SG250-26-K9 Cisco 250 Series 26 Ports Managed Switch

Cisco SG250-26-K9 Ethernet Switch

The Cisco SG250-26-K9 Ethernet Switch is a versatile networking solution designed for small to medium-sized businesses seeking reliable performance and manageable network features. As part of Cisco's renowned 250 Series, this switch delivers high-speed connectivity, flexible port configurations, and Layer 2 management capabilities for modern enterprise networks.

General Specifications

• Manufacturer: Cisco
• Model Number: SG250-26-K9
• Product Series: 250
• Device Type: Managed Ethernet Switch

Detailed Port Information

• Total Number of Network Ports: 26
• Uplink Port: Available
• Stacking Support: Not included
• Expansion Slots: 2 Gigabit Ethernet slots
• Layer Support: Layer 2 switching

Media and Network Standards

• Ethernet Technology: Gigabit Ethernet
• Supported Network Types:
  • 1000BASE-T (Copper)
  • 1000BASE-X (Fiber)
• Media Type: Optical fiber and twisted pair

I/O Expansion Features

• Total Expansion Slots: 2
• Slot Type: SFP (Small Form-Factor Pluggable)
• Shared SFP Slot Support: Yes
• Number of SFP Ports: 2

Power Specifications

• Power Source: Internal power supply
• Redundant Power Support: Not available

Layer 2 Capabilities

• VLAN Support for Segmented Network Traffic
• Advanced QoS Configuration for Traffic Prioritization
• Spanning Tree Protocol to Prevent Network Loops

Cisco SG250-26-K9 Managed Switch

The Cisco SG250-26-K9 is a high-performance managed Ethernet switch designed to deliver reliable connectivity for small to medium-sized businesses. This 26-port switch combines advanced features, robust performance, and flexible management options, making it an ideal choice for enterprise networks, branch offices, and data centers requiring efficient traffic handling and secure data transfer.

Key Features of Cisco SG250-26-K9

The SG250-26-K9 model offers a rich set of features that enhance network reliability, efficiency, and scalability. With support for 24 Gigabit Ethernet ports and 2 SFP uplink ports, this switch ensures high-speed data transmission across multiple devices. Advanced Quality of Service (QoS) allows prioritization of critical traffic, improving performance for voice, video, and data applications. The switch also supports Layer 2 and Layer 3 static routing, VLAN segmentation, and link aggregation to maximize network efficiency.

Performance and Port Configuration

Equipped with 24 10/100/1000 Mbps Ethernet ports, the SG250-26-K9 provides seamless connectivity for computers, servers, and IP-based devices. The additional two SFP Gigabit uplink ports allow fiber connectivity, extending the network reach without compromising performance. Each port supports auto-negotiation, auto-MDI/MDIX, and energy-efficient Ethernet capabilities, reducing power consumption while maintaining high throughput. The switch’s switching capacity and forwarding rate ensure smooth handling of large volumes of traffic without bottlenecks, making it suitable for demanding business environments.

Advanced Security Features

Security is a critical aspect of modern networking, and the Cisco SG250-26-K9 provides multiple layers of protection to safeguard network resources. Access control lists (ACLs) allow administrators to define traffic rules and restrict unauthorized access. 802.1X authentication and port security ensure that only authorized devices can connect to the network. The switch also supports Secure Shell (SSH) and SSL encryption, ensuring that management traffic remains protected from external threats. These advanced security measures help organizations maintain data confidentiality and integrity while reducing the risk of cyber attacks.

Flexible Network Management

The SG250-26-K9 offers comprehensive management options to simplify network administration and monitoring. Web-based management provides an intuitive graphical interface, allowing administrators to configure VLANs, QoS policies, and port settings without complex command-line knowledge. For larger deployments, Simple Network Management Protocol (SNMP) and Cisco Network Assistant support centralized management and monitoring, enabling network teams to quickly detect and resolve issues. The switch also supports RMON and port mirroring for traffic analysis and diagnostics, ensuring that network performance can be continually optimized.

Layer 2 and Layer 3 Capabilities

The SG250-26-K9 provides both Layer 2 switching and limited Layer 3 routing capabilities. Layer 2 features include VLAN support, spanning tree protocol, link aggregation, and multicast filtering. These features allow administrators to segment traffic, prevent loops, and improve overall network performance. Layer 3 static routing capabilities enable inter-VLAN communication and basic routing between network segments, making this switch suitable for businesses that require a combination of switching and routing functionalities within a single device. This dual-layer capability provides flexibility and future-proofing for evolving network infrastructures.

VLAN Segmentation and Traffic Management

VLANs are essential for organizing and managing network traffic efficiently, and the Cisco SG250-26-K9 supports multiple VLAN configurations. Administrators can create separate VLANs for departments, teams, or applications, reducing broadcast traffic and enhancing security. VLAN tagging and port-based VLAN assignments ensure seamless integration with existing network architectures. The switch’s advanced QoS policies allow prioritization of latency-sensitive applications such as VoIP and video conferencing, ensuring consistent performance even during periods of high traffic. These features collectively improve network efficiency and user experience across all connected devices.

Energy Efficiency and Environmental Considerations

The SG250-26-K9 incorporates Cisco EnergyWise technology, which optimizes power usage across the network without compromising performance. Ports automatically enter a low-power state when devices are idle, reducing energy consumption and operational costs. The compact design minimizes heat generation, and quiet operation ensures that the switch can be deployed in office environments without creating excessive noise. These energy-efficient features align with corporate sustainability goals while providing reliable network performance.

Scalability and Future-Proof Design

The Cisco SG250-26-K9 is designed to grow with your network needs. Its 24 Gigabit ports and 2 SFP uplinks provide the capacity to connect a wide range of devices while supporting future expansion. Link aggregation allows multiple physical connections to function as a single logical link, improving redundancy and throughput. The switch’s firmware can be upgraded easily, ensuring compatibility with new features and protocols as networking standards evolve. Its modular design, combined with flexible management options, allows businesses to adapt their network infrastructure to changing requirements without significant additional investment.

Reliable Connectivity and Uptime

High network availability is critical for business continuity, and the SG250-26-K9 delivers reliable uptime through multiple resiliency features. Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) prevent loops and network downtime, while link aggregation and redundant paths enhance fault tolerance. The switch supports hardware-based forwarding, which minimizes latency and ensures fast packet delivery. Continuous monitoring through SNMP traps and alerts enables network teams to identify and address potential issues before they impact performance. This level of reliability is essential for businesses that rely on uninterrupted network connectivity.

Compatibility and Integration

The Cisco SG250-26-K9 is designed for seamless integration with other network devices and infrastructure components. It is fully compatible with Cisco Catalyst switches and other Cisco SG series devices, providing a consistent experience across the network. Support for industry-standard protocols such as IEEE 802.1Q VLAN tagging, IEEE 802.3ad link aggregation, and IPv4/IPv6 routing ensures interoperability with third-party network equipment. This compatibility allows businesses to leverage existing investments while expanding and upgrading their network architecture over time.

Ideal Applications and Deployment Scenarios

The SG250-26-K9 is versatile and can be deployed in various scenarios. Small offices can benefit from its compact design and energy efficiency, while branch offices and distributed enterprise locations can leverage its Layer 3 capabilities for inter-VLAN routing. It is also suitable for classroom networks, retail environments, and professional workspaces that require reliable connectivity for multiple devices. With advanced security, traffic management, and monitoring capabilities, the switch ensures seamless network operations in both simple and complex deployment scenarios.