CBS220-48P-4G-NA Cisco 48-Ports GE PoE 4x1G SFP Managed Switch.

Cisco CBS220-48P-4G-NA Managed Ethernet Switch

The Cisco CBS220-48P-4G-NA is a high-performance managed 2-layer Gigabit Ethernet switch designed for modern business networks. Featuring 48 PoE+ ports and 4 Gigabit SFP uplinks, this switch delivers reliable connectivity, advanced security, and flexible management options for small to medium-sized enterprises.

General Specifications

• Manufacturer: Cisco
• Model Number: CBS220-48P-4G-NA
• Device Type: Smart Managed Switch
• Total Ports: 52 (48 PoE+ + 4 Gigabit SFP)
• Enclosure Type: Rack-mountable
• Ethernet Type: Gigabit

Performance and Capacity

• Switching Capacity: 104 Gbps
• Forwarding Performance: 74.38 Mpps (64-byte packets)
• MAC Address Table Size: 8192 entries
• Buffer Capacity: 12 MB
• Jumbo Frame Support: Up to 9216 bytes
• VLANs Supported: 256
• MSTP Instances: 16
• ACL Rules: 512

Power Over Ethernet (PoE) Features

• PoE Standard: PoE+
• PoE Budget: 382 W
• Port Power Capability: 30 W per PoE+ port
• Energy Efficiency: Energy Efficient Ethernet (IEEE 802.3az)

Advanced Routing and Switching Protocols

• IGMP v1/v2/v3 and MLD v1/v2 support for efficient multicast traffic
• Spanning Tree Protocols: MSTP, RSTP, STP
• Loop Prevention and Network Stability Features
• DiffServ Support for Quality of Service (QoS) optimization

Security and Encryption

• SSH and SSH2 for secure command-line access
• RADIUS and TACACS+ for authentication and authorization
• SSL encryption for secure web management
• Port security, MAC address filtering, and broadcast storm control

Management and Monitoring

• SNMP v1, v2c, v3 for remote network monitoring
• Telnet and CLI support for advanced management
• Syslog and RMON for proactive alerting
• Dual firmware images for secure and flexible updates

Additional Features

• BootP, DHCP client, and automatic media-dependent interface crossover (Auto-MDIX)
• IGMP snooping, LLDP, LLDP-MED, and GVRP for network discovery and VLAN registration
• Access Control Lists (ACLs) and Type of Service (ToS) support
• Head-of-line (HOL) blocking prevention and weighted round robin (WRR) scheduling
• Auto voice VLAN and guest VLAN support for optimized VoIP and secure guest access
• Loopback detection, BPDU guard, and duplicate address detection (DAD)

Compliance and Standards

• IEEE 802.3, 802.3u, 802.3z, 802.3ab, 802.3af, 802.3at, 802.3ad (LACP)
• IEEE 802.1d, 802.1p, 802.1q, 802.1w, 802.1s, 802.1x
• IEEE 802.3x flow control and 802.3az Energy Efficient Ethernet
• IEEE 802.1AB (LLDP)

Hardware Specifications

• RAM: 256 MB
• Flash Memory: 64 MB
• Status Indicators: System, Link/Activity/Speed LEDs

Expansion and Connectivity Options

• 48 x 10/100/1000 Base-T PoE+ RJ-45 ports
• 4 x 1000Base-X SFP uplink ports for fiber connectivity
• Supports Link Aggregation and LACP for high-bandwidth connections

Power Supply and Operational Requirements

• Power Source: Internal power supply
• Voltage Requirement: AC 100-240 V, 50/60 Hz
• Maximum Power Consumption: 478.2 W
• Fan: Single internal fan for efficient thermal management

Use Cases and Deployment Scenarios

• Optimized for small and medium-sized enterprise networks
• Ideal for IP surveillance cameras, VoIP phones, and wireless access points
• Supports centralized management and remote monitoring
• Flexible VLAN and QoS features enhance business-critical traffic

