HP J9779A PoE+ Network Switch

HP J9779A PoE+ Network Switch

The HP J9779A PoE+ Network Switch is a robust Layer‑2 managed switch designed for high‑performance enterprise and campus environments. With 24 integrated Fast Ethernet ports, two Gigabit SFP slots, and comprehensive PoE+ support, it delivers reliable connectivity while simplifying power distribution.

Key Design Features

• Layer‑2 Switching Architecture: The switch operates entirely at Layer 2, providing efficient forwarding of Ethernet frames with minimal latency.
• Power over Ethernet (PoE+) Capability: A total PoE budget of 195 W powers up to 24 PoE+ devices such as IP phones, wireless access points, and security cameras. The internal power supply ensures consistent voltage delivery across all ports.
• High Switching Capacity: With a switching capacity of 12.8 Gbps and a throughput of up to 9.5 Mpps, the device can handle heavy traffic loads without bottlenecks.
• Dual Gigabit SFP Slots: Two mini‑GBIC (SFP) ports support fiber or copper uplinks, enabling flexible network topologies and high‑speed interconnects.
• Jumbo Frame Support: Supports frames up to 9220 bytes, improving efficiency for large data transfers such as video streaming and backup traffic.
• Compact Form Factor: Available in desktop, rack‑mount (1U), or wall‑mount configurations, making it adaptable to various deployment scenarios.

Hardware Specifications

Management and Security Features

The switch offers a rich set of remote management protocols, ensuring secure and flexible administration:

• SNMP v1/v2c/v3: Full support for Simple Network Management Protocol, including authentication and encryption.
• RMON 1/2/3/9: Remote Monitoring capabilities for detailed traffic analysis.
• Telnet & SSH‑2 (Secure Shell): Secure command‑line access with strong encryption.
• HTTP & TFTP: Web interface and firmware transfer via Trivial File Transfer Protocol.
• DHCP Server: Built‑in DHCP server simplifies IP address management for connected devices.
• Authentication Methods: Supports RADIUS, TACACS+, and SSH‑2 for user authentication.
• SSL Encryption Algorithm: Ensures secure communication over the network.

PoE+ Implementation Details

The switch implements IEEE 802.3af/at PoE standards, delivering up to 30 W per port in PoE+ mode. The internal power supply is engineered to maintain voltage stability across all 24 ports, even under maximum load conditions.

Performance Metrics

• Maximum Packet Rate: 9.5 Mpps (million packets per second).
• Switching Capacity: 12.8 Gbps, ensuring high throughput for aggregated traffic.
• Latency: Sub‑microsecond forwarding latency typical of Layer‑2 switches.

Deployment Scenarios

This switch is ideal for:

• Campus LANs requiring PoE+ for wireless access points and VoIP phones.
• Enterprise branch offices where space constraints favor a 1U rack or wall‑mount installation.
• Security systems that rely on PoE+ cameras and sensors.

Environmental Considerations

The HP J9779A is built to operate reliably in environments with high humidity (15 %–95 %) and temperatures ranging from 0 °C to +70 °C. Its internal power supply eliminates the need for external adapters, reducing cable clutter and simplifying installation.

Conclusion

The HP J9779A PoE+ Network Switch combines high throughput, extensive PoE+ support, and robust management features in a compact form factor. Its Layer‑2 architecture, secure remote administration, and flexible deployment options make it a dependable choice for modern network infrastructures that demand both performance and power efficiency.