J9311A HP 48-Ports Managed Switch RJ-45 ProCurve PoEGigabit Refurbished

The HP J9311A is a powerful networking device designed to meet the demands of modern business environments. This rack-mountable managed switch combines advanced features with reliable performance, making it an ideal choice for organizations seeking efficient network management. In this detailed exploration, we will delve into the key attributes of the HP J9311A, focusing on its 48-port RJ-45 ProCurve Power over Ethernet (PoE), Gigabit Ethernet Layer 3, and 4 shared Small Form-Factor Pluggable Plus (SFP+) ports.

The HP J9311A is built with a sturdy and compact design, allowing for efficient rack mounting. Its physical structure is well-suited for data centers and server rooms where space optimization is crucial. The rack-mountable configuration ensures easy integration into existing network setups.

One of the standout features of the HP J9311A is its 48 ports, each supporting ProCurve Power over Ethernet (PoE). This capability simplifies the deployment of network devices such as IP cameras, VoIP phones, and wireless access points, eliminating the need for separate power sources. The PoE support enhances flexibility and reduces cable clutter in networking setups.

The switch boasts Gigabit Ethernet Layer 3 technology, providing high-speed data transfer and efficient communication between devices. The Layer 3 functionality enables the switch to make routing decisions based on IP addresses, enhancing network efficiency and facilitating seamless data flow.

In addition to the 48 RJ-45 ports, the HP J9311A features 4 shared Small Form-Factor Pluggable Plus (SFP+) ports. These versatile ports allow for the connection of fiber optic modules, extending the reach of the network and providing scalability for future expansion. The shared nature of these SFP+ ports adds to the switch's flexibility, allowing users to adapt to different connectivity requirements.

With 48 Gigabit Ethernet ports, the HP J9311A delivers high-speed connectivity for data-intensive applications. This is particularly beneficial for businesses with demanding network requirements, such as those dealing with large file transfers, video streaming, and other bandwidth-intensive tasks.

The Gigabit Ethernet Layer 3 functionality of the switch enables it to operate at the network layer, making routing decisions based on IP addresses. This enhances the overall efficiency of the network by reducing broadcast traffic and facilitating faster data transfer between subnets.

The HP J9311A is well-suited for enterprise-level networking needs. Its combination of high port density, Gigabit Ethernet speeds, and Layer 3 routing makes it capable of handling the demands of large-scale businesses with diverse connectivity requirements.

For organizations implementing IP-based surveillance systems, the PoE support in the J9311A simplifies deployment. Cameras and other surveillance devices can be powered directly from the switch, reducing the need for additional power outlets and cabling.

In Voice over Internet Protocol (VoIP) telephony setups, the switch's PoE capability ensures that IP phones receive both data and power through a single Ethernet cable. This not only streamlines installation but also enhances reliability.

The rack-mountable design and high-performance features make the J9311A an ideal choice for data center environments. Its ability to support both copper and fiber connections allows for flexible integration into diverse network architectures.

The HP J9311A is equipped with advanced management features that empower network administrators to optimize and secure their networks. From VLAN support to Quality of Service (QoS) configuration, the switch provides a comprehensive set of tools for tailoring the network to specific organizational needs.

Virtual LANs (VLANs) enable the segmentation of a network into distinct broadcast domains, enhancing security and improving network performance. The HP J9311A's support for VLANs allows administrators to logically group devices based on criteria such as department or function, providing greater control over network traffic.

Quality of Service (QoS) is crucial for prioritizing network traffic and ensuring that critical applications receive the necessary bandwidth. The HP J9311A offers QoS features that allow administrators to prioritize certain types of data, such as voice or video, over others. This ensures a consistently high level of service for mission-critical applications.

Small Form-Factor Pluggable Plus Flexibility

The inclusion of 4 shared Small Form-Factor Pluggable Plus (SFP+) ports enhances the scalability of the HP J9311A. These ports accommodate fiber optic modules, allowing organizations to extend their networks over longer distances without sacrificing performance. The shared nature of these ports provides flexibility, allowing users to choose between copper and fiber connectivity based on their specific requirements.

Robust Construction for Long-Term Reliability

The HP J9311A is built with reliability in mind, featuring a robust construction that ensures long-term performance. This reliability is crucial for businesses looking to invest in networking infrastructure that will support their operations for years to come. The durable design of the switch contributes to its overall cost-effectiveness and minimizes the need for frequent replacements or upgrades.

Compatibility with Industry Standards

To ensure compatibility with a wide range of networking equipment and technologies, the HP J9311A adheres to industry standards. This commitment to standards compliance enhances interoperability and makes it easier for organizations to integrate the switch into their existing network environments.

• Manufacturer: HP
• Part Number or SKU# J9311A
• Product Type: Switch
• Switch Type: Rack-Mountable Switch

• Enclosure Type: Rack-mountable - 1u
• Ports: 48 X 10/100/1000 + 4 X Shared Sfp
• Power Over Ethernet (Poe): Yes
• Routing Protocol : Rip-1, Rip-2, Static Ip Routing, Igmpv3
• Remote Management Protocol: SNMP 1, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Telnet, SNMP 3, SNMP 2c, Http, Https, Ssh
• Encryption Algorithm: SSL
• Authentication Method: Secure Shell (Ssh), Radius, Tacacs+, Secure Shell V.2 (Ssh2)
• Processor: 1 X Freescale PowerPC 8540: 666 Mhz
• Ram : 256 Mb - Ddr Sdram
• Flash Memory: 4 Mb Flash
• Status Indicators: Port Status, Power

• Power Over Ethernet (PoE): Yes
• Power Device: Power Supply
• Voltage Required: Ac 120/230 V ( 50/60 Hz )
• Power Consumption Operational: 638 Watt

Outline, the HP J9311A 48-Ports RJ-45 ProCurve Power Over Ethernet (PoE) Gigabit Ethernet Layer 3 Managed Switch is a feature-rich and reliable networking solution. With its 48 PoE-enabled ports, Gigabit Ethernet Layer 3 capabilities, and 4 shared SFP+ ports, the switch offers a versatile platform for building and managing modern networks. Its performance, advanced management features, and scalability make it well-suited for the dynamic needs of businesses seeking a robust and future-proof networking solution. Whether used in data centers, enterprise environments, or small to medium-sized businesses, the HP J9311A delivers the performance and flexibility required for today's demanding network infrastructures.