Rootconf Delhi edition

Rootconf Delhi edition

On network engineering, infrastructure automation and DevOps



Shrey Agarwal


Load balancing: in-depth study to scale @80K TPS

Submitted Aug 21, 2019

  • Introduction to different methodologies and topologies of load balancing.
  • Discussion of pros and cons of different topologies and tech.
  • Planning and setup of the applications,

Key takeaways

  • Types of loadbalancing strategies.
  • Software routing , how it happens in multi tier and datacentre setups.
  • How to handle extraordinary scale of TCP/Http traffic.

Intended audience

  • any devops/full-stack eng. who is planning a service setup and looking for evaluation on solutions


  • Referencing the 13 yr old article of willy tarreau ( 2006 )

  • 5 categories of LB

  • Evaluation params of LBs

  • DNS Load Balancing Detail
  • Layer 3/4 Loadbalancing
  • Haproxy example and monitoring params
  • Layer 7 Loadbalancing

  • Hardware and Software Routing ( setups and cases of each )

  • LVS: history and implementation

  • NAtting

  • Direct Routing

  • Tunnel Based routing

  • RP Filter

  • What to monitor

  • Interrupts handling and CPU affinity

  • HA with Keepalived and consul

  • References

Speaker bio

I am involved with researching the tech of the project, and planning the setup of tech of the project in my Org.



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