HP J9028B 24 Ports Managed Switch 1GBPS 1800-2 ProCurve Refurbished

In the world of networking, having a reliable and efficient switch is crucial for seamless communication and data transfer. The HPE J9028B is a 24-port Gigabit Ethernet managed switch designed to meet the demands of modern networks. In this detailed guide, we will explore the key features, specifications, and benefits of the HPE J9028B, ensuring a comprehensive understanding for both novices and seasoned IT professionals.

The HPE J9028B ProCurve switch is a Gigabit Ethernet switch developed by Hewlett Packard Enterprise (HPE). Its model name, J9028B, indicates its specific configuration and features. Let's break down the details:

The switch boasts 24 ports, each capable of delivering data at a rate of 1 Gigabyte per second (1Gbps). This high-speed capability is essential for handling large volumes of data in a network, making it suitable for businesses, data centers, and enterprises.

Being a managed switch means that the HPE J9028B provides administrators with advanced control and configuration options. This allows for customization of network settings, optimization of performance, and enhanced security measures. The management features make it suitable for environments where a high degree of control is required.

Gigabit Ethernet refers to the standard for transmitting Ethernet frames at a rate of 1 Gigabit per second. The HPE J9028B leverages this technology, ensuring that data can be transferred at remarkable speeds. This is especially advantageous in scenarios where large files need to be transmitted quickly, such as in media production or data backup processes.

The switch includes 22 ports that support the 10/100/1000Base-T LAN standard. This indicates compatibility with different Ethernet standards, including 10Mbps, 100Mbps, and 1Gbps. This flexibility allows the switch to seamlessly integrate into various network environments, providing adaptability and scalability.

In addition to the 24 standard ports, the HPE J9028B features 2 uplink ports, also supporting the 10/100/1000Base-T LAN standard. These uplink ports serve as connections to other network devices or higher-level switches, facilitating interconnectivity within a larger network infrastructure.

The HPE J9028B operates as a Layer 2 Ethernet switch, which refers to its position in the OSI model. The OSI model is a conceptual framework used to understand and design computer networks. In the context of Layer 2, the switch operates at the data link layer, responsible for the reliable transmission of data frames between adjacent nodes connected by direct links.

Layer 2 switches make forwarding decisions based on the physical address (MAC address) of devices connected to the network. This allows for more efficient data forwarding compared to traditional hubs or routers.

By filtering and forwarding data only to the relevant devices within the same network, Layer 2 switches help reduce unnecessary network traffic. This results in improved network performance and responsiveness.

Layer 2 switches support features such as VLANs (Virtual Local Area Networks), which can enhance network security by logically segmenting the network and controlling communication between segments.

The managed capabilities of the HPE J9028B contribute significantly to its versatility and adaptability in diverse networking environments. Let's delve into the key aspects of management and configuration:

The switch comes equipped with a user-friendly web-based management interface. This interface allows administrators to configure and monitor the switch using a standard web browser. This graphical interface simplifies the management tasks, making it accessible even to those without extensive command-line interface (CLI) knowledge.

For seasoned IT professionals who prefer a command-line interface for configuration and management, the HPE J9028B provides CLI access. This text-based interface allows for precise and scriptable configuration, providing a more granular level of control over the switch's settings.

The switch supports SNMP, a standard protocol for network management. SNMP enables monitoring and management of network devices, allowing administrators to gather information, set configuration parameters, and receive alerts about network events. This feature enhances the switch's integration into existing network management systems.

Ensuring a quality user experience is paramount in any network. The HPE J9028B supports Quality of Service (QoS) configuration, allowing administrators to prioritize certain types of traffic over others. This is crucial for applications that demand low latency, such as voice and video communication.

Network security is a top priority in today's digital landscape. The HPE J9028B incorporates various security features to safeguard against unauthorized access and potential threats:

Port Security

Administrators can configure port security settings to control access to the network based on MAC addresses, preventing unauthorized devices from connecting.

VLAN Support

The switch supports Virtual Local Area Networks (VLANs), allowing administrators to logically segment the network. This segmentation enhances security by isolating traffic and controlling communication between different segments.

Secure Shell Encryption

For secure remote management, the switch supports SSH encryption, ensuring that management communication is protected from eavesdropping and unauthorized access.

Access Control Lists

ACLs enable administrators to define rules for filtering network traffic based on various criteria, adding layer of security to the network.

• Manufacturer: HP
• Model Number or SKU# J9028B
• Product Type: Switch
• Switch Type: 24 Ports Switch

• Ports Qty : 24 Dbi X Ethernet 10base-T • X Ethernet 1000base-T • X Ethernet 100base-Tx
• Data Transfer Rate: 1 GBPS
• Data Link Protocol: Ethernet • Fast Ethernet • Gigabit Ethernet
• Remote Management Protocol: HTTP
• Connectivity Technology: Wired
• Communication Mode: Full-Duplex • Half-Duplex
• Switching Protocol: Ethernet
• Mac Address Table Size: 8k Entries
• Status Indicators : Link / Status • Activity • Full Duplex / Half Duplex • Power • Speed

• Ram: 64 Kb Sdram
• Flash Memory: 2 Mb Flash
• INTERFACES :
• Uplink/Additional Port(S) : 2 X Sfp/1000base-T Combo

Outline, the HPE J9028B 24-Port 1Gbps ProCurve 1800-24 Gigabit Ethernet Managed Switch is a versatile and reliable networking solution designed to meet the demands of modern network environments. Its high-speed capabilities, advanced management features, and robust security measures make it a valuable asset for enterprises, data centers, and businesses of varying sizes. Whether you are a seasoned IT professional or a novice in networking, the HPE J9028B offers a user-friendly and efficient solution to ensure seamless communication and data transfer in your network.