Features:

• DS-3E3700-H Series provide 24 or 48 Giga and 4 fixed 10GE ports onboard with one expansion slot. The high port density satisfy the requirements for hybrid configuration of copper ports and fiber ports at the distribution layer in large sized networks or at the core layer in SMB sized networks
• DS-3E3700-H Series comes with IPv4/IPv6 dual-stack platform which provides sophisticated IPv4/IPv6 solutions by supporting multiple tunnels, IPv4/IPv6 Layer 3 routing protocols, multicasting, and policy-based routing
• The virtualization technology allows each slave device in the stack to serve as the backup of the master, creating control and data link redundancy, as well as uninterrupted layer-3 forwarding. This improves the reliability, avoids unplanned business downtime and serves to improve overall performance. When the master device fails, traffic remains uninterrupted
• The switch supports unified MAC address authentication, 802.1x authentication, and portal authentication; dynamic or static binding of user identifiers such as user account, IP address, MAC address, VLAN, and port number; and dynamic application of user profiles or policies (such as VLAN, QoS, and ACL) on users
• The switch supports Unicast Reverse Path Forwarding (uRPF), which protects a network against source spoofing attacks, preventing DoS and DDoS attacks
• The DS-3E3700-H switch series adopts hot swappable dual-power supply, which allows you to configure AC or DC power supplies as needed. The switch can detect faults in power supplies, and will if any such faults are found, respond with an alarm. It can automatically adjust fan speed according to the temperature.
• Apart from device level redundancy, the DS-3E3700-H series switch also provides diverse link redundancy support such as LACP/STP/RSTP/MSTP/Smart Link protocols. It supports virtualization redundancy backup as well as cross-device link aggregation which substantially increases network reliability.

Specifications:

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Specifications
Product Code	DS-3E3752-H
General
Weight	≤7.0 kg
Operating Temperature	0 °C to 45 °C (32 °F to 113 °F)
Operating Humidity	5% to 95% (no condensation)
Ports	48x10/100/1000BASE-T ports, 4x10G/1G BASE-X SFP+ ports
Dimensions (mm)	440x360x43.6
Key Feature
Link aggregation	1G/10G/40G port aggregation
	Static aggregation/Dynamic aggregation
	Cross-device aggregation
VxLAN	VXLAN Layer 2 switching
	VXLAN routing switching
	VXLAN gateway
Ring network protocol	STP/RSTP/MSTP
Security	Hierarchical user management and password protection
	Guest VLAN
	802.1X authentication, centralized MAC authentication
	RADIUS authentication
	MAC address learning limit
	Port isolation
	IP Source guard
	Dynamic ARP inspection, preventing man-in-the-middle attacks and ARP DoS attacks
	IP/Port/MAC binding
Management maintenance	Configuration through CLI, Telnet, and console port
	Ping, Tracert
	Loading and upgrading through XModem/FTP/TFTP
	SNMPv1/v2/v3 and Web-based NMS
	Remote monitoring (RMON ) alarm, event, and history recording
	NTP
ACL	Packet filtering at L2~L4 Traffic classification based on source MAC addresses, destination MAC addresses, source IPv4/IPv6 addresses
	Time range-based ACL
	VLAN-based ACL
	Bidirectional ACL
VLAN	Port-based VLAN
	MAC-based VLAN
	Protocol-based VLAN
	QinQ and selective QinQ
Network Parameters
Multicast	IGMP Snooping /MLD Snooping, Multicast VLAN
Switching Capacity	Whole-Device Performance: 598 Gbps
	Port Performance: 178 Gbps
Packet Forwarding Rate	Whole-Device Performance: 444.91 Mpps
	Port Performance: 130.94 Mpps
QoS	802.1p DSCP remarking
	Flexible queue scheduling algorithms based on ports and queues, including SP, WRR, WFQ and SP+WRR
	Committed access rate (CAR)
	Packet redirection
	Port rate limit (receiving and transmitting)
Software Function
Port Mirroring	Port mirroring
	RSPAN
	Traffic mirroring
Routing Feature	Static routing
	RIPv1/v2 and RIPng
	OSPFv1/v2/v3
	BGP and BGP4+ for IPv6
Power
Power Input	AC : 100V~240V AC, 50/60Hz
	DC : -48V~-60V DC
Power Consumption	Single AC input: 112 W
	Dual AC inputs: 116 W
	Single DC input: 113 W
	Dual DC inputs: 122 W