Fortinet FortiSwitch FS AX3660S

Fortinet FortiSwitch FS AX3660S

FortiSwitch FS-AX3660S is a high-performance, resilient Layer 2/Layer 3 Ethernet switch in the FortiSwitch AX Series designed for demanding campus core, aggregation, and data centre access deployments. It delivers line-rate switching, advanced routing options, and high availability to support modern enterprise networking needs.

Core Capabilities

High-Performance Switching

• Multiple combinations of 1 GbE, 10 GbE, and 40 GbE interfaces.

• High switching capacity and forwarding rates for large traffic loads.

• Very low latency (< 4 µs typical on most ports).

Layer 2 & Layer 3 Features

• VLAN tagging, MSTP/RSTP/RPVST for robust Layer 2 networks.

• Support for static routing and dynamic routing protocols such as OSPF, RIP v2, and BGP4+ (L3 licences required for full functionality).

• Policy-based Routing (PBR), DHCP Relay, VRRP, ECMP, multicast protocols and more on supported models (with L3 Advanced Option License where required).

Resiliency & Availability

• Rapid failover with ring protocol support.

• Gigabit Switch Redundancy Protocol (GSRP) in enabled configurations.

• Stackable architecture to scale port capacity and simplify management.

Enterprise Resilience & Cooling

• Front-to-back and reverse back-to-front airflow options available in different models.

• Hot-swappable power supplies on supported variants.

• Built for continuous operation with mean time between failures (MTBF) of over 10 years.

Deployment & Use Cases

Campus Core / Distribution
Ideal for high-capacity campus aggregation where high port density, strong routing, and robust network availability are required.

Data Centre Access
Supports integration into data centre access layers with support for stacking and high-bandwidth uplinks to distribution/core.

Branch or Regional Hubs
Used in larger branch networks where a mix of 1 GbE and 10 GbE connectivity is required along with advanced Layer 3 capabilities.

Typical Series Functionality (AX3660S)

Ports & Connectivity

• Mix of 1G and 10G access ports.

• Up to 2 x 40 GbE QSFP+ ports for stacking and uplinks (model-dependent).

Layer 2 Features

• Auto-negotiation, VLANs, link aggregation (LACP), spanning tree variants (MSTP/RSTP), loop prevention

• Jumbo frame support, IGMP/MLD snooping

• Quality of Service (802.1p / DSCP priority)

Layer 3 Capabilities (with license)

• Static and dynamic routing

• OSPFv2, RIP v2, BGP4+ support

• PIM multicast, PBR, VRF

• Bidirectional Forwarding Detection (BFD)

Security & Visibility

• Access control lists (ACLs)

• DHCP snooping

• Dynamic ARP Inspection

• 802.1X authentication

• MAC authentication and 802.1X dynamic VLAN assignment

• Port mirroring and sFlow

• IPv4 & IPv6 management and security functions

Management & Monitoring

• CLI (primary management interface)

• SNMP v1/v2c/v3, syslog

• Packet capture and traffic statistics

• NTP and remote management

Typical Hardware & System Specs

(Standard values vary by model within the FS-AX3660S family e.g., 24-port vs 48-port variants)

• Switching capacity: Typically ~288 Gbps

• Packets per second: ~428 Mpps

• MAC address entries: Up to 200k

• VLANs supported: Up to 4k

• ACL entries: Thousands (model dependent)

• Stack ports: Up to 2 x 40 GbE for high-speed stacking/uplinks

• Form factor: 1 RU rack mount

• Power supply: Options for redundant AC/DC; hot-swappable on some

• Operating temp: Enterprise range

Why Choose FortiSwitch FS-AX3660S

FortiSwitch FS-AX3660S is ideal if you need:

• Enterprise access or core switching with robust performance

• High port density with 10 GbE and 40 GbE uplink options

• Rich Layer 3 features for routing (when licensed)

• High availability for resilient networks

• Enterprise visibility, security, and manageability

The AX3660S balances speed, flexibility, and enterprise-grade features for campus core, data-centre access, or large distributed networks.