Benefits of Cisco CBS220-48P-4G-NA

• High-density PoE+ support for connected devices
• Secure management with advanced authentication and encryption
• Reliable performance with 104 Gbps switching capacity
• Energy-efficient design to reduce operational costs
• Easy integration with existing network infrastructure

Cisco CBS220-48P-4G-NA Managed Ethernet Switch 

The Cisco CBS220-48P-4G-NA is a high-performance managed Layer 2 Ethernet switch designed to deliver reliable, scalable, and secure connectivity for modern enterprise networks. With 48 Gigabit Ethernet ports and 4 SFP uplinks, this switch provides an ideal solution for businesses looking to optimize network efficiency, support high-density deployments, and leverage the power of Power over Ethernet (PoE) for connected devices. Its 2-layer switching capability ensures fast data transfer, minimal latency, and seamless integration with existing network infrastructures.

Advanced Port Configuration and Connectivity

Equipped with 48 Gigabit Ethernet ports, the CBS220-48P-4G-NA supports both copper and fiber connections, enabling a flexible and versatile networking environment. The inclusion of 4 1G SFP uplink ports allows for high-speed connections to aggregation switches or core network devices, enhancing overall bandwidth capacity. These ports also facilitate long-distance connectivity, making the switch suitable for larger office spaces, campus networks, and multi-floor deployments.

Power over Ethernet (PoE) Capabilities

One of the most notable features of the CBS220-48P-4G-NA is its robust PoE functionality. By supplying power directly through Ethernet cables, this switch eliminates the need for separate power sources for devices such as IP phones, wireless access points, security cameras, and other PoE-enabled devices. The switch supports PoE+ standards, ensuring sufficient power delivery to all connected devices while maintaining network efficiency and stability. PoE management features allow network administrators to allocate power intelligently, prioritize critical devices, and prevent overload situations.

Optimized Layer 2 Switching Features

Designed as a Layer 2 managed switch, the CBS220-48P-4G-NA delivers advanced switching capabilities including VLAN segmentation, link aggregation, port mirroring, and spanning tree protocols. VLANs help to separate network traffic, enhance security, and improve bandwidth utilization across departments or functional areas. Link aggregation combines multiple physical connections into a single logical link, providing higher throughput and redundancy. Spanning tree protocols ensure loop-free network topology, which is critical for maintaining uninterrupted connectivity in complex network environments.

Network Security and Control

Security is a critical concern for modern business networks, and the Cisco CBS220-48P-4G-NA offers comprehensive features to safeguard network traffic. Access control lists (ACLs) provide granular filtering of network packets, allowing administrators to control which devices or users can access specific resources. Port security mechanisms prevent unauthorized devices from connecting to the network, while 802.1X authentication ensures that only verified devices gain access. Additionally, the switch supports storm control and broadcast suppression, protecting the network from malicious traffic spikes or broadcast storms.

Energy Efficiency and Cost Management

The CBS220-48P-4G-NA is engineered with energy efficiency in mind. Cisco’s Energy Efficient Ethernet technology reduces power consumption during periods of low network activity, lowering operational costs and minimizing environmental impact. PoE power management further optimizes energy usage by adjusting power delivery based on device requirements. These features make the switch a cost-effective choice for organizations seeking sustainable and eco-friendly networking solutions.

Comprehensive Management Options

Managing the CBS220-48P-4G-NA is simplified through multiple interfaces and tools. The switch supports intuitive web-based graphical user interface (GUI), command-line interface (CLI), and Simple Network Management Protocol (SNMP) for centralized monitoring and control. Network administrators can easily configure port settings, monitor traffic performance, and apply firmware updates remotely. Advanced features like automatic discovery and zero-touch provisioning allow rapid deployment in large-scale environments, reducing administrative overhead and ensuring consistent configurations across multiple devices.

