Question 1

What is the HPE FlexNetwork 5120 SI Switch series?

Accepted Answer

The HPE FlexNetwork 5120 SI Switch series is a family of high-performance, stackable access switches offering Gigabit and 10 Gigabit Ethernet connectivity with advanced Layer 3 features for enterprise and SMB networks.

Question 2

Which port configurations are available on the 5120 SI Switch?

Accepted Answer

The 5120 SI Switch is available in 24- or 48-port Gigabit Ethernet models, with optional 4 or 2 SFP+ 10 GbE uplink ports for flexible network expansion.

Question 3

What is the switching capacity and forwarding rate of the 5120 SI series?

Accepted Answer

The 24-port model delivers up to 176 Gbps switching capacity and 131 Mpps forwarding rate, while the 48-port model offers 176 Gbps and 131 Mpps for high-throughput environments.

Question 4

Does the HPE 5120 SI support stacking, and what is the stack limit?

Accepted Answer

Yes, the 5120 SI supports HPE IRF stacking technology with up to 9 units per stack, enabling up to 576 Gbps of virtual backplane bandwidth and unified management.

Question 5

What Layer 3 routing protocols are supported by the 5120 SI Switch?

Accepted Answer

The 5120 SI provides static routing, RIP, OSPF, VRRP, and Policy-Based Routing, delivering resilient and dynamic Layer 3 capabilities for complex networks.

Question 6

Can the 5120 SI series deliver Power over Ethernet (PoE)?

Accepted Answer

Yes, the 5120 SI PoE+ models supply up to 30 W per port and deliver a total budget of 370 W or 740 W, ideal for IP phones, wireless APs, and surveillance cameras.

Question 7

What management options are available for the HPE FlexNetwork 5120 SI?

Accepted Answer

Management can be performed via CLI, web GUI, SNMP v1/2c/3, RMON, and RESTful APIs, ensuring flexible, scalable, and automated network operations.

Question 8

Which quality of service (QoS) features does the 5120 SI offer?

Accepted Answer

The 5120 SI supports 8 priority queues per port, DiffServ, 802.1p priority tagging, traffic shaping, and policing for end-to-end performance assurance.

Question 9

What security features are built into the 5120 SI Switch series?

Accepted Answer

Built-in security includes 802.1X authentication, Access Control Lists (ACLs), DHCP snooping, IP Source Guard, and dynamic ARP inspection for network protection.

Question 10

How does the 5120 SI integrate with HPE’s FlexNetwork architecture?

Accepted Answer

The 5120 SI seamlessly integrates with HPE’s FlexNetwork fabric, enabling unified policy enforcement, centralized management via HPE IMC, and end-to-end visibility.

Question 11

What are the typical deployment scenarios for the 5120 SI Switch?

Accepted Answer

Ideal deployments include campus access, branch office aggregation, SMB core and edge, PoE for wireless LAN and IP telephony, and small data center top-of-rack.

Question 12

What is the environmental and power specification for the 5120 SI?

Accepted Answer

Operating range is 0–45 °C, power consumption starts at 20 W (non-PoE model), with acoustic levels under 45 dBA, and ENERGY STAR qualified on select models.

Question 13

How do I upgrade the firmware on an HPE FlexNetwork 5120 SI Switch?

Accepted Answer

Firmware upgrades can be performed via the switch’s web GUI, CLI (using TFTP/FTP/SCP), or through HPE Intelligent Management Center (IMC) for automated batch updates.

Question 14

What warranty and support options are available for the 5120 SI series?

Accepted Answer

The 5120 SI includes a lifetime warranty with next-business-day hardware replacement and optional HPE Foundation Care support for 24×7 coverage and mission-critical response.

Question 15

Is the HPE FlexNetwork 5120 SI compatible with third-party SFP and SFP+ modules?

Accepted Answer

Yes, the 5120 SI is interoperable with both HPE and industry-standard SFP/SFP+ transceivers, ensuring flexible connectivity with fiber and copper media.

Question 16

How do I monitor performance and troubleshoot issues on the 5120 SI?

Accepted Answer

Use built-in RMON, sFlow, syslog, and SNMP traps for real-time performance monitoring, plus diagnostic commands such as ping, traceroute, and port mirroring for rapid troubleshooting.

Network Switches HPE Flexnetwork 5120

JG091B (HPE 5120 24G PoE+ (370W) SI Switch)

JE072B (HPE 5120 48G SI Switch)

JE073B (HPE 5120 16G SI Switch)

JE074B (HPE 5120 24G SI Switch)

JG309B (HPE 5120 8G PoE+ (180W) SI Switch)

JG310B (HPE 5120 8G PoE+ (65W) SI Switch)

Questions & Answers

What is the HPE FlexNetwork 5120 SI Switch series?

Which port configurations are available on the 5120 SI Switch?

What is the switching capacity and forwarding rate of the 5120 SI series?

Does the HPE 5120 SI support stacking, and what is the stack limit?