CBS350-48T-4G Cisco L3 Managed Switch SFP Supported Modular 48 Ports

Cisco CBS350-48T-4G 48-Port L3 Managed Ethernet Switch

The Cisco CBS350-48T-4G is a high-performance Layer 3 managed switch designed for enterprise and business networks. Part of the Catalyst 350 Series, this switch offers advanced features, robust management capabilities, and modular SFP support, ensuring seamless integration into modern IT infrastructures.

Key Features and Specifications

• Manufacturer: Cisco
• Model Number: CBS350-48T-4G
• Product Family: Catalyst 350 Series
• Switch Type: Managed Ethernet Switch

Port and Connectivity Details

• Total Ports: 48 Gigabit Ethernet connections
• Port Composition: 48 x 10/100/1000 Mbps plus 4 x SFP slots
• Switching Throughput: 104 Gbps
• Forwarding Capacity: 77.38 Mpps (for 64-byte frames)
• MAC Address Table Size: 16,000 entries
• Jumbo Frame Support: Up to 2 KB
• Maximum Stackable Units: 4

VLAN, Routing, and Network Management

• Supports up to 4,094 VLANs
• RPVST+ Instances: 126
• MSTP Instances: 8
• Policy-Based Routing (PBR) supported
• Static IPv4 and IPv6 routing capabilities
• IGMPv2, IGMPv3, MLDv2 for multicast management
• STP, RSTP, MSTP, CIDR supported for advanced routing

Advanced Security and Management Features

• Dynamic ARP Inspection (DAI)
• DoS attack prevention
• Broadcast and multicast storm control
• Private VLAN Edge (PVE) for enhanced security
• Link Aggregation Groups (LAG) for high-availability connections
• STP Root Guard, LLDP-MED support
• SmartPort Technology for automated configuration and optimization

Remote Management Protocols

• SNMP (v1, v2c, v3)
• Telnet, HTTP, HTTPS access
• Secure Shell (SSH) and SCP support
• TFTP file transfers
• RADIUS and TACACS+ authentication
• SSL encryption for secure management
• ICMP, DHCP protocols supported

Compliance, Standards, and Certifications

• IEEE 802.3, 802.3u, 802.3z, 802.3ab standards for Ethernet
• IEEE 802.1Q VLAN tagging and 802.1D Spanning Tree
• 802.1p QoS, 802.3x flow control, 802.3ad (LACP)
• 802.1w, 802.1s spanning tree variants
• 802.1x network access control, 802.1ab LLDP
• UL 60950, CSA 22.2, FCC Part 15 Class A compliance
• USGv6 certified

Hardware and Performance

• Processor: 800 MHz ARM CPU for high-speed operations
• Memory: 512 MB RAM
• Flash Storage: 256 MB
• Status LEDs: Power, Link/Activity/Speed indicators

Power and Energy Specifications

• Internal power supply
• Voltage Requirement: AC 120/230 V, 50/60 Hz
• Maximum Power Consumption: 48.64 Watts

Environmental and Operating Conditions

• Operating Temperature Range: 23 °F to 122 °F
• Storage Temperature: -13 °F to 158 °F
• Operating Humidity: 10% – 90% (non-condensing)
• Storage Humidity: 10% – 90% (non-condensing)

Cisco CBS350-48T-4G Managed Switch

The Cisco CBS350-48T-4G is a high-performance Layer 3 managed switch designed for medium to large enterprise networks. This switch provides 48 Ethernet ports with four additional Gigabit SFP uplink ports, delivering robust connectivity and high-speed data transfer capabilities. Built with Cisco’s proven technology, the CBS350-48T-4G ensures reliable performance, scalable network expansion, and comprehensive management features. Its modular SFP support allows for flexible deployment options, making it ideal for network environments that require a combination of copper and fiber connectivity.

Advanced Layer 3 Functionality

The CBS350-48T-4G supports advanced Layer 3 features, which allow efficient routing and traffic management within large and complex network infrastructures. This includes static routing, RIP, OSPF, and inter-VLAN routing capabilities, enabling seamless communication between different network segments. The Layer 3 capabilities reduce network congestion and improve overall data transmission efficiency, making this switch suitable for enterprise networks requiring high performance and low latency.

Enhanced Routing Capabilities

With advanced routing protocols, the Cisco CBS350-48T-4G can automatically adapt to changes in the network, providing dynamic routing updates that optimize data paths. This ensures minimal downtime and faster packet delivery across multiple VLANs and subnets. The integration of Layer 3 routing in a managed switch simplifies network architecture by reducing the need for separate routers, lowering operational complexity and costs.

