What PoE capabilities does the HPE 5120 24G PoE+ SI Switch offer?

It provides 24 RJ-45 autosensing 10/100/1000 PoE+ ports compliant with IEEE 802.3at, supporting up to 30W per port with a total 370W power budget. This allows powering of devices like APs and cameras without separate supplies, ideal for simplifying enterprise access deployments.

How many uplink ports are available and what type?

The switch includes 4 fixed Gigabit Ethernet SFP ports for fiber uplinks, plus 24 Gigabit PoE+ RJ-45 ports. These enable non-blocking connectivity to core switches, with Auto-MDIX for easy cabling across 10/100/1000 speeds.

What management options are supported?

Management via CLI through Telnet, web browser-based GUI, SNMPv1/v2c/v3, and RMON. Session logging aids troubleshooting, while Ethernet OAM monitors links per IEEE 802.3ah, ensuring reliable administration in enterprise networks.

Does it support VLANs and what is the capacity?

Yes, IEEE 802.1Q with up to 4,094 simultaneous VLAN IDs, including management VLAN for segmentation. This pairs with comprehensive MAC filtering for secure, scalable traffic control in campus or branch environments.

What advanced features improve performance?

Full wire-speed Layer 3 switching, jumbo frames up to 10,000 bytes, IEEE 802.3x flow control, and diversified QoS policies. These ensure high throughput for large data transfers and prioritized traffic in mission-critical setups.

What security features are included?

Comprehensive policies including VLAN-based segmentation, 802.1X authentication support via related protocols, and ACLs for IPv4/IPv6. These protect against unauthorized access and enable fine-grained control in enterprise deployments.

JG091B - HPE JG091B 5120 24G PoE+ SI 24-Port L3 Gigabit Switch

Name: HPE JG091B 5120 24G PoE+ SI 24-Port L3 Gigabit Switch
Brand: HPE
SKU: JG091B

JG091B - HPE JG091B 5120 24G PoE+ SI 24-Port L3 Gigabit Switch | US IT Hardware

Product overview

The HPE 5120 24G PoE+ SI Switch (JG091B) is a managed Layer 3 Gigabit Ethernet switch from the HPE FlexNetwork 5120 SI Series, designed for enterprise access and distribution layers. It features 24 RJ-45 autosensing 10/100/1000 PoE+ ports compliant with IEEE 802.3at, providing a 370W total PoE+ power budget to support power-hungry devices like IP phones and wireless access points. Four fixed Gigabit Ethernet SFP ports enable fiber uplinks, while a console port facilitates management. Key capabilities include full wire-speed multi-layer switching, IEEE 802.1Q VLAN support for up to 4,094 VLANs, jumbo frames up to 10,000 bytes, and IEEE 802.3x flow control. Security features encompass comprehensive policies and VLAN segmentation, with QoS for traffic prioritization. Management options include CLI via Telnet, web GUI, SNMPv1/v2c/v3, and RMON. Ideal for high-density Gigabit to the desktop in campus networks, it ensures reliability with redundancy and Ethernet OAM for link monitoring.

24x Gigabit PoE+ ports with 370W budget for device powering
4x fixed SFP uplinks for high-speed fiber aggregation
Managed L3 with 4,094 VLANs and jumbo frames to 10K bytes
IEEE 802.3x flow control and Auto-MDIX on all ports
SNMPv3, RMON, CLI/GUI for enterprise management
Comprehensive security with ACLs and QoS policies

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Safety Compliance
Manufacturer part #	JG091B
Brand	HPE
Condition	New
Model	5120 24G PoE+ SI
Technology	Full wire-speed multi-layer switching with high reliability and redundancy
PoE+ Support	IEEE 802.3at with 370W total PoE+ power budget
Product Line	HPE FlexNetwork 5120 SI Switch Series
Product Type	Managed Layer 3 Gigabit Ethernet Switch
QoS Policies	Diversified Quality of Service policies for traffic prioritization
Session Logging	Complete session logging for problem identification and resolution

Compatible systems

HPE 5120 24G PoE+ SI is a managed Layer 3 Gigabit Ethernet switch designed for enterprise network access in data centers and server environments

HPE ProLiant
Model: Various rack and tower servers
Form factor: Rack-mount networks
Generation: Gen8 and later
Enterprise network access switch for data center and server cluster connectivity

Best for

Enterprise Access Layer
Provides Gigabit Ethernet to desktops with 24 PoE+ ports and 370W budget, supporting high-density connections via IEEE 802.3at compliance and 4 SFP uplinks for aggregation.
Campus Network Distribution
Delivers wire-speed Layer 3 switching with VLAN support for 4,094 IDs and jumbo frames up to 10K bytes, ideal for segmenting traffic in MANs or campus environments.
PoE+ Device Deployment
Powers up to 30W per port for APs and IP cameras with 370W total budget, simplifying installations by eliminating separate power supplies.
Secure Branch Networking
Implements 802.1X authentication, ACLs, and QoS policies for prioritized, secure traffic in enterprise branches with management VLAN segmentation.

Details

Shipping, warranty & returns

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Security Features	Comprehensive security control policies; VLAN-based traffic segmentation

Supported Protocols	SNMPv1, SNMPv2c, SNMPv3; Remote Monitoring (RMON); Ethernet OAM (Operations, Administration, Maintenance)

Management Interface	CLI via Telnet; Web browser-based GUI

Network & Communication

Flow Control	IEEE 802.3x back pressure for congestion management
VLAN Support	IEEE 802.1Q with 4,094 simultaneous VLAN IDs; Management VLAN for traffic segmentation
MAC Address Table	Supports comprehensive MAC address learning and filtering
Jumbo Packet Support	Up to 10,000-byte frame size for large data transfers

Security Features	Comprehensive security control policies; VLAN-based traffic segmentation

PoE+ Power Budget	370W total PoE+ power delivery capacity

Interface/Ports

Auto-MDIX	Automatic cable type detection on all 10/100/1000 ports
SFP Ports	4 x fixed Gigabit Ethernet SFP ports
Console Port	1 x RJ-45 serial console port
Ethernet Ports	24 x RJ-45 autosensing 10/100/1000 PoE+ ports (IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab 1000BASE-T); Duplex: 10BASE-T/100BASE-TX half or full; 1000BASE-T full only

HPE JG091B 5120 24G PoE+ SI 24-Port L3 Gigabit Switch