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QuickSpecs
Overview
STP BPDU port protection: blocks Bridge Protocol Data Units (BPDUs) on ports that do not require BPDUs, preventing forged
BPDU attacks
STP Root Guard: protects the root bridge from malicious attacks or configuration mistakes
DHCP protection: blocks DHCP packets from unauthorized DHCP servers, preventing denial-of-service attacks
IP Source guard: helps prevent IP spoofing attacks
Dynamic ARP protection: blocks ARP broadcasts from unauthorized hosts, preventing eavesdropping or theft of network data
RADIUS/HWTACACS: eases switch management security administration by using a password authentication server
Convergence
IEEE 802.1AB Link Layer Discovery Protocol (LLDP): is an automated device discovery protocol that provides easy mapping of
network management applications
LLDP-MED: is a standard extension that automatically configures network devices, including LLDP-capable IP phones
LLDP-CDP compatibility: receives and recognizes CDP packets from Cisco's IP phones for seamless interoperation
IEEE 802.3af Power over Ethernet: provides up to 15.4 W per port to PoE-powered devices such as IP phones, wireless access
points, and video cameras
PoE allocations: support multiple methods (automatic, IEEE 802.3af class, LLDP-MED, or user specified) to allocate PoE power
for more efficient energy savings
Voice VLAN: automatically assigns VLAN and priority for IP phones, simplifying network configuration and maintenance
IP multicast snooping (data-driven IGMP): automatically prevents flooding of IP multicast traffic
Device support
Cisco prestandard PoE support: detects and provides power to Cisco's prestandard PoE devices such as wireless LAN access
points and IP phones
Additional information
Green IT and power: use the latest advances in silicon development, shut off unused ports, and use variable-speed fans to
improve energy efficiency
Green initiative support: provides support for RoHS and WEEE regulations
Warranty and support
Lifetime warranty: for as long as you own the product with advance replacement and next-business-day delivery (available in
most countries)†
Electronic and telephone support: limited electronic and telephone support is available from HP; to reach our support centers,
refer to www.hp.com/networking/contact-support; for details on the duration of support provided with your product purchase,
refer to
www.hp.com/networking/warrantysummary
Software releases: to find software for your product, refer to www.hp.com/networking/support; for details on the software
releases available with your product purchase, refer to
†HP warranty includes repair or replacement of hardware for as long as you own the product, with next business day advance
replacement (available in most countries). The disk drive included with HP AllianceOne Advanced Services and Services zl Modules, HP
Threat Management Services zl Module, HP AllianceOne Extended zl Module with Riverbed Steelhead, HP MSM765zl Mobility Controller
and HP Survivable Branch Communication zl Module powered by Microsoft Lync has a five-year hardware warranty. For details, refer to
the Software license and hardware warranty statements at www.hp.com/networking/warranty.
www.hp.com/networking/warrantysummary
DA - 13850 North America — Version 19 — August 19, 2013
HP 5120 EI Switch Series
Page 6

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5120-24g, 5120-24g-poe+ ei, 5120-48g-poe+ ei

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