How load balancers work - System Design Interview knowledge [Beyond the interview]

Here is the link.


Knowing about how a load balancer works is important for most software engineers. Load balancing algorithms and techniques can be useful for your next system design interview too. Besides that, it quite interesting! This video covers load balancing algorithms, how Google uses load balancing and traffic routing, a real word load balancing example for a web application, stateful load balancing and consistent hashing for load balancing.

Enumerate a few load balancers.

Enumerate a few benefits of load balancers.

IP range -

Transport layer - IP range -
Application layer  - conent header - Level 7 header
DNS load balancer - Uber heavy use on this


Two http server, one backend server