.1v protocol VLAN
• VLAN trunking
• MAC-based VLAN
• Port-based Q-in-Q
• ISM VLAN (multicast VLAN)
 
L3 Features
• Max. 256 ARP entries
• Supports 255 static ARP entries
• Supports Gratuitous ARP
• Default route
 
Quality of Service (QoS)
• CoS based on:
  - Switch port
  - 802.1p priority queues
  - VLAN ID
  - MAC address
  - IPv4/IPv6 address
  - DSCP
  - TOS
  - Protocol type
  - TCP/UDP port
  - IPv6 traffic class
• Bandwidth control
  - Port-based (ingress, min. granularity 64 Kbps)
  - Flow-based (ingress, min. granularity 64 Kbps)
  - Egress queue bandwidth control (min. granularity 64 Kbps)
• Queue handling
  - Strict priority
  - Weighted Round Robin (WRR)
• 8 outbound queues
 
Access Control List (ACL)
• ACL based on
  - Switch port
  - 802.1p priority
  - VLAN ID
  - MAC address
  - EtherType
  - TOS
  - IPv4/v6 address
  - DSCP
  - Protocol type
  - IPv4/IPv6 TCP/UDP port number
  - ICMP
  - IPv6 traffic class
• Up to 768 ingress access rules
• ACL action (permit/deny/mirror)
• Time-based ACL
• ACL statistics
• CPU interface filtering
 
Authentication, Authorization and Accounting (AAA)
• 802.1X
  - Host-based access control
  - Port-based access control
• Guest VLAN
• Host-based MAC authentication
• Microsoft® NAP support
• RADIUS accounting
• TACACS+ accounting
• User account privilege (4 level user access)
• MAC-based access control
  - Max. 512 entries when using local database
• Authentication for management access
  - Local, RADIUS, TACACS+ database
 
Security
• SSH v2
• SSL v1/2/3
• Port security (Up to 64 MAC addresses per port)
• IP-MAC-Port Binding (IMPB)
  - ARP inspection
  - IP inspection
  - IPv6 DHCP snooping
• Broadcast/Multicast/Unicast storm control
• D-Link Safeguard Engine
• DHCP server screening
• DHCP client filtering
• BPDU attack protection
• DoS attack prevention
• Traffic segmentation
 
Operations, Administration and Maintenance (OAM)
• 802.3ah Ethernet Link OAM
  - Supports 802.3ah link layer remote loopback and discovery (System log and SNMP)
  - 802.3ah D-Link extension: D-link Unidirectional Link Detection (DULD), (System log and SNMP)
• Cable diagnostics
• Dying Gasp
• Supports optical transceiver digital diagnostics monitoring (DDM)
 
Management
• Web-based GUI (IPv4/IPv6)
• Command Line Interface (CLI)
• Telnet Server/Client (Support IPv4/IPv6)
• TFTP client (IPv4)
• Command logging
• SNMP v1/v2c/v3
• SNMP traps
• System log
• RMON v1
• RMON v2
• LLDP
• BootP/DHCP client
• DHCP auto-configuration
• Text-editable config file
• Trusted host
• DHCP relay (IPv4/IPv6)
  - DHCP relay agent/local relay
  - DHCP relay option 12, 37, 38
  - DHCP relay option 82
• PPPoE Circult-ID tag insertion
• Trap/alarm/log severity control
• CPU monitoring
• SNTP
• LLDP-MED (for PoE models only)
• Debug command
• Password recovery
• Password encryption
• Backdoor password
• D-Link Network Assistant (DNA)
 
MIB
• RFC1212 Concise MIB Definitions
• RFC1213 MIB II
• RFC1215 MIB Traps Convention
• RFC1065, 1151, 2578 MIB Structure
• RFC1493 Bridge MIB
• RFC1157, 2573, 2575, 2576 SNMP MIB
• RFC3418 SNMPv2 MIB
• RFC2819 RMON MIB
• RFC2021 RMONv2 MIB
• RFC1643, 1650, 2665 Ether-like MIB
• RFC2674 802.1p MIB
• RFC 2233 Interface Group MIB
• RFC 2618 RADIUS authentication client MIB
• RFC 2620 RADIUS accounting client MIB
• RFC3289 D-Link Zone Defense MIB
• RFC4022 MIB for TCP
• RFC4113 MIB for UDP
• PoE MIB
• DDP MIB
• LLDP-MED MIB
 
IETF Standard
• RFC768 UDP
• RFC791 IP
• RFC792 ICMPv4
• RFC2463, 4443 ICMPv6
• RFC793 TCP
• RFC826 ARP
• RFC1321, 2284, 2865, 2716, 3580 Extensible Authentication Protocol (EAP)
 
IPv6
• RFC1981 Path MTU Discovery
• RFC2460 IPv6
• RFC2461, 4861 Neighbor Discovery
• RFC2462, 4862 IPv6 Stateless Address Auto-configuration
• RFC2893, 4213 IPv4/IPv6 dual stack function
 
Physical Parameters
Power Input
• AC Input: 100 to 240 V AC, 50/60 Hz
 
Maximum Power Consumption
• 957.9 W (PoE on)
• 56.8 W (PoE off)
 
Standby Power Consumption
• 100 V: 37.8 W
• 240 V: 35.9 W
 
Maximum PoE Budget
• 740 W
 
Acoustics
• Low speed: 49.3 dBA
• High speed: 55.2 dBA
 
Heat Dissipation
• 3268.46 Btu/hr
 
MTBF
• 265457 hours
 
Ventilation
• 5 x Smart fans
 
Power Surge Protection
• All Gigabit Ethernet ports support IEC 61000-4-5 surge protection
 
Weight 
• 6.52 kg
 
Dimensions  
• 440 x 431 x 44 mm
 
Temperature 
• Operating: -5° to 50°C
• Storage: -40° to 70°C
 
Humidity 
• Operating: 10% to 90% non-condensing 
• Storage: 5% to 90% non-condensing
 
EMI
• FCC Class A
• CE Class A
• VCCI
• BSMI
• CCC
 
Certifications
• CE
• LVD
• UL
• CB


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