SF300-48PP-K9 Cisco Ethernet Switch - 48 Ports

Cisco SF300-48PP-K9 Managed Ethernet Switch

The Cisco SF300-48PP-K9 is a high-performance, enterprise-grade managed Ethernet switch designed to support growing business networks that require reliability, scalability, and advanced traffic control. Built within the Cisco Small Business 300 Series, this model delivers a balance of Layer 2 and Layer 3 capabilities, making it suitable for converged voice, video, and data environments.

General Product Specifications

• Brand: Cisco
• Model Number: SF300-48PP-K9
• Device Category: Fully Managed Network Switch
• Switch Type: Layer 3 / Layer 2 Ethernet Switch
• Form Factor: Desktop or Rack Mountable (1U)
• Ethernet Technology: Fast Ethernet

Ethernet Interfaces

• 48 x 10/100 Fast Ethernet RJ-45 ports with PoE+
• 2 x Combo Gigabit SFP ports for fiber or copper uplinks
• 2 x 10/100/1000 Mbps Gigabit Ethernet ports
• 4 x 1000Base-T RJ-45 uplink connections
• 2 x 1000Base-X SFP slots for flexible expansion
• 1 x DB-9 console port for out-of-band management

Power over Ethernet Plus (PoE+) Capabilities

• Total PoE budget of up to 375 watts
• Supports IEEE 802.3af and IEEE 802.3at standards
• Reduces the need for external power adapters

Performance Metrics

• Switching capacity up to 17.6 Gbps
• Forwarding rate of 13.1 million packets per second (64-byte packets)
• 16 MB packet buffer for smooth data flow

MAC Addressing and Frame Support

• MAC address table supporting up to 16,000 entries
• Jumbo frame compatibility up to 9,216 bytes

Routing and Traffic Control

• Static IPv4 routing support
• Access Control Lists (ACLs) with up to 512 rules
• DiffServ-based Quality of Service (QoS)
• Weighted Round Robin (WRR) queuing

Multicast and VLAN Management

• VLAN tagging and segmentation support
• IGMP and MLD snooping for optimized multicast traffic
• Broadcast, multicast, and unicast storm control

Authentication and Encryption

• Secure Shell (SSH and SSH-2) access
• RADIUS and TACACS+ authentication methods
• SSL-based encryption for secure communications

Threat Prevention and Monitoring

• Denial-of-Service (DoS) attack mitigation
• Port mirroring for traffic analysis
• Syslog support for centralized event logging

Supported Management Protocols

• SNMP v1, v2c, and v3
• RMON levels 1, 2, 3, and 9
• HTTP and HTTPS web-based management
• CLI management via console or SSH
• Telnet and TFTP support

Firmware and Network Optimization

• Firmware upgradable for future enhancements
• Energy Efficient Ethernet for reduced power consumption
• LLDP for improved device discovery

Redundancy and Loop Protection

• Spanning Tree Protocol (STP)
• Rapid Spanning Tree Protocol (RSTP)
• Multiple Spanning Tree Protocol (MSTP)
• Link Aggregation Control Protocol (LACP)

Supported IEEE Standards

• IEEE 802.3, 802.3u, 802.3ab, and 802.3z
• IEEE 802.1D, 802.1Q, 802.1P, 802.1W, 802.1S
• IEEE 802.1X and 802.1AB (LLDP)
• IEEE 802.3af, 802.3at, and 802.3az
• IEEE 802.3ad for link aggregation

Memory and System Indicators

• 128 MB RAM for stable multitasking
• 16 MB flash memory for firmware storage
• LED indicators for system status, link activity, and port speed

Power Specifications

• Internal power supply
• Supports AC input voltage of 120V / 230V
• Frequency range: 50–60 Hz

Cisco SF300-48PP-K9 48-Port Ethernet Switch Category

The Cisco SF300-48PP-K9 48 Ports Ethernet Switch belongs to the Cisco Small Business 300 Series, a portfolio engineered to deliver dependable Layer 2 and basic Layer 3 managed switching for growing enterprise networks, branch offices, retail environments, educational institutions, and service-oriented infrastructures. This category focuses on managed Fast Ethernet switches with integrated Power over Ethernet capabilities, designed to simplify network expansion while maintaining strong performance, centralized management, and operational reliability. The SF300-48PP-K9 model stands out due to its high port density, advanced feature set, and support for converged data, voice, and video deployments.

