> However, you may break PMTU discovery. > https://tools.ietf.org/html/draft-jaeggli-v6ops-pmtud-ecmp-problem-00
Correct, ECMP towards different servers will always break PMTU. Thats why in this case you need hacks such as this one: https://github.com/cloudflare/pmtud ... and why you shouldn't just enable ECMP without thorough understanding. Lukas
