If you are going to be at IETF 105 in Montreal, here are some interesting events:
1) There is a hackathon tomorrow which is free to participate in (registration required):
https://www.ietf.org/how/runningcode/hackathons/105-hackathon/
If you look at the projects you may recognize some people, example: Look at "IOAM IPv6 options"
There are a lot of other projects and endless supply of food and drinks.
2) Come see some of our very own give an amazing dive into how NICs work on Tuesday.
https://datatracker.ietf.org/meeting/105/materials/agenda-105-tdd-01
cheers, jamal