Link Aggregation Control Protocol (LACP)
Link Aggregation Control Protocol (LACP) is a standard protocol used for bundling multiple physical network connections together to form a single logical connection. This bundle of connections is known as a Link Aggregation (LAG) or Link Bundle. The purpose of LACP is to provide increased bandwidth and improved redundancy for network connections.
LACP works by using a negotiation protocol between network devices to dynamically discover and configure link aggregation groups. The protocol exchanges information between the devices to determine the best configuration for the link aggregation group and to ensure that the group operates correctly.
In a LAG configuration, data is transmitted over multiple physical connections simultaneously, providing increased bandwidth and fault tolerance. If one of the physical connections in the LAG fails, the others continue to provide network connectivity, maintaining network availability.
LACP is supported by most major network hardware vendors and is a standard part of the IEEE 802.3ad Link Aggregation specification. It is commonly used in data center and enterprise networks to provide high-speed, reliable network connections.
Network Management
Network management refers to the processes and tools used to monitor, configure, and control the performance and availability of a computer network. The goal of network management is to ensure that network resources are used efficiently, network availability is maximized, and network performance is optimized. This is achieved through the use of various network management tools, such as network performance monitoring software, network configuration management software, and network fault management software.
Some common tasks performed by network management include:
- Monitoring network performance and availability
- Configuring network devices
- Maintaining an inventory of network devices and configurations
- Managing network security
- Troubleshooting network problems
- Managing network upgrades
- Monitoring and controlling network resource usage
- Providing reporting and analysis of network performance and usage.
Network Time Protocol (NTP)
Network Time Protocol (NTP) is a protocol used to synchronize the clocks of computers in a network to a common, accurate time source. The purpose of NTP is to ensure that all devices in a network have consistent time and date information, which is important for many applications, such as logging and auditing events, accurate time-stamping of transactions, and coordinated activity across distributed systems.
NTP operates over the Internet Protocol (IP) and uses the User Datagram Protocol (UDP) as its transport mechanism. NTP clients periodically send time request messages to NTP servers and receive a time response message in return. The client uses the time information received from the server to adjust its local clock to the correct time.
There are many public NTP servers available on the Internet, and network administrators can also set up their own NTP servers within their own network. The accuracy of NTP depends on the quality of the time source used and the stability of the network connection between the NTP client and server.
General Information about the HPE J9470A
- Manufacturer Hewlett-Packard Enterprise
- Model Number or SKU# J9470A
- Product Line ProCurve
- Product Series 3500
- Product Model 3500-24
- Product Name ProCurve 3500-24 Ethernet Switch
- Product Type Ethernet Switch
Interfaces/Ports
- Total Number of Network Ports 24
- Number of Network (RJ-45) Ports 24
- Port/Expansion Slot Details 20 x Fast Ethernet Network, 4 x Gigabit Ethernet Network, 4 x Gigabit Ethernet Expansion Slot
Media & Performance
- Ethernet Technology Gigabit Ethernet
- Network Technology 10/100/1000Base-T, 10/100Base-TX
I/O Expansions
- Number of Total Expansion Slots 4
- Expansion Slot Type SFP
Network & Communication
- Layer Supported 3
Management & Protocols
- Manageable Yes
Power Description
- Input Voltage 110 V AC, 220 V AC
About Refurbished Products
Warranty
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.
Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.
Delivery
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.
- We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
- 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.