Scalability and Network Expansion

Scalability is a key advantage of the CBS220-48P-4G-NA, allowing businesses to grow their network infrastructure without compromising performance. The combination of 48 access ports and 4 SFP uplinks supports high-density deployments and uplink flexibility for future expansion. Organizations can integrate additional switches or higher-capacity uplinks as traffic demands increase, ensuring long-term investment protection. The switch’s stacking capabilities allow multiple units to operate as a single logical switch, simplifying management and enhancing redundancy for mission-critical applications.

Enhanced Quality of Service (QoS)

For networks that prioritize multimedia traffic, the CBS220-48P-4G-NA offers advanced QoS features to ensure smooth and uninterrupted data transmission. Traffic classification, prioritization, and scheduling mechanisms guarantee that latency-sensitive applications such as VoIP, video conferencing, and real-time streaming receive the required bandwidth. Administrators can implement hierarchical QoS policies to optimize network performance based on application type, user group, or device category, enhancing overall user experience and productivity.

Reliability and Redundancy Features

Reliable network performance is achieved through a combination of redundant power supply options, link aggregation, and spanning tree protocols. The CBS220-48P-4G-NA supports dual power input for continuous operation in case of primary power failure, ensuring critical devices remain powered. Link aggregation provides both bandwidth enhancement and redundancy, allowing traffic to continue flowing even if a physical link fails. Spanning tree and Rapid Spanning Tree Protocol (RSTP) prevent network loops and maintain uninterrupted connectivity across complex network topologies.

Integration with Cisco Ecosystem

The CBS220-48P-4G-NA seamlessly integrates with other Cisco solutions, enabling organizations to leverage unified management and advanced network analytics. Compatibility with Cisco Business Dashboard and Cisco Network Assistant provides centralized monitoring, troubleshooting, and configuration capabilities. Integration with Cisco Umbrella cloud security further enhances threat protection by extending security policies beyond the local network. This level of interoperability ensures that businesses can deploy a fully optimized and secure networking ecosystem.

Application in Enterprise Environments

The versatility and performance of the CBS220-48P-4G-NA make it suitable for various enterprise scenarios. In office networks, it provides reliable connectivity for computers, printers, IP phones, and wireless access points. In campus networks, the switch facilitates high-speed aggregation of departmental switches while maintaining PoE support for access points and surveillance devices. Its robust security, management, and QoS features also make it an excellent choice for industries requiring stringent data protection and high-performance networking, such as healthcare, education, and financial services.

Future-Proof Networking Solution

Investing in the CBS220-48P-4G-NA ensures long-term network readiness. The switch supports current Gigabit Ethernet standards while providing flexibility for future upgrades, such as higher-capacity uplinks or additional PoE-powered devices. Its Layer 2 capabilities, combined with advanced management, security, and QoS features, make it adaptable to evolving network requirements. Organizations can confidently deploy this switch knowing it will continue to support growth, performance, and reliability for years to come.

Technical Specifications and Performance Metrics

The CBS220-48P-4G-NA delivers robust performance metrics designed to meet the demands of high-traffic enterprise networks. With a switching capacity of several gigabits per second, low latency, and hardware-based forwarding, it ensures smooth data transmission for all connected devices. The switch supports full-duplex communication on all ports, enhancing throughput and reducing collisions. PoE budget allocation, VLAN support, and traffic monitoring tools provide administrators with the necessary controls to maintain optimal network health.

Comparative Advantage in Layer 2 Networking

Compared to other Layer 2 switches in its class, the CBS220-48P-4G-NA offers a unique combination of high port density, PoE support, advanced management, and seamless Cisco ecosystem integration. Its energy efficiency, security features, and scalability make it a preferred choice for organizations seeking a balance between cost-effectiveness and enterprise-grade performance. The switch stands out as a reliable solution for businesses aiming to deploy high-performance, flexible, and future-ready network infrastructures.