| 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: ●IRF2 ●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 ●NTP ●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% |
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