The Cisco CBS350-48T-4G is a fully managed, fixed-configuration Ethernet switch designed for small to medium business networks. It belongs to the Cisco Business 350 Series of managed switches.
Its strength lies in offering enterprise-style switching features (VLANs, QoS, security, Layer 3 static routing) in a form factor suited for SMB deployment, along with support for Cisco’s management tools (dashboard, GUI, CLI).
Typical use cases include aggregation/distribution layer in smaller networks, connecting multiple access switches, or serving as a core switch for medium LANs where up to 48 copper links plus uplinks are needed.
| Feature Area | Description / Capability |
|---|---|
| Ports / Connectivity | 48 RJ-45 10/100/1000 Mbps (Gigabit) ports + 4 Gigabit SFP uplink (fiber) ports. |
| Switching Capacity / Performance | It offers 104 Gb/s switching fabric (non-blocking) and forwarding capacity around 77.38 million packets per second (mpps) (64-byte) |
| Packet Buffer | 3 MB packet buffer shared across all ports. |
| VLAN / Layer 2 Features | Full VLAN support (802.1Q), up to 4,094 VLANs. Port-based, MAC-based, protocol-based VLANs. Private VLAN, VLAN translation, Q-in-Q, selective Q-in-Q. |
| Link Aggregation | Supports IEEE 802.3ad LACP, up to 8 link aggregation groups, up to 8 ports per group (16 candidate ports) |
| Multicast / IGMP | IGMP snooping (v1, v2, v3), IGMP querier, IGMP proxy. Supports up to 2,000 multicast groups. |
| Layer 3 / Routing | Static routing (IPv4 & IPv6) — up to 990 static routes, up to 128 IP interfaces (e.g. VLAN interfaces) Also supports Policy-Based Routing (PBR) and routing over LAG / VLAN interfaces. |
| QoS / Traffic Management | Supports classification and marking (DSCP, 802.1p), strict priority queuing, weighted queuing, and policies to prioritize latency-sensitive traffic. (Voice VLAN, etc.) |
| Security & Access Control | • 802.1X port-based access control • RADIUS authentication • ACLs (IPv4/IPv6) to control traffic • Private VLAN / protected ports • Loopback detection, UDLD • IP source guard, DHCP snooping, etc. |
| Management / Monitoring | Web GUI, CLI (SSH / Telnet), SNMP (v1/v2c/v3) Dual firmware image support (for safe upgrades) Support for Cisco Business Dashboard / centralized management |
| Stacking | Hardware stacking support (up to 4 units) for models with 10G uplinks (but note: the 4G version is an “uplink = 4x Gigabit SFP” variant, so stacking might be limited to certain variants). |
| Environmental / Reliability | • Operating temperature: –5 °C to 50 °C (23° to 122 °F) • Storage temperature: –25 °C to 70 °C • Humidity: 10% to 90% non-condensing • Acoustic noise: ~29.7 dBA (with 1 fan) • MTBF (at 25 °C): ~1,452,667 hours |
| Certifications | UL 62368, CSA 22.2, CE mark, FCC Part 15 Class A |
| Redundancy / Resilience | Loopback detection, stacking failover, dual firmware images, etc. |
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