This category addresses the needs of organizations seeking scalable network access solutions that balance affordability with enterprise-grade management. The Cisco SF300-48PP-K9 Ethernet switch category emphasizes secure connectivity, intelligent traffic handling, and efficient power delivery, ensuring that multiple endpoint devices such as IP phones, wireless access points, surveillance cameras, and networked workstations can operate seamlessly within a unified infrastructure.

48-Port Fast Ethernet Switching Architecture

The Cisco SF300-48PP-K9 category is built around a 48-port Fast Ethernet switching architecture that supports high-density access layer deployments. Each Ethernet interface is optimized for consistent throughput, reduced latency, and stable link performance. This design ensures that connected devices maintain reliable communication even under sustained network load. The architecture is particularly beneficial for environments that rely on Fast Ethernet for cost efficiency while still requiring advanced traffic management and segmentation.

Within this category, switching performance is enhanced by hardware-based forwarding mechanisms that minimize packet loss and improve overall responsiveness. The SF300-48PP-K9 platform supports simultaneous data streams across all ports, making it suitable for office floors, classrooms, hospitality venues, and multi-department facilities where numerous endpoints demand uninterrupted connectivity.

Optimized Port Density for Access Layer Networks

The 48-port configuration offered in this category allows network designers to consolidate access connections into fewer devices, reducing rack space requirements and simplifying cable management. This density supports structured cabling layouts and helps streamline network expansion without requiring frequent hardware additions. As part of the Cisco SF300 family, this switch category aligns with modular network designs that prioritize scalability and ease of deployment.

Consistent Throughput and Low Latency

Switches within this category are engineered to maintain predictable throughput across all ports. The Cisco SF300-48PP-K9 supports efficient frame forwarding and intelligent buffering, which helps prevent congestion during peak usage periods. Low latency performance ensures that time-sensitive applications such as VoIP calls and video streams remain clear and uninterrupted, supporting modern collaboration and communication requirements.

Integrated Power over Ethernet Plus Capabilities

The Cisco SF300-48PP-K9 Ethernet Switch category is defined by its integrated Power over Ethernet Plus functionality, enabling both data and electrical power to be delivered over standard Ethernet cabling. This capability significantly reduces infrastructure complexity by eliminating the need for separate power adapters or electrical outlets for connected devices. The category is particularly suited for powering IP telephony systems, wireless access points, and IP-based security solutions.

Power management within this category is designed to allocate energy intelligently across ports, ensuring optimal usage of the available power budget. Network administrators can prioritize critical devices and maintain operational continuity even when multiple powered endpoints are connected simultaneously.

Efficient PoE Power Budget Allocation

The SF300-48PP-K9 category includes mechanisms for monitoring and controlling power consumption at the port level. This enables precise management of PoE resources and helps prevent over-allocation or unexpected power interruptions. The ability to dynamically distribute power enhances reliability and supports long-term infrastructure planning.

Support for Converged Network Devices

By combining data and power delivery, this category facilitates converged network environments where voice, video, and data services operate over a single Ethernet infrastructure. The Cisco SF300-48PP-K9 is well-suited for organizations transitioning to unified communications or expanding wireless coverage without extensive electrical upgrades.

Managed Switching and Network Control Features

The Cisco SF300-48PP-K9 48 Ports Ethernet Switch category emphasizes comprehensive management features that provide administrators with full visibility and control over network operations. Managed switching capabilities include support for VLAN segmentation, quality of service configuration, and traffic monitoring, enabling efficient network optimization and security enforcement.

