FS-1048G is part of the FortiSwitch portfolio for core and data centre networks, with standalone management or management integrated through FortiLink, depending on the chosen architecture.
Key features
Core and data centreIntended use according to the official FortiSwitch family.
FortiLinkManagement integrated with FortiGate when included in the design.
Secure NetworkingNetworking and security addressed within a coordinated architecture.
Technical specifications
Interfaces
Access ports
48 × SFP+/SFP 10/1 GbE
Uplinks
6 × QSFP28/QSFP+ 100/40 GbE
Dedicated management port
1 × Ethernet 10/100/1000 Mb/s
Console
1 × RJ45 serial
Performance and capacity
Switching capacity
2.160 GbpsDuplex capacity; the datasheet states line rate with a minimum packet size of 128 bytes.
Forwarding rate
2.000 MppsPublished duplex value, with 64-byte packets.
Network latency
< 1 µsDatasheet value; packet and load conditions not specified.
MAC address table
64K
Supported VLANs
4K
Ports per aggregation group
Up to 48
Link aggregation groups
Up to the number of ports
Packet buffer
32 MB
RAM
8 GB DDR4
Flash storage
32 MB NOR
Additional storage
128 GB SSD
Queues per port
8
Spanning Tree instances
64
Installation and environment
Form factor and installation
19-inch rack, 1U
Dimensions (H × D × W)
43 × 460 × 438.5 mm
Weight
9.1 kg
Heat dissipation
2,004.3 BTU/h
Operating temperature
0 to 40 °C
Storage temperature
−25 to 70 °C
Relative humidity
10% to 90%, non-condensing
Airflow
Front to rear
Noise / cooling
71 dBA
MTBF
More than 10 years
Power and PoE
Power input
100–240 V AC, 50/60 Hz
Power supply
Two hot-swappable AC power supplies
Power redundancy
Two AC power supplies replaceable without shutdown
Power consumption
585.78 W (maximum)
Management and security
Management
Standalone mode or management integrated with FortiGate through FortiLink
FortiLink Stacking
Automatic interconnections between switches in the FortiLink topology
Link protection
MACsec support
Link high availability
MCLAG
Documentation
Document reference
03/09/2026 (DD/MM/YYYY) · FS-DC-DAT-R45-20260903
Routing
ACLs
3K
IPv4 / IPv6 route entries
16K / 8K
IPv4 / IPv6 host entries
16K / 8K
Multicast route entries
16K
Routing and virtualisation
Static IPv4/IPv6 routing, VXLAN and BGP EVPN; OSPF, RIP, VRRP, BGP, IS-IS, PIM-SSM and VRF subject to the Advanced Features licence
Figures published by the manufacturer. Final sizing depends on the environment, enabled services and traffic profile.