Inter-VLAN Communication

The CBS350-48T-4G supports inter-VLAN routing, allowing devices on different VLANs to communicate efficiently without the need for external routers. This feature is particularly valuable for organizations that segment networks for security, compliance, or operational efficiency. Inter-VLAN communication ensures that resources can be shared securely across departments while maintaining optimal network performance.

Scalable Connectivity and SFP Modular Design

Equipped with four SFP uplink ports, the Cisco CBS350-48T-4G provides scalable connectivity options for fiber-optic networks. The modular design allows network administrators to choose appropriate SFP modules based on the distance and bandwidth requirements of their deployment. This flexibility ensures that the network can grow alongside the organization’s needs, whether connecting additional switches, servers, or storage devices in campus or data center environments.

Flexible Deployment Options

The combination of 48 Ethernet ports and SFP modular uplinks allows for flexible deployment in both access and aggregation layers of a network. The switch supports full-duplex operation across all ports, enhancing network efficiency and reducing the risk of bottlenecks. Organizations can easily integrate the CBS350-48T-4G into existing network architectures, leveraging both copper and fiber connections to optimize performance.

Fiber Optic Advantages

Using SFP modules, the CBS350-48T-4G can extend network connectivity over longer distances than traditional copper cabling. Fiber optic links offer higher bandwidth, improved signal integrity, and resistance to electromagnetic interference, making them ideal for mission-critical applications and high-traffic network segments. The modular design ensures that upgrades or changes in network topology can be accomplished without replacing the entire switch.

Comprehensive Network Management

Cisco provides multiple management options for the CBS350-48T-4G, including web-based GUI, command-line interface (CLI), and SNMP-based network monitoring. This allows administrators to configure, monitor, and troubleshoot the switch with ease. The web interface provides an intuitive dashboard for real-time statistics, port management, and VLAN configuration, while CLI access enables advanced customization and scripting for network automation.

Centralized Control and Monitoring

Network administrators can use Cisco’s network management solutions to centralize control of multiple CBS350 series switches. This centralized management simplifies routine maintenance, performance monitoring, and firmware updates, reducing operational costs and minimizing the risk of configuration errors. Real-time alerts and notifications provide immediate awareness of network issues, enabling faster response times and improved service reliability.

Security and Access Control

The CBS350-48T-4G includes robust security features such as Access Control Lists (ACLs), 802.1X authentication, and port security to safeguard network resources. These features prevent unauthorized access, mitigate potential threats, and maintain data integrity across the network. VLAN segmentation combined with advanced security policies allows administrators to enforce strict control over sensitive areas of the network, ensuring compliance with organizational or regulatory requirements.

Energy Efficiency and Reliability

Cisco designed the CBS350-48T-4G with energy efficiency and reliability in mind. It features intelligent power management technologies that reduce energy consumption without compromising performance. The switch is engineered to maintain stable operation in demanding environments, with redundant power supply support and high MTBF (Mean Time Between Failures) to ensure continuous network availability.

Optimized Power Utilization

Energy Efficient Ethernet (EEE) support allows the switch to adjust power consumption based on traffic load, reducing operational costs for enterprise networks. By delivering optimal power management, the CBS350-48T-4G supports sustainable IT operations while maintaining high performance for critical network functions.

Redundancy and Resilience

Designed for mission-critical deployments, the CBS350-48T-4G supports link aggregation and redundant uplinks, ensuring uninterrupted connectivity in case of hardware failures or network interruptions. These redundancy features help maintain network uptime and prevent potential service disruptions, which is essential for businesses relying on constant connectivity for operations, communications, and cloud applications.

Integration with Cisco Ecosystem

The CBS350-48T-4G integrates seamlessly with other Cisco networking devices, including switches, routers, and wireless access points. This integration allows organizations to create a unified network architecture with consistent policies, security, and performance standards. Advanced features like Quality of Service (QoS), traffic prioritization, and multicast support enhance network performance for applications such as VoIP, video conferencing, and data-intensive workloads.

Quality of Service and Performance Optimization

The switch includes sophisticated QoS mechanisms to prioritize critical traffic over less time-sensitive data, ensuring that voice, video, and high-priority applications receive the necessary bandwidth for optimal performance. Network administrators can configure traffic shaping, rate limiting, and congestion avoidance policies to maintain smooth operation even under high utilization scenarios.