Cisco SG550XG-24F-K9 24 Ports Stackable Switch Gigabit Refurbished

The SG550XG-24F-K9 is a cutting-edge small business-managed switch that offers advanced features suitable for various networking needs. In this comprehensive review, we will delve into the key specifications, functionalities, and benefits of this device, focusing on its 24 ports, Small Form-factor Pluggable Plus (SFP+), 10GBase-T, Layer 3 capabilities, Optical Fiber support, Secure Shell (SSH), TACACS+, rack-mountable design, and Gigabit Ethernet. Whether you are an IT professional or a small business owner looking for a reliable networking solution, this review will help you understand the SG550XG-24F-K9's capabilities.

The SG550XG-24F-K9 comes equipped with 24 ports, providing ample connectivity for various devices within your network. This feature is especially beneficial for small businesses that require a scalable and versatile networking solution. Each port is designed to handle high-speed data transfers, ensuring smooth communication between connected devices.

One notable feature of the SG550XG-24F-K9 is its support for Small Form-factor Pluggable Plus (SFP+) technology. SFP+ allows for the interchangeability of fiber and copper connectors, providing flexibility for network expansion. This feature is essential for businesses with evolving networking needs, enabling them to adapt to different connectivity requirements without the need for extensive hardware upgrades.

The inclusion of 10GBase-T technology in the SG550XG-24F-K9 ensures high-speed data transfer, supporting the ever-increasing demand for bandwidth in modern networks. This feature is particularly beneficial for businesses dealing with large file transfers, video conferencing, and other data-intensive tasks. The 10GBase-T capability enhances network performance and responsiveness, contributing to an efficient and productive work environment.

The SG550XG-24F-K9 is equipped with Layer 3 capabilities, adding advanced routing functionality to the switch. This allows for more intelligent traffic management within the network, enhancing overall performance and efficiency. Businesses with complex network architectures or those requiring subnet segmentation will find the Layer 3 capabilities of this switch particularly advantageous.

In addition to traditional copper-based connections, the SG550XG-24F-K9 supports Optical Fiber, enabling long-distance connectivity without compromising data transfer speeds. Optical Fiber is known for its reliability and resistance to electromagnetic interference, making it suitable for environments where stable and secure connections are crucial. This feature enhances the switch's versatility and ensures optimal performance across diverse networking scenarios.

Security is a paramount concern in modern networking environments, and the SG550XG-24F-K9 addresses this by incorporating Secure Shell (SSH) and Terminal Access Controller Access-Control System Plus (TACACS+). SSH provides secure remote access to the switch, encrypting data during transmission and safeguarding against unauthorized access. TACACS+ adds an extra layer of authentication and access control, enhancing overall network security and protecting sensitive information.

The SG550XG-24F-K9 features a rack-mountable design, making it easy to integrate into standard server racks. This design is space-efficient, allowing businesses to optimize their physical infrastructure. The rack-mountable form factor is particularly beneficial for data centers and businesses with limited space, providing a tidy and organized networking setup.

Gigabit Ethernet support in the SG550XG-24F-K9 ensures reliable and fast network connections. Each port is capable of handling data at gigabit speeds, providing a robust foundation for data-intensive applications and ensuring low-latency communication. The Gigabit Ethernet capability is essential for businesses that prioritize network performance and require a stable and responsive infrastructure.

Now, let's explore the features of the Cisco SG550XG-24F-K9 in more detail.

• The switch's 24 SFP+ ports deliver high-speed connectivity, essential for data-intensive tasks and applications. Whether it's large file transfers, video conferencing, or database operations, these ports ensure that the network can handle the demands of modern business operations.

• The inclusion of Layer 3 functionality distinguishes the SG550XG-24F-K9 from traditional Layer 2 switches. This allows the switch to make intelligent routing decisions based on IP addresses, optimizing data traffic and improving overall network performance. Businesses with complex network structures or those requiring inter-VLAN routing will find this feature particularly beneficial.

