Networking - Technology
Load balancer
A traffic manager that spreads incoming requests across multiple computers
What's it for?
Stops one computer becoming overloaded by spreading incoming work across several available machines.
For example…
Thousands of staff open the portal at 9am; the load balancer shares them across six web servers
A load balancer spreads website requests across four servers and stops sending traffic to one that fails its health check
Think of it like…
A group carrying bags of shopping, dividing them between themselves so no one person has too much to carry