Name: JG851A HP FlexFabric 5900 Series 48x10GBase-T + 4xQSFP+ Layer 3 Managed Switch
Brand: HP
SKU: JG851A
Price: 19492.51 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The JG851A HP FlexFabric 5900 Series switch combines high-density 10GBase-T ports with multi-40GbE QSFP+ uplinks, fitting well into data center racks or enterprise aggregation layers. Its Layer 3 capabilities handle routing alongside switching, offering both flexibility and control in network operations.

General Information
Brand	HP
Condition	Refurbished

Technical Information
Switch Type	Layer 3, Managed Switch, Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	48
Number of Ports	48-Ports
Port Type	10GBase-T, USB Console, Serial Console (RJ-45)
Port Speed	10 Gbps
UpLink Ports	4 x QSFP+ (40 Gbps)
POE Support	No
Switching Capacity	1.28 Tbps
Switch Forwarding Rate	952.4 Mpps
VLAN Support	Yes
Max VLANs Supported	4094
Stackable	Yes
Layer Support	Layer 3
Connector Type	RJ-45,QSFP+

Performance
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	32000

Management and Configuration
Routing Protocols	Static, RIP, RIPng, OSPF, OSPFv3, BGP, VRRP, PIM-SM, IGMP
Remote Protocols	Yes
Management Interfaces	CLI (Console/SSH), Web GUI (HTTP/HTTPS), SNMPv1/v2c/v3, RMON
Security Features	ACLs,802.1X (port auth),RADIUS,TACACS+,SSH,Port security,Storm control,DHCP Snooping,ARP Inspection,IP Source Guard
Management Type	In-band and Out-of-band (CLI, Web GUI, SNMP)
Remote Management Protocol	SSH,HTTPS,Telnet,SNMPv1/v2c/v3
Routing Protocol	Static,RIP,OSPF,BGP,VRRP,IGMP,PIM-SM

Power & Cooling
Fans	Hot-swappable redundant fans
Power	AC 100-240V, 50/60 Hz
Power Supply	Internal AC (supports hot-plug redundant power supplies)

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 45°C

Miscellaneous
Assembly Required	No
Compliance Standards	WEEE, RoHS, CE, FCC, UL, cULus
Compliant Standards	IEEE 802.3,IEEE 802.3u,IEEE 802.3ab,IEEE 802.3ae,IEEE 802.1Q,IEEE 802.1p,IEEE 802.1D,IEEE 802.1w,IEEE 802.3ad

Product Description
The JG851A HP FlexFabric 5900 Series switch delivers robust Layer 3 switching capabilities with 48 10GBase-T ports and 4 QSFP+ uplink ports. It is commonly found in enterprise network cores and data center top-of-rack deployments where reliable, high-throughput connectivity is essential. Built for network administrators and IT professionals, this switch supports complex routing and switching functions, facilitating efficient traffic management and network segmentation. It often serves organizations requiring scalable and manageable network infrastructure. Key Features Supports 48 high-speed 10GBase-T copper ports for flexible device connections Includes 4 QSFP+ ports to handle 40GbE uplinks and inter-switch links Offers Layer 3 routing protocols to optimize network traffic paths Designed for rack mounting to fit standard data center racks Provides advanced management tools for fine-grained network control This switch plays a critical role in building resilient network architectures by delivering consistent throughput and adaptable routing. Its reliable performance and comprehensive management options make it a practical choice for evolving enterprise networks.

Use Cases
The JG851A switch is typically deployed in environments requiring dense 10 Gigabit Ethernet connectivity alongside high-speed uplinks, such as corporate data centers and campus network cores. IT teams managing medium to large scale networks benefit from its advanced routing and management features. How It's Used: Data center top-of-rack switch connecting servers with high-speed 10GBase-T interfaces Enterprise aggregation layer switch consolidating multiple access switches via QSFP+ uplinks Layer 3 routing device supporting internal network segmentation and traffic optimization High-density switch in rack deployments requiring a mix of copper and fiber connectivity Managed switch facilitating network monitoring and configuration for IT administrators By handling both switching and routing tasks efficiently, this switch supports scalable and manageable network designs. It helps maintain optimal performance and operational continuity within demanding IT infrastructures.