| Technical Specification |
| Model | DH-S5500-48GT4GF |
| Switching capacity | 256 Gbit/s |
| Packet forwarding rate | 78Mpps |
| Management port | One console port |
| Fixed port | 48 x 10/100/1000Base-T Ethernet port 4 x 1000Base-X Ethernet port |
| Port aggregation | Supports the following port aggregation features: ●LACP ●Manual port aggregation ●A maximum of eight ports in each aggregation group |
| Layer-2 ring network protocol | Supports STP, RSTP, and MSTP. |
| VLAN | Supports the following VLAN features: ●Port-based VLANs (4,000 VLANs) ●MAC address–based VLANs ●Protocol-based VLANs ●GVRP ●QinQ and flexible QinQ ●VLAN mapping ●Guest VLANs |
| DHCP | Supports the following DHCP features: ●DHCP Server ●DHCP Client ●DHCP Relay ●DHCP Snooping ●DHCP Snooping Option82 |
| IPv4 | Supports IPv4 static routing, RIP, and OSPF. |
| IPv6 | Supports the following IPv6 features: ●IPv4 and IPv6 dual-protocol stack ●IPv6 static routing ●ND and PMTUD ●Pingv6, Telnetv6, FTPv6, TFTPv6, and ICMPv6 |
| Multicast | Supports the following multicast features: ●IGMP Snooping and fast leave ●MLD Snooping ●Multicast VLANs |
| Stacking | Supports hybrid stacking of a maximum of 32 devices. |
| Mirroring | Supports port mirroring and flow mirroring. |
| ACL | Supports the following ACL features: ●Packet filtering on L2 to L4 ●Match of the previous 80 bytes in a packet ●ACL definition based on the source MAC address, destination MAC address, source IP address, destination IP address, IP protocol type, TCP/UDP port, TCP/UDP port scope, and VLAN ●ACL issuance based on ports or VLANs ●ACLs based on time ranges ●Hardware-based IPv6 ACL and QoS |
| QoS | Supports the following QoS features: ●Diff-Serv QoS ●Eight output queues on each port ●802.1P/DSCP priority mapping ●Queue scheduling mechanisms ●Priority marking and remarking ●Flow-based packet filtering ●Flow-based redirection ●Flow-based rate limiting ●Voice VLANs |
| Security | Supports the following security features: ●Level-based user management and password protection ●Guest VLANs ●IEEE 802.1X authentication and centralized MAC address authentication ●Rapid EAD deployment ●AAA, RADIUS, and HWTACACS authentication ●Restriction on the number of learned MAC addresses ●MAC address black holes ●SSH 2.0, providing secure encrypted channels for user login ●SSL, ensuring the security of data transmission ●HABP ●Validity verification of SAVI source addresses ●Port isolation ●Rate limiting for ARP packets ●Protection of source IP addresses ●Detection of ARP intrusion ●Defense against DoS attacks ●Suppression of broadcast packets ●Active/Standby data backup mechanism ●IP address + port binding, IP address + MAC address binding, port + MAC address binding, IP address + MAC address + port binding, and IP address + MAC address + port + VLAN binding ●CPU protection |
| Reliability | Supports the following reliability features: ●Ethernet OAM ●CFD ●Smart Link, for providing efficient and reliable link backup, load sharing and rapid convergence for double-uplink networking ●Monitor Link, for monitoring the uplink status and providing more efficient link backup and switching in conjunction with the Smart Link ●DLDP, for detecting unidirectional available links ●RRPP |
| System management | Supports the following system management features: ●Configuration through the Console, AUX Modem, Telnet, and SSH2.0 CLI ●File downloading and uploading over FTP, TFTP, Xmodem, and SFTP ●SNMP v1/v2c/v3 ●RMON ●Virtual Cable Test (VCT) ●TR069 ●NTP clock ●System operation logs ●Cluster management ●Intelligent management centers |
| Ambient humidity | Operation ambient humidity: 5%–95% (non-condensing) Storage ambient humidity: 5%–95% (non-condensing) |
| Environment protection standard | China RoHS, and EEE |
| Weight (full configuration) | ≤ 3.4 kg |
| Static power consumption | 20 W |
| Power consumption (at full load) | ≤ 32 W |
| Input voltage | AC: 100 V–240 V AC, 50/60 Hz |
| Dimensions (length x width x height) (unit: mm) | 440 x 238 x 44 |
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