CBS350-48FP-4G Cisco Managed Layer 3 PoE+ SFP Switch with 48 Ports

Cisco CBS350-48FP-4G Managed Network Switch

The Cisco CBS350-48FP-4G is a powerful enterprise-grade Layer 3 managed Ethernet switch engineered for growing business networks that require high availability, intelligent traffic handling, and robust Power over Ethernet Plus (PoE+) delivery. Designed for seamless control through an intuitive graphical interface, this switch combines performance, scalability, and advanced routing capabilities to support modern IP-based applications.

Manufacturer and Product Identification

• Brand: Cisco
• Series: CBS350 Business Switch Series
• Model Number: CBS350-48FP-4G
• Management Type: Fully Managed via Web-based GUI
• Switching Layer: Layer 3 (Advanced Routing Support)

Ethernet and Uplink Interfaces

• 48 x 10/100/1000 Mbps Gigabit Ethernet ports
• 4 x SFP uplink ports for fiber connectivity
• Optimized for mixed copper and optical network environments

Switching Capacity and Forwarding Performance

• Switching Bandwidth: Up to 104 Gbps
• Forwarding Rate: 77.38 Mpps with 64-byte packets
• Non-blocking architecture for consistent throughput

Power over Ethernet Specifications

• PoE+ support across all 48 Gigabit ports
• Total PoE power budget of up to 740 watts
• Centralized power management for efficient energy use

IPv4 Routing and Interface Support

• Up to 990 static IPv4 routes
• Supports up to 128 IP interfaces
• Ideal for inter-VLAN routing and segmented networks

VLAN and Multicast Management

• Support for up to 4094 VLAN IDs
• Automatic Voice VLAN assignment with optimized QoS
• IGMP Snooping versions 1, 2, and 3
• Handles up to 2,000 multicast groups efficiently

QoS and Traffic Prioritization Features

• IEEE 802.1p Quality of Service support
• Automatic prioritization for voice and video traffic
• Enhanced user experience for latency-sensitive applications

Access Control and Network Security

• Access Control Lists (ACLs) supporting up to 1024 rules
• Granular traffic filtering and policy enforcement
• Improved protection against unauthorized access

Link Aggregation and Expansion

• Port aggregation supporting up to 8 linked switches
• Increased bandwidth and redundancy
• Optimized load balancing across aggregated links

Processing and Memory Architecture

• 800 MHz ARM-based processor
• 512 MB RAM for smooth multitasking
• 256 MB flash memory for firmware and configuration storage

MAC Address Table and Frame Support

• MAC address table supporting up to 16,000 entries
• Jumbo frame support up to 9K bytes
• Standard MTU size up to 2K bytes

Cisco Managed Switching for Expanding Business Networks

The Cisco CBS350-48FP-4G 48 Ports Managed Layer 3 PoE+ SFP Switch is positioned within the Cisco Business 350 Series as a high-capacity, feature-rich switching platform designed for organizations that require dependable performance, enhanced traffic control, and simplified network scalability. This category of managed Layer 3 switches addresses the growing need for intelligent power delivery, advanced routing, and resilient connectivity across access-layer and distribution-layer deployments. By combining Power over Ethernet Plus capabilities with integrated SFP uplink flexibility, this class of switch supports converged networks that deliver data, voice, and video services over a single infrastructure.

Layer 3 Switching Capabilities for Efficient Traffic Management

Managed Layer 3 switches within this category enable organizations to implement static routing and advanced IP services without the complexity or expense of fully modular core switches. The Cisco CBS350-48FP-4G supports inter-VLAN routing, allowing network administrators to segment traffic logically while maintaining high-speed forwarding between departments, floors, or service groups. This design improves overall network efficiency by reducing broadcast traffic and enhancing application responsiveness across connected devices.

Static Routing and Network Segmentation

Layer 3 static routing features provide predictable path selection and simplified control over traffic flows. By enabling routing at the switch level, networks can offload traffic from upstream routers and achieve lower latency for internal communications. This capability is especially beneficial for small and medium-sized enterprises, educational institutions, and branch offices that require reliable routing without complex dynamic protocols.

Optimized Forwarding Performance

High-performance switching fabrics and optimized packet forwarding engines ensure that data is processed efficiently even under heavy loads. This category emphasizes consistent throughput and low latency, supporting bandwidth-intensive applications such as IP telephony, high-definition video conferencing, and cloud-based collaboration platforms. The result is a network foundation that remains responsive during peak usage periods.

Power over Ethernet Plus for Converged Infrastructure

The PoE+ capability of the Cisco CBS350-48FP-4G defines this category as an essential solution for powering modern network endpoints directly through Ethernet cabling. With support for Power over Ethernet Plus standards, switches in this class can supply sufficient power to access points, IP cameras, VoIP phones, and IoT devices, eliminating the need for separate power adapters and simplifying deployment.

Centralized Power Distribution

Centralized PoE management enables administrators to control, monitor, and allocate power resources from a single interface. This approach enhances operational efficiency and ensures that critical devices receive priority power allocation. Intelligent power budgeting supports network growth by allowing new devices to be added without extensive rewiring or electrical modifications.

Support for Wireless and Security Devices

Wireless access points and security cameras often require consistent power and reliable connectivity. Switches in this category are optimized to deliver both, ensuring uninterrupted service across office environments, retail spaces, and campus networks. The ability to power devices over Ethernet also supports flexible placement, allowing organizations to optimize coverage and surveillance without constraints.

Integrated SFP Uplinks for Scalable Network Design

Uplink flexibility is a defining characteristic of managed PoE+ switches in this segment. The inclusion of SFP uplink ports enables fiber-based connections to aggregation switches, routers, or backbone infrastructure. This design supports extended distances, higher bandwidth, and improved resilience compared to copper-only uplinks.

Fiber Connectivity for Long-Distance

SFP uplinks allow organizations to connect buildings, floors, or remote network segments using fiber optic cabling. This capability enhances signal integrity and reduces susceptibility to electromagnetic interference. As a result, networks can maintain stable performance even in electrically noisy environments or across extended campus layouts.

Future-Proof Expansion Options

The modular nature of SFP transceivers provides flexibility for future upgrades. Network administrators can select appropriate fiber modules based on distance and speed requirements, ensuring that the infrastructure can evolve alongside organizational needs. This adaptability makes the category suitable for long-term investment strategies.

Advanced Security Features for Network Protection

Security is a core focus of the Cisco Business 350 Series managed switch category. Built-in protection mechanisms help safeguard data integrity and prevent unauthorized access. These switches support multiple layers of security to ensure that sensitive information remains protected as it traverses the network.

Access Control and Authentication

Port-based access control mechanisms allow administrators to define who and what can connect to the network. Authentication protocols ensure that only authorized devices and users gain access, reducing the risk of intrusion. This is particularly important in environments where multiple user groups share the same physical infrastructure.

Traffic Isolation and Policy Enforcement

Virtual LAN segmentation and access policies enable logical separation of traffic types, such as voice, data, and management traffic. By enforcing policies at the switch level, organizations can maintain compliance with internal security standards and industry regulations. This approach enhances visibility and control over network behavior.

Quality of Service for Business-Critical Applications

Managed Layer 3 PoE+ switches in this category provide comprehensive Quality of Service capabilities to prioritize critical applications. By classifying and managing traffic flows, these switches ensure that latency-sensitive services receive the bandwidth they require.

Voice and Video Optimization

Support for voice and video prioritization ensures clear calls and smooth video streams even during periods of high network utilization. QoS mechanisms reduce jitter and packet loss, delivering a consistent user experience for collaboration tools and unified communications systems.

Application-Aware Traffic Handling

Advanced traffic classification allows administrators to identify and manage application-specific flows. This capability helps ensure that essential business services are not impacted by non-critical traffic, contributing to improved productivity and user satisfaction.

Redundant Design Considerations

Support for link aggregation and failover mechanisms enhances network resilience by providing alternative paths for traffic. In the event of a link failure, traffic is automatically rerouted, minimizing service disruption.

Stable Performance Under Load

Robust hardware components and optimized firmware contribute to stable performance even under sustained workloads. This reliability is essential for environments that depend on constant connectivity, such as call centers, healthcare facilities, and educational institutions.

Deployment Scenarios and Use Case Versatility

The Cisco CBS350-48FP-4G 48 Ports Managed Layer 3 PoE+ SFP Switch category is suitable for a wide range of deployment scenarios. Its combination of port density, power delivery, and routing functionality makes it adaptable to diverse organizational requirements.

Small and Medium Business Networks

For growing businesses, this category provides an affordable yet powerful networking foundation. The ability to support multiple devices, segmented networks, and secure connectivity enables organizations to scale without frequent infrastructure replacements.

Enterprise Branch Offices and Campuses

Branch offices and campus environments benefit from the centralized management and fiber uplink options offered by these switches. The result is consistent policy enforcement and performance across distributed locations.

Energy Efficiency and Operational Cost Control

Energy-efficient design elements contribute to reduced operational costs and environmental impact. Managed PoE+ switches in this category incorporate power-saving features that adjust consumption based on network activity.

Intelligent Power Management

Dynamic power allocation ensures that energy is delivered only where needed, optimizing efficiency without compromising performance. This approach supports sustainability initiatives while maintaining reliable device operation.

Long-Term Value and Investment Protection

By combining advanced features with scalable design, this category delivers long-term value. Organizations can deploy a robust switching solution that supports current requirements while remaining adaptable to future technological advancements.