JL256A HPE 48 Ports Switch
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HPE JL256A 48G PoE+ 4SFP+ 48 Ports Managed Rack Mountable New

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Part Number#: JL256A
List Price was: $19300.00
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Short Description:
JL256A 48-Ports 4 Small Form-Factor Pluggable Plus (SFP+) 10/100/1000Base-T Power Over Ethernet Plus (PoE+) Manageable Layer 3 Rack-Mountable Gigabit Ethernet Networking Switch | Made by HPE | Brand New 3 Years Warranty
Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product Specification About the HPE JL256A Ethernet

The HPE JL256A is a cutting-edge managed switch designed for businesses and enterprises seeking a robust networking solution. With 48 ports, Power over Ethernet Plus (PoE+), and 4 SFP+ ports, this switch is a powerhouse for connectivity. In this guide, we will delve into specific technical details, focusing on the Jumbo Frame Size, IPv4 and IPv6 Routing Table Entries, and the MAC Address Table Size.

Understanding Jumbo Frames

Jumbo Frames refer to Ethernet frames with a payload size larger than the standard 1500 bytes. The HPE JL256A 48 ports support a Jumbo Frame Size of 9220 bytes. This increased frame size can enhance network efficiency by reducing the overhead associated with transmitting smaller frames. It is particularly beneficial in scenarios where large amounts of data need to be transferred quickly, such as in data center environments or high-performance computing clusters.

Reduced Overhead

With Jumbo Frames, the ratio of data to overhead is more favorable, as a larger portion of each frame is dedicated to actual data. This results in a more efficient use of network bandwidth and can lead to improved overall network performance.

Lower CPU Utilization

The use of Jumbo Frames can contribute to lower CPU utilization on networking equipment, as processing fewer, larger frames requires less computational overhead than handling a greater number of smaller frames. This can be particularly advantageous in resource-intensive applications.

Enhanced Throughput

By allowing for the transmission of larger amounts of data in each frame, Jumbo Frames can significantly increase network throughput. This is crucial for applications that demand high-speed data transfer, such as large file transfers or streaming multimedia.

IPv4 Routing Table Entries: 10,000

The IPv4 Routing Table Entries specification of 10,000 reflects the switch's capacity to handle and manage a substantial number of IPv4 routes. The routing table is a critical component of a managed switch, facilitating the efficient forwarding of data between different subnets or networks.

IPv6 Routing Table Entries: 5000

Similarly, the IPv6 Routing Table Entries specification of 5000 highlights the switch's capability to manage IPv6 routes. As the internet transitions towards IPv6 to accommodate the growing number of connected devices, having robust IPv6 routing capabilities is essential for future-proofing network infrastructure.


The significant number of IPv4 and IPv6 routing table entries allows the switch to scale and accommodate the routing needs of large and complex networks. This is particularly valuable for enterprises experiencing growth or those with diverse networking requirements.

Network Segmentation

A high number of routing table entries enables effective network segmentation, allowing for the creation of multiple subnets. This enhances security and network management by logically dividing the network into smaller, more manageable segments.

Support for Diverse Applications

The switch's capacity for a large number of routing table entries ensures support for diverse applications and services. Whether it's voice and video communication, data storage, or IoT devices, the switch can efficiently route traffic to its destination.

Importance of MAC Address Tables

MAC (Media Access Control) addresses are unique identifiers assigned to network interfaces. The MAC Address Table on a switch is crucial for efficiently forwarding data frames to the correct destination within the local network. The HPE JL256A boasts a MAC Address Table Size of 32,000 entries, indicating its ability to manage and store a vast number of MAC addresses.

Device Recognition

With a MAC Address Table Size of 32,000 entries, the switch can recognize and keep track of a multitude of devices connected to the network. This is essential for accurately directing data to the intended recipients.


The switch's ability to support a large number of MAC addresses enhances scalability. As organizations expand their network infrastructure, having a switch that can accommodate a growing number of connected devices is paramount.

Reduced Network Latency

Efficient MAC address management contributes to reduced network latency. The switch can quickly identify the destination of data frames, minimizing the time it takes for information to traverse the network.

Main Information about the HPE JL256A

  • Manufacturer: HPE
  • Part Number or SKU# JL256A
  • Device Type: Layer 3 Manageable Switch

Technical Information of 48 Ports Switch

  • Device Type: Managed Stackable Switch - 48 Ports - L3
  • Enclosure Type: Rack-mountable - 1U
  • Subtype: Gigabit Ethernet
  • Ports: 48 x 10/100/1000 (PoE+) + 4 x 1 Gigabit / 10 Gigabit SFP+ (uplink)
  • Power Over Ethernet (PoE): PoE+
  • Performance: Throughput: 112 MPPS | Switching Capacity: 176 Gbps | Latency (1 Gbps): 3.8 ?s | Latency (10 Gbps): 1.6 ?s
  • Capacity: Jumbo Frame Size: 9220 | IPv4 Routing Table Entries: 10,000 | IPv6 Routing Table Entries: 5000
  • MAC Address Table Size: 32k Entries
  • Routing Protocol: OSPF, RIP, RIP-1, RIP-2, BGP, IGMPv2, IGMP, OSPFv2, Static IP Routing, IGMPv3, OSPFv3, Static IPv4 Routing, Static IPv6 Routing, RIPng, MLD, CIDR
  • Remote Management Protocol: SNMP 1, SNMP 2, RMON 1, SNMP, Telnet, SNMP 3, SNMP 2c, SSH, SSH-2, CLI, XRMON
  • Encryption Algorithm: MD5, SSL
  • Authentication Method: RADIUS, PAP, CHAP, TACACS, TACACS+


  • Flow Control, Full Duplex Capability, DHCP Support, BootP Support, ARP Support, VLAN Support, IGMP Snooping, Syslog Support, DiffServ Support, IPv6 Support, SNTP Support, sFlow, Spanning Tree Protocol (STP) Support, Multiple Spanning Tree Protocol (MSTP) Support, Access Control List (ACL) Support, Quality of Service (QoS), Jumbo Frames Support, DHCP Server, STP Root Guard, Uni-directional Link Detection (UDLD), LLDP Support, Link Aggregation Control Protocol (LACP), Management Information Base (MIB), MAC Address Lockout, Dynamic ARP Protection, DHCP Protection, Dynamic VLAN Support (GVRP), Multiple VLAN Registration Protocol (MVRP), Neighbor Discovery Protocol (NDP), Class of Service (CoS), Type of Service (ToS), OpenFlow Support, CPU Protection, Internet Control Message Protocol (ICMP), ICMP Router Discovery Protocol (IRDP), Virtual Extensible LAN (VXLAN), Management Information Base (MIB) II
  • Compliant Standards: IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ad, IEEE 802.1v, IEEE 802.1AB (LLDP), IEEE 802.3at, IEEE 802.3az, IEEE 802.1ax
  • Processor: 1 x ARM Cortex-A9 - 1.016 GHz
  • RAM: 1 GB - DDR3 SDRAM
  • Flash Memory: 4 GB
Expansion / Connectivity of Ethernet Switch
  • Interfaces: 48 x 1000Base-T - RJ-45 - PoE+ | 4 x Gigabit / 10Gbit LAN - SFP+ | 1 x Serial (Console)
  • Expansion Slots: 1 (total) / 1 (free) x Expansion Slot
  • Installed Modules Qty (max): 0 (installed) / 4 (max)

In short, the HPE JL256A PoE+ 4SFP+ 48 Ports Rack Mountable Managed Switch is a versatile networking solution that goes beyond basic connectivity. With its support for Jumbo Frames, extensive IPv4 and IPv6 routing table entries, and a large MAC Address Table, this switch is well-equipped to meet the demands of modern and future networks. This comprehensive guide has explored the technical specifications in detail, highlighting the benefits of Jumbo Frames and the switch's routing and MAC address management capabilities. By understanding and effectively utilizing these features, organizations can build and maintain a high-performance network infrastructure that caters to the evolving needs of the digital landscape.

Brand Warranty:
3 Years Warranty
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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Important notes:

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