S5731-H48T4XC Specification

Fixed port

48 x 10/100/1000Base-T ports, 4 x 10GE SFP+ ports

Dimensions (H x W x D)

43.6 mm x 442 mm x 420mm

Chassis height

1 U

Chassis weight (including packaging)

8.55 kg

Extended slot

One extended slot, support 2 x 40GE, 8 x 10GE Base-T, 2 x 25GE SFP28 or 8 x 10GE SFP+ cards

Power supply type

• 600 W AC (pluggable)

• 150 W AC (pluggable)

• 1000 W DC (pluggable)

Rated voltage range

• AC input (600 W AC ): 100 V AC to 240 V AC, 50/60 Hz

• AC input (150 W AC ): 100 V AC to 240 V AC, 50/60 Hz

• DC input (1000 W DC): -48 VDC to -60 V DC

Maximum voltage range

• AC input (150 W AC ): 90 V AC to 264 V AC, 47 Hz to 63 Hz

• AC input (600 W AC ): 90 V AC to 290 V AC, 45 Hz to 65 Hz

• High-voltage DC input (600 W AC): 190 V DC to 290 V DC (meeting 240 V high-voltage DC certification)

• DC input (1000 W DC): -38.4 V DC to -72V DC

Maximum power consumption

124 W


• Under normal temperature (sound power): 57.5dB (A)

• Under high temperature (sound power): 70.9dB (A)

• Under normal temperature (sound pressure): 47.5dB (A)

Operating temperature

• 0-1800 m altitude: -5°C to 45°C

• 1800-5000 m altitude: The operating temperature reduces by 1ºC every time the altitude increases by 220 m.

Storage temperature

-40°C to +70°C

Relative humidity

5% to 95% (non-condensing)

Surge protection specification (service port)

Common mode: ±6 kV

Surge protection specification (power port)

• AC power port: ±6 kV in differential mode, ±6 kV in common mode

• DC power port: ±2 kV in differential mode, ±4 kV in common mode

Heat dissipation

Air cooling heat dissipation, intelligent speed adjustment, and pluggable fans

Service Features

MAC address table

IEEE 802.1d standards compliance

288K MAC address entries

MAC address learning and aging

Static, dynamic, and blackhole MAC address entries

Packet filtering based on source MAC addresses


4094 VLANs

Guest VLAN and voice VLAN



VLAN assignment based on MAC addresses, protocols, IP subnets, policies, and ports

VLAN mapping

Wireless service

AP access control, AP domain management, and AP configuration template management

Radio management, unified static configuration, and dynamic centralized management

WLAN basic services, QoS, security, and user management

CAPWAP, tag/terminal location, and spectrum analysis

Ethernet loop protection


RRPP ring topology and RRPP multi-instance

Smart Link tree topology and Smart Link multi-instance, providing millisecond-level protection



ERPS (G.8032)

BFD for OSPF, BFD for IS-IS, BFD for VRRP, and BFD for PIM

STP (IEEE 802.1d), RSTP (IEEE 802.1w), and MSTP (IEEE 802.1s)

BPDU protection, root protection, and loop protection






IP routing

Static routes, RIP v1/2, RIPng, OSPF, OSPFv3, IS-IS, IS-ISv6, BGP, BGP4+, ECMP, routing policy

Up to 512K FIBv4 entries

Up to 64K FIBv6 entries


VLAN-Based Spanning Tree (VBST), working with PVST, PVST+, and RPVST

Link-type Negotiation Protocol (LNP), similar to DTP

VLAN Central Management Protocol (VCMP), similar to VTP

IPv6 features

Up to 64K ND entries


IPv6 Ping, IPv6 Tracert, and IPv6 Telnet

ACLs based on source IPv6 addresses, destination IPv6 addresses, Layer 4 ports, or protocol types

Multicast Listener Discovery snooping (MLDv1/v2)

IPv6 addresses configured for sub-interfaces, VRRP6, DHCPv6, and L3VPN


IGMP v1/v2/v3 snooping and IGMP fast leave

Multicast forwarding in a VLAN and multicast replication between VLANs

Multicast load balancing among member ports of a trunk

Controllable multicast

Port-based multicast traffic statistics

IGMP v1/v2/v3, PIM-SM, PIM-DM, and PIM-SSM




Rate limiting in the inbound and outbound directions of a port

Packet redirection

Port-based traffic policing and two-rate three-color CAR

Eight queues per port

DRR, SP and DRR+SP queue scheduling algorithms


Re-marking of the 802.1p and DSCP fields of packets

Packet filtering at Layer 2 to Layer 4, filtering out invalid frames based on the source MAC address, destination MAC address, source IP address, destination IP address, TCP/UDP port number, protocol type, and VLAN ID

Queue-based rate limiting and shaping on ports


Hierarchical user management and password protection

DoS attack defense, ARP attack defense, and ICMP attack defense

Binding of the IP address, MAC address, port number, and VLAN ID

Port isolation, port security, and sticky MAC

MAC Forced Forwarding (MFF)

Blackhole MAC address entries

Limit on the number of learned MAC addresses

IEEE 802.1x authentication and limit on the number of users on a port

AAA authentication, RADIUS authentication, and HWTACACS authentication


SSH V2.0


CPU protection

Blacklist and whitelist

Attack source tracing and punishment for IPv6 packets such as ND, DHCPv6, and MLD packets

Secure Boot








Ethernet OAM (IEEE 802.3ah and IEEE 802.1ag)




BFD for BGP, BFD for IS-IS, BFD for OSPF, BFD for static route


VXLAN L2 and L3 gateways

Centralized and distributed gateway


Configured through the NETCONF protocol

Super Virtual Fabric (SVF)


Working as an SVF Parent to vertically virtualize downlink switches and APs as one device for management.

A two-layer client architecture is supported.

IGMP snooping can be enabled on access switches (ASs) and the maximum number of access users on a port can be configured.

ASs can be independently configured. Services that are not supported by templates can be configured on the parent.

Third-party devices are allowed between SVF parent and clients.

Working as an SVF client that is plug-and-play with zero configuration


Directly coloring service packets to collect real-time statistics on the number of lost packets and packet loss ratio

Collection of statistics on the number of lost packets and packet loss ratio at network and device levels


Two-way IP link performance measurement

Measurement on two-way packet delay, one-way packet loss rate, and one-way packet jitter

Management and maintenance

iStack, with up to 9 member switches in a stack

SNMP v1/v2c/v3


Smart Application Control (SAC)

Web-based NMS

System logs and alarms of different levels




Intelligent O&M

*CloudEngine S5731-H series switches require the VXLAN license or N1 advanced software package to support the VXLAN feature.