HP J9311A RJ 45 Switch
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HP J9311A ProCurve RJ-45 Gigabit Ethernet L3 Rack-mountable New

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Part Number#: J9311A
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Short Description:
J9311A ProCurve 3500yl-48G Power Over Ethernet Plus (PoE+) RJ-45 10/100/1000 Gigabit Ethernet Layer 3 Rack-mountable with 4x SFP (mini-GBIC) 48-Ports Managed Switch | Made by HP | Brand New 3 Years Warranty
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Simplifying Network Management

  • Utilize the web-based management interface for easy access and configuration of the switch.
  • Implement Quality of Service (QoS) to prioritize network traffic and ensure optimal performance.
  • Utilize Link Aggregation Control Protocol (LACP) to bundle multiple ports for increased bandwidth and redundancy.
  • Enable SNMP for monitoring and remote management of the switch.
  • Utilize VLANs to segment the network and improve security and performance.
  • Utilize Access Control Lists (ACLs) to restrict access to specific network resources.
  • Utilize the switch's built-in security features, such as port security and DHCP snooping, to protect against unauthorized access and network attacks.
  • Utilize firmware updates to ensure the switch is running the latest version and has the latest security patches.
  • Utilize the switch's logging and reporting capabilities to monitor network activity and troubleshoot issues.
  • Utilize the switch's stacking capabilities to manage multiple switches as a single entity, simplifying management and reducing configuration time.

Troubleshooting and Maintenance

  • Check the power status of the switch: Make sure the switch is properly plugged in and the power cord is securely connected. Check to see if the switch's power LED is lit and if not, try a different power outlet or power cord.
  • Check the connectivity of the switch: Make sure all cables are securely connected to the switch and the other devices. Check to see if the link LED on the switch is lit for each connected port.
  • Check the switch's firmware: Make sure the switch's firmware is up-to-date and compatible with the connected devices. If necessary, update the firmware using the ProCurve Manager software.
  • Check the switch's configuration: Make sure the switch is configured correctly and that the ports are assigned to the correct VLANs. Use the ProCurve Manager software to check and adjust the configuration as necessary.
  • Check for errors: Use the ProCurve Manager software to check for any errors or issues on the switch. Check the event logs for any reported problems and troubleshoot accordingly.
  • Clean the switch: Dust and debris can accumulate on the switch over time, causing issues with airflow and cooling. Use a soft, dry cloth to gently clean the switch and its vents.
  • Schedule regular maintenance: Regularly schedule maintenance to check for any issues and perform any necessary updates or configurations. This will help ensure the switch stays in optimal working condition.

Technical Specifications and Performance

  • 48 10/100/1000 ports
  • 4 SFP ports for optional fiber connectivity
  • L3 static routing capability
  • IPv4 and IPv6 support
  • Access Control Lists (ACLs) for security
  • Quality of Service (QoS) for traffic management
  • Link Aggregation Control Protocol (LACP) for link aggregation
  • Rapid Spanning Tree Protocol (RSTP) for loop prevention
  • Virtual LAN (VLAN) support for network segmentation
  • Layer 3 multicast support
  • Management options: web interface, command-line interface, SNMP, and RMON
  • Rack-mountable design with 1U height
  • Power supply: 100-240 VAC, 50-60 Hz
  • Power consumption: maximum of 150W
  • Operating temperature: 32°F to 104°F (0°C to 40°C)
  • Operating humidity: 10% to 90% non-condensing

General Information about the HP J9311A

  • Manufacturer: HP
  • Part Number or SKU# J9311A
  • Product Type: Rack-Mountable Switch

Technical Information

  • Ports : 48 X 10/100/1000 + 4 X Shared Sfp
  • Power Over Ethernet (Poe) : Yes
  • Routing Protocol : Rip-1, Rip-2, Static Ip Routing, Igmpv3
  • Remote Management Protocol : Snmp 1, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Telnet, Snmp 3, Snmp 2c, Http, Https, Ssh
  • Encryption Algorithm : Ssl
  • Authentication Method : Secure Shell (Ssh), Radius, Tacacs+, Secure Shell V.2 (Ssh2)
  • Processor : 1 X Freescale Powerpc 8540 : 666 Mhz
  • Ram : 256 Mb - Ddr Sdram
  • Flash Memory : 4 Mb Flash
  • Status Indicators : Port Status, Power

Expansion / Connectivity

  • Interfaces : 1 X Rs-232c - 9 Pin D-Sub (Db-9) - Management 48 X 10base-T/100base-Tx/1000base-T - Rj-45 - Poe 4 X Sfp (Mini-Gbic)
  • Expansion Slots Total (Free) 1 ( 1 ) X Expansion Slot

Dimensions & Weight

  • Width: 17.4 inch
  • Depth : 16.9 inch
  • Height : 1.7 inch
  • Weight : 15.54 lbs
Brand Warranty:
3 Years from the Manufacturer
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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Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
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  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.