Huawei S5731-S48P4X Switches

The Huawei CloudEngine S5731-S series switches were developed based on next-generation high-performing hardware and the Huawei Versatile Routing Platform (VRP). The CloudEngine S5731-S supports simplified operations and maintenance (O&M), intelligent stack (iStack), flexible Ethernet networking. It also provides enhanced Layer 3 features and mature IPv6 features. The CloudEngine S5731-S can be used in various scenarios. For example, it can be used as an access or aggregation switch on a campus network or as an access switch for Metropolitan Area Network.



S5731-S48P4X Specification

Fixed port : 48 x 10/100/1000Base-T (PoE+) ports, 4 x 10GE SFP+ ports
Dimensions (W x D x H) : 442 mm x 420 mm x 43.6 mm
Chassis height : 1 U
Chassis weight (including packaging) : 8.8 kg
Power supply type : 1000 W PoE AC (pluggable)
Rated voltage range : AC input (1000 W AC PoE): 100 V AC to 240 V AC, 50/60 Hz

Maximum voltage range

• AC input (1000 W AC PoE): 90 V AC to 290 V AC, 45 Hz to 65 Hz
• High-voltage DC input (1000 W AC PoE): 190 V DC to 290 V DC (meeting 240 V high-voltage DC certification)

Maximum power consumption

• 132 W (without PD)
• 1750 W (with PD, PD power consumption of 1440 W)


• Under normal temperature (sound power): 62.3dB (A)
• Under high temperature (sound power): 71.8dB (A)
• Under normal temperature (sound pressure): 52.8dB (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℃ to +70℃
Relative humidity : 5% to 95% (non-condensing)
Surge protection specification (service port) : Common mode: ±6 kV

Surge protection specification (power port)

• Differential mode: ±6 kV
• Common mode: ±6 kV

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

MAC address table

IEEE 802.1d standards compliance
32K 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

Ethernet loop protection

RRPP ring topology and RRPP multi-instance
Smart Link tree topology and Smart Link multi-instance, providing millisecond-level protection switching
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)

IP routing

Static routes, RIP v1/2, RIPng, OSPF, OSPFv3, IS-IS, IS-ISv6, BGP, BGP4+, ECMP, routing policy
Up to 16K FIBv4 entries
Up to 8K FIBv4 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 8K 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)

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


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