This category is designed to support both web-based graphical interfaces and command-line management, allowing flexibility in administration based on organizational expertise and operational preferences. Centralized configuration simplifies deployment and ongoing maintenance, reducing the total cost of ownership.

Virtual LAN Segmentation and Traffic Isolation

VLAN support within this category enables logical separation of network traffic, improving security and performance. Administrators can isolate departments, devices, or application types without deploying additional physical hardware. The Cisco SF300-48PP-K9 supports multiple VLAN configurations, making it adaptable to diverse network topologies.

Quality of Service for Application Prioritization

Quality of Service capabilities are a defining feature of this category, allowing critical applications to receive priority handling over less time-sensitive traffic. The SF300-48PP-K9 Ethernet switch supports traffic classification and scheduling mechanisms that help ensure consistent performance for voice and video communications.

Security-Oriented Switching Category Design

Security is a core focus of the Cisco SF300-48PP-K9 category, addressing the growing need for protected access layer networks. This category incorporates features that help safeguard against unauthorized access, network attacks, and internal threats. By implementing access controls and traffic monitoring, organizations can maintain compliance and protect sensitive data.

The managed nature of this category allows for granular security policy enforcement, ensuring that only approved devices and users can connect to the network. These capabilities are essential for business environments handling confidential information or operating under regulatory requirements.

Port-Based Access Control Mechanisms

The SF300-48PP-K9 category supports port-level security features that restrict network access based on defined criteria. This helps prevent unauthorized devices from gaining connectivity and reduces the risk of network compromise at the access layer.

Secure Management and Monitoring Functions

Secure management protocols and monitoring tools are integral to this category, enabling administrators to track network activity and identify potential issues proactively. These features enhance operational visibility and support timely response to security events.

Layer 2 and Basic Layer 3 Feature Set

The Cisco SF300-48PP-K9 Ethernet Switch category provides a balanced combination of Layer 2 switching and basic Layer 3 routing capabilities. This hybrid feature set supports efficient traffic forwarding within VLANs while enabling limited inter-VLAN routing for simplified network designs.

By incorporating routing intelligence at the access layer, this category reduces dependency on external routing devices and streamlines network architecture. This approach is particularly beneficial for small to medium-sized networks that require efficient segmentation without complex infrastructure.

Advanced Layer 2 Switching Capabilities

Layer 2 features within this category include spanning tree protocols, link aggregation, and multicast support. These capabilities enhance network resilience, improve bandwidth utilization, and ensure efficient handling of group communications.

Basic Layer 3 Routing Support

Basic Layer 3 functions allow the SF300-48PP-K9 category to perform static routing between VLANs, improving traffic flow and reducing latency. This functionality supports streamlined network designs and simplifies deployment for organizations with moderate routing requirements.

Scalability and Deployment Flexibility

The Cisco SF300-48PP-K9 category is designed to support scalable network growth, accommodating additional devices and increased traffic without significant reconfiguration. High port density, PoE capabilities, and managed features combine to create a flexible access layer solution that adapts to evolving business needs.

This category supports deployment in rack-mounted environments, wiring closets, and centralized network rooms, making it suitable for a wide range of physical infrastructures. Its adaptability ensures long-term value and compatibility with existing network components.

Integration with Existing Cisco Network Ecosystems

The SF300-48PP-K9 category integrates seamlessly with other Cisco networking products, enabling cohesive management and interoperability. This compatibility simplifies network expansion and supports unified operational workflows.

Reliability and Operational Efficiency

Reliability is a defining attribute of the Cisco SF300-48PP-K9 Ethernet Switch category. Hardware design, firmware stability, and enterprise-grade components contribute to consistent uptime and dependable performance. This reliability is essential for business-critical networks that require continuous operation.

Operational efficiency is further enhanced by simplified management interfaces and automation-friendly features that reduce administrative overhead. These characteristics make the category suitable for organizations with limited IT resources as well as those with dedicated network teams.