Reading the first independent claim, from here on referred to as the claim, of US10630817B2 my understanding would be that they have patented any type of session-based load balancing, which includes for all sites using HTTPS where the TLS is offloaded to the load balancer.
But if one reads some of the figures and the abstract it's clear that they're referring to a destination options extension header, but in the claim, they are simply using the term header for the element which I then would assume to be any network message header.
My question is now, am I understanding this patent right, and isn't any website using HTTPS with offloading of the TLS handling to a load balancer infringing this patent?
I would think that the terms used as elements for the claim are way too broad. Also, session-based load balancing is most definitely prior art.