The Cisco Business CBS220-24P-4G is a Smart Layer-2 switch from Cisco’s Business 220 Series, targeted at small to medium-sized businesses. It bridges the gap between unmanaged switches (which are simple but limited) and fully managed enterprise switches (which are powerful but more complex/expensive). The CBS220-24P-4G offers a mix of performance, PoE+ (Power over Ethernet Plus), security and QoS features, with a management dashboard and mobile app for simpler deployment and oversight. It is rack-mountable, provides both copper ports and SFP uplinks, and has sufficient PoE budget for deploying wireless access points, IP phones, cameras, etc.
Key Features
- PoE+ Capability: 24 RJ-45 Gigabit Ethernet PoE+ ports, letting you power devices such as VoIP phones, wireless access points, some security cameras, through the switch itself.
- High PoE Power Budget: Up to 195 W available across the PoE+ ports.
- Uplink Flexibility: 4 × 1Gb SFP uplink ports, for fiber or other SFP modules. Useful for stacking or for longer distance connections.
- Layer 2 Switching Features: VLANs (port-based & 802.1Q), Spanning Tree (STP, RSTP, MSTP), Link Aggregation (802.3ad LACP) etc.
- Quality of Service (QoS): Capabilities to prioritize latency-sensitive traffic (voice, video) and manage bandwidth. Automatic voice VLAN etc.
- Security: Port security, IEEE 802.1X authentication, ACLs (Access Control Lists), storm control, BPDU guard, DoS prevention.
- Energy Efficiency: Support for Energy Efficient Ethernet (IEEE 802.3az), Energy Detect, etc. Helps reduce power drain.
- Management Tools: Intuitive web interface, Cisco Business Dashboard, mobile app, possibly SNMP, CLI for more advanced control. Zero-touch provisioning, etc.
- Warranty & Reliability: Comes with a 3-year limited hardware warranty and Cisco support. Tested up for reliable performance.
| Specification | Value |
|---|---|
| Model Name / Number | Cisco Business CBS220-24P-4G |
| Product Type | Smart / Layer-2 Ethernet Switch |
| Ports — RJ-45 (Copper) | 24 × Gigabit Ethernet (10/100/1000Base-T), all with PoE+ capability (802.3at) |
| Uplink / SFP Ports | 4 × 1 Gbps SFP ports |
| Switching Capacity (Backplane Bandwidth) | 56 Gbps |
| Forwarding Rate | ~ 41.66 million packets per second (mpps), for 64-byte frames |
| PoE Power Budget | 195 W total across all PoE+ ports |
| Max Frame Size / Jumbo Frames | Up to 9,216 bytes |
| MAC Address Table Size | ~ 8,192 addresses |
| VLAN Support | Up to 256 VLANs; supports port-based VLANs, 802.1Q tag VLANs, guest VLANs, etc. |
| Spanning Tree | 802.1d STP, rapid STP (802.1w), multiple STP (MSTP, 802.1s) |
| Link Aggregation | IEEE 802.3ad LACP; up to 8 groups with up to 8 ports per group, with more candidates. |
| Security Features | 802.1X; ACLs; port security; broadcast / multicast / unknown unicast storm control; BPDU guard; DoS prevention. |
| Quality of Service (QoS) | Layer-2 QoS features, strict priority and weighted round-robin queuing, automatic voice VLAN. |
| Energy / Power Saving | IEEE 802.3az (Energy Efficient Ethernet); Energy-Detect; efficient cooling design (fans) etc. |
| Power Input / Consumption | AC 110-220 V, 50/60 Hz; maximum power draw around 244.3 W under full load (PoE + all ports) |
| Form Factor / Mounting | Rack-mountable; depth, width etc conforming to 1U style for small-business deployments. |
| Physical Dimensions | ~ 17.3 in × 10.1 in × 1.7 in (≈ 440 × 257 × 44 mm) depending on model series; weight ~ 2.75 kg for the switch without packaging. |
| Operating Temperature / Environmental | Standard operating temperature / humidity ranges for small business switches (0-50 °C, etc.) |
| Warranty | 1-year limited hardware warranty; Cisco provides support options. |
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