High-performance 1000M Ethernet Switches

> High Scalability, Protecting Investments
> IRF2
> Complete Security Control Policies
> Diversified QoS Policies
> High Availability
> Environment Friendliness and Energy Saving
Technical Specification
Model DH-S5500-24GF4XF
Switching capacity 256 Gbit/s
Packet forwarding rate 96Mpps
Fixed port 24 x 100/1000Base-X optical port (8 x Combo port)

4 x 10G BASE-X SFP+ optical port

Link aggregation Supports the following link aggregation features:

●GE/10GE port aggregation

●Dynamic aggregation

●Cross-device aggregation

Port Supports the following port features:

●IEEE802.3x-based traffic control (full duplex)

●Storm suppression based on port rate percentage

●PPS-based and BPS-based storm suppression

IRF2 Supports the following IRF2 features:


●Stacking via standard Ethernet interfaces

●Local stacking and remote stacking

●Distributed device management and distributed link aggregation

IP routing Supports static routing.
VLAN Supports the following VLAN features:

●Port-based VLANs

●Protocol-based VLANs

●QinQ and flexible QinQ

●VLAN mapping

●Voice VLANs

●Guest VLANs

ACL Supports the following ACL features:

●Packet filtering on layer 2 (L2) to layer 4 (L4)

●Flow classification based on the source MAC address, destination MAC address, source IP address, destination IP address, TCP/UDP port, IP protocol type, and VLAN

●ACLs based on time ranges

●Global issuance of ACLs based on ports or VLANs

QoS Supports the following QoS features:

●Restriction of the packet receiving rate and packet transmission rate on ports

●Packet redirection

●Eight output queues on each port

●Queue scheduling on ports (SP, WRR, and SP+WRR)

●Re-marking of 802.1p and DSCP priorities of packets

DHCP Supports the following DHCP features:

●DHCP Client

●DHCP Snooping

●DHCP Snooping option82

●DHCP Relay

●DHCP Server

●DHCP auto-config (zero configuration)

Multicast Supports the following multicast features:

●IGMP Snooping/MLD Snooping

●Multicast VLANs

Layer-2 ring network protocol Supports STP, RSTP, MSTP, and PVST.
OAM Supports 802.1ag and 802.3ah.
Mirroring Supports the following mirroring features:

●Port mirroring

●Remote switched port analyzer (RSPAN)

●Traffic mirroring

Security Supports the following security features:

●Level-based user management and password protection

●802.1X authentication and centralized MAC address authentication

●Guest VLANs

●RADIUS authentication

●SSH 2.0

●Port isolation

●Port security

●Restriction on the number of learned MAC addresses

●Protection of source IP addresses

●Detection of ARP intrusion

●IP address + MAC address + port multi-element binding

Management and maintenance Supports the following management and maintenance features:

●Loading and upgrade via XModem, FTP, or TFTP

●Configurations via the CLI, Telnet and Console port

●SNMPv1/v2/v3 and Web-based network management

●RMON alarms, events, and history records

●Intelligent management centers

●Output of system logs, hierarchical alarms, and debugging information


●Ping and Tracert

●Virtual Cable Test (VCT)

●Device Link Detection Protocol (DLDP)

●Loopback detection for ports

●Temperature alarms for the power sources and fans

●CPU protection

Environment friendliness and energy saving Supports the following energy saving features:

●EEE (802.3az)

●Automatic power down function of ports

●Scheduled down function of ports (schedule job)

Input voltage Rate voltage range:

AC: 100 V–240V, 50/60 Hz

DC: –36 V to –72 V

Dimensions (length x width x height) (unit: mm) 440 x 360 x 43.6
Power consumption Static: 30 W (AC) or 38 W (DC)

Full load: 60 W (AC) or 68 W (DC)

Operating ambient temperature 0ºC (32°F)–45ºC (113°F)
Relative operating ambient humidity (non-condensing) 5%–95%