FS-S5850-24B4C, 24-Port Ethernet L3 Switch, 24 x 25Gb SFP28, with 4 x 100Gb QSFP28, Support MPLS&MLAG

The FS-S5850-24B4C is a layer 3 switch with wire-speed 24x 10G/25G SFP28 and 4x 40G/100G QSFP28 (split to 4x 10G/25G) ports, delivering 2 Tbps switching capacity and 1488 Mpps forwarding rate.

It features redundant hot-swappable power supplies, smart fans, and dual-flash chips for enhanced reliability and performance.
With support for MLAG, BGP EVPN VXLAN, PTP v2, MPLS, LACP, and more, the switch meets the scalability, security, and application demands of modern networks.

It is ideal for next-generation core, aggregation, and data center environments, as well as medium to large campus deployments, offering the flexibility of enterprise top-of-rack and service provider environments with seamless migration from 10GbE to 25GbE or from 10GbE/40GbE uplinks to 100GbE.

Specifications

• Ports: 24x 25Gb SFP28 | 4x 100Gb QSFP28
  
• Switching Capacity: 2 Tbps
  
• Latency: 0.7μs
  
• Forwarding Rate: 1488Mpps
  
• Power Supplies: 2 (1+1 Redundancy) Hot-swappable
  
• Packet Buffer: 36MB
  
• Fans: 4 (2+2 Redundancy) Hot-swappable, Front-to-Back
  
• Jumbo Frame: 9600
  
• Dimensions (HxWxD): 1.7''x17.4''x17.8'' (44x442x451mm)
  
• MTBF: >198,000 Hours
  
• Weight: 13.11lbs (5.95kg)
  
• MAC Address: 120K
  
• Input Voltage: 100-240VAC; 50-60Hz
  
• IPv4/IPv6 Routes: 56K/4K
  
• Input Current: 7A (MAX) at 100VAC – 127VAC
  
• Number of VLANs: 4K
  
• Max. Power Consumption: 130W
  
• DRAM: 2GB
  
• Operating Temperature: 0 to 45°C (32 to 113°F)
  
• Flash Memory: 8GB
• 24x 10G/25G SFP28, 4x 40G/100G QSFP28 (Split to 4x 10G/25G)
  
• 1+1 Hot-swappable Power Supplies, 2+2 Smart Fans
  
• Support MLAG, BGP, EVPN VXLAN, PTP, LACP, MPLS, VRRP, QinQ
  
• PTP TC, BC, and OC Modes for Precise Time Synchronization
  
• ACLs, 802.1X, AAA, DAI, DHCP Snooping, etc. for Security
  
• WEB/CLI/SNMP/SSH/sFlow/RMON for Flexible Management
• Switching Capacity: 2 Tbps
  
• Forwarding Rate: 1488Mpps
• Power Supplies: 2 (1+1 Redundancy) Hot-swappable, AC
• Max. Power Consumption: 130W
• MLAG: YES
• EVPN-VXLAN: YES
• 802.1X: YES

Please Note: Matching the American standard power cord as default. If you need other standard power cords, please note in the order.

Software Spotlights

Resiliency and High Availability

• Redundant, hot-swappable power supplies and fans
• Multi-Chassis Link Aggregation (MLAG)
• IEEE 802.3ad Link Aggregation (LACP)
• MPLS, LDP, MPLS-L2VPN, MPLS-L3VPN, VxLAN-BGP-EVPN, IPFIX
• Virtual Router Redundancy Protocol (VRRP)
• Support BFD for fast link failure detection
• Graceful protocol restart (OSPFv2/v3, BGP)
• Ethernet Ring Protection Switching (ERPS)
• Precision Time Protocol BC, TC, and OC Mode
• Ethernet OAM, Ethernet Linear Protection Switching (ELPS)

Security

• IEEE802.1X RADIUS authentication, SSH, ACLs, TACACS+
• IPv4 Source Guard
• ARP inspection, MAC whitelisting
• Prevent DDOS attack
• Control Plane Policing (CoPP)
• IPv4/IPv6 DHCP Snooping
• BPDU Guard, Root Guard, Loop Guard, Anti TC-BPDU attack

Management

• User login: console, SSH, telnet
• Industry-standard CLI, Web-based management
• 10/100/1000Mbps management port
• SNMP v1/v2/v3, RMON
• Traffic monitoring: sFlow
• DHCP server, and DHCP Relay
• RPC-API for Software Defined Network (SDN)

Connectivity Solutions

25G/100G Ports for Flexible Deployment in Multiple Scenarios
24x 25G, 4x 100G ports have low-latency and non-blocking performance, 25G ports for access switches or servers, 100G uplinks for core switches.

1+1 Hot-Swappable Power Supplies and 2+2 Redundant Fans
The dual power supplies can be replaced without shutting down the system, and the variable-speed fans with front-to-back airflow automatically adjust fan speed to reduce power draw.

MLAG Realizes Uninterrupted Services
["MLAG delivers device-level link redundancy and load balancing by aggregating links across two switches, enhancing network performance, reliability, and service continuity."]

EVPN VXLAN Enables Scalable and Flexible Network Connectivity
EVPN VXLAN provides a scalable solution for interconnecting campuses, data centers, and public clouds, simplifying Layer 2/3 deployments and enhancing network operations.

PTP (Precision Time Protocol) Provides Sub-microsecond Accuracy
BC/TC/OC modes can be flexibly configured based on factors such as the scale of the network and the application scenario to meet the time accuracy requirements in different network environments.

MPLS Helps Establish Point-to-point Connections
MPLS enables small and medium-sized operators to create tunnels for their users, which helps build point-to-point connections and achieves intercommunication between user networks.

Multiple Management Methods for Easy Network Maintenance
Supporting WEB, CLI, SSH, SNMP, and other methods to deliver a streamlined experience for the device's convenient maintenance and network management without additional cost.