Load Balancers Key Terms

Use load balancers to make networks run efficiently

Designing and managing computer networks involves routing large amounts of data packets every second. This is where load balancers come in. Load balancing ensures that each resource is responsible for carrying its own load. For example, a network might consist of five routers. However, one is performing 80% of the work. As a result, this router is overworked and will likely malfunction. Load balancing ensures that each router carries 20% of the work.

 

Load balancing

Load balancing involves evenly distributing work between network devices, such as computers and routers. That way, no single device is heavily burdened with work. Load balancing is designed to help networks run more efficiently.
Try: TechTerms provides good information about how load balancing works.

Clusters

Clusters are multiple computers that work together in order to perform a task. Acting as one computer, clusters perform tasks that require a lot of processing power. Companies use clusters for performing computer rendering, simulations or scientific calculations. Clusters use load balancing to spread the work around.
Try: Learn how load balancing plays an important role for clusters by checking Instantlabs.

Layer 3 switch

A Layer 3 switch is a high-performance switch that can perform similar functions as a network router. Also known as a multi-layer switch, it can filter and forward packets based on network addresses and MAC addresses. It is an intelligent device because it can analyze an incoming packet and determine what's the best way to route it.
Try: Get a complete understanding of how Layer 3 switching works by reading the guide at Cisco. Cisco has a section that shows how the Layer 3 switching software supports load balancing.

Redundancy

Redundancy occurs when a second computer or network device takes over after the primary one fails. Redundancy plays a crucial role in that it helps to keep the network running smoothly.
Try: Visit TechRepublic to learn how redundancy and load balancing play important roles for the Fast EtherChannel.

Failover

Failover is the ability to switch over to the redundant network device once the primary one has failed. This function can either be set up manually or automatically.
Try: Microsoft discusses how to set up failover support for network load balancing.

RAID

RAID stands for Redundant Array of Independent Disks. This is a disk subsystem that is designed to enhance performance or fault tolerance. When the drives mirror each other, they perform 100 percent duplication. RAID drives come in different levels and perform different functions.
Try: Learn more about the different levels of RAID from Aspen Systems. RAID Level 0+1 uses striping, which offers load balancing, as well as enhancing read and write performance.

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