Facebook’s DHCP infrastructure and traffic imbalance Last year we talked about our production DHCP infrastructure and how we use ISC KEA in production to deploy a stateless and dynamic DHCP server across the fleet. At the time, we used a hash-based ECMP selection algorithm for our BGP anycast IP distribution. A question arose about whether the DHCP traffic was well-balanced across our KEA servers.
![DHCPLB: An open source load balancer](https://cdn-ak-scissors.b.st-hatena.com/image/square/770d55d20fc618b776b0255c54f82f03cfb99dab/height=288;version=1;width=512/https%3A%2F%2Fengineering.fb.com%2Fwp-content%2Fuploads%2F2016%2F09%2Fgbcr2wcfhavqkkgfajcjzq4aaaaabj0jaaab.jpg)