• The rack-mountable design of the switch enhances the overall organization of network infrastructure. This is especially advantageous for small businesses that may not have dedicated network rooms. The switch can be seamlessly integrated into existing rack setups, minimizing the physical footprint and maintaining a tidy and efficient workspace.

• The ability to stack switches is a crucial feature for businesses anticipating growth or those that need to expand their network capacity. The SG550XG-24F-K9 can be easily integrated into a stack of switches, simplifying management and providing a scalable solution. This feature is particularly valuable for businesses with dynamic network requirements.

As a managed switch, the SG550XG-24F-K9 offers a range of advanced management features. These include:

• QoS settings allow administrators to prioritize specific types of network traffic, ensuring that critical applications receive the necessary bandwidth for optimal performance. This is especially important in environments where different types of data compete for network resources.

• Virtual LANs (VLANs) enable the segmentation of a network into smaller, isolated segments. This enhances security and improves network efficiency by isolating broadcast domains. The switch's VLAN configuration capabilities provide flexibility in network design and management.

• Security is a top priority in any network environment. The SG550XG-24F-K9 supports various security protocols, including port security, access control lists (ACLs), and 802.1X authentication. These features contribute to a robust security posture, protecting the network from unauthorized access and potential threats.

The Cisco SG550XG-24F-K9 is well-suited for various use cases, including:

• SMBs with growing network requirements can benefit from the scalability and advanced features of the switch. Its compact size and rack-mountable design make it an ideal choice for businesses with limited space.

• Businesses dealing with data-intensive tasks, such as media production or data analytics, will appreciate the high-speed connectivity provided by the SFP+ ports. The Layer 3 functionality further optimizes data traffic in these demanding environments.

• The switch's stackable configuration and advanced management features make it suitable for deployment in remote offices and branches. This ensures consistent network performance and centralized management, even in distributed business environments.

• Schools and universities can benefit from the switch's scalability and advanced features. The ability to stack switches is particularly advantageous for educational institutions with evolving networking requirements.

The switch comes with 24 Small Form-factor Pluggable Plus (SFP+) ports, offering high-speed connectivity. These ports support 10GBase-T technology, ensuring seamless data transfer at remarkable speeds. The choice of SFP+ ports provides flexibility for optical fiber connections, allowing for a diverse range of network configurations.

• Layer 3 Functionality: The SG550XG-24F-K9 is not just a Layer 2 switch; it extends its capabilities to Layer 3, making it suitable for more complex networking scenarios. Layer 3 functionality allows the switch to make routing decisions, enhancing network efficiency and performance.
• Rack-mountable Design: The switch is designed to be rack-mountable, providing an organized and space-efficient solution for network infrastructure. This feature is particularly advantageous for businesses with limited physical space, allowing for easy integration into existing rack setups.
• Gigabit Ethernet Stackable: With the capability to be stacked, the Cisco SG550XG-24F-K9 enables businesses to scale their networks efficiently. This is crucial for organizations experiencing growth, as it simplifies network management and enhances overall performance.
• Managed Switch Capabilities: The switch is equipped with advanced management features, allowing administrators to have greater control over the network. This includes features such as Quality of Service (QoS) settings, VLAN configuration, and security protocols, contributing to a more secure and optimized network environment.

Performance and Reliability

• The Cisco SG550XG-24F-K9 is designed to provide high performance and reliability for small business networks. It has a switching capacity of up to 2.6 Tbps, meaning it can handle a large amount of network traffic without experiencing delays or bottlenecks. With 24 SFP+ ports, it provides high-speed connectivity for devices that require 10 Gigabit Ethernet speeds, such as servers, storage systems, and network-attached printers. The switch also supports Quality of Service (QoS) which allows you to prioritize different types of network traffic, such as voice and video, to ensure that delay-sensitive applications perform well. Link Aggregation Control Protocol (LACP) enables you to bundle several physical ports together to form a single logical channel, providing increased bandwidth and redundancy. The switch also supports FlexStack-Plus, which allows you to stack up to 8 switches together, creating a single, unified system with a single IP address and management interface, providing flexibility and easy management. Additionally, it supports industry-standard protocols such as SNMP and RMON, which allow for the monitoring and troubleshooting of network issues. All of these features together will help increase the reliability of the network and provide higher availability for business-critical applications.

• Manufacturer: Cisco
• Part Number or SKU # SG550XG-24F-K9
• Product Type: Stackable Managed Switch

• Total Number of Ports: 24
• Stack Port Yes
• Port/Expansion Slot Details: 24 x 10 Gigabit Ethernet Expansion Slot

• Media Type Supported: Optical Fiber
• Ethernet Technology: 10 Gigabit Ethernet
• Network Technology: 10GBase-X

• Number of Total Expansion Slots: 24
• Expansion Slot Type: SFP+
• Number of SFP+ Slot:s 24

• Layer Supported: 3
• Manageable: Yes

• Routing Protocol: RIP, IGMPv2, IGMP, VRRP, IGMPv3, static IPv4 routing, static IPv6 routing, MLDv2, MLD, CIDR
• Remote Management Protocol: SNMP 1, RMON, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, CLI, SCP
• Encryption Algorithm: MD5, SSL

• Secure Shell (SSH), RADIUS, TACACS+

Features

• Flow control, DHCP support, BOOTP support, ARP support, IGMP snooping, Syslog support, DoS attack prevention, DiffServ support, Weighted Round Robin (WRR) queuing, Broadcast Storm Control, Multicast Storm Control, Unicast Storm Control, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Virtual Route Redundancy Protocol (VRRP) support, Multiple Spanning Tree Protocol (MSTP) support, DHCP snooping, Access Control List (ACL) support, Quality of Service (QoS), DHCP server, Dynamic ARP Inspection (DAI), STP Root Guard, Uni-Directional Link Detection (UDLD), LLDP support, DHCP relay, Link Aggregation Control Protocol (LACP), Port Security, IP-MAC binding, DHCP client, Energy Efficient Ethernet, Management Information Base (MIB), Multicast VLAN Registration (MVR), Generic Attribute Registration Protocol (GARP), Generic VLAN Registration Protocol (GVRP), Denial of Service (DoS), 802.1x authentication, 16MB packet buffer, Type of Service (ToS), DiffServ Code Point (DSCP) support, IP source guard, Bridge protocol data unit (BPDU), Internet Control Message Protocol (ICMP)

Compliant Standards

• IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ab (LLDP), IEEE 802.3az

Memory

• RAM: 512 MB
• Flash Memory: 256 MB

Power Description

• Power Source: Power Supply
• Features: Redundant Power System (RPS) connector
• Frequency Required: 50/60 Hz
• Nominal Voltage: AC 120/230 V

Miscellaneous

• Rack-Mount Kit and Rubber Feet
• DB-9 to RJ45 Serial Cable
• Quick Start Guide
• Pointer Card with China RoHS
• EU Directives 1999/5/EC Compliance Information

Environmental Parameters

• Min Operating Temperature: 32 °F
• Max Operating Temperature: 122 °F
• Humidity Range Operating: 10 - 90% (non-condensing)
• Min Storage Temperature: -4 °F
• Max Storage Temperature: 158 °F
• Humidity Range Storage: 10 - 90% (non-condensing)

Finally, the Cisco SG550XG-24F-K9 Small Business Switch is a robust and versatile networking solution tailored to the needs of modern businesses. Its combination of high-speed connectivity, Layer 3 functionality, rack-mountable design, and advanced management features make it a compelling choice for small and medium-sized enterprises seeking reliable and scalable networking infrastructure. As businesses continue to adapt to evolving technological landscapes, the SG550XG-24F-K9 stands out as a reliable and future-proof investment in building a resilient network